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XTR 850 Watt Series
Programmable DC
Power Supply
(firmware version 1.09 and below)
XTR 6-110
XTR 8-100
XTR 12-70
XTR 20-42
XTR 33-25
XTR 40-21
XTR 60-14
XTR 80-10.5
XTR 100-8.5
XTR 150-5.6
XTR 300-2.8
XTR 600-1.4
Operating Manual
www.programmablepower.com
XTR 850 Watt Series
Programmable DC Power
Supply
(firmware v1.09 and below)
Operating Manual
About Xantrex
Xantrex Technology Inc. is a world-leading supplier of advanced power electronics and controls with products from small mobile units to utility-scale systems for wind, solar, batteries, fuel cells, microturbines, and backup power applications in both grid-connected and stand-alone systems. Xantrex products include inverters, battery chargers, programmable power supplies, and variable speed drives that convert, supply, control, clean, and distribute electrical power.
Trademarks
XTR 850 Watt Series Programmable DC Power Supply is a trademark of Xantrex International.
Xantrex is a registered trademark of Xantrex International.
Other trademarks, registered trademarks, and product names are the property of their respective owners and are used herein for identification purposes only.
Notice of Copyright
XTR 850 Watt Series Programmable DC Power Supply Operating Manual © March 2008 Xantrex
International. All rights reserved.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, XANTREX TECHNOLOGY INC.
(“XANTREX”)
( A ) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF
ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.
( B ) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR
EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL,
WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH
INFORMATION WILL BE ENTIRELY AT THE USER’S RISK; AND
( C ) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN
ENGLISH, ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED XANTREX
CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION WHICH IS POSTED
AT WWW.PROGRAMMABLEPOWER.COM.
Date and Revision
March 2008 Revision D
Part Number
M370046-01
M370046-01 ii
Product Numbers (FGAs)
(firmware v1.09 and below)
XTR6-110
XTR8-100
XTR12-70
XTR20-42
XTR33-25
XTR40-21
XTR60-14
XTR80-10.5
XTR100-8.5
XTR150-5.6
XTR300-2.8
XTR600-1.4
Part Numbers for Rack Mount Kits
Rack Mount Kit Part Number
Dual XTR 850 Watt RM-D-XTR1
Single XTR 850 Watt RM-S-XTR1
Rack mount rails for
XTR Series
RM-XTR
Contact Information
Telephone: 1 800 733 5427 (toll free North America)
1 858 450 0085(direct)
Fax:
Email:
Web:
1 858 458 0267 [email protected]
www.programmablepower.com
M370046-01 iii
About This Manual
(firmware v1.09 and below)
Purpose
The Operating Manual provides installation and operating information for the XTR 850 Watt Series Programmable DC Power Supply.
Scope
The Manual provides safety information, features and specifications, installation procedures, functional test procedures, and operating procedures for both local (front panel) operation and remote operation.
The Manual does not provide information on the GPIB and Ethernet
(ENET) interface options. See the XTR 850 Watt GPIB and Ethernet
Interface Option Operating Manual (Part number M370046-06) .
Audience
The Manual is intended for the user who is familiar with electronic power supplies, Constant Voltage and Constant Current operating modes, and the control of output power. The user should be familiar with practicing safe techniques while making supply or pin connections.
Conventions Used
The following conventions are used in this guide.
WARNING
Warnings identify conditions or practices that could result in personal injury or loss of life.
CAUTION
Cautions identify conditions or practices that could result in damage to the unit or other equipment.
Important: Important notes provide information that is important for you to know. They are not as serious as Warnings or Cautions.
M370046-01 v
About This Manual (firmware v1.09 and below)
Related Information
For related information on this product, see also:
• XTR 850 Watt GPIB and Ethernet Interface Option Operating
Manual (Part number M370046-06) provides information on the
GPIB and Ethernet interface option.
• XTR 850 Watt Series Programmable DC Power Supply: Quick
Reference Guide (Part number M370046-04) is included with your power supply and provides an introduction to using the front panel interface.
• Rack Mount Kit Options Installation Instructions (Part number
M370046-05) provides information on rack mounting a single or dual XTR 850 Watt.
More information about Xantrex Technology Inc. as well as its products and services is available at www.programmablepower.com.
Acronyms
Acronym
APG
AUX
ENET
FGA
ISOL
OTP
OVP
PSU
TVS
UVP
Definition
Analog Programming
Auxiliary
Ethernet
Finished Goods Assembly
Isolated Analog Programming
Over Temperature Protection
Over Voltage Protection
Power Supply Unit
Transient Voltage Suppressor
Under Voltage Protection
Font Conventions
This Manual uses the following typographical conventions:
7 segment For display and readback information on the output voltage and current displays.
Command body text Represents SCPI commands.
vi M370046-01
Important Safety Instructions
WARNING: High energy and high voltage
Exercise caution when using a power supply. High energy levels can be stored at the output voltage terminals on a power supply in normal operation. In addition, potentially lethal voltages exist in the power circuit and on the output and sense connectors of a power supply with a rated output greater than 40 V. Filter capacitors store potentially dangerous energy for some time after power is removed.
WARNING: Fire hazard
Operate the power supply in an environment free of flammable gases or fumes.
To ensure that the power supply's safety features are not compromised, use the power supply as specified in this Manual and do not substitute parts or make any unauthorized modifications. If service is necessary, please return the power
supply to the Authorized Service Center. See “Warranty” on page WA–1.
WARNING: Limitations on use
The XTR 850 Watt Series Programmable DC Power Supply is not intended for use in connection with life support systems or other medical equipment or devices.
CAUTION: For use as a battery charger
When you are using a power supply for battery charging applications, it is essential to provide an appropriately sized fuse or circuit breaker in series between the power supply output and the battery.
Installation of a protector (fuse or DC circuit breaker), rated for about 115% of the maximum current rating of the power supply and designed specifically to interrupt the DC voltage of the battery, will provide adequate current protection.
Where several power supplies are in parallel, it is best to fuse each power supply rather than use one fuse at the battery.
Power Supply Safety Markings
Alternating Current
Earth (Ground) Terminal
Protective Conductor
Terminal
On (Supply)
Off (Supply)
Caution (Check the Manual for additional information.)
M370046-01 vii
Safety
Standard Warnings
WARNING: Keep these instructions
This chapter contains important safety and operating instructions. Read and keep this Operating Manual for future reference.
1. Before installing and using the XTR 850 Watt Series Programmable
DC Power Supply, read all instructions and cautionary markings on the XTR and all appropriate sections of this Manual.
2. The XTR is for indoor use only. Do not expose the XTR to moisture.
To reduce risk of fire hazard, do not cover or obstruct the ventilation openings. Be sure to install the XTR in a compartment which allows air to reach the ventilation inlets on the front and rear of the unit to
prevent overheating. For more information, see “Ventilation” on page 2–4.
3. To avoid a risk of fire and electric shock, make sure that the existing wiring is in good condition and the wire is not undersized. Do not operate the XTR with damaged or substandard wiring.
4. Do not operate the XTR if it has received a sharp blow, been dropped, or otherwise damaged in any way. If the XTR is damaged, see
“Warranty and Product Information” on page WA–1.
5. Do not disassemble the XTR. It contains no user-serviceable parts.
See the “Warranty and Product Information” on page WA–1 for
instructions on obtaining service. Attempting to service the XTR yourself may result in a risk of electrical shock or fire. Internal capacitors remain charged after all power is disconnected.
6. To reduce the risk of electrical shock, disconnect AC power from the
XTR before attempting any maintenance or cleaning or working on any circuits connected to the XTR. Turning off controls will not reduce this risk.
viii M370046-01
Contents
Important Safety Instructions
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - vii
1 Introduction
XTR 850 Watt Models (firmware v1.09 and below) - - - - - - - - - - - - - - - - - - - - - -1–3
Front Panel Display and Controls - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1–5
2 Installation
Purchasing Rack Mount Kits - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–4
Powering the Power Supply On/Off - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–8
Voltage and Current Mode Operation Checks - - - - - - - - - - - - - - - - - - - - - - - -2–9
Connecting Multiple Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–12
M370046-01 ix
x
Contents
3 Local Operation
Using the 9-Position Mode Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–2
Using the Rotary Adjust/Enter Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–2
Coarse and Fine Adjustment Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–3
Setting VOLTS and AMPS Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3–5
Normal Display Mode and Inactivity Timeout - - - - - - - - - - - - - - - - - - - - - - - -3–7
Shipped Configuration (Local Operation) - - - - - - - - - - - - - - - - - - - - - - - - - - 3–15
Front Panel ALARM LED - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–20
Resetting Activated Foldback Protection - - - - - - - - - - - - - - - - - - - - - - - - - - 3–24
Using Over Temperature Protection Lock (OTP) - - - - - - - - - - - - - - - - - - - - - - - 3–29
Defining the OTP Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–29
Activating the External Shutdown Function - - - - - - - - - - - - - - - - - - - - - - - - 3–30
Controlling the External Shutdown Function - - - - - - - - - - - - - - - - - - - - - - - - 3–30
M370046-01
Contents
Defining the Polarity of the External Shutdown Signal - - - - - - - - - - - - - - - - - 3–31
Current Configuration Memory Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–34
Saving User Setting Memory Locations - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–35
Recalling User Setting Memory Locations - - - - - - - - - - - - - - - - - - - - - - - - - 3–36
Configuring Multiple Supplies for Series Operation - - - - - - - - - - - - - - - - - - - 3–43
Configuring Multiple Supplies for Current Sharing Operation (APG Method) - 3–45
Connecting to the Load in Local Sensing Mode (Parallel Control Method) - - - 3–47
Connecting to the Load in Remote Sensing Mode (Parallel Control Method) - - 3–48
4 Analog Programming (APG) and Isolated Analog Programming (ISOL)
Analog Programming (APG) of Output Voltage and Output Current - - - - - - - - -4–2
Remote Programming Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -4–3
Analog Programming (APG) Connector J1 - - - - - - - - - - - - - - - - - - - - - - - - - -4–5
Analog Programming With External Voltage Source - - - - - - - - - - - - - - - - - - -4–9
Voltage-Controlled Voltage APG Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–10
Voltage-Controlled Current APG Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–12
Resistive-Controlled Voltage APG Setup - - - - - - - - - - - - - - - - - - - - - - - - - - 4–15
Resistive-Controlled Current APG Setup - - - - - - - - - - - - - - - - - - - - - - - - - - 4–17
Voltage and Current Readback - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–19
Isolated Analog Programming Mode (ISOL) - - - - - - - - - - - - - - - - - - - - - - - - - - 4–20
AUX Output and Isolated Analog Programming (ISOL) Connector - - - - - - - - 4–20
Voltage-Controlled Voltage ISOL Setup - - - - - - - - - - - - - - - - - - - - - - - - - - 4–24
Voltage-Controlled Current ISOL Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–26
Resistive-Controlled Voltage ISOL Setup - - - - - - - - - - - - - - - - - - - - - - - - - - 4–29
Resistive-Controlled Current ISOL Setup - - - - - - - - - - - - - - - - - - - - - - - - - - 4–31
xi M370046-01
Contents
5 Remote Operation
Configuring Remote Control Using RS-232 - - - - - - - - - - - - - - - - - - - - - - - - -5–3
Configuring Remote Control Using RS-485 - - - - - - - - - - - - - - - - - - - - - - - - -5–7
Configuring Remote Control using the USB Connector - - - - - - - - - - - - - - - - -5–9
Setting Up the PC to Use the USB Connection - - - - - - - - - - - - - - - - - - - - - - -5–9
Ethernet (ENET) or GPIB Connector (Optional) - - - - - - - - - - - - - - - - - - - - - 5–15
Multiple Power Supply Connections to RS-485 Bus - - - - - - - - - - - - - - - - - - - 5–15
Selecting the Appropriate Communication Port - - - - - - - - - - - - - - - - - - - - - - 5–20
Remote Interface Addressing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–22
Multichannel Commands Explained - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–23
Error/Event Queue (ERR) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–28
Questionable Status Register Summary (QSR) - - - - - - - - - - - - - - - - - - - - - - 5–28
Message Available (MAV) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–29
Standard Event Status Summary (ESB) - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–29
Master Summary Status (MSS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–29
Operation Status Register Summary (OSR) - - - - - - - - - - - - - - - - - - - - - - - - - 5–30
Standard Event Status Register (SESR) - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–31
Operation Status Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–39
Current Sharing Sub-Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - 5–40
xii M370046-01
Contents
Shutdown Sub-Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–41
Protection Sub-Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–42
TEMPerature Sub-Register - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–46
Questionable Status Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - 5–47
Voltage Status Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–48
Temperature Status Register Commands - - - - - - - - - - - - - - - - - - - - - - - - - - 5–49
Command Line Help System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–55
Auto Sequence Programming - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–60
Configure Other Protection Mechanisms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–67
Over Temperature Protection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–68
Set Analog Programming Level - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–69
Set Remote Programming Interface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–70
Protection Mask (Enable Alarms) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–71
A SCPI Command Reference
IEEE 488.2/SCPI Syntax and Style - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–2
SCPI Command Hierarchy - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–3
Using SCPI Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–4
SCPI Command Summary - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–14
B Calibration and Troubleshooting
Main Voltage and Current Calibration Principle - - - - - - - - - - - - - - - - - - - - - - - - B–3
Understanding the Problem - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B–3
xiii M370046-01
Contents
Non-isolated Analog Programming Calibration- - - - - - - - - - - - - - - - - - - - - - - - -B–10
Non-isolated Voltage Monitoring Calibration - - - - - - - - - - - - - - - - - - - - - - -B–10
Non-isolated Current Monitoring Calibration - - - - - - - - - - - - - - - - - - - - - - -B–11
Non-isolated Voltage Programming of Voltage Calibration - - - - - - - - - - - - - -B–12
Non-isolated Resistive Programming of Voltage Calibration - - - - - - - - - - - - -B–13
Non-isolated Voltage Programming of Current Calibration - - - - - - - - - - - - - -B–14
Non-isolated Resistive Programming of Current Calibration - - - - - - - - - - - - -B–15
Calibration Procedure for Isolated Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–16
Isolated Voltage Monitoring Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - -B–16
Isolated Current Monitoring Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - -B–17
Isolated Voltage Programming of Voltage Calibration - - - - - - - - - - - - - - - - -B–18
Isolated Resistive Programming of Voltage Calibration - - - - - - - - - - - - - - - -B–19
Isolated Voltage Programming of Current Calibration - - - - - - - - - - - - - - - - -B–20
Isolated Resistive Programming of Current Calibration - - - - - - - - - - - - - - - - -B–21
Calibrating the Input Voltage APG Signal - - - - - - - - - - - - - - - - - - - - - - - - -B–22
Calibrating the Input Current APG Signal - - - - - - - - - - - - - - - - - - - - - - - - - -B–23
Storing and Loading Calibration Parameters- - - - - - - - - - - - - - - - - - - - - - - - - - -B–25
Emergency Shutdown - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–27
Unusual or Erratic Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–27
Troubleshooting for Operators - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–28
B Error Messages
xiv M370046-01
Contents
C Specifications
Electrical Specifications for XTR 850 Watt - - - - - - - - - - - - - - - - - - - - - - - - - - - C–2
AC Line Input Specifications for XTR 850 Watt - - - - - - - - - - - - - - - - - - - - - C–3
Common Specifications for All Models - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C–5
Warranty and Product Information
- - - - - - - - - - - - - - - - - - - - - - - - - -WA–1
Index
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IX–1 xv M370046-01
xvi
Figures
Figure 1-5 Rear Panel: 300 V to 600 V Models - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6
Figure 2-1 Maximum Load Wire Length for 1 V Line Drop- - - - - - - - - - - - - - - - - - 2–7
Figure 3-7 Load Connections in Remote Sensing Mode - - - - - - - - - - - - - - - - - - - 3–44
Figure 3-8 Load Connections in Local Sensing Mode - - - - - - - - - - - - - - - - - - - - - 3–47
Figure 3-9 Load Connections in Remote Sensing Mode (Parallel Control Method) - 3–48
Figure 4-2 Inserting Screwdriver into Spring Terminal Block - - - - - - - - - - - - - - - - 4–7
Figure 4-3 APG and DC Output Connector - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–7
Figure 4-4 Programming Output Voltage using an External Voltage Source - - - - - - - 4–9
Figure 4-5 Programming Output Current using an External Voltage Source - - - - - - - 4–9
Figure 4-6 Programming Output Voltage using an External Resistor - - - - - - - - - - - 4–14
Figure 4-7 Programming Output Current using an External Resistor - - - - - - - - - - - 4–14
Figure 4-8 Voltage Readback Using APG Connector J1 - - - - - - - - - - - - - - - - - - - 4–19
Figure 4-9 Current Readback Using APG Connector J1 - - - - - - - - - - - - - - - - - - - 4–19
Figure 4-10 AUX Output and ISOL Connector Pinout - - - - - - - - - - - - - - - - - - - - - 4–20
Figure 4-11 Programming Output Voltage using an Isolated External Voltage Source 4–23
Figure 4-12 Programming Output Current using an Isolated External Voltage Source 4–23
Figure 4-13 Programming Output Voltage using an Isolated External Resistor - - - - - 4–28
Figure 4-14 Programming Output Current using an Isolated External Resistor - - - - - 4–28
M370046-01 xvii
Figures
Figure 5-2 RS-232 Communication Cable with DB-9 Pinout - - - - - - - - - - - - - - - - - 5–5
Figure 5-4 RS-232 Communication Cable with DB-25 Pinout - - - - - - - - - - - - - - - - 5–6
Figure 5-5 RS-485 Communication Cable with DB-9 - - - - - - - - - - - - - - - - - - - - - - 5–7
Figure 5-6 RS-485 Communication Cable from Master to Slave Unit - - - - - - - - - - - 5–8
Figure 5-7 Found New Hardware Wizard - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–10
Figure 5-9 Completing the New Hardware Wizard - - - - - - - - - - - - - - - - - - - - - - - 5–11
Figure 5-11 Communications Port (COM1) Properties - - - - - - - - - - - - - - - - - - - - - 5–13
Figure 5-12 Completing the new hardware wizard - - - - - - - - - - - - - - - - - - - - - - - - 5–13
Figure 5-13 Multi Power Supply Connection to RS-485 Bus - - - - - - - - - - - - - - - - - 5–15
Figure 5-18 Summary of Standard Event Status Register - - - - - - - - - - - - - - - - - - - 5–32
Figure 5-21 SCPI QUEStionable Registers Fanout- - - - - - - - - - - - - - - - - - - - - - - - 5–44
Figure B-1 Offset (Intercept) Error and Gain (Slope) Error- - - - - - - - - - - - - - - - - - - B–3
Figure C-1 XTR 850 Watt Mechanical Dimensions: 6 to 40 V Models - - - - - - - - - - C–7
Figure C-2 XTR 850 Watt Mechanical Dimensions: 60 V to 600 V Models - - - - - - - C–8
M370046-01 xviii
Tables
Table 1-1 XTR 850 Watt Series Voltage and Current Ranges - - - - - - - - - - - - - - - - 1–3
Table 2-2 Current Carrying Capacity for Load Wiring - - - - - - - - - - - - - - - - - - - - - 2–6
Table 3-7 Power Cycle Saved/Recalled Settings - - - - - - - - - - - - - - - - - - - - - - - - 3–34
Table 3-8 User Accessible Saved/Recalled Settings- - - - - - - - - - - - - - - - - - - - - - 3–35
Table 4-2 Remote Programming Options- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4
Table 4-4 AUX Output and ISOL Connector Pins and Functions J3- - - - - - - - - - - 4–21
Table 5-1 Remote Control Connector Pins and Functions J4 and J6 - - - - - - - - - - - - 5–3
Table 5-8 Rules for Multichannel Responses - - - - - - - - - - - - - - - - - - - - - - - - - - 5–23
Table 5-9 Status Byte Summary Register- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–28
Table 5-12 OPERation SHUTdown Status Register - - - - - - - - - - - - - - - - - - - - - - 5–37
Table 5-13 OPERation SHUTdown PROTection Status Register - - - - - - - - - - - - - 5–37
Table 5-14 OPERation CSHare Status Register - - - - - - - - - - - - - - - - - - - - - - - - - 5–38
Table 5-16 QUEStionable VOLTage Status Register- - - - - - - - - - - - - - - - - - - - - - 5–46
M370046-01 xix
Tables
Table 5-17 QUEStionable TEMPerature Status Register - - - - - - - - - - - - - - - - - - - - 5–46
Table 5-18 Preset Values of User Configurable Registers - - - - - - - - - - - - - - - - - - - 5–54
Table A-1 IEEE 488.2 Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–14
Table A-3 SCPI Commands for Output Control - - - - - - - - - - - - - - - - - - - - - - - - A–17
Table A-4 SCPI Commands for Calibration - - - - - - - - - - - - - - - - - - - - - - - - - - - A–18
Table A-5 SCPI Commands to Clear All Protection Mechanisms- - - - - - - - - - - - - A–21
Table A-6 SCPI Commands for Foldback Protection - - - - - - - - - - - - - - - - - - - - - A–21
Table A-7 SCPI Commands for Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–22
Table A-8 SCPI Commands for Triggering - - - - - - - - - - - - - - - - - - - - - - - - - - - A–22
Table A-12 Auto Sequence Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–34
Table C-1 XTR 850 Watt Electrical Specifications for 6 V to 600 V Models - - - - - - C–2
xx M370046-01
1
Introduction
Chapter 1, Introduction, describes the features of the XTR
850 Watt Series Programmable DC Power Supply.
Introduction
Features and Options
The XTR 850 Watt Series Programmable DC Power Supply provides stable, variable output voltage and current for a broad range of development and system requirements. The power supplies have a high power density and numerous industry standard interfaces:
• RS-232, RS-485, analog programming (APG), isolated analog programming (ISOL), and USB built-in ports.
• Optional GPIB or Ethernet (ENET) control for remote operation and readback.
• Seamless switching between front panel and any digital interface
(RS-232, RS-485, USB, GPIB or ENET).
• Simultaneous digital displays for both voltage and current.
• Front panel control by rotary Adjust/Enter knob, permitting high resolution output setting.
• Active Power Factor Correction (PFC) reduces input current and input current harmonics.
• Automatic crossover system allowing the power supply to switch between Constant Current and Constant Voltage operating modes.
• Parallel or series connection among multiple units to produce greater diversity or to use in higher power applications.
• Short-circuit protection of DC outputs provideing greater operating safety.
• Built-in APG and ISOL interface to provide a galvanically isolated analog voltage control of the output, master/slave output tracking, and remote Enable/disable for safety and precision.
• Remote output voltage sensing to automatically compensate for cable losses.
• Software calibrated.
• Three user setting memory locations.
1-2 M370046-01
XTR 850 Watt Models (firmware v1.09 and below)
XTR 850 Watt Models
(firmware v1.09 and below)
Table 1-1 lists the models in the XTR 850 Watt series covered by this
Manual.
Table 1-1 XTR 850 Watt Series Voltage and Current Ranges
Model
6-110
8-100
12-70
20-42
33-25
40-21
60-14
80-10.5
100-8.5
150-5.6
300-2.8
600-1.4
Output Voltage
0–6 V
0–8 V
0–12 V
0–20 V
0–33 V
0–40 V
0–60 V
0–80 V
0–100 V
0–150 V
0–300 V
0–600 V
Output Current
0–110 A
0–100 A
0–70 A
0–42 A
0–25 A
0–21 A
0–14 A
0–10.5 A
0–8.5 A
0–5.6 A
0–2.8 A
0–1.4 A
1
M370046-01 1-3
Introduction
Front Panel
Figure 1-1 XTR 850 Watt Front Panel
Item Description
1
2
3
Front panel power switch
Front panel display. See Figure 1-2 for details.
Air Intake Vents
1-4 M370046-01
Front Panel Display and Controls
Front Panel
1
Figure 1-2 Front Panel Display and Controls
Item Description
7
8
5
6
9
3
4
1
2
Rotary Adjust/Enter control
Constant Voltage (CV) Mode LED (green)
Output Voltage Display
Constant Current (CC) Mode LED (green)
Output Current Display
Alarm Indicator LED (red)
OUTPUT ENABLE Main button
OUTPUT ENABLE Aux button
9-Position Mode Control (For detailed information, see “Configuring Settings from the
M370046-01 1-5
Introduction
Rear Panel Connectors
1 2 3 4
J2
J4
J3
J1
6 7 8
Figure 1-3 Rear Panel: 6 V to 40 V Models
9
J5
1 2 3
J2
J4
J6
10
4
J3
J1
SN
9
J5
6 7 8
Figure 1-4 Rear Panel: 60 V to 150 V Models
J6
10
1 2 3 4
J2
J4
J1
J3
SN
J5 J6
6 7 8 9
Figure 1-5 Rear Panel: 300 V to 600 V Models
10
1-6
5
11
100 - 240 Vac
47-63 Hz, 11.5 –6A
MADE IN CANADA
5
11
100 - 240 Vac
47-63 Hz, 11.5 –6A
MADE IN CANADA
5
100 - 240 Vac
47-63 Hz, 11.5 –6A
MADE IN CANADA
11
M370046-01
Rear Panel Connectors
Item Description
1
2
6 V– 40 V Models: DC Output Terminal Positive
60 V–150 V Models: DC Output Connectors Positive (6.5 mm hole diameter)
300 V–600 V Models: DC Output Connectors Positive (6.5 mm hole diameter)
6 V– 40 V Models: DC Output Terminal Negative
60 V–150 V Models: DC Output Connectors Negative (6.5 mm hole diameter)
300 V–600 V Models: DC Output Connectors Negative (6.5 mm hole diameter)
5
6
3 (J2) Ethernet (ENET) or GPIB Connector (optional)
4 (J4) RS-232/RS-485 Connector In Port
AC Input Connector (IEC Type)
Chassis Ground Stud
7 (J1)
Analog Programming (APG) Connector. For pin information, see page 4–5.
8 (J3) AUX Output and Isolated Analog Programming (ISOL) Connector. For pin information, see
9 (J5) USB Connector
10 (J6) RS-485 Connector Multichannel Port
11 Fan Exhaust Vents
1
M370046-01 1-7
1-8
2
Installation
Chapter 2, Installation, provides information and
procedures for inspecting, installing, and testing the power supply.
Installation
Basic Setup Procedure
Table 2-1 provides a summary of the basic setup procedure with
references to the relevant sections in this chapter. Refer to this table if you are unfamiliar with the installation requirements for the power supply.
Complete each step in the sequence given.
Table 2-1 Basic Setup Procedure
Step Description
1 Inspect
2
3
4
5
6
7
Install
Connect Input
Power
Select Wires
Test
Connect Loads
Connect Remote
Sensing (if required)
Action
Inspect the power supply.
Install the power supply
(benchtop or rack mount).
Ensure adequate ventilation.
Connect AC input power.
Reference
“Step 1: Inspecting and Cleaning” on page 2–3.
“Step 2: Location and Mounting” on page 2–4.
Select wires that are correctly rated for the maximum DC output current.
Perform functional tests for voltage mode operation, current mode operation, and front panel controls.
Connect the load wires to the
DC output.
Connect remote sensing connectors on power supply to load.
“Step 4: Selecting Load Wires” on page 2–6.
“Step 5: Performing Functional
“Step 6: Connecting Loads” on page 2–10.
2-2 M370046-01
Step 1: Inspecting and Cleaning
Step 1: Inspecting and Cleaning
Initial Inspection
When you first receive your unit, perform a physical check:
1. Inspect the unit for any scratches and cracks, broken switches, connectors or displays.
2. Ensure that the packing box contains the 7.5 foot (2.5 m) power cord.
3. If you see external damage or suspect internal damage, contact
Xantrex Customer Service (see Contact Information on page iii) for
an assessment. If the unit is damaged, save all packing materials and notify Xantrex Customer Service immediately. See packing
instructions in “Warranty” on page WA–1.
Periodic Cleaning
The power supply only requires periodic cleaning, not routine servicing.
Whenever a unit is removed from operation, clean the metal surfaces with naptha or an equivalent solvent, and clean the front panel with a weak solution of soap and water. Use low-pressure compressed air to blow dust from components on the printed circuit boards.
2
M370046-01 2-3
Installation
Step 2: Location and Mounting
The power supply may be rack-mounted or used in benchtop applications.
Rack Mounting
The XTR 850 Watt power supply is designed to fill half of a standard
19 inch (483 mm) equipment rack.
Units can be combined with the same models in the 850 W series for customer applications.
Purchasing Rack Mount Kits
are provided with the rack mount kits.
For XTR product support, visit www.programmablepower.com and navigate to the XTR home page.
Ventilation
Whether operating the power supply in a rack or on a bench, allow air to reach the ventilation inlets on the front and rear of the unit for cooling.
The direction of airflow is from the front of the unit to the back of the unit. Ventilation space is not required at the top, bottom or sides of the power supply.
2-4 M370046-01
Step 3: Connecting AC Input Power
Step 3: Connecting AC Input Power
WARNING: Shock hazard
Disconnect AC power from the unit before removing the cover. Even with the front panel power switch in the Off position, live line voltages are exposed when the cover is removed. Repairs must be made by an Authorized Service Center.
WARNING: Shock hazard
There is a potential shock hazard if the power supply chassis and cover are not connected to an electrical ground via the safety ground in the AC input connector. Ensure that the power supply is connected to a grounded AC outlet with the recommended AC input cord configured for the available line voltage as described in this section.
WARNING: Shock hazard
The AC input cord is the disconnect device for the power supply. The plug must be a non-locking plug which is readily identifiable by and accessible to the operator. The input cord must be no longer than 9.84 feet (3 m).
AC Input Connector
The AC input connector is a standard IEC 16 A 250 V male connector located on the rear panel of the power supply. The AC input cord provided is rated for 30 A, 300 V and appropriate for use in any country.
2
M370046-01 2-5
Installation
Step 4: Selecting Load Wires
This section provides recommendations for selecting minimum load wire sizes.
Load Wiring
To select the wiring for connecting the load to the power supply, consider the following factors:
• Insulation rating of the wire.
• Current carrying capacity of the wire.
• Maximum load wiring length for operation with remote sense lines.
• Electrical noise and impedance effects of the load lines.
Insulation Rating
Use load wiring with a minimum insulation rating equivalent to the maximum output voltage of the power supply.
Current Carrying Capacity
The load wiring must have a current carrying capacity greater than the output rating of the power supply to ensure that the load wiring will not be
damaged if the load is shorted. Table 2-2 shows the maximum current
rating for various gauges of wire rated for 105 °C operation, based on a maximum current density of 450 A/cm
2
.
Operating at the maximum current rating shown in Table 2-2 results in an
approximately 30 °C temperature rise for an appropriately-sized load wire operating in free air. Where load wiring must operate in areas with elevated ambient temperatures or bundles with other wiring, use larger gauges or wiring rated for higher temperatures.
Table 2-2 Current Carrying Capacity for Load Wiring
Wire Size
(AWG)
14
12
10
8
20
18
16
Maximum Current
(Amps)
10
16
21
36
2.5
4
6
Wire Size
(AWG)
6
4
2
1
1/0
2/0
Maximum Current
(Amps)
61
97
155
192
247
303
2-6 M370046-01
Step 4: Selecting Load Wires
Maximum Load Wiring Length For Operation With Sense Lines
2
Figure 2-1 Maximum Load Wire Length for 1 V Line Drop
Noise and Impedance Effects
To minimize noise pickup or radiation, use shielded twisted pair wiring of the shortest possible length for load sense wires. Connect the shield to the power supply chassis. Where shielding is impossible or impractical, simply twisting the wires together will offer some noise immunity.
M370046-01 2-7
Installation
Step 5: Performing Functional Tests
The functional test procedures include:
• Power-on and front panel functional checks
• Voltage mode operation and current mode operation checks.
For information on local operation, see “Local Operation” on page 3–1
for adjusting front panel controls and settings.
Powering the Power Supply On/Off
To power on the power supply:
1. Ensure that the front panel power switch is in the Off position.
2. Ensure that the AC line voltage is within operating range.
3. Connect the line cord to a grounded AC outlet.
4. Turn the front panel power switch to the On position.
After a short power-on delay, 8888 8888 illuminates on the output voltage and current displays, followed by PSU On .
After approximately 1 second, the display returns to normal status.
To power off the power supply:
◆ Turn the front panel power switch to the Off position.
AC FAIL will blink on the display. The ALARM LED illuminates.
After a short delay, all lights on the display will not be illuminated.
2-8 M370046-01
Step 5: Performing Functional Tests
Voltage and Current Mode Operation Checks
To perform the voltage and current mode operation checks:
1. Ensure that the front panel power switch is in the On position and the output is disconnected.
2. If the OUTPUT ENABLE Main button is illuminated, press the button to turn off the output.
3. To check voltage mode operation, turn the 9-position mode control to the VOLTS position.
The voltage set point will blink dimming and then return to full
brightness. For more information, see “Local Operation” on page 3–1.
4. Adjust the voltage to 5 V.
5. To check current mode operation, turn the 9-position mode control to
AMPS position.
Verify that the current set point is blinking in the output current display.
6. Adjust the current to 1 A.
7. Press the OUTPUT ENABLE Main button to turn On.
8. Turn the front panel power switch to the Off position.
9. Turn the front panel power switch to the On position.
10. Connect a short circuit across the output terminals. Use leads of
sufficient current carrying capacity. (See “Step 4: Selecting Load
11. Press the OUTPUT ENABLE Main button to enable the output. The button will be illuminated when the output is enabled.
CC Mode LED illuminates and the voltage and current are displayed.
CV Mode LED illuminates and the preset load current is displayed.
12. Turn the front panel power switch to the Off position.
2
M370046-01 2-9
Installation
Step 6: Connecting Loads
This section describes how to connect loads to the power supply for both single and multiple loads.
WARNING: Shock hazard
There is a shock hazard at the power supply output when operating at an output greater than 40 V. To protect personnel against accidental contact with hazardous voltages, ensure that the load and its connections have no accessible live parts.
CAUTION: Cable damage
When making connections to the output terminals, ensure terminals of opposite polarity do not touch. Load cables and sense wires should be provided with strain relief.
DC Output Connectors
WARNING: Shock hazard
Disconnect the AC input before making any connections. A shock hazard may be present at the output terminals. Allow 15 seconds after the AC power has been removed before making any connections.
6 V–40 V Models
The 6 V–40 V models are equipped with output terminals, as shown in
60 V–150 V Models
The 60 V–150 V models are equipped with output connectors, as shown
in Figure 1-4. These models have output currents that may require users
to use wire diameters that would not fit into a single output connector, so there are two output connectors in parallel to increase the potential current carrying capacity of load wiring.
300 V–600 V Models
The 300 V–600 V models are equipped with output connectors, as shown
2-10 M370046-01
Step 6: Connecting Loads
Inductive Loads and Batteries
Selecting
Diodes
CAUTION
The XTR power supply requires freewheeling and blocking diodes across the output while driving inductive loads or batteries to protect the power supply from damage caused by power being fed back into the supply and from high voltage transients.
The diode must have a voltage rating at least 20% greater than the power supply's output voltage and have a current rating greater than or equal to the power supply's output rating. Connect the cathode to the positive output and the anode to the return.
Where positive load transients such as back EMF from a motor may ocAMPS, connect a Transient Voltage Suppressor (TVS) or a varistor across the output to protect the power supply. The breakdown voltage rating for the TVS or varistor must be approximately 10% higher than the rated supply output.
2
M370046-01
Figure 2-2 Diode Placement
For a detailed Application Note, please go to: www.programmablepower.com and click SUPPORT.
2-11
Installation
Connecting Single Loads
Figure 2-3 shows the recommended load connections for a single load
which is sensing its voltage locally. Local sense lines shown are the
of wire possible to ensure optimal performance.
You do not need remote sensing for basic operation of your power supply.
However, if you wish to correct any small drops in your load lines, then
– Local Sense
J1.1
J1.2
+ Output
Power Supply
– Output
+ Local Sense
J1.5
J1.6
+ Terminal
Load
– Terminal
Figure 2-3 Connecting Single Loads
Connecting Multiple Loads
The proper connection of distributed loads is an important aspect of power supply use. The common method of connection is a radial load connection. Power is connected to each load individually from a single pair of terminals designated as the positive and negative distribution terminals. This pair of terminals may be the power supply output terminals, the load terminals, or a distinct set of terminals especially established for distribution use. In this scheme, there are no ground loops and the effect of one load upon another is minimized.
2-12 M370046-01
Step 7: Connecting Remote Sensing
Step 7: Connecting Remote Sensing
WARNING: Shock hazard
There is a potential shock hazard at the sense connectors when using a power supply at an output greater than 40 V. Select wiring with a minimum insulation rating equivalent to the maximum output voltage of the power supply for use as local sense jumpers or for remote sense wires. Ensure that connections at the load end are shielded to prevent contact with hazardous voltages.
Remote sensing permits you to shift the regulation point of the power supply from the output terminals to the load or other distribution terminals.
Use shielded twisted pair wiring of 20 to 26 AWG for best noise performance. Make sure that the shielded twisted pair wiring insulation is rated higher than the maximum output voltage of the power supply. If possible, one end of the shield of the sense lines should be attached to the chassis ground of the power supply.
Pin J1.6 on APG connector -SNS
Pin J1.1 on APG connector
+SNS load output +
Output terminals on power supply output -
Chassis ground stud
Figure 2-4 Remote Sense Connection
To connect the remote sense wires:
1. Ensure that the front panel power switch is in the Off position.
2. Using a small flat blade screwdriver, remove the two sense jumpers from pins J1.1 and J1.2, and from pins J1.5 and J1.6 on the APG
Connector. See Figure 4-1, “APG Connector Terminals” on page 4–5.
M370046-01 2-13
2
Installation
3. Connect one end of the shield of the twisted pair wire to the chassis ground point on the power supply.
4. Connect the positive sense line (+SNS) from the positive regulation point as close as possible to the load terminals to pin J1.1.
5. Connect the negative sense line (–SNS) from the return of the load to pin J1-6.
To compensate for losses in power leads connected to the output, the power supply provides sense connections beside the output terminals.
With remote sense leads in place, the power supply regulates to the displayed voltage at the point where the sense lines are connected to the output leads. With the sense lines disconnected, the power supply regulates the voltage at the output terminals.
CAUTION: Equipment damage
Do not operate the power supply with sense lines connected to the load without also connecting the load power leads to the output terminals.
CAUTION: Reverse polarity
Avoid reversing positive (+) and negative (–) sense connections.
When using remote sense to compensate for load line losses, ensure that the positive sense line is connected to the positive load terminal and the negative sense line is connected to the negative load terminal. Do not reverse these connections or the power supply may be damaged.
Important: Long load leads with large capacitance at the load and remote sensing can cause voltage instability due to inductance of the load leads.
Measures to reduce inductance and/or capacitance (raising resonant frequency) or using local sense can be beneficial in stabilizing the system.
2-14 M370046-01
3
Local Operation
Chapter 3, Local Operation, provides the procedures for
local (front panel) operation such as:
• Configuring settings.
• Operating in constant voltage mode and constant current mode.
• Using the protection features.
• Using multiple power supplies.
Local Operation
Introduction
Once you have installed the power supply and connected both the AC
input power and the load (covered in “Installation” on page 2–1), the
power supply is ready for local operation. To turn the power supply on,
see “Powering the Power Supply On/Off” on page 2–8.
Configuring Settings from the Front Panel
Using the 9-Position Mode Control
The 9-position mode control is used with the rotary Adjust/Enter control
to configure settings in local operation. See Figure 1-2, “Front Panel
Display and Controls” on page 1–5 for location of the front panel
features.
Using the 9-position mode control, select one of nine modes: VOLTS,
AMPS, FLD, PRT, SAV, RCL, CAP, and VAP. See Figure 3-1 and Table
3-1 for detailed information on the nine modes.
Figure 3-1 9-Position Mode Control
Using the Rotary Adjust/Enter Control
The rotary Adjust/Enter control is used to change settings and set the value selected. The front panel displays information on the output voltage and output current displays. Each display has a maximum of four characters that are made up of 7 segments.
3-2 M370046-01
Configuring Settings from the Front Panel
Coarse and Fine Adjustment Modes
Coarse adjustment mode
Fine adjustment mode
The coarse and fine adjustment modes are used for setting the voltage and current set points, OVP and UVP settings.
When using local operation to set the current and voltage set points, use the coarse adjustment mode (default) followed by the fine adjustment mode (see next). The coarse adjustment mode quickly adjusts the settings in large increments to reach the desired value.
Pressing the rotary Adjust/Enter control to change the mode to fine adjustment mode, provides the ability to manipulate the last significant digit. Once the exact desired value for the setting has been selected, press the rotary Adjust/Enter control to commit the value to the unit.
Table 3-1 Select and Set from the Front Panel
9 Positions on the Mode
Control Knob
VOLTS (Voltage
Programming)
AMPS (Current
Programming)
FLD (Foldback)
PRT (Protection)
SAV (Save User Preset)
RCL (Recall User Preset)
Turning the rotary Adjust/Enter control lets you…
Select the voltage set point in coarse or fine adjustment modes. See
“Automatic Mode Crossover” on page 3–12.
Select the current set point in coarse or fine adjustment modes. See
“Constant Current Mode Operation” on page 3–12.
Select Foldback option: CC, CV or
none. See “Setting Foldback Mode” on page 3–23.
Select the OVP set point (see
Select the UVP set point (see
Select OTP temperature and
Select the user setting memory
location. See “Saving User Setting
Memory Locations” on page 3–35.
Select the user setting memory
Setting Memory Locations” on page 3–36.
Pressing the rotary Adjust/
Enter control lets you…
Set the value selected and cycle to the next setting.
Set the value selected and cycle to the next setting.
Set the value selected and cycle to the next setting.
Set the value selected and cycle to the next setting.
Save user setting memory values.
Load user setting memory values into the power supply.
M370046-01 3-3
3
Local Operation
Table 3-1 Select and Set from the Front Panel
9 Positions on the Mode
Control Knob
Turning the rotary Adjust/Enter control lets you…
CAP (Current Analog
Programming)
VAP (Voltage Analog
Programming)
Select the programming source and select the range.
Select the programming source and select the range.
PGM (Remote Programming) Select the remote interface to be used for control.
Pressing the rotary Adjust/
Enter control lets you…
Set the value selected and cycle to the next setting.
Set the value selected and cycle to the next setting.
Select interface and cycle to the next setting.
3-4 M370046-01
Navigating the Menu System
Navigating the Menu System
The menu system of the XTR follows a select and set model with the
exception of the VOLTS and AMPS modes. See “Setting VOLTS and
The general procedure for setting up the features in the select and set model is:
1. To select a mode, rotate the 9-position Mode control to the desired mode or press the rotary Adjust/Enter control once to activate the
current selection on the mode control knob. See Figure 3-3.
2. To select the feature or setting, rotate the rotary Adjust/Enter control to scroll through the different available settings of that mode.
The settings appear on the output current display.
3. Press the rotary Adjust/Enter control to select the feature or setting.
4. Set each value using the rotary Adjust/Enter control. When the value has been selected, press the rotary Adjust/Enter control to commit the updated value. Additional values may become available, depending on the setting that is being configured.
Setting VOLTS and AMPS Modes
The only exceptions to the select and set model are the VOLTS and
AMPS modes which do not allow the selection of tracking and select and set mode by turning the rotary Adjust/Enter control. In VOLTS and
AMPS modes, the default entry mode setting is automatically selected as either voltage or current tracking, respectively.
Voltage and current values can be set in tracking mode or select and set mode using the rotary Adjust/Enter control:
• Tracking mode—the new values take effect as the rotary Adjust/Enter control is rotated.
• Select and set mode—the new values do not take effect until the
3
M370046-01 3-5
Local Operation
To access the tracking mode for entering voltage and current:
1. Select the VOLTS or AMPS position on the 9-position mode control.
If the set point is blinking, the unit is in coarse tracking mode.
• When the VOLTS mode is selected, the voltage set point will blink in the output voltage display.
• When the AMPS mode is selected, the current set point will blink in the output current display.
2. Use the rotary Adjust/Enter control to adjust the set point.
The adjustments you make to the set point affect the opposing output value (voltage when in AMPS mode or current when in VOLTS mode), which will update in the non-blinking display.
3. Press the rotary Adjust/Enter control to enter fine adjust tracking mode.
The set point blinks faster when the unit is in fine adjust tracking mode.
4. Use the rotary Adjust/Enter control to fine tune the set point.
5. Once the set point has been selected, press the rotary Adjust/Enter control to exit tracking mode and return to normal display mode.
To access the select and set entry mode for the voltage and current set points:
1. Select VOLTS or AMPS position on the 9-position mode control.
2. Press the rotary Adjust/Enter control three times in succession to enter coarse Pre-Set Adjustment.
3. Press the rotary Adjust/Enter control one more time to enter fine Pre-
Set Adjustment.
4. Press the rotary Adjust/Enter control once again to set the value.
The units can also timeout (adjustable) to exit the menu. Once Pre-Set
Mode is entered crpc and fnpc will appear in the voltage display.
3-6 M370046-01
Navigating the Menu System
Normal Display Mode and Inactivity Timeout
Normal display mode appears on the output voltage and current displays when the configuration changes from the front panel have been completed or when the inactivity timeout occurs (default is 3 seconds). Normal display mode shows the output voltage and current values.
If a timeout occurs before the changes made to the value have been set, the changes will not be saved and you will have to re-enter the changes.
The inactivity timeout is variable from 1 to 20 seconds and can only be changed using the SCPI command.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel>]:FPANel[:TIMeout]
Important: Each user memory setting location stores the timeout so that beginning users and expert users don't have to use the same timeout
3
Figure 3-2 Front Panel
M370046-01 3-7
Local Operation
Figure 3-3 Front Panel Menu System
3-8 M370046-01
Display Messages on the Front Panel
Display Messages on the Front Panel
The front panel displays on the power supply will use text as shown in
Table 3-2 to indicate the status or mode.
Table 3-2 Front Panel Display Text
Display Text
F0LD
FAIL
FAn
FLA
FnpC
FnPU
AS
AvAS
CAPr
CLr
CC
CU
CrPC
CrPU
0
232
485
8888
|
AC
ADDr
ANPR
CUrr deLa done
Err
FLd
HBP5
6PIB
In
LAn
LE C
Text Description
Negative Polarity
RS 232
RS 485
All segments On, Power Up
Positive Polarity
Alternating Current
RS 485 Address
Analog Programming
Power On Autostart
Auxiliary Autostart
Current Analog Programming
Clear
Constant Current
Constant Voltage
Coarse Current Pre-set Mode
Coarse Voltage Pre-set Mode
Current
Fold Delay
Done
Error (debug)
Foldback
Fail
Fan
Flash
Fine Current Preset Mode
Fine Voltage Preset Mode
Foldback
Data rate (kbps)
GPIB Interface
Interlock
ENET Interface
Current APG Level
M370046-01 3-9
3
Local Operation
Table 3-2 Front Panel Display Text
Display Text
On
OUPC
POL
Pr0
PSU
R IS rCL rE
LE U
Loc
LOCL
OFF
OCP
O7P
OUP
OvPF rnIS
SAFE
SAUE
Sd
SLA
U IS
UN IS
USb
UUP
UvPF
UAPr
UOL
Text Description
Voltage APG Level
Lock
Local
Off
Over Current Protection
Over Temperature Protection
Over Voltage Protection
Over Voltage Protection fine adjustment
On
OVP Calibration
Polarity
Protection mode
Power Supply Unit
Isolated Resistive Analog Programming
Recall Preset
Remote Programming/Interface
Non-Isolated Resistive Analog Programming
Safe
Save Preset
Shutdown
Slave Remote Interface
Isolated Analog Voltage Programming
Non-Isolated Analog Voltage Programming
USB Interface
Under Voltage protection coarse adjustment
Under Voltage protection fine adjustment
Voltage Analog Programming
Voltage
A blinking numeric value is either a voltage or current set point in tracking mode. The display in which the set point appears, output voltage or output current display, indicates the type of set point, voltage or current.
3-10 M370046-01
Standard Operation
Standard Operation
The power supply can be controlled by two methods, either from the front panel or from any of the remote interfaces. Front panel control is referred to as local operation (default setting) while control via any of the remote interfaces is called remote operation. To set up the power supply for
remote operation, see Chapter 5, “Remote Operation”. Once the remote
connection has been established, the power supply can switch seamlessly between local operation and any digital interface (RS-232, RS-485,
GPIB, USB and Ethernet).
Local lockout is a feature that allows the front panel to be locked so that accidental button presses are ignored. This feature is often used to lock out the front panel while a user is controlling the power supply from a remote location.
The output of the power supply has two modes of operation: Constant
Voltage (CV) mode (see page 3–12) and Constant Current (CC) mode
(see page 3–12). Both of the operating modes are available regardless of
which control method (local or remote) is used.
Operating Modes
The output mode in which the power supply operates at any given time depends on the following factors:
• Output voltage set point V
SET
• Output current set point I
SET
• Impedance of the attached load R
L
The two output modes of operation are Constant Voltage (CV) mode (see
page 3–12) and Constant Current (CC) mode (see page 3–12).
Output enabled When the output is turned on, both the voltage and current rise as quickly as possible to try and reach the set points (V
SET and I
SET) that were configured prior to enabling the output. Initially the unit will operate in
CV mode, which is the default mode. As the voltage and current rise to meet the requirements of the load, the set point that is reached first (based on the R
L, either V
SET or I
SET
) will determine which mode the power supply will remain in. The operating mode is indicated by either the CC mode LED or the CV mode LED, one of which will illuminate on the front panel.
Output disabled The mode of operation is not determined until the output is enabled. The
CV and CC mode LEDs will not indicate the mode while the output is disabled.
M370046-01 3-11
3
Local Operation
Constant Voltage Mode Operation
If the output is enabled and the configured current set point is much higher than the requirements for the attached load, then the voltage will rise until it reaches the voltage set point. When the output voltage reaches the voltage set point, it stops rising. The unit will continue to operate in
CV mode. The load current will still vary to meet any changes in required load current draw resulting from a change in the attached load.
Constant Current Mode Operation
If the output is enabled, the voltage and current start to rise. At this time the unit is operating in CV mode (default operational mode). As the load current drawn reaches the value of the output current setting, the unit will switch to CC mode and not allow any additional current to be drawn above the value of I
SET
. The unit is now operating in CC mode. The voltage will still vary to meet any changes in required output voltage resulting from a change in the attached load.
Automatic Mode Crossover
Mode crossover occurs when the unit makes the switch between operating modes. Crossover can occur from CV to CC or vice versa, depending on
how the attached load resistance changes. Figure 3-4 shows the
relationships between the variables.
For example, if the unit was initially operating in CV mode with the output voltage at the voltage set point and the load current below the I
SET and the attached load resistance began to decrease, the current would rise to meet this change in the load. The load current will increase in proportion to the decrease in the load resistance until the load current drawn reaches the current set point. At this point further decreases in load resistance (increased load current requirements) will cause the unit to cross over into CC mode where the output voltage will vary with changing load resistance and the load current will remain at the I
SET value.
The reverse operating mode change can also occur if the load resistance is increased to the point that the required load current drops below the I
SET value. At that point the power supply would crossover to CV mode and the load current would be free to vary as the load resistance changed.
3-12 M370046-01
Standard Operation
Figure 3-4 Operating Modes
To set the voltage set point ( V
SET ):
1. Turn the 9-position mode control to the VOLTS position or press the rotary Adjust/Enter control if the 9-position mode control is already at the VOLTS position.
The voltage set point is blinking in the output voltage display. The output current will be displayed in the output current display.
2. Set the desired voltage value using the rotary Adjust/Enter control.
Important: If you can’t get the set point to the desired level, you may need to change the set points for OVP.
3. Press the rotary Adjust/Enter control to transition to Fine Adjust mode.
The set point will blink faster to indicate fine adjust tracking mode.
4. Set the desired voltage value using the rotary Adjust/Enter control.
5. Once the desired value has been set, press the rotary Adjust/Enter control to commit the setting.
M370046-01 3-13
3
Local Operation
Quick Tip
Remote operation uses these SCPI commands. See
Important: The control circuits have been designed to allow you to set the output voltage up to 105% over the model-rated maximum value. The power supply will operate within these extended ranges, but full performance to specification is not guaranteed.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:VOLTage[:LEVEl][:IMMediate]
[:AMPLitude]
Important: The maximum and minimum setting values of the output voltage are limited by the Over Voltage Protection and Under Voltage Protection settings.
To set the current set point ( I
SET
):
1. Turn the 9-position mode control to the AMPS position or press the rotary Adjust/Enter control if the 9-position mode control is already at the AMPS position.
The voltage set point is blinking in the output voltage display. The output current will be displayed in the output current display.
2. Set the desired current value using the rotary Adjust/Enter control.
3. Press the rotary Adjust/Enter control to transition to Fine Adjust mode.
The set point blinks faster to indicate fine adjust tracking mode.
4. Set the desired current value using the rotary Adjust/Enter control.
5. Once the desired value has been set, press the rotary Adjust/Enter control to commit the setting.
Important: The control circuits have been designed so that output current can be set up to 105% over the model-rated maximum values. The power supply will operate within these extended ranges, but full performance to specification is not guaranteed.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:CURRent[:LEVEl][:IMMediate]
[:AMPLitude]
3-14 M370046-01
Enabling the Output
Shipped Configuration (Local Operation)
The power supply is configured for local operation at the factory. See
Table 3-3 for a summary of this configuration. For more information on
default settings, see Table 3-9 on page 3–39.
Table 3-3 Shipped Configuration
Local Control Configuration
Use the front panel controls to adjust the output voltage and current set point settings.
The OVP set point is adjusted at the front panel to 105% above the maximum rated output voltage.
Additional References
See Chapter 3, “Local Operation” for front
panel operation. See Chapter 4, “Analog
Programming (APG) and Isolated Analog
Programming (ISOL)” for analog
programming procedures.
See “Using Over Voltage Protection
(OVP)” on page 3–25 for the adjustment
procedure.
Enabling the Output
Enabling the output on will also turn off the ALARM LED if the ALARM
LED has been latched on due to an alarm triggering and automatically
clearing. See “Alarms and Errors” on page 3–18.
To enable the output power:
◆ Press the OUTPUT ENABLE Main button on the front panel or enter the SCPI command.
The OUTPUT ENABLE Main button will illuminate.
To disable the output power:
◆ Press the OUTPUT ENABLE Main button when the OUTPUT
ENABLE Main button is illuminated.
The output will be disabled and the LEDs will not be illuminated.
Quick Tip Remote
Operation uses these commands.
Important: The main output will not turn on if the shutdown function is
activated. See “Using the External Shutdown Function” on page 3–30.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>][:POWer][:STATe]
3
M370046-01 3-15
Local Operation
Enabling the Auxiliary Output
To enable on the auxiliary output:
◆ Press the OUTPUT ENABLE Aux button on the front panel.
The OUTPUT ENABLE Aux button will illuminate.
Important: The auxiliary output will not be enabled if the external
AUX_ON_OFF signal line is being used to disable the auxiliary outputs.
See “AUX Output and Isolated Analog Programming (ISOL) Connector” on page 4–20.
To disable the auxiliary output:
◆ Press the OUTPUT ENABLE Aux button on the front panel again.
The OUTPUT ENABLE Aux button will not be illuminated.
If the auxiliary output is activated, +5 V on J3.9 (+AUX1) and +15 V on
J3.11 (AUX2) will be present with respect to Pin J3.2 or Pin J3.6
(COM_ISOLATED). (See also “AUX Output and Isolated Analog
Programming (ISOL) Connector” on page 4–20 for more details.)
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:AUXiliary[:STATe]
Output Auto Start Mode (Auto Restart)
The Auto Start mode establishes the state of the output of the power supply after recovery from a complete power cycle (all front panel LEDs are not illuminated).
If Auto Start mode is set to On, the power supply output will return to its previous value when the power supply is powered up again.
If Auto Start mode is set to Off, the power supply output will remain off after the power supply is powered up again.
To change the Auto Start mode:
1. Press and hold the OUTPUT ENABLE Main button for 1 second.
AS On or AS Off is displayed.
2. Switch the Auto Start mode.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>][:POWer][:STATe]:PowerON[:STATe]
3-16 M370046-01
Auxiliary Auto Start Mode
Auxiliary Auto Start Mode
The Auxiliary Auto Start mode determines the state of the auxiliary output after a complete power cycle (all front panel LEDS are not illuminated). With Auxiliary Auto Start mode turned to On, the auxiliary output will be activated after the power supply is powered up again.
To define the Auxiliary Auto Start mode:
1. Press and hold the OUTPUT ENABLE Aux button for 1 second.
AuAS On or AuAS Off is displayed.
2. To change to status to On or Off, press the OUTPUT ENABLE Aux button.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:AUXiliary:PowerON[:STATe]
3
M370046-01 3-17
Local Operation
Alarms and Errors
Several conditions can cause alarms in the XTR. Some conditions are:
• From user configurable features.
• Controlled in hardware and will trigger regardless of configuration.
All alarms, with the exception of the Fan alarm, will result in the output of the power supply being disabled. The Fan alarm does not affect the output.
When an alarm is triggered, the appropriate alarm message will begin blinking on the display and the Alarm LED will be illuminated.It is possible that more than one alarm will trigger at the same time. When this occurs, the alarm with the highest precedence will blink on the display.
Table 3-4 lists the precedence of alarms. If the alarm is cleared and the
event which caused the alarm has not been corrected, then the alarm may trigger again immediately. Fix the reason for the alarm before you clear it.
Table 3-4 Alarm Order of Precedence
Alarm Precedence Output
Latch
Maskable Display
AC Fail
Over Temperature Protection (OTP)
Fan
Interlock
Over Voltage Protection (OVP)
Over Current Protection (OCP)
Foldback
External Shutdown
Under Voltage Protection (UVP)
1 (Highest)
2
4
6
7
8
9
10
Yes
Yes
No
No
Always
Always
Yes
No
11 (Lowest) No
No
Yes
Yes
No
No
No
Yes
Yes
Yes
AC Fail
O7P Pro
FAn Pro
In Loc
OVP Pro
OCP pro
FLD Pro
SD POL
UUP Pro
FLA FAIL
Flash Checksum Failure
1 N/A N/A N/A
1.The Flash Checksum Failure alarms are an exception as they are a terminal alarm that can only occur during boot up. It can only be cleared by doing a soft reset (losing the configuration of the unit) or by power cycling the unit.
3-18 M370046-01
Alarms and Errors
Clearing Alarms
Clearing Triggered and Manual Alarms
To clear a triggered alarm, use one of the following methods:
• Turn the power supply Off and then On.
• Press and hold the rotary Adjust/Enter control for 3 seconds.
• Press the reset key combination (Flash Fail ONLY). See “Resetting the
To clear a manual alarm:
1. Press and hold the rotary Adjust/Enter control for 3 seconds.
The ALr CLr message will be displayed on the front panel for a few seconds.
Important: When an alarm is cleared by using this method, only the current highest precedence alarm is cleared. If another alarm has occurred, then this alarm will now become the highest precedence alarm and will begin blinking on the display.
2. Repeat the alarm clearing until you have cleared all alarms.
Clearing a Flash Failure Alarm
The Flash Failure alarm is the only exception for clearing alarms. Flash
To clear a triggered alarm, use one of the following methods:
• Turn the power supply Off and then On.
• Press and hold the rotary Adjust/Enter control for 3 seconds.
•
Press the reset key combination (Flash Fail ONLY). See “Resetting the Power Supply” on page 3–39.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:PROTection:CLEar
3
M370046-01 3-19
Local Operation
Clearing Automatic Alarms
Some alarms will clear automatically when the condition that caused the alarm is no longer present. When an alarm automatically clears, the output voltage and current displays will return to normal, but the ALARM
LED will remain illuminated to indicate that an alarm has occurred. If an automatic alarm is triggered, the normal alarm clearing procedure still applies.
To clear the ALARM LED after an automatic alarm has cleared, use one of the following methods:
• Send the SCPI Clear Alarm command.
• Press the OUTPUT ENABLE Main button to reenable the output.
The ALARM LED will no longer be illuminated.
For example, if one of the fans in the XTR was temporarily blocked, causing a Fan alarm, then the blockage was cleared and the fans restarted, the alarm would clear. The output voltage and current displays would be
in normal mode, but the ALARM LED would be illuminated. See “Front
Panel ALARM LED” on page 3–20 for information on other events that
affect the ALARM LED.
Alarms status is tracked in the SCPI status registers. For more details on
how and where the alarms are tracked, see “Standard SCPI Register
.
Front Panel ALARM LED
The Alarm LED will illuminate due to one or more of the following events occurring:
• OTP has been tripped.
• A fan has stopped.
• OVP has tripped.
• OCP has tripped.
• UVP has tripped
• Interlock is open circuit.
• AC power falls out of range.
• Foldback has tripped.
• Persistent storage checksum is wrong (Flash Fail alarm).
• Internal malfunction of power supply.
• Any alarm has tripped and been cleared automatically.
The alarm LED will remain illuminated until the alarm is manually
cleared (see “Clearing Triggered and Manual Alarms” on page 3–19) or
by turning the main output on if the alarm has automatically been cleared.
3-20 M370046-01
Alarms and Errors
Alarm Masking
It is possible to completely disable some alarms through the use of the alarm mask. If an alarm is masked then this masking will prevent it from registering in the SCPI conditions registers as well as not triggering the
being enabled. Clearing the bit position (0) of an alarm will result in the alarm being masked/disabled.
For Example:
If you wanted to enable the OTP, Foldback and UVP alarms you would take the OTP value of 2 and add it to the foldback value of 256 and the UVP value of 1024 to get a mask of 1282. This is the value you would send with the SCPI command.
Control of the alarm mask is only available using the SCPI command.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel>]:PROTection:MASK
The mask command takes a single parameter made up of the sum of the
values for the alarms that are to be masked. See Table 3-5 for the alarm
values associated with each maskable alarm.
Table 3-5 Alarm Mask Bit Positions
Alarm
Over Temperature Protection (OTP)
Fan
Foldback
External Shutdown
Under Voltage Protection (UVP)
Bit Position
1
3
8
9
10
Value
2
8
256
512
1024
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel>]:PROTection:MASK
3
M370046-01 3-21
Local Operation
Alarm Output Latching
When an alarm is triggered, the output will be disabled with the exception of the Fan alarm. When an alarm is cleared, the alarm output latch determines if the output should be re-enabled to the state before the alarm occurred or if the output should remain in the off state.
Where setting the bit position (1) of an alarm latch will result in output latching to the off state when the alarm is cleared and if cleared (0) output will be re-enabled to the state before the alarm triggered.
To define the values for the bit position you determine which alarms you
want to latch. Read the value for this bit position from Table 3-6 and sum
them together. The result is the alarm last mask. Which you should send with the SCPI command.
For Example:
If you wanted to enable latching for OTP and Foldback you would take the OTP value of 2 and add it to the foldback value of 256 to get a mask of 258. This is the value you would send with the SCPI command.
The output latches are accessible through the SCPI command.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel>]:PROTection:LATCh
The latch command take a single decimal parameter made up of the sum of the values for the alarms to determine if they are to be latched in the off
state on clearing. See Table 3-6 for the values associated with each
latchable alarm.
Table 3-6 Alarm Latch Bit Positions
Alarm
AC Fail
Over Temperature Protection (OTP)
Foldback
0
1
8
Bit
Position Value
1
2
256
3-22 M370046-01
Setting Foldback Mode
Setting Foldback Mode
Foldback mode is used to disable the output when a transition is made between the operating modes. The power supply will turn off/disable the output and lock in foldback mode after a specified delay if the power supply transitions into CV mode or into CC mode, depending on the foldback mode settings. This feature is particularly useful for protecting current or voltage sensitive loads. Foldback can be set to trigger a switch when transitioning from CV to CC mode or from CC to CV mode.
To set the foldback protection and foldback delay time:
1. Turn the 9-position mode control to the FLD position or press the rotary Adjust/Enter control if the 9-position mode control is already at the FLD position.
2. Select the type of crossover that will cause foldback to trigger by using the rotary Adjust/Enter control.
If the mode selected is CC or CV mode, the foldback delay timer will start on a transition into the selected mode. If the mode selected is none, foldback is not enabled.
3. Press the rotary Adjust/Enter control when the desired mode has been selected.
The FLD LED will illuminate and DELA will be displayed in the output voltage display.
4. Adjust the desired delay time using the rotary Adjust/Enter control.
The range can be set from 0.50 seconds to a maximum of 50 seconds.
The step size is in increments of 0.05 seconds when setting from 0.50 to 5 seconds and then in 1 second increments from 5 seconds to 50 seconds.
5. Once the desired foldback delay time has been selected, press the rotary Adjust/Enter control to commit the foldback delay setting.
To disable foldback protection:
1. Turn the 9-position mode control to the FLD position or press the rotary Adjust/Enter control if the control knob is already at the FLD position.
2.
FLd is displayed on the output voltage display and the output current display shows the current foldback trigger mode.
3. Turn the rotary Adjust/Enter control until nonE is displayed in the output current display.
M370046-01 3-23
3
Local Operation
4. Press the rotary Adjust/Enter control to commit the setting once the desired value has been set.
5. The green FLD LED will turn off and the display will return to the normal display mode.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:PROTection:FOLDback[:MODE]
[:]OUTPut[<channel>]:PROTection:FOLDback:LATCh
Important: If you set foldback while the output is enabled and the trigger you select is the same as the current operating mode, the foldback timer will begin counting immediately after the delay time has been set.
Resetting Activated Foldback Protection
To reset activated and latched foldback protection, press and hold the rotary Adjust/Enter control for approximately 3 seconds.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:PROTection:CLEar
3-24 M370046-01
Using Over Voltage Protection (OVP)
Using Over Voltage Protection (OVP)
The OVP circuit protects the load in the event of an analog programming error, an incorrect voltage control adjustment, or a power supply failure.
The OVP circuit monitors the output voltage at the output of the power supply and will disable the output whenever a preset voltage set point is exceeded. You can set the preset voltage trip point by using the 9-position mode control on the front panel or via one of the remote programming interfaces.
To prevent accidental tripping of the OVP while setting up, the firmware will prevent the OVP set point from being less that 105% of the voltage set point when in local set point control mode. When the XTR is in VAP mode for defining voltage set point the set point limitation will be based on the VAP input signal level. The user should note it is possible to trip
OVP in this mode if the OVP is configured when the analog programming source is off.
When the user attempts to configure an OVP setpoint that is less than
105% of the voltage set point via the front panel the set point will stop allowing the value to decrement. If the user attempts to configure an OVP set point that is less than 105% of the voltage set point via SCPI a -221,
"settings conflict error" will be pushed onto the error queue.
3
M370046-01 3-25
Local Operation
Defining the OVP Set Point
To define the OVP set point:
1. Turn the power supply On.
Ensure the voltage is lower than the desired set point.
2. Set the output to the desired voltage.
OVP can be set without setting desired output voltage first.
3. Turn the 9-position mode control to the PRT position.
Pro OUP is displayed.
4. Press the rotary Adjust/Enter control.
5. Turn the rotary Adjust/Enter control to set the upper limit protection.
See “Coarse and Fine Adjustment Modes” on page 3–3.
Important: The OVP range is variable from V
SET
+5% to V
MAX
+25%.
6. Once the desired value has been set, press the rotary Adjust/Enter control to commit the setting.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:VOLTage:PROTection[:OVERvoltage]
[:LEVel]
If the output is between OVP set possible when in APG mode.
and –5%, an OVP warning message is
3-26 M370046-01
Using Under Voltage Protection (UVP)
Using Under Voltage Protection (UVP)
Important: UVP will not be active for voltage set points that are less than 1% of model voltage.
The UVP prevents voltage settings below a set value. The UVP lets you create a voltage window of operation when used in conjunction with the
OVP setting. The UVP range is variable from 0 V to OVP
SET
–10%.
The UVP is a protection that becomes active after the output is enabled and a period of time has passed to allow the output to reach its set point value before the UVP protection begins monitoring. As with OVP if the voltage set point is determined by analog control (VAP) and the voltage strays to within 5% of the UVP set point then UVP Safe will trigger to warn the user that they are about to trigger the UVP alarm.
The period of time before the UVP monitoring is active after the output is enabled is determined by the rise-time delay for the model as listed in
Table C-2, “Remote Operation” on page C–4 on the row called Up-prog
Response Time, 0 - Vmax. Since the rise time is based on a purely resistive load the user should be aware that UVP triggering might be possible in capacitive or rectifier loads due to the rise time being longer.
In these cases it is recommended that the user mask the UVP alarm until the rise time has elapsed and then unmask the alarm to allow UVP protection to be enabled during operation.
3
M370046-01 3-27
Local Operation
Defining the UVP Set Point
To define the UVP set point:
1. Turn the power supply On.
2. Set the output to the desired voltage.
3. Turn the 9-position mode control to the PRT position.
PRo OUP is displayed.
4. Turn the rotary Adjust/Enter control until PRo UUP is displayed.
5. Press the rotary Adjust/Enter control to select the UVP for setting up.
6. Set up the lower limit protection using the rotary Adjust/Enter control.
Important: The UVP range is variable from 0 volts to OVP
SET
–10%.
7. Once the desired value has been set, press the rotary Adjust/Enter control to commit the setting.
See “Coarse and Fine Adjustment Modes” on page 3–3.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:VOLTage:PROTection:UNDer[:LEVel]
Over Current Protection (OCP)
The OCP alarm is a firmware alarm that is only configurable using the
SCPI interface. The OCP triggers if the output current exceeds the OCP set point. Because the OCP alarm is a firmware based alarm it has a latency before detection of the condition can occur. The user should be aware of this latency and take this into consideration when relying on
OCP to protect a sensitive load. The maximum period for detecting an
OCP condition is 300 ms.
OCP is fixed at 110% of rated current.
3-28 M370046-01
Using Over Temperature Protection Lock (OTP)
Using Over Temperature Protection Lock (OTP)
The OTP lock protects the power supply in the event of an over temperature alarm. This alarm could be caused by ventilation restriction or overheating due to fan failure.
Two modes are available:
• Auto recovery (OTP OFF) where the power supply turns on again after cooling down.
• Latch mode (OTP ON) where you will need to reset the unit by turning the front panel power switch to Off and then On again.
If the OTP is activated, the main output will turn off and PRO O7P (over temperature protection) will blink on the display. The OTP alarm is an alarm that will auto recover when the temperature falls back into normal bounds.
Defining the OTP Mode
To define the OTP lock:
1. Turn the 9-position mode control to the PRT position.
PrO OUP is displayed.
2. Turn the rotary Adjust/Enter control until PRO O7P is displayed.
3. Press the rotary Adjust/Enter control to display O7P ON or OFF .
4. Turn the rotary Adjust/Enter control to change to On or Off.
5. Press the rotary Adjust/Enter control.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel(s)>]:PROTection:LATCh
Resetting in Latch Mode
To reset the power supply if the OTP alarm is tripped and the OTP mode is set to On (latching enabled), press and hold the rotary Adjust/Enter control for approximately 3 seconds.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel(s)>]:PROTection:CLEar
[:]SYSTem[<channel(s)>]:PROTection:LATCh
3
M370046-01 3-29
Local Operation
Using the External Shutdown Function
Use the external shutdown function to enable or disable the output of the power supply via a logic level signal. When the external shutdown is triggered, the power supply will display SD POL on the output voltage and current displays and the ALARM LED will illuminate. The external shutdown is useful for making adjustments to either the load or the power supply without shutting off the power supply or for using the power supply as part of a larger test system in which digital or analog control is required.
Activating the External Shutdown Function
To activate the external shutdown function, use the AUX output supply provided on the Analog Programming Connector J3. This input has a user selectable polarity with logic low input from 0.0V to 1.2V and logic high from 2.0V to 15V. The control signal for this input must be capable of sinking 10mA minimum. This input is also compatible with the use of dry contacts, where a short is logic low and an open is logic high. The input
lines of the shutdown circuit are fully optically isolated. See page C–4 for
specifications.
Once the External Shutdown has been triggered, the display will blink the
SD POL and the ALARM LED will be illuminated.
Controlling the External Shutdown Function
The external shutdown circuit accepts a voltage or dry contact control
(high or low logic level) to enable or disable the power supply output.
Make connections for the signals at the AUX Output and Isolated Analog
Programming Connector on the rear panel. (See “AUX Output and
Isolated Analog Programming (ISOL) Connector” on page 4–20 for more
information.)
To activate the shutdown function:
Connect the control signal source to the Shutdown pin (J3.12) on the Aux
Output and Isolated Analog Programming Connector with the control circuit ground connected to Isolated Ground pin (J3.6).
The External Shutdown pin is pulled high internally (normally high).
Therefore, if this feature is not used, the polarity should be set to 1 to
avoid false triggering. (See “Defining the Polarity of the External
Shutdown Signal” on page 3–31 for instructions.)
3-30 M370046-01
Using the External Shutdown Function
Defining the Polarity of the External Shutdown Signal
1. Turn the 9-position mode control to the PRT position or press the rotary Adjust/Enter control if the control knob is already at the PRT position.
PrO OUP is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control until PrO SD is displayed.
3. Press the rotary Adjust/Enter control to display SD 0 (shutdown on logic 0) or SD1 (shutdown on logic 1).
4. Press the rotary Adjust/Enter control to commit the desired polarity setting.
For example: If you set the shutdown logic to 1 ( SD1 ) and apply a logic high (greater than 1.2 Vdc) to pin J3.12 relative to pin J3.6 on the ISOL connector, the power supply will shut down. Conversely, if you set the shutdown logic to 0 ( SD0 ), the power supply will only operate when you have a logic high (greater than 1.2 Vdc) to pin J3.2 relative to pin J3.6.
Important: There is an internal pullup resistor inside the shutdown circuit so the shutdown polarity should be set to 0 if it is not being used.
The SCPI command (s) for these instructions are:
[:]OUTPut[<channel>]:POLarity
3
M370046-01 3-31
Local Operation
Interlock Function
The Interlock function can be used to wire an external shutoff switch that can be used to enable or disable the power supply output. When the switch is closed the power supply will operate normally. If the switch is opened, the power supply will trigger the interlock alarm. The output will be disabled, the display will blink In Loc , and the ALARM LED will illuminate. This alarm will automatically clear when the switch closes again and the output will automatically be restored to its pre-alarm state
(either enabled or disabled). The interlock function can be enabled or disabled using a SCPI command. Common applications include an emergency shutoff switch or a door switch.
Connect the switch between pins J3.14 and J3.15 on the AUX Output and
Isolated Analog Programming Connector.
Defining the Interlock Mode
The Interlock mode is controlled via SCPI commands. There is no front panel access for enabling or disabling the Interlock functionality. See
“Interlock Enable/Disable” on page 5–68.
The SCPI command for setting the Interlock mode to On and Off is:
[:]SENSe[<channel>]:PROTection:INTerlock[:STATe]
3-32 M370046-01
Hardware Malfunction Alarms
Power On Status Signal
Power On Status signal indicates a fault condition in the power supply.
Power On Status signal is a TTL output signal at Pin J2.13 with reference to COM_ISOLATED (Pin J2.2 or Pin J2.6).
During normal operation, the Power On Status signal will be high. If the output is disabled for any reason, the Power On Status signal will go low.
The following conditions will set the Power On Status to a low level:
• AC fail
• Over Voltage protection (OVP)
• Under Voltage Protection (UVP)
• Over Current Protection (OCP)
• Over Temperature protection (OTP)
• Foldback protection
• Interlock
• Output Off
• Shutdown activated (rear panel shutdown).
• Internal hardware malfunction
• Fan failure
Hardware Malfunction Alarms
The power supply will turn off the output. An error message will be displayed in the event that:
• OVP trips
• Voltage deviation in CV mode reaches more than ±5% from the set level.
1
• Current deviation in CC mode reaches more than ±5% from the set level.
1
3
M370046-01
1.These two forms of hardware malfunction are only monitored in the corresponding APG mode.
3-33
Local Operation
Current Configuration Memory Settings
The power supply will save the unit settings at the time of power down.
These settings will be loaded when the power is restored to the unit or the
power supply is powered up again. Table 3-7 lists the settings that are
saved and recalled on a power cycle event.
Table 3-7 Power Cycle Saved/Recalled Settings
Voltage Setpoint
Current Setpoint
Over Voltage Protection (OVP)
Under Voltage Protection (UVP)
Over Temperature Protection (OTP)
Autostart OUTPUT ENABLE Main
Autostart OUTPUT ENABLE Aux
Foldback Mode
Foldback Delay
Shutdown Logic
Voltage Analog Programming (VAP) Mode
Voltage Analog Programming (VAP) Level
Current Analog Programming (CAP) Mode
Current Analog Programming (CAP) Level
Remote Programming Interface
Local Lock
PSU (Power Supply) Address
Data Rate (BPS)
Alarm Latches
Front Panel Timeout
3-34 M370046-01
User Setting Memory Locations
User Setting Memory Locations
There are three user setting memory locations available for storing frequently used configurations. These user setting memory locations help to facilitate multiple users of an XTR power supply who have different setups or when multiple loads are used that have different requirements.
Table 3-8 lists the values that are stored in each user setting memory
location.
Table 3-8 User Accessible Saved/Recalled Settings
Voltage Setpoint
Current Setpoint
Over Voltage Protection (OVP)
Over Temperature Protection (OTP)
Autostart OUTPUT ENABLE Main
Autostart OUTPUT ENABLE Aux
Foldback Mode
Foldback Delay
Shutdown Logic
Voltage Analog Programming (VAP) Mode
Voltage Analog Programming (VAP) Level
Current Analog Programming (CAP) Mode
Current Analog Programming (CAP) Level
Alarm Latches
Front Panel Timeout
Saving User Setting Memory Locations
To save user setting memory locations:
1. Turn the 9-position mode control to the SAV position.
SAUE is displayed on the output voltage display with a number indicating a preset position which is displayed on the output current display.
2. Turn the rotary Adjust/Enter control to select a preset position from 1 to 3.
3. Press the rotary Adjust/Enter control.
SAuE done is displayed on the output voltage display.
M370046-01 3-35
3
Local Operation
4. The setting has now been saved to the selected user setting memory location.
The SCPI command (s) for these instructions are:
*SAV or
[:]SYSTem[<channel>]:SAVE
Recalling User Setting Memory Locations
This feature recalls settings that were previously saved.
To load user setting memory locations:
1. Turn the 9-position mode control to the RCL position.
RCL is displayed on the output voltage display with a number indicating a preset position on the output current display.
2. Turn the rotary Adjust/Enter control to select a preset position from 1 to 3.
3. Press the rotary Adjust/Enter control.
rCL done is displayed on the output voltage display.
The settings in the selected user setting memory locations have now been applied to the power supply.
The SCPI command (s) for these instructions are:
*RCL or
[:]SYSTem[<channel>]:RECall
Three user setting memory locations are available and one user setting memory location is saved automatically before AC power shutdown. This user setting memory location will be loaded after AC power is restored.
3-36 M370046-01
Local Lockout
Local Lockout
Local lockout is a feature that allows the front panel to be locked so that accidental button presses are ignored. This feature is often used to lockout the front panel when you are controlling the power supply from a remote location. When in local lockout mode, the front panel will display LOCL
Loc whenever a button is pressed or a knob is turned.
Enabling Local Lockout
To enable local lockout:
1. Turn the 9-position mode control to the PGM position or press the rotary Adjust/Enter control if the control knob is already at the PGM position.
The display will show rE in the output voltage display and the selected remote interface in the output current display.
2. Turn the rotary Adjust/Enter control until the display shows LOCL
Loc .
3. Press the rotary Adjust/Enter control.
4. Turn the rotary Adjust/Enter control until the display shows LOCL On .
5. Press the rotary Adjust/Enter control.
Local lockout has been enabled.
The SCPI command (s) for these instructions are:
[:]SYSTem:REMote:STATe
Disabling Local Lockout
To disable local lockout:
1. Turn the 9-position mode control to the PGM position or press the rotary Adjust/Enter control if the control knob is already at the PGM position.
The display will show rE in the output voltage display and the selected remote interface in the output current display.
2. Turn the rotary Adjust/Enter control until the display shows LOCL
Off .
3. Press the rotary Adjust/Enter control.
Local lockout has been disabled.
3
M370046-01 3-37
Local Operation
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel(s)>]:REMote:STATe
3-38 M370046-01
Resetting the Power Supply
Resetting the Power Supply
Soft Reset
The reset is used to clear the parameters to the factory default values.
The soft reset is used to set the parameters (see Table 3-9) to the default
values, but it does not reset the calibration constants
To perform a soft reset:
1. Turn the power supply to Off then On.
When the unit is powering on, 8888 8888 is displayed on the output voltage and current displays.
2. Press the key combination of both OUTPUT ENABLE Main button and OUTPUT ENABLE Aux button and hold continuously for 3 seconds in order to execute.
If the flash fail alarm triggers, it is also possible to reset the power supply.
3. Once a reset has been triggered, the output voltage display shows P5U
CLr for 1 second.
The model number will be displayed for 1 second and then return to normal mode.
After executing a reset, the power supply’s settings are restored to the
default settings but retain the calibration data. Table 3-9 lists the default
settings.
Table 3-9 Power Supply Default Settings
Parameter
Address
Data rate (Kbps)
Communication mode
Vout setting
Iout setting
Output
AUX Out
Trigger
Ext. On/Off Polarity
Auto start mode
AUX Auto start mode
OVP
Setting
1
9.6
RS-232
0 V
0 A
Off
Off
Off
Negative
Off
Off
Maximum
3
M370046-01 3-39
Local Operation
Hard Reset
Table 3-9 Power Supply Default Settings
Parameter
UVP
Foldback trigger
Foldback delay
Current Share Mode
Alarm Output Latches
Alarms Mask
Interlock
Voltage Analog Programming
Voltage APG Scale
Current Analog Programming
Current APG Scale
Setting
0 V
None
0.5 s
MASTer
263 (0 × 107, all latches enabled)
2047 (0 × 7FF, all enabled)
Disabled
Off
10 V
Off
10 V
The hard reset performs the same functions as a soft reset, but will also clear all calibration constants. Do not perform a hard reset unless you are planning to re-calibrate all settings of your power supply.
To reset the power supply:
1. Turn the front panel power switch to the Off position.
2. Allow the unit to power down.
3. When the fans are off and the front panel displays are not illuminated, turn the power switch to the On position.
4. Press and hold the OUTPUT ENABLE Main and OUTPUT
ENABLE Aux buttons.
The front panel should display P5U S rS .
5. When the display reads P5u Clr , release the OUTPUT ENABLE
Main and OUTPUT ENABLE Aux buttons. After 1 second the model number will appear on the display for 1 second.
The power supply has been reset.
3-40 M370046-01
Using Multiple Power Supplies
Using Multiple Power Supplies
WARNING: Shock hazard
There is a shock hazard at the load when using a power supply at an output of greater than 40V or a combined output of greater than 40V. To protect personnel against accidental contact with hazardous voltages created by a series connection, ensure that the load, including connections, has no live parts which are accessible. Also ensure that the insulation rating of the load wiring and circuitry is greater than or equal to the maximum or combined output voltage of the power supply.
CAUTION: Equipment damage
Do not connect power supplies from different manufacturers in parallel or in series.
CAUTION: Equipment damage
The remote programming inputs are internally referenced to the power supply's negative output. Do not connect remote programming ground lines to the power supply's positive output.
You can operate power supplies of the same model with the outputs in series to obtain increased load voltage or with the outputs in parallel to obtain increased current, also called current sharing. Split supply operation gives you two positive outputs, or a positive and a negative
output. See Figure 3-5 on page 3–42. When using multiple supplies in
series or parallel, they will not meet the single unit specifications in this
Manual.
3
M370046-01 3-41
Local Operation
Power Supply
Power Supply
Figure 3-5 Split Supply Operation
V
Common
Load
V
3-42 M370046-01
Using Multiple Power Supplies
Configuring Multiple Supplies for Series Operation
A maximum of two power supplies of the same rating can be connected in series to increase the output voltage.
CAUTION: Equipment damage
When two power supplies are connected in series, they should be programmed to the same output voltage to prevent damage to the lower voltage supply at short circuit condition.
Connecting to the Load in Local Sensing Mode
Connect the negative (–) output terminal of one power supply to the
positive (+) output terminal of the next power supply. See Figure 3-6 for a
representation of series operation.
3
J1.2
+LS
J1.1
+S
J1.5
-LS
+
Power Supply
–
J1.6
-S
+
LOAD
–
J1.2
+LS
J1.1
+S
+
Power Supply
–
J1.5
-LS J1.6
-S
Figure 3-6 Series Operation
M370046-01 3-43
Local Operation
Connecting to the Load in Remote Sensing Mode
Connect the negative (–) output terminal of one power supply to the positive (+) output terminal of the next power supply. The more positive supply’s positive sense line should connect to the positive terminal of the load (or distribution point). Its return sense line should connect to the connection between the two units at the same spot as the negative supply’s positive sense line. The return sense line of the negative supply should be
connected to the return of the load. See Figure 3-7.
CAUTION: Equipment damage
Do not connect sense lines through relays.
3-44
Figure 3-7 Load Connections in Remote Sensing Mode
M370046-01
Using Multiple Power Supplies
Configuring Multiple Supplies for Current Sharing Operation (APG
Method)
Up to four power supplies can be connected in parallel to increase the output current. One of the units will operate as the master unit and the remaining units will operate as slave units controlled by the master unit.
The master unit uses the analog programming lines to set the output voltages and currents of the slave units to match its output.
In remote digital operation, only the master unit can be programmed remotely while the slave units that are connected remotely will only provide voltage, current and status readback information.
In APG current sharing topologies, only the master unit can be programmed using any of the input methods (front panel, remote digital, or analog programming control). The slave unit(s) voltage and current output(s) are determined by the master unit through the REF_I input to each slave unit. The readback using any of the monitoring methods (front panel display, user monitor lines or SCPI measure commands) of each unit (master or slave) will provide individual unit status, not system status.
Setting up the Master Unit
Set the output voltage of the master unit to the desired voltage. Program the current set point of the master unit to the desired load current set point divided by the number of parallel units. During operation, the master unit operates in Constant Voltage mode, regulating the load voltage at the programmed output voltage. Send the Current share command.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:COMBine:CSHare[:MODE]
Setting up the Slave Units
The output voltage and current of the slave units should be programmed to maximum value. During parallel operation, the slave units operate as a controlled current source following the master unit’s output current.
All slave units must be configured with the SCPI command to enable current sharing.
The SCPI command (s) for these instructions are:
[[:]SOURce[<channel>]]:COMBine:CSHare[:MODE]
3
M370046-01 3-45
Local Operation
Important: The slave unit discussed here is not the same as the remote interface slave described in chapter 5.
Setting Over Voltage Protection (OVP)
The master unit’s OVP should be programmed to the desired OVP level.
The OVP of the slave units should be programmed to a higher value than the master OVP. When the master unit shuts down, it will program the outputs of the slave units to zero volts. If a slave unit shuts down, only that unit would shut down and the remaining slave units would supply all the load current if possible.
Setting Foldback Protection
Foldback protection is only available on the master units as the slaves operate in constant current mode. They should never crossover into constant voltage mode. If foldback is triggered on the master unit, when its output shuts down, it will program the slave unit’s output to zero volts.
3-46 M370046-01
Using Multiple Power Supplies
Connecting to the Load in Local Sensing Mode (Parallel Control
Method)
Connect the power supplies in parallel to obtain a single output supply with a higher output current set point. Set all of the outputs to the same voltage before connecting the positive (+) and negative (–) terminals in parallel. The total current available is the sum of the maximum currents of each power supply.
3
Figure 3-8 Load Connections in Local Sensing Mode
M370046-01 3-47
Connecting to the Load in Remote Sensing Mode (Parallel Control
Method)
Figure 3-9 Load Connections in Remote Sensing Mode (Parallel Control Method)
3-48
4
Analog
Programming (APG) and Isolated Analog
Programming (ISOL)
Chapter 4, Analog Programming (APG) and Isolated
Analog Programming (ISOL), provides information and
procedures for analog and isolated analog programming of the power supply.
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Introduction
The rear panel connectors J1 and J3 provide an option to control and monitor the output of the power supply with analog signals. Connector J1 provides a non-isolated analog interface where all signals are referenced to the negative output terminal of the power supply. Connector J3 is an isolated interface and also provides an isolated auxiliary voltage output to aid analog programming.
Analog Programming (APG) of Output Voltage and Output Current
Analog programming allows control of the power supply’s output voltage, output current or both to be controlled from analog input sources.
As the programming source is varied within the configured analog programming range (2–10 volts/ k Ω max), the power supply’s output varies proportionally over its output range. For example, if you set the programming scale to 10 V voltage source and apply 5 V to the programming pins, the power supply will be programmed to 50% of the output capability for your power supply.
While analog programming mode is configured, you will not be able to make adjustments to the set points from the front panel or through the remote interfaces.
The front panel will display AnPr in the output current display when the
9-position mode control is turned to VOLTS or AMPS positions for the parameter(s) that are configured to be controlled by analog programming.
If an adjustment of a parameter controlled by APG is attempted using a
SCPI command, a “-221 Settings Conflict” error will be pushed onto the error queue.
Using analog programming requires that you make connections to the
Isolated Analog Programming Connector or Analog Programming
Connector on the rear panel of the power supply. Depending on your
model, see “Rear Panel Connectors” on page 1–6 or “” on page 1–7.
4-2 M370046-01
Introduction
Remote Programming Options
Analog Monitor Signals
There are four monitor lines for analog programming the pin name and
the related APG mode, which are listed in Table 4-1. All of these lines are
provided to give analog feedback. The output from these monitor lines is a value scaled to the Analog Programming level set for the corresponding analog programming type. For example, the voltage monitor and isolated voltage monitor lines are both scaled to the analog programming level that is set in the VAP mode.
Table 4-1 Monitor Lines
Related APG Mode Reference Line
Name
Non-Isolated Voltage Analog Programming VOL_MON
Isolated Voltage Analog Programming IS_MON_VOL
Non-Isolated Current Analog Programming CUR_MON
Isolated Current Analog Programming IS_MON_CUR
Connector
J1.13
J3.5
J1.14
J3.10
Important: Analog control monitor lines will reflect the output of the power supply even when the unit is not set to operate in analog programming mode.
Important: Isolated monitor lines are only valid when isolated analog programming modes are used for the respective voltage and current control. If local (front panel) control is used or non-isolated APG is used, these values will be inaccurate and should not be used for monitoring. Conversely, if isolated APG is used, the non-isolated monitor lines will be inaccurate.
4
M370046-01 4-3
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Auxiliary Outputs
The auxiliary outputs are an additional isolated source. The auxiliary output has two outputs: +5 V output on J3.9 and a +15 V output on J3.11.
The auxiliary output operates independently of the main output. It is enabled or disabled from the front panel by pressing the OUTPUT
ENABLE Aux button. When the Aux output is enabled, the OUTPUT
ENABLE Aux button is illuminated. Like the main output of the power
supply, the Aux also has the ability to Autostart at power up. See “Output
Auto Start Mode (Auto Restart)” on page 3–16 and “Auxiliary Auto Start
Mode” on page 3–17 for details on controlling this feature.
Table 4-2 provides a summary of the options available for programming
output voltage and current set point using an analog source.
Table 4-2 Remote Programming Options
Control of… Programming Scale
1
Output voltage 2–10 V Voltage source (adjustable)
Current set point 2–10 V Voltage source (adjustable)
Output voltage 2–10 k Ω Resistive source (adjustable)
Current set point 2–10 k Ω Resistive source (adjustable)
1.The resolution can be adjusted in increments of 0.1 volts.
For more info…
4-4 M370046-01
Introduction
Analog Programming (APG) Connector J1
The APG connector is an 18-pin connector. See Figure 4-1.
The APG connector provides access to the following functions:
• Sense control
• Analog programming and monitoring.
Jumper Jumper
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
+SNS
+LS
-LS
-SNS
COM
VOL_PR
CUR_PR
Figure 4-1 APG Connector Terminals
Table 4-3 APG Pins and Functions J1
Pin Reference Function
J1.1
+SNS Positive (+)
J1.2
+LS Positive (+)
Sense
Local Sense
}
Jumper. Factory default condition.
J1.3
–NC
J1.4
–NC
J1.5
–LS Negative (–)
J1.6
–SNS Negative (–)
Local Sense } Jumper. Factory default condition.
Sense
J1.7
COM Analog Common Same as power supply negative sense (–SNS)
J1.8
COM Analog Common Same as power supply negative sense (–SNS)
REF_I
CSH
EXT_CC_CV
CUR_MON
VOL_MON
CUR_RES_PR
VOL_RES_PR
M370046-01 4-5
4
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Table 4-3 APG Pins and Functions J1
Pin
J1.14
J1.15
J1.16
J1.17
Reference
J1.9
VOL_PR
J1.10
CUR_PR
J1.11
VOL_RES_PR
J1.12
CUR_RES_PR
J1.13
VOL_MON
CUR_MON
1
1
EXT_CC_CV
CSH
REF_I
Function
Analog Voltage Programming Input
Analog Current Programming Input
Voltage Resistive Programming Input
Current Resistive Programming Input
Voltage Monitor. The scale of this output is set by the APG voltage input range selected (see Important note below).
Current Monitor. The scale of this output is set by the APG current input range selected (see Important note below).
External CC/CV. Indicates the state of the operate mode. When in CV mode, logic high is output and when in CC mode, logic low is output. Logic is TTL/CMOS compatible.
Current Share. Used to hook up units for current sharing. Output from master unit. Slave units should be left open.
Current Reference Input. Slave input from current share output on the master unit.
J1.18
NC
1.Important: Non-isolated monitor lines are only valid in local control, digital remote and nonisolated analog programming modes for the respective voltage and current control. If isolated analog programming is used, the isolated monitor lines should be used as the non-isolated monitoring lines will not accurately reflect the output state of the power supply.
4-6 M370046-01
Introduction
Making Control Connections
CAUTION: Equipment damage
Before making connections from external circuits to the Analog Programming
Connector, turn the front panel power switch to Off and wait until the front panel displays are not illuminated.
CAUTION: Equipment damage
Program/monitor signal and return are internally connected to the power supply negative output (-S). Do not attempt to bias these away from that potential.
To connect the output wires to the APG and DC output connector:
1. Insert a 3/32 inch slot-head screwdriver into the orange-colored box
of the connector until the end of the spring is reached. See Figure 4-2.
2. Hold the connector open and insert the applicable output wire.
3. Remove the screwdriver.
4
Figure 4-2 Inserting Screwdriver into Spring Terminal Block
M370046-01
Figure 4-3 APG and DC Output Connector
4-7
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Wiring
WARNING: Shock hazard
There is a potential shock hazard at the output when using a power supply with a rated output greater than 60 V. Use load wiring with a minimum insulation rating equivalent to the maximum output voltage of the power supply. For example, select TEW, 105 °C, 600 V wiring for use with a 600 V, 1.4 A power supply.
For most connectors and jumpers, use any suitable wire such as 20 to
26 AWG stranded wire. For lowest noise performance, use shielded twisted pair wiring of 20 to 26 AWG of the shortest length possible.
Ground the shield to pin J1.7 (analog common) on the Analog
Programming Connector or to the chassis via one of the Analog
Programming Connector screws.
4-8 M370046-01
Analog Programming Mode
Analog Programming Mode
For more details about connections for your particular model, see “Rear
Panel Connectors” on page 1–6 or “” on page 1–7.
CAUTION: Equipment damage
The program/monitor signal and return are internally connected to the power supply’s negative output. Do not attempt to bias these away from that potential.
See “Making Control Connections” on page 4–7.
Analog Programming With External Voltage Source
The pin numbers are described in Table 4-3 on page 4–5.
J1.9
J1.7
Figure 4-4 Programming Output Voltage using an External Voltage
Source
J1.10
J1.7
M370046-01
Figure 4-5 Programming Output Current using an External Voltage
Source
4-9
4
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Voltage-Controlled Voltage APG Setup
Activating APG Voltage Mode
To activate APG voltage mode using an external voltage source:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
UAPr is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select Un1S (voltage source from non-isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE U is displayed on the output voltage display.
4. Once the desired level has been selected, press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
Deactivating APG Voltage Mode
To deactivate the APG voltage mode:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
2.
UAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4-10 M370046-01
Analog Programming Mode
Query for Analog Voltage Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for analog voltage input level from non-isolated input:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
UAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other APG mode. If this step is done, be sure to restore the APG setting to nonE when the operation is complete. Otherwise, do not rotate the rotary Adjust/Enter control to keep the current APG mode.
3. Press the rotary Adjust/Enter control to select the APG mode.
The output voltage display should read LE U and the output current display will display APG level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the APG mode was modified in step 2, execute the procedure to deactivate the APG voltage mode.
The SCPI commands for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage] <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel[:VOLTage]
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram[:VOLTage][:DC]?
4
M370046-01 4-11
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Voltage-Controlled Current APG Setup
Activating APG Current Mode
To activate APG current mode using an external voltage source:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the mode control is already at the CAP position.
CAPr is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select source Un1S (Voltage source from non-isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE C is displayed on the output voltage display.
4. Select the input source level using the rotary Adjust/Enter control.
5. Once the desired level has been selected, press the rotary Adjust/
Enter control to commit the change.
The display will return to the normal display.
Deactivating APG Current Mode
To deactivate the APG current mode:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the mode control is already at the CAP position.
2.
CAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4-12 M370046-01
Analog Programming Mode
Query for Analog Current Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for analog current input level from non-isolated input:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the mode control is already at the CAP position.
CAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other APG mode. If this step is done, be sure to restore the APG setting to nonE when the operation is complete. Otherwise, do not rotate the rotary Adjust/
Enter control to keep the current APG mode.
3. Press the rotary Adjust/Enter control to select the APG mode.
The output voltage display should read LE C and the output current display will display APG level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the APG mode was modified in step 2, execute the procedure to deactivate the APG voltage mode.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce:CURRent <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel:CURRent
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram:CURRent[:DC]?
4
M370046-01 4-13
t
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Analog Programming With External Resistor
The pin numbers are described in Table 4-3 on page 4–5.
J1.9
J1.11
J1.7
Figure 4-6 Programming Output Voltage using an External Resistor
Figure 4-7 Programming Output Current using an External Resistor
4-14 M370046-01
Analog Programming Mode
Resistive-Controlled Voltage APG Setup
To activate APG voltage mode using an external resistor:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
UAPr is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select Rn1S (resistor source from non-isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE U is displayed on the output voltage display.
4. Select the input source level using the rotary Adjust/Enter control.
5. Once the desired level has been selected, press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
Deactivating APG Voltage Mode
To deactivate the APG voltage mode:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
2.
UAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4
M370046-01 4-15
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Query for Analog Voltage Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for analog voltage input level from non-isolated input:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the VAP position.
UAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other APG mode. If this step is done, be sure to restore the APG setting to nonE when the operation is complete. Otherwise, do not rotate the rotary Adjust/Enter control to keep the current APG mode.
3. Press the rotary Adjust/Enter control to select the APG mode.
The output voltage display should read LE U and the output current display will display APG level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the APG mode was modified in step 2, execute the procedure to deactivate the APG voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage] <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel[:VOLTage]
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram[:VOLTage][:DC]?
4-16 M370046-01
Analog Programming Mode
Resistive-Controlled Current APG Setup
To activate APG current mode using an external resistor source:
1. Turn the 9-position mode control to the CAP position to press the rotary Adjust/Enter control if the control knob is already at CAP position.
CAPr is displayed on the output voltage display.
2. Turn rotary Adjust/Enter control to select Rn1S (voltage source from non-isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE C is displayed on the output voltage display.
4. Once the desired level has been selected, press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
Deactivating APG Current Mode
To deactivate the APG current mode:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the mode control is already at the CAP position.
2.
CAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4
M370046-01 4-17
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Query for Analog Current Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for analog current input level from non-isolated input:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the mode control is already at the CAP position.
CAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other APG mode. If this step is done, be sure to restore the APG setting to nonE when the operation is complete. Otherwise, do not rotate the rotary Adjust/
Enter control to keep the current APG mode.
3. Press the rotary Adjust/Enter control to select the APG mode.
The output voltage display should read LE C and the output current display will display APG level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the APG mode was modified in step 2, execute the procedure to deactivate the APG voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce:CURRent <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel:CURRent
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram:CURRent[:DC]?
4-18 M370046-01
Analog Programming Mode
Voltage and Current Readback
The pin numbers are described in Table 4-3 on page 4–5.
Figure 4-8 Voltage Readback Using APG Connector J1
4
Figure 4-9 Current Readback Using APG Connector J1
M370046-01 4-19
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Isolated Analog Programming Mode (ISOL)
See “Rear Panel Connectors” on page 1–6 or “” on page 1–7 for more
details about connections.
AUX Output and Isolated Analog Programming (ISOL) Connector
The AUX Output and Isolated Analog Programming (ISOL) Connector is
a 15-pin female DSUB connector. See Figure 4-10. All pins on this
connector are electrically isolated from the output of the power supply.
The AUX Output and ISOL Connector provides access to the following functions:
• Auxiliary +5 V and +15 V outputs
• OUTPUT ENABLE Aux
• Power On Status (output)
• SD—Shutdown (input)
• Interlock
• ISOL programming and monitoring.
IS_VOL_PR_VOL
IS_VOL_PR_CUR
IS_MON_VOL
COM_ISOLATED
AUX1 & AUX2 On/Off
AUX1 (+5V)
IS_MON_CUR
ISO_CUR_RES_PR
COM_ISOLATED
ISO_VOL_RES_PR
INTER_LOCK 1
INTER_LOCK 2
MAIN PS_GOOD
Figure 4-10 AUX Output and ISOL Connector Pinout
AUX2 (+15V)
SD (Shutdown Main O/P)
4-20 M370046-01
Isolated Analog Programming Mode (ISOL)
Table 4-4 AUX Output and ISOL Connector Pins and Functions J3
PIn Reference Function
J3.1
J3.2
AUX_ON_OFF
COM_ISOLATED
J3.3
IS_VOL_PR_VOL
J3.4
IS_VOL_PR_CUR
J3.5
IS_MON_VOL 1
Auxiliary enable/disable
Isolated Common (Isolated from Main Output and Communication.
Return wire for +5 V, +15 V Auxiliary Voltage.
Isolated Analog Voltage Programming Input
Isolated Analog Current Programming Input
J3.6
COM_ISOLATED
IS_MON_CUR 1
Isolated Voltage Monitor. Scaled to the value of the Voltage Analog
Programming Level.
Isolated Common (Isolated from Main Output and Communication.
Return wire for control signals, monitoring and programming.
J3.7
ISO_CUR_RES_PR Isolated Current Resistive Programming
J3.8
ISO_VOL_RES_PR Isolated Voltage Resistive Programming
J3.9
+AUX 1 2 +5 V Isolated Output
J3.10
Isolated Current Monitor. Scaled to the value of the Voltage Analog
Programming Level.
J3.11
+AUX 2 2
J3.12
SD
J3.13
J3.14
J3.15
PS_GOOD
INTER_LOCK 1
INTER_LOCK 2
+15 V Isolated Output
Shutdown. Input to power supply to disable output. This input has user selectable negative logic operation via front panel or remote digital input/output.
PS_GOOD. Power supply output enabled.
Interlock. Dry contact type. Shorting pins J3.14 and J3.15 while the interlock functionality is enabled, will enable the output of the power supply.
Interlock
1.Important: Isolated monitor lines are only valid when Isolated analog programming modes are used for the respective voltage and current control. If local control, digital control or non-isolated APG is used, the non-isolated monitor lines should be used as the isolated monitor lines will not accurately reflect the output state of the power supply.
2.Use unshielded cable up to 9.84 feet (3 m) length with high-density D-Sub type connector and a ferrite bead (Fair-Rite part number 0443164251).
4
M370046-01 4-21
Analog Programming (APG) and Isolated Analog Programming (ISOL)
CAUTION: Equipment damage
Do not drive or apply a voltage to pins J3.14 (Inter_Lock 1) or to pins J3.15
(Inter_Lock 2).
4-22 M370046-01
Isolated Analog Programming Mode (ISOL)
Making ISOL Control Connections
CAUTION: Equipment damage
Before making connections from external circuits to the Isolated Analog
Programming Connector, turn the front panel power switch to off and wait until the front panel displays have gone out.
For most connectors and jumpers, use any suitable wire such as 22
AWG stranded wire. For lowest noise performance, use shielded twisted pair wiring of 22 AWG. Use the shortest leads possible. +5 V and +15 V
Auxiliary Output reference to pin 2 and 6 (isolated common) on the
ISOL Connector.
ISOL Programming With External Voltage Source
The pin numbers are described in Table 4-4 on page 4–21.
4
V
Figure 4-11 Programming Output Voltage using an Isolated External
Voltage Source
V
M370046-01
Figure 4-12 Programming Output Current using an Isolated External
Voltage Source
4-23
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Voltage-Controlled Voltage ISOL Setup
Activating ISOL Programming Voltage Mode
To activate ISOL programming voltage mode with an external voltage source:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the
VAP position.
WAPr is displayed on the output voltage display.
2. Turn rotary Adjust/Enter control to select U IS (voltage source from isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE U is displayed on the output voltage display.
4. Select the input source level using the rotary Adjust/Enter control.
5. Once the desired level has been selected, press the rotary Adjust/
Enter control to commit the change.
The display will return to the normal display.
Deactivating ISOL Voltage Mode
To deactivate the ISOL voltage mode:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the mode control is already at the
VAP position.
2.
UAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4-24 M370046-01
Isolated Analog Programming Mode (ISOL)
Query for ISOL Voltage Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for ISOL voltage input level from non-isolated input:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the control knob is already at the VAP position.
UAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other ISOL mode. If this step is done, be sure to restore the ISOL setting to nonE when the operation is complete. Otherwise, do not rotate the rotary
Adjust/Enter control to keep the current ISOL mode.
3. Press the rotary Adjust/Enter control to select the ISOL mode.
The output voltage display should read LE U and the output current display will display ISOL level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the ISOL mode was modified in step 2, execute the procedure to deactivate the ISOL voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage] <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
[:VOLTage][:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram[:VOLTage]
:ISOlated[:DC]?
4
M370046-01 4-25
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Voltage-Controlled Current ISOL Setup
Activating ISOL Programming Current Mode
1. Turn the 9-position mode control to the CAP position or press the rotary adjust/Enter control if the control knob is already at the CAP position.
CAPr is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select U IS (voltage source from isolated connector).
3. Press the rotary adjust/Enter control to commit the selected mode.
LE C is displayed on the output voltage display.
4. Select the input source level using the rotary adjust/Enter control.
5. Once the desired level has been selected, press the rotary adjust/
Enter control to commit the change.
The display will return to the normal display.
Deactivating ISOL Current Mode
To deactivate the ISOL current mode:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the control knob is already at the VAP position.
2.
CAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4-26 M370046-01
Isolated Analog Programming Mode (ISOL)
Query for ISOL Current Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for ISOL current input level from non-isolated input:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the control knob is already at the CAP position.
CAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other ISOL mode. If this step is done, be sure to restore the ISOL setting to nonE when the operation is complete. Otherwise, do not rotate the rotary
Adjust/Enter control to keep the current ISOL mode.
3. Press the rotary adjust/Enter control to select the ISOL mode.
The output voltage display should read LE C and the output current display will display ISOL level.
4. Press the rotary adjust/Enter control to return to normal mode.
5. If the ISOL mode was modified in step 2, execute the procedure to deactivate the ISOL voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce:CURRent: <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel:CURRent
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram:CURRent
:ISOlated[:DC]?
4
M370046-01 4-27
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Analog Programming With External Resistor
The pin numbers are described in Table 4-4 on page 4–21.
Figure 4-13 Programming Output Voltage using an Isolated External
Resistor
Figure 4-14 Programming Output Current using an Isolated External
Resistor
4-28 M370046-01
Isolated Analog Programming Mode (ISOL)
Resistive-Controlled Voltage ISOL Setup
Activating ISOL Programming Voltage Mode
To activate ISOL programming voltage mode using an external resistor:
1. Turn the 9-position mode control to the VAP position or press the rotary adjust/Enter control if the control knob is already at the VAP position.
UAPr is displayed on the output voltage display.
2. Turn the rotary Adjust/Enter control to select R IS (resistor source from isolated connector).
3. Press the rotary adjust/Enter control to commit the selected mode.
LE U is displayed on the output voltage display.
4. Select the input source level using the rotary adjust/Enter control.
5. Once the desired level has been selected, press the rotary Adjust/
Enter control to commit the change.
The display will return to the normal display.
Deactivating ISOL Voltage Mode
To deactivate the ISOL voltage mode:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the control knob is already at the VAP position.
2.
UAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary adjust/Enter control to commit the change.
The display will return to the normal display.
4
M370046-01 4-29
Query for ISOL Voltage Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for ISOL voltage input level from non-isolated input:
1. Turn the 9-position mode control to the VAP position or press the rotary Adjust/Enter control if the control knob is already at the VAP position.
UAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other ISOL mode. If this step is done, be sure to restore the ISOL setting to nonE when the operation is complete. Otherwise, do not rotate the rotary
Adjust/Enter control to keep the current ISOL mode.
3. Press the rotary adjust/Enter control to select the ISOL mode.
The output voltage display should read LE U and the output current display will display ISOL level.
4. Press the rotary adjust/Enter control to return to normal mode.
5. If the ISOL mode was modified in step 2, execute the procedure to deactivate the ISOL voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage] <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
[:VOLTage][:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram[:VOLTage]
:ISOlated[:DC]?
4-30
Isolated Analog Programming Mode (ISOL)
Resistive-Controlled Current ISOL Setup
Activating ISOL Resistive-Controlled Current Setup
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the control knob is already at the CAP position.
CAPr is displayed on the output voltage display.
2. Turn rotary Adjust/Enter control to select R IS (voltage source from isolated connector).
3. Press the rotary Adjust/Enter control to commit the selected mode.
LE C is displayed on the output voltage display.
4. Select the input source level using the rotary Adjust/Enter control.
5. Once the desired level has been selected, press the rotary Adjust/
Enter control to commit the change.
The display will return to the normal display.
Deactivating ISOL Current Mode
To deactivate the ISOL current mode:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the control knob is already at the CAP position.
2.
CAPr is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select nonE .
4. Press the rotary Adjust/Enter control to commit the change.
The display will return to the normal display.
4
M370046-01 4-31
Analog Programming (APG) and Isolated Analog Programming (ISOL)
Query for ISOL Current Input Level
Quick Tip
Remote operation uses these SCPI commands. See
To query for ISOL current input level from non-isolated input:
1. Turn the 9-position mode control to the CAP position or press the rotary Adjust/Enter control if the control knob is already at the CAP position.
CAPr is displayed on the output voltage display.
2. If the mode is currently nonE then select any other ISOL mode. If this step is done, be sure to restore the ISOL setting to nonE when the operation is complete. Otherwise, do not rotate the rotary
Adjust/Enter control to keep the current ISOL mode.
3. Press the rotary Adjust/Enter control to select the ISOL mode.
The output voltage display should read LE C and the output current display will display ISOL level.
4. Press the rotary Adjust/Enter control to return to normal mode.
5. If the ISOL mode was modified in step 2, execute the procedure to deactivate the ISOL voltage mode.
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce:CURRent <?|LOCal
|AVOLtage|IAVoltage|ARESistive|IAResistive>
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel:CURRent
[:ISOlated]
[:]MEASure[<channel>][:SCALar]:APRogram:CURRent
:ISOlated[:DC]?
4-32 M370046-01
Voltage and Current Readback (Isolated)
Voltage and Current Readback (Isolated)
The pin numbers are described in Table 4-4 on page 4–21.
V
Figure 4-15 Isolated Voltage Monitoring
4
V
Figure 4-16 Isolated Current Monitoring
Query Remote Control Source State
Quick Tip
Remote operation uses these SCPI commands. See
The SCPI command for these instructions are:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage]?
[:]SYSTem[<channel>]:REMote:SOURce:CURRent?
M370046-01 4-33
Analog Programming (APG) and Isolated Analog Programming (ISOL)
4-34 M370046-01
5
Remote Operation
Chapter 5, Remote Operation, describes the remote
operation of the XTR power supply via the communication ports.
Remote Operation
Introduction
In addition to the front panel interface, the XTR can be remotely controlled through the various remote interfaces. The XTR implements the SCPI standard as its command line interface for remotely controlling the power supply. Additionally, a small subset of legacy Xantrex commands has been provided for ease of use and backwards compatibility. All of the remote interfaces use the same command line interface.
This chapter is divided into two parts:
• Hardware and Connection Setup provides information on how to setup a connection to the different remote interfaces available on the
XTR. The remote interfaces covered include RS-232, RS-485, USB,
GPIB and ENET.
• Command Line Interface and SCPI explains how to send commands to the power supply using the SCPI commands and the theory behind
SCPI.
5-2 M370046-01
Hardware and Connection Setup
Hardware and Connection Setup
This section provides information on setting up the hardware and is organized into setup for each hardware type. Once the setup has been successfully completed, data can be sent to and responses received from the power supply. Select which hardware interface to use and follow the instructions and diagram for that hardware set up.
Configuring Remote Control Using RS-232
To configure remote control using RS-232:
1. Use the top J4 connector of the two 8-pin RJ-45 jacks, as shown in
, to connect to the RS-232 remote interface.
2. Connect from PC to power supply using a cable that meets the
cabling specifications listed in Table 5-1.
M370046-01
J4:
RS-232 and RS-485 connector in port
J6:
RS-232 and RS-485 connector out port
Figure 5-1 Remote Control Connectors
Table 5-1 Remote Control Connector Pins and Functions J4 and J6
1
Pin Reference
J4.1
RX-232
J4.2
TX-232
J4.3
RXD+
J4.4
RXD–
J4.5
TXD+
J4.6
TXD–
J4.7
GND
J4.8 NC
J6.9
NC
Direction
Input
Output
Input
Input
–
–
Output
Output
–
Function
RS-232
RS-232
RS-485 receiving
RS-485 receiving
RS-485 transmitting
RS-485 transmitting
Ground
–
–
5-3
5
Remote Operation
Table 5-1 Remote Control Connector Pins and Functions J4 and J6
1
Pin Reference
J6.10 NC
J6.11
RXD+
J6.12 RXD–
J6.13 TXD+
J6.14 TXD–
J6.15 GND
J6.16 NC
Direction
–
Input
Input
–
–
Output
Output
Function
–
RS-485 receiving
RS-485 receiving
RS-485 transmitting
RS-485 transmitting
Ground
–
1.All references and directions indicated in this table are with respect to the XTR.
RS-232 Communication Cable with RJ-45 to DB-9
Communication control cable with DB-9 connector (male) on the PC side and RJ-45 shielded connector on the power supply. The cable length should be 9.84 feet (3 m) or longer.
Table 5-2 DB-9 Pinouts
Pin
1
2
3
4
5
6, 7, 8, 9
Name
NC
RX
TX
NC
GND
NC
Description
No connection
Receive data
Transmit data
No connection
Ground
No connection
Twisted pair
Table 5-3 RJ-45 Pinouts
Pin
1
2
3, 4, 5, 6
7
8
Name
RX
TX
NC
GND
NC
Description
Receive data
Transmit data
No connection
Ground
No connection
Twisted pair
5-4 M370046-01
Hardware and Connection Setup
DB-9 Pinout
DB-9 connector on PC RJ-45 plug
Figure 5-2 RS-232 Communication Cable with DB-9 Pinout
RS-232 Communication Cable with RJ-45 to DB-25
Communication control cable with DB-25 pinout (male) on the PC side and RJ-45 shielded connector on the power supply. The cable length should be 9.84 feet (3 m) or longer.
Figure 5-3 DB-25 Pinout
Table 5-4 DB-25 Pinouts
Pin
1
2
3
4, 5, 6
7
8, 9
Name
NC
TX
RX
NC
GND
NC
Description
No connection
Transmit data
Receive data
No connection
Ground
No connection
Twisted pair
5
M370046-01 5-5
Remote Operation
DB-25 connector on PC RJ-45 plug
Figure 5-4 RS-232 Communication Cable with DB-25 Pinout
Completing the Setup
To complete the setup:
◆ Configure the XTR to use the 232 remote interface and set up the terminal that will be used on the connected PC.
See the sections entitled“Selecting the Appropriate Communication
Port” on page 5–20 and “Terminal Configuration” on page 5–17 for
more details.
5-6 M370046-01
Hardware and Connection Setup
Configuring Remote Control Using RS-485
RS-485 Communication Cable with RJ-45 to DB-9
Communication control cable with DB-9 pinout (female) on the PC side
(see Figure 5-2) and RJ-45 shielded connector on the power supply.
The cable length should be 9.84 feet (3 m) or longer.
Table 5-5 DB-9 Pinouts
Pin
4
5
1
2, 3
6, 7
8
9
Name
GND
NC
RXD+
RXD–
NC
TXD+
TXD–
Description
Ground
No connection
Receive data
Receive data
No connection
Transmit data
Transmit data
Twisted pair
Twisted pair
Table 5-6 RJ-45 Plug Pinouts
Pin
7
8
5
6
1, 2
3
4
Name
NC
TXD+
TXD–
RXD+
RXD–
GND
NC
Description
No connection
Transmit data
Transmit data
Receive data
Receive data
Ground
No connection
Twisted pair
Twisted pair
5
M370046-01
DB-9 connector on PC
RJ-45 plug
Figure 5-5 RS-485 Communication Cable with DB-9
5-7
Remote Operation
RS-485 Communication Cable with Two RJ-45s
Use the top connector of the two 8-pin RJ-45 jacks, as shown in
Figure 5-1, to connect to the RS-485 remote interface. Communication
cable with two RJ-45 shielded connectors (see Figure 5-3 ) connecting the master unit to the slave unit. The cable length should be 9.84 feet (3 m) or longer. The pinouts for the RJ-45 plug on the master unit are the same as described in Table 5-7.
Table 5-7 RJ-45 Plug on Slave Unit
Pin
7
8
5
6
1, 2
3
4
Name
NC
RXD+
RXD–
TXD+
TXD–
GND
NC
Description
No connection
Receive data
Receive data
Transmit data
Transmit data
Ground
No connection
Twisted pair
Twisted pair
Master unit (J6) Slave unit (J4)
Figure 5-6 RS-485 Communication Cable from Master to Slave Unit
Completing the Setup
To complete the setup:
◆ Configure the XTR to use the 485 remote interface and setup the terminal that will be used on the connected PC.
See sections entitled “Selecting the Appropriate Communication
Port” on page 5–20 and “Terminal Configuration” on page 5–17 for
more details.
5-8 M370046-01
Hardware and Connection Setup
Configuring Remote Control using the USB Connector
The power supply can be controlled from a remote terminal using a USB interface. The standard USB connector is located on the rear panel of the
XTR 850 Watt, as shown in Figure 1-3. Use a standard USB shielded cable up to 9.84 feet (3 m) in length.
Setting Up the PC to Use the USB Connection
Installing USB to Serial Converter and Serial Port
To set up the USB connection, you’ll need to download the latest driver from Future Technology Devices International Ltd. or from www.xantrex.com
.
To download and install a virtual COM port (VCP) driver:
1. Go to www.programmablepower.com
and navigate to the XTR product web page.
2. Click the download link to download the driver.
3. Download the appropriate virtual COM port (VCP) drivers for your operating system (with enhanced BM series support).
4. Create a folder C:\FTDI.
5. Unzip files from the archive into this folder.
6. Connect your device to a spare USB port on your computer.
The Found New Hardware Wizard automatically launches, as shown
5
M370046-01 5-9
Remote Operation
Figure 5-7 Found New Hardware Wizard
7. Click Next.
8. On the Install Hardware Device Driver screen, select “Search for a suitable driver for my device (recommended)” and click Next. See
5-10
Figure 5-8 Install Hardware Device Drivers
M370046-01
Hardware and Connection Setup
9. In the Locate Driver Files dialog box, in the field Optional Search
Locations, select Specify A Location and click Next.
10. On the next screen, enter the file path “C:\FTDI” and click OK.
11. On the next screen, select “Driver Files Search Results” and click
Next.
12. In Completing the Found New Hardware Wizard, see Figure 5-9,
click Finish to complete the installation.
Figure 5-9 Completing the New Hardware Wizard
This completes the first part of the installation during which the USB to serial converter is installed. The second part involves the installation of a serial port, which should follow automatically once the converter installation is complete. Installation of the serial port does not require any user intervention.
Verifying Installation
Once the installation of the serial port has completed, verify that the installation has been successful by looking under Device Manager of the
System Properties screen. The device should have installed as a USB
Serial Port (COMx) attached to USB High Speed Serial Converter.
5
M370046-01 5-11
Remote Operation
To verify that the device has been installed:
1. In Control Panel, go to System, click the Hardware tab and click on
Device Manager.
2. On the View menu, select Devices by Type.
3. To change the virtual COM port properties, select the USB Serial Port and then Click Properties.
This allows you to change serial port properties such as data rate
(bps) and data bits. You are also able to change the COM port which is assigned to your device.
4. Click the Port Settings tab, then click Advanced.
Figure 5-10 Device Manager
5-12 M370046-01
Hardware and Connection Setup
Figure 5-11 Communications Port (COM1) Properties
5. In the COM port list, scroll to the required COM port.
5
M370046-01
Figure 5-12 Completing the new hardware wizard
6. Click OK.
Ensure that you do not select a COM port which is already in use.
This selection is particularly useful for programs, such as
HyperTerminal, which only work with COM1 through to COM4.
5-13
Remote Operation
Complete the Setup
To complete the setup:
◆ Configure the XTR to use the USB remote interface and set up the terminal that will be used on the connected PC.
See “Selecting the Appropriate Communication Port” on page 5–20
and “Terminal Configuration” on page 5–17 for more details.
5-14 M370046-01
Hardware and Connection Setup
Ethernet (ENET) or GPIB Connector (Optional)
The power supply can be programmed from a remote terminal using a
General Purpose Interface Bus (GPIB interface) or Ethernet (ENET). If you have a GPIB or ENET card, see the XTR 850 Watt GPIB and
Ethernet Interface Option Operating Manual (Part number M370046-
06) .
The GPIB interface is an 8-bit parallel data bus having a host of bus commands for synchronization and up to one megabyte data transfer rate.
Use standard IEEE-486, 26 AWG GPIB cable up to 3 metres length.
For connecting the power supply to ENET, use a LAN RJ-45 and RJ-45
STP, Cat 5 cross-cable 9.84 feet (3 m) in length or longer. Use a standard
RJ-45 and RJ-45 cross-cable.
Multiple Power Supply Connections to RS-485 Bus
Up to 30 units may be connected to the RS-485 bus. The first unit (master unit) connects to the controller via any appropriate port, and the other units (slave units) are connected with the RS-485 bus via the J6 connector. All units connected together should also have unique multichannel addresses.
A standard straight-through RJ-45 ethernet network cable can be used to
provide the connection between the power supplies. See Figure 5-13.
5
Figure 5-13 Multi Power Supply Connection to RS-485 Bus
M370046-01 5-15
Remote Operation
Multiple Power Supply Setup
Master Setup:
◆ Configure the master XTR by selecting the communication interface you wish to use to communication with the Master and follow the setup instruction in this chapter.
Important: If either RS-232 or RS-485 are used for communication with the master, the data rate must be configured for 9600 bps to properly communicate with the slave units.
Slave Setup:
1. Turn the 9-position mode control to PGM.
rE is displayed in the output voltage display.
2. Turn the rotary Adjust/Enter control to select SLA and press the Enter button.
3. Set a unique address. See “Multichannel Address Setting” on page 5–
5-16 M370046-01
Terminal Configuration
Terminal Configuration
The terminal program allows serial communication with the power supply. To use a terminal program, set it up using the parameters from the following sections. If you wish to use HyperTerminal, see
“HyperTerminal” on page 5–17 for instructions setting it up.
Data Format
Serial data format is 8 bit, one stop bit. No parity bit. Flow control: none.
End of Message
The end of message is the Carriage Return character (ASCII 13,
0x0D).The power supply ignores the Line Feed (ASCII 10, 0x0A) character.
HyperTerminal
The HyperTerminal program is a standard windows program and can be found in Start >All Programs >Accessories >Communications
>HyperTerminal .
Setting up a HyperTerminal connection
To set up a HyperTerminal connection:
1. When HyperTerminal opens, it will immediately enter the New
Connection wizard.
• If you don't already have a connection saved, continue.
• If you do, click cancel and then open the pre-existing connection and skip the remaining steps in this procedure.
2. Enter a name.
Include the name of the interface you are intending to use for the connection as part of the name.
3. Click OK.
4. Select the COM port that is connected to the interface you wish to use to connect to the XTR.
5
M370046-01 5-17
Remote Operation
This is the COM port that you have your serial cable hooked up to or in the case of USB the one that was configured to be used in the FDTI software.
5. Click OK when done.
6. Setup the data format to be used. See “Data Format” on page 5–17 for
details.
7. Set up the Hyper terminal you will need to configure the properties.
8. Click File>Properties to bring up the connection properties dialog and click on the Settings tab.
5-18
Figure 5-14 USB Settings
9. Fill out the following selections in the connection properties dialog:
• Terminal keys
• Ctrl+H, Space, Ctrl+H.
• On the Emulation list, select ANSI.
10. Click on the ASCII Setup button to bring up the ASCII Setup dialog.
M370046-01
Terminal Configuration
M370046-01
Figure 5-15 ASCII Setup
11. Check the following boxes:
• Send line ends with line feeds.
• Echo typed characters locally.
• Append line feeds to incoming line ends.
• Wrap lines that exceed terminal width.
12. Change the Line delay to 30 milliseconds.
13. Click OK in the ASCII Setup window.
14. Click OK in the Properties window.
HyperTerminal has now been configured to communicate with the
XTR.
5
5-19
Remote Operation
Selecting the Appropriate Communication Port
Five ports are available for remote digital programming and readback:
• RS-232
• RS-485
• USB
• GPIB (optional)
• ENET (optional)
To select a communication port:
1. Turn the 9-position mode control to PGM.
rE is displayed in the output voltage display.
2. Turn the rotary Adjust/Enter control to select one of the communication ports: 232 , 485 , gPIb , USb , LAn .
LOCL Loc is also an available option which lets you lock the front panel to prevent the settings from being changed.
Important: The remote interface that was previously configured when the local lock setting was activated will still be available for remote control while the front panel is locked.
Data Rate Setting (Kbps)
The data rate setting is available for RS-232 and RS-485 protocols only.
Five optional rates are possible: 1.2, 2.4, 4.8, 9.6 (default), 19.2, 38.4, and
57.6 kilo bits per second (Kbps).
To select the desired rate:
1. Turn the 9-position mode control to PGM. rE is displayed in the output voltage display.
2. Turn the rotary Adjust/Enter control to select 232 (RS-232) or 485
(RS-485) communication ports.
3. Press the rotary Adjust/Enter control.
HbPS is displayed on the output voltage display and the currently set data rate is displayed on the output current display.
4. Turn the rotary Adjust/Enter control to select the desired data rate.
5. Press enter to commit the new data rate.
The multichannel address setting will now be configured.
5-20 M370046-01
Terminal Configuration
Multichannel Address Setting
The power supply multichannel address can be set to any address between
1 to 30. All units that are connected together via the RS-232 or RS-485 connector must have a unique multichannel address.
To set the address:
If more than one unit has the same multichannel address when connected through the RS-485 connector, then collisions are possible, resulting in garbled responses to queries.
2. Press the rotary Adjust/Enter control.
ADDR is displayed on the output voltage display.
3. Turn the rotary Adjust/Enter control to select the desired multichannel address between 1 to 30.
4. Press the rotary Adjust/Enter control to commit the new address.
5
M370046-01 5-21
Remote Operation
Remote Interface Addressing
All commands must be issued with a multichannel address or the device must be selected using the:
*adr or :SYST[<channel>]:COMM[:MCH]:ADDR commands.
Once a device is selected all commands sent without a multichannel address will be handled by the selected device. The use of multichannel addresses supersedes the selected device as the destination for a message.
For more details on how multichannel addresses affect responses, see
To change the selected device simply issue the *adr or
:SYST[<channel>]:COMM[:MCH]:ADDR command with a different multichannel address. The previously selected device will be deselected and the new device will be selected. From that point on, all messages without a multichannel address will be destined for the newly selected device. It is possible to deselect all devices by using the aforementioned commands with the broadcast address, 0.
The SCPI Commands for these instructions are:
[:]SYSTem:COMMunicate[:MCHannel]:ADDRess <address> or
*ADR <address>
Where:
<address> is the multichannel address of the device to be selected. The address is an integer value from 1 to 30.
5-22 M370046-01
Terminal Configuration
Multichannel Commands Explained
The use of multichannel addressing allows you to send messages to one device, more than one device or to all devices. Any of the remote interface types can be used to send a multichannel command through the device that is physically connected to the PC to all the devices, provided that all other devices are connected to via the RS-485 bus. In order to use multichannel addressing, the setup of the wiring should be completed as
described in “Multiple Power Supply Connections to RS-485 Bus” on page 5–15.
All SCPI commands in the XTR support the use of multichannel addressing; however, only one device can respond to a message.
Responses will be sent according to the conditions set out in Table 5-8.
Table 5-8 Rules for Multichannel Responses
Condition
No multichannel address used
Single multichannel address specified
ALL or broadcast multichannel address specified
Multiple multichannel addresses specified
Response
Only the device selected using the *adr or
:SYST[<address>]
:COMM[:MCH]:ADDR commands will respond.
The device addressed in the command will respond regardless of if it has been selected.
Only the device selected using the *adr or
:SYST[<channel>]:C
OMM[:MCH]:ADDR commands will respond. If none of the devices have been selected then no response will be seen.
Only the device selected using the *adr or
:SYST[<address>]
:COMM[:MCH]:ADDR commands will respond. If none of the device have been selected then no response will be seen.
Example
SYSTem:VERSion?
SYSTem2:VERSion?
:SYSTem
ALL:VERSion? or
:SYSTem0:VERSion?
SYSTem
1,2,4,5,6:VERSion?
5
M370046-01 5-23
Remote Operation
Multichannel commands are particularly useful for configuring groups of devices that require identical configurations.
The SCPI Commands for these instructions are:
[:]<root command> <ALL|addr1>[,[ ]<addr2>][,[
]<addr3>][,...]:<command> <parameter>
For example: sour 1, 2, 3, 7:volt 4.5
syst4,5,6:oper:enab 255 syst ALL:clear output0:stat on
5-24 M370046-01
Terminal Configuration
Status Reporting in SCPI
The status reporting implemented in the XTR is primarily dictated by the
SCPI standard. This section provides a high level review of the standard status reporting required by SCPI and then covers the XTR specific reporting that is implemented within the SCPI status reporting framework.
Figure 5-16 is taken from the SCPI 99 standard and shows the minimum
status reporting requirements for a SCPI compliant device.
Throughout this chapter, figures are used to explain the relationship between the registers, enable/disabling register and their summary bits.
The figures use four logical symbols to demonstrate the relationship between the register. The “!” block represents logical not or complement of the input signal. The “&” block represents the logical AND operator.
The “|” block represents the logical OR operation. The “+” block represents the logical OR of all the bits from the enable register. The model has several ellipses which are there to indicate that the pattern of logic shown is repeated for all bits in the registers.
5
M370046-01 5-25
Remote Operation
QUEStionable Status
VOLTage
CURRent
TIME
POWer
TEMPerature
FREQuency
PHASe
MODulation
CALIbration
Available to designer
Available to designer
Available to designer
Available to designer
INSTrument Summary
Command Warning
Not Used*
9
10
11
7
8
5
6
2
3
4
0
1
12
13
14
15
+
CALIbrating
SETTing
RANGing
SWEeping
MEASuring
Waiting for TRIGger Summary
Waiting for ARM Summary
CORRecting
Available to designer
Available to designer
Available to designer
Available to designer
Available to designer
INSTrument Summary
PROGram Running
Not Used*
OPERation Status
7
8
9
10
11
12
13
14
15
4
5
6
0
1
2
3
+
Standard Event
Status Register
Operation Complete
Request Control
Query Error
Device Dependent Error
Execution Error
Command Error
User Request
Power On
2
3
4
0
1
5
6
7
+
Available to designer
Available to designer
Available to designer
MAV
RQS
Figure 5-16 SCPI Status Reporting Model
Error/Event Queue
Status Byte
2
3
4
0
1
5
6
7
5-26 M370046-01
Status Registers Model from IEEE 488.2
Status Registers Model from IEEE 488.2
The IEEE 488.2 registers shown in the bottom rectangle of Figure 5-16
follow the IEEE 488.2 model for status registers. The IEEE 488.2 register
only has enable registers for masking the summary bits. Figure 5-17
shows the details on the relationship between the mask/enable registers and the summary bits. Sections describing the bits for both registers will
Error/Event Queue Status Flag
QUEStionable SCPI Register
Summary Bit
OPERational SCPI Register
Summary Bit
...
5
6
7
2
3
0
1
4
Standard
Event Status
Register
(SESR)
&
&
&
&
&
&
&
&
SESR
Summary
Bit
+
SERS Enable
Register
5
6
3
4
0
1
2
7
Figure 5-17 IEEE 488.2 Register Model
Status Byte
Register
2
3
0
1
4
5
6
7
Status Byte
Enable Register
6
7
4
5
2
3
0
1
&
&
&
&
&
&
MSS
Summary
Bit
&
+
5
M370046-01 5-27
Remote Operation
Status Byte
The Status byte register contains the STB and RQS (MSS) messages as defined in 488.1. You can read the status byte register using a 488.1 serial poll or the 488.2
*STB?
common command.
The *STB?
query causes the device to send the contents of the Status
Byte Register and the Master Summary Status (MSS) summary message.
The *STB?
query does not alter the status byte, MSS, or RQS.
Table 5-9 Status Byte Summary Register
0
1
2
Bit Bit
Weight Bit Name
3
4
5
6
7
1
2
4
8
16
32
64
128
Reserved
Reserved
Error/Event Queue
(ERR)
Questionable Status
Register (QSR)
Message Available
(MAV)
Standard Event Status
Bit Summary (ESB)
Request Service (RQS) /
Master Status Summary
(MSS)
Operation Status
Register (OSR)
Description
Reserved
Reserved
Set if any errors are present in the Error/Event queue.
Set if any bits are set in the Questionable Status Event register.
Indicates whether the output queue is empty. MAV is
TRUE if the device is ready to accept a request from the controller.
A summary of the Standard Event Status Register.
Not Implemented / MSS indicates that the device has at least one reason for requesting service.
Present if a bit is set in the Operation status register.
Error/Event Queue (ERR)
This bit is TRUE if any errors are present in the Error/Event Queue.
Questionable Status Register Summary (QSR)
This bit is TRUE when a bit in the Questionable Event Status Register is set and its corresponding bit in the Questionable Status Enable Register is
TRUE.
5-28 M370046-01
Status Byte
Message Available (MAV)
This bit is TRUE whenever the power supply is ready to accept a request by the Digital Programming Interface to output data bytes. This message is FALSE when the output queue is empty.
Standard Event Status Summary (ESB)
This bit is TRUE when a bit is set in the Standard Event Status Register.
Master Summary Status (MSS)
This is caused by one of the following:
• Status Byte bit 0 AND Service Request Enable Register bit 0
• Status Byte bit 1 AND Service Request Enable Register bit 1
• Status Byte bit 2 AND Service Request Enable Register bit 2
• Status Byte bit 3 AND Service Request Enable Register bit 3
• Status Byte bit 4 AND Service Request Enable Register bit 4
• Status Byte bit 5 AND Service Request Enable Register bit 5
• Status Byte bit 7 AND Service Request Enable Register bit 7.
Request Service (RQS)
RQS is TRUE if the Service Request Enable Register has a bit set and there is a corresponding bit within the Status Byte.
5
M370046-01 5-29
Remote Operation
Operation Status Register Summary (OSR)
This bit is TRUE when a bit in the Operation Event Status Register is set and its corresponding bit in the Operation Status Enable Register is set.
Service Request Enable Register
The Service Request Enable Register allows you to select the reasons for the power supply to issue a service request. The Service Request Enable
Register allows you to select which summary messages in the Status Byte
Register may cause service requests.
To clear the Service Request Enable Register send *SRE 0.
A cleared register does not allow status information to generate a service request.
For example:
Sending *SRE 8 sets bit 3 of the Service Request Enable Register. This will cause the Summary bit of the Questionable Status register (bit 3) in the Status Byte to generate a service request message whenever it gets set.
(See “Status Byte” on page 5–28 for details.)
Command:
*SRE <Service-Request-Enable>, *SRE?
The SCPI equivalent for multichannel use:
[:]STATus[<channel>]:SREQuest[:ENABle] <status-enable>
[:]STATus[<channel>]:SREQuest[:ENABle?]
Query the Status Byte
The status byte query will return the contents of the status byte register and the MSS (Master Summary Status) message. The response is in the format of a weighted decimal value representing the status byte register and the MSS message (bit 6). Thus, the response to *STB?
is identical to the response to a serial poll except that the MSS message appears in bit 5
in place of the RQS message. (See “Status Byte” on page 5–28 for
details.)
Command:
*STB?
SCPI equivalent:
[:]STATus [<address>]:SBYTe[:EVENt]?
5-30 M370046-01
Status Byte
Standard Event Status Register (SESR)
The standard event status register sets bits for specific events during power supply operation. All bits in the standard event status registers are set through the error event queue. The register is defined by IEEE 488.2 register and is controlled using 488.2 common commands: *ESE,
*ESE?
, and *ESR?
as well as SCPI aliases for multichannel use.
Standard Event Status Enable Register
The Event Summary Enable command determines which bits in the
Standard Event Status Register are summarized in the Event Summary Bit
(ESB) of the Status Byte. This register will be cleared at power up. To enable events, you must make the logical sum of all values for the events that you to be reported and send this parameter in decimal format.
See Table 5-9 for values for the events to be enabled in <status-enable>
parameter.
For example, sending *ESE 16 sets bit 4 of the Standard Event Status
Enable Register. This will cause the Event Summary bit (ESB) in the
Status Byte to be set whenever the Execution Error bit (bit 4) in the
Standard Event Status Register gets set.
Command:
*ESE <status-enable>, *ESE?
The SCPI equivalent for multichannel use:
[:]STATus[<channel(s)>]:STANdard:ENABle <status-enable>
[:]STATus[<channel(s)>]:STANdard:ENABle?
Standard Event Status Register
The Standard Event Status Register query allows you to determine the
current contents of the Standard Event Status Register. (See “Standard
Event Status Register (SESR)”. Reading this register clears it.
Command:
*ESR?
The SCPI equivalent for multichannel use:
[:]STATus[<channel(s)>]:STANdard[:EVENt]?
M370046-01 5-31
5
Remote Operation
Figure 5-18 summarizes the Standard Event Status Register.
Standard Event
Status Register
(SESR)
SESR
Summary
Bit
Operation Complete
Not Used
Query Error
Execution Error
Command Error
Not Used
Power On
3
4
5
6
7
0
1
2
+
Status Byte
Register
Not Used
Not Used
Error/Event Queue Status Flag
QUEStionable Status Summary Bit
Not Used
OPERation Status Summary Bit
4
5
2
3
0
1
6
7
MSS
Summary
Bit
+
Figure 5-18 Summary of Standard Event Status Register
1
2
3
Table 5-10 Standard Event Status Register
Bit
0
4
2
4
8
Bit Weight Bit Name
1
16
Operation Complete
(OPC)
Description
Set if *OPC command has been received and all pending operations have been completed.
Request Control (RQC) Not implemented. Always set to 0.
Query Error (QYE) Not implemented.
Device Dependent Error
(DDE)
Set if there is a device-specific error.
See “Device-Specific Error List” on page B–5
for a list possible error codes and descriptions.
Execution Error (EXE) Set if a program data element, following a header, was evaluated by the power supply as outside of its legal input range, or is otherwise inconsistent with the power supply’s capabilities. Suggests that a valid program message could not be properly executed due to some power supply condition.
See “Execution Error List” on page B–4 for a list of
possible error codes and descriptions.
5-32 M370046-01
6
7
64
128
8–15 N/A
User Request (URQ)
Power ON (PON)
Reserved
Status Byte
Table 5-10 Standard Event Status Register
Bit
5
Bit Weight Bit Name
32 Command Error (CME)
Description
Set if an IEEE488.2 syntax error has been detected by the parser, an unrecognized header was received, or a group Execute Trigger was entered into the input buffer inside an IEEE 488.2 program message.
See “Command Error List” on page B–3 for a list of
possible error codes and descriptions.
Not Implemented
Not Implemented
Reserved for possible future use by IEEE.
Bit values are reported as zero.
Operation Complete
The Operation Complete command causes the power supply to generate the operation complete message in the Standard Event Status Register
when all pending operations have been finished. See bit 0 in Table 5-10
for more details.
Command:
*OPC, *OPC?
Wait-to-Continue Command
The Wait-to-Continue command prevents the power supply from executing any further commands or queries until the no-operationpending flag is TRUE.
Command:
*WAI
5
M370046-01 5-33
Remote Operation
Standard SCPI Register Structure
All registers except the SERS and Status registers will have the following structure which control how they report status information. In all subsequent figures that have SCPI registers, this structure will be condensed down into a single block to simplify the figures. The simplified block will show a 16-bit register and the summary bit. See
Figure 5-19 for details on the structure used for each standard SCPI
register.
Figure 5-19 SCPI Register Model
5-34 M370046-01
OPERation Status Register
OPERation Status Register
The operation status register is a standard SCPI, 16-bit register which contains information about conditions which are part of the power supply's normal operation. The Operation Status data structure has the operation status register and two sub-registers to represent shutdown and protection shutdown. Each of the sub-registers is summarized in a summary bit.
Figure 5-20 represents the Operation Status data structure. The “+”
represents the logical summation/or of bits in a register. Table 5-11, Table
5-12, and Table 5-13 describe the meanings of each bit as well as the bit
number and bit weight.
S TA Tus:O P E R ation :S H U Tdow n :P R O Tection
O ver V O LTage
U nder V O LTage
O ver C U R R ent
N ot U sed
A C O ff
O ver TE M P erature
N ot U sed
Foldback
Fan Failure
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
8
9
10
11
12
13
14
15
3
4
5
6
7
0
1
2
+
N ever U sed
S TA Tus:O P E R ation :S H U Tdow n
P R O Tection S um m ary
IN Terlock
N ot U sed
E xternal S hutdow n
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
5
6
7
8
9
2
3
4
0
1
10
11
12
13
14
15
+
N ever U sed
S TA Tus:O P E R ation:C S H are
M A S Ter
S LA ve
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
N ot U sed
7
8
9
10
11
2
3
4
0
1
5
6
12
13
14
15
+
N ever U sed
Figure 5-20 Operation Status Register Fanout
S TA Tus:O P E R ation
C A Librating
N ot U sed
N ot U sed
N ot U sed
M E A S uring
W aiting for TR IG ger
N ot U sed
N ot U sed
N ot U sed
S H U Tdow n S um m ary
Local Lock
C urrent S hare S um m ary
C onstant C urrent M ode
C onstant V oltage M ode
P R O G ram R unning
N ot U sed
9
10
11
6
7
8
12
13
14
15
0
1
2
3
4
5
+
N ever U sed
To S tatus
B yte B it 7
5
M370046-01 5-35
Remote Operation
10
11
12
13
14
Table 5-11 OPERation Status Register
Bit
6
7
4
5
8
9
2
3
0
1
Bit Weight Bit Name
16
32
64
128
4
8
1
2
256
512
1024
2048
4096
8192
16384
Description
CALibrating
SETTling
RANGing
SWEeping
MEASuring
Waiting for Arm
Waiting for Trigger
CORRecting
Not Used
SHUTdown Summary
Indicates that the supply is in CALibration Mode.
Not implemented
Not implemented
Not implemented
Not implemented
Not implemented
Not implemented
Not implemented
Not Used
Reflects the summary of the SHUTdown Sub-
Register.
Local Lockout Front panel lockout
Current Share Summary Reflects the summary of the CSHare Sub-Register.
Constant Voltage Mode Reflects the output mode of the supply.
Constant Current Mode Reflects the output mode of the supply.
Program Running Indicates if an Autosequence program is currently running.
The operation shutdown status register describes the cause of the power supply shutting down the output. More than one bit may be active and multiple actions will be required to restart the unit. The protection shutdown sub-register indicates which protection mechanisms have caused the power supply to shutdown.
5-36 M370046-01
OPERation Status Register
Table 5-12 OPERation SHUTdown Status Register
1
2
3
Bit
0
2
4
8
Bit Weight Bit Name
1 PROTection
INTerlock
Not Used
External Shutdown
Description
Reflects the summary of the PROTection subregister.
The power supply is shut down by INTerlock signal.
Not Used
The power supply is shut down by External
Shutdown signal.
Table 5-13 OPERation SHUTdown PROTection Status Register
Bit
6
7
4
5
8
2
3
0
1
Bit Weight Bit Name
16
32
64
128
256
4
8
1
2
OVP
UVP
OCP
Not Used
AC Off
OTP
Not Used
Foldback
Fan
Description
Over Voltage protection has tripped.
Under Voltage protection has tripped.
Over Current protection has tripped.
Not Used
AC failure protection has tripped.
Over Temperature protection has tripped.
Not Used
Foldback protection has tripped.
Fan failure protection has tripped.
5
M370046-01 5-37
Remote Operation
Current SHare Sub-Register
This register shows the state of the current share configuration, which can either be set through the front panel Current Share Config menu, or through the SCPI command.
The SCPI command (s) for these instructions are:
[[:]SOURce]:COMBine:CSHare[:MODE]
Table 5-14 OPERation CSHare Status Register
Bit
0
Bit Weight Bit Name
1 MASTer
1 2 SLAVe
Description
The power supply is configured to be a Current
Share Master.
The power supply is configured to be a Current
Share Slave.
5-38 M370046-01
OPERation Status Register
Operation Status Register Commands
The response format for all register queries will be in decimal notation.
Query Operation Status Register Event
SCPI command:
[:]STATus[<channel>]:OPERation[:EVENt]?
Query Operation Status Register Condition
SCPI command:
[:]STATus[<channel>]:OPERation:CONDition?
Enable Operation Status Register
SCPI command:
[:]STATus[<channel>]:OPERation:ENABle <status-enable>
Query Format:
[:]STATus[<channel>]:OPERation:ENABle?
Set Operation Status Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:PTRansition <statusenable>
Query Format:
[:]STATus[<channel>]:OPERation:PTRansition?
Set Operation Status Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:NTRansition <statusenable>
Query Format:
[:]STATus[<channel>]:OPERation:NTRansition?
M370046-01 5-39
5
Remote Operation
Current Sharing Sub-Register Commands
Query Current Share Event
SCPI command:
[:]STATus[<channel>]:OPERation:CSHare[:EVENt]?
Query Current Share Condition
SCPI command:
[:]STATus[<channel>]:OPERation:CSHare:CONDition?
Enable Current Share Sub-Register
SCPI command:
[:]STATus[<channel>]:OPERation: CSHare:ENABle
<statusenable>
Query format:
[:]STATus[<channel>]:OPERation:CSHare:ENABle?
Set Current Share Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:CSHare:PTRansition
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:CSHare:PTRansition?
Set Current Share Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:CSHare:NTRansition
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:CSHare:NTRansition?
5-40 M370046-01
OPERation Status Register
Shutdown Sub-Register Commands
Query Shutdown Event
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown[:EVENt]?
Query Shutdown Condition
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:CONDition?
Enable Shutdown Sub-Register
SCPI command:
[:]STATus[<channel>]:OPERation: SHUTdown:ENABle <statusenable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:ENABle?
Set Shutdown Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:PTRansition
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:PTRansition?
Set Shutdown Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:NTRansition
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:NTRansition?
M370046-01 5-41
5
Remote Operation
Protection Sub-Register Commands
Query Protection Event
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection[:EVENt]?
Query Protection Condition
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:CONDition?
Enable Protection Sub-Register
SCPI command:
[:]STATus[<channel>]:OPERation: SHUTdown:PROTection:ENABle
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:ENABle?
Set Protection Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:PTRansition
<stats-enable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:PTRansition?
Set Protection Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:NTRansition
<status-enable>
Query format:
[:]STATus[<channel>]:OPERation:SHUTdown:PROTection:NTRansition?
5-42 M370046-01
QUEStionable Status Register
QUEStionable Status Register
The Questionable Status register is a standard SCPI, 16-bit register that stores information about questionable events or status during power supply operation. That is, bits in these registers may indicate that the output of the supply is of undesirable or questionable quality.
The Questionable Status data structure consists of a questionable status register and two sub-registers representing the status of the voltage outputs and temperature.
Figure 5-21 gives an overview of the Questionable Status data structure.
The “+” represents the logical summation of bits in a register. Table 5-15
Table 5-16, and Table 5-17 describe the meanings of each bit as well as
the bit number and bit weight.
5
M370046-01 5-43
Remote Operation
STATus:QUEStionable:VOLTage
Over Voltage Protection (OVP)
Under Voltage Protection (UVP)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
8
9
10
11
12
13
14
6
7
4
5
2
3
0
1
15
+
Never Used
STATus:QUEStionable:TEMPerature
Over Temperature Protection (OTP)
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
0
9
10
11
12
13
14
15
7
8
5
6
3
4
1
2
+
Never Used
Figure 5-21 SCPI QUEStionable Registers Fanout
STATus:QUEStionable
VOLTage
Not Used
Not Used
Not Used
TEMPerature
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
6
7
4
5
2
3
0
1
8
9
10
11
12
13
14
15
+
Never Used
To Status
Byte Bit 3
5-44 M370046-01
QUEStionable Status Register
Table 5-15 QUEStionable Status Register
Bit
12
13
14
15
8
9
10
11
6
7
4
5
2
3
0
1
Bit Weight Bit Name
256
512
1024
2048
4096
8192
16384
32768
16
32
64
128
4
8
1
2
VOLTage
CURRent
TIME
POWer
TEMPerature
FREQuency
PHASe
MODulation
CALibration
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Description
Summary of Voltage Register
Not Implemented
Not Implemented
Not Implemented
Summary of Temperature Register
Not Implemented
Not Implemented
Not Implemented
Not Implemented
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used 5
M370046-01 5-45
Remote Operation
VOLTage Sub-Register
This shows whether the present voltage level is over or under the specified trip limit.
Table 5-16 QUEStionable VOLTage Status Register
Bit
0
1
Bit Weight Bit Name
1
2
OVP
UVP
Description
Over Voltage Protection
Under Voltage Protection
TEMPerature Sub-Register
This shows whether the temperature of critical components is near or over the maximum operating temperature.
Table 5-17 QUEStionable TEMPerature Status Register
Bit
0
Bit Weight Bit Name
1 OTP
Description
Over Temperature Protection
5-46 M370046-01
QUEStionable Status Register
Questionable Status Register Commands
Query Questionable Status Register Event
SCPI command:
[:]STATus[<channel>]:QUEStionable[:EVENt]?
Query Questionable Status Register Condition
SCPI command:
[:]STATus[<channel>]:QUEStionable:CONDition?
Enable Questionable Status Register
SCPI command:
[:]STATus[<channel>]:QUEStionable:ENABle <status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:ENABle?
Set Questionable Status Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:PTRansition <statusenable>
Query Format:
[:]STATus[<channel>]:QUEStionable:PTRansition?
Set Questionable Status Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:NTRansition <statusenable>
Query Format:
[:]STATus[<channel>]:QUEStionable:NTRansition?
M370046-01 5-47
5
Remote Operation
Voltage Status Register Commands
Query Voltage Status Register Event
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage[:EVENt]?
Query Voltage Status Register Condition
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:CONDition?
Enable Voltage Status Register
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:ENABle
<status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:ENABle?
Set Voltage Status Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:PTRansition
<status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:PTRansition?
Set Voltage Status Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:NTRansition
<status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:NTRansition?
5-48 M370046-01
QUEStionable Status Register
Temperature Status Register Commands
Query Temperature Status Register Event
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
[:EVENt]?
Query Temperature Status Register Condition
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:CONDition?
Enable Temperature Status Register
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:ENABle <status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:ENABle?
Set Temperature Status Positive Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:PTRansition <status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:PTRansition?
Set Temperature Status Negative Transition Filter
SCPI command:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:NTRansition <status-enable>
Query Format:
[:]STATus[<channel>]:QUEStionable:VOLTage:TEMPerature
:NTRansition?
M370046-01 5-49
5
Remote Operation
SCPI Error/Event Queue
The error/event queue contains items that include a numerical and textual description of the error or event. Querying for the full queue item (for example, with SYSTem:ERRor[:NEXT]?
) will return a response with the following syntax:
<Error/Event Number>, "<Error/Event
Description>;<Optional Device Dependent Info>"
The <Error/event_number> is a unique integer in the range [-32768,
32767]. All positive numbers are instrument-dependent. All negative numbers are reserved by the SCPI standard with certain standard error/ event codes described in the SCPI 1999 standard document. The value, zero, is also reserved to indicate that no error or event has occurred.
The second parameter of the full response is a quoted string containing an
<Error/event_description> followed by optional <Device-dependent info> text. Each <Error/event_number> has a unique and fixed <Error/ event_description> associated with it.
The maximum string length of <Error/event_description> plus <Devicedependent_info> is 255 characters.
As errors and events are detected, they are placed in a queue. This queue is first in, first out. If the queue overflows, the last error/event in the queue is replaced with error:
-350,"Queue overflow
Any time the queue overflows, the least recent errors/events remain in the queue, and the most recent error/event is discarded. The error queue implemented in the XTR is capable of holding 4 errors.
When the error queue is not empty the error queue bit in the Status register will be set.
Querying For the Errors
Executing a query of the event queue will respond with the oldest error currently on the queue. This error is removed. The response format is discussed in the error/event queue description section.
Command:
[:]SYSTem:ERRor[:EVENt]?
5-50 M370046-01
SCPI Error/Event Queue
Examples:
SYST:ERR?
SYST:ERR:EVENT?
Responses might be:
-102, "syntax error;”
0, "No Error;"
Querying For the Error Code Only
It is possible to query for only the error code. When querying the error code only the response will be the numeric error code only, no additional description will be given. The error queried will be removed from the queue.
Command:
[:]SYSTem:ERRor:CODE[:EVENt]?
Example:
:SYST:ERR:CODE?
SYST:ERR:CODE:EVENT?
Responses might be:
-102
0
Querying For the Number of Errors in the Queue
To query the device for the number of errors currently stored in the error queue you should use the following command.
Command:
[:]SYSTem:ERRor:COUNt?
Example:
:SYST:ERR:COUN?
Response might be:
3
5
M370046-01 5-51
Remote Operation
Reset Command
The Reset command performs a device reset. The Reset command is the third level of reset in a three level reset strategy, set out in IEEE 488.2
(see IEEE 488.2 standard, section 17.1.2).
The Reset command shall do the following:
1. Set the device-specific functions to a known state that is independent
of the past-use history of the device. See Table 3-9, “Power Supply
Default Settings” on page 3–39 for details.
2. Force the device into the OCIS state, (see IEEE 488.2 standard, section 12.5.2).
3. Force the device into the OQIS state, (see IEEE 488.2 standard, section 12.5.3).
The reset command explicitly shall NOT affect the following:
1. The state of the IEEE 488.1 interface.
2. The selected IEEE 488.1 address of the device.
3. The Output Queue.
4. The Standard Status Register Enable setting.
5. The Standard Event Status Enable (SESR) setting.
6. The Operation and Questionable SCPI status registers and their fan out registers.
7. Calibration data that affects device specifications.
8. The Protected User Data query response.
Commands:
*RST
[:]SYSTem[<channel>]:RESet
5-52 M370046-01
SCPI Error/Event Queue
Clear All Status Registers
Clear Status Command
Clears all Event Registers, including the Status Byte, the Standard Event
Status and the Error Queue.
Command:
*CLS
[:]STATus[<channel>]:CLEar
5
M370046-01 5-53
Remote Operation
SCPI Preset Status
Configures the status data structures to ensure that certain events are reported at a higher level through the status-reporting mechanism. These events are summarized in the mandatory structures, the Operation Status
Register and Questionable Status Register.
The PRESet command affects only the enable registers and the transition filter registers of the status data structures. PRESet does not clear any of the event registers or any item from the error/event queue. The *CLS command is used to clear all event registers and queues in the device status-reporting mechanism.
For the device-dependent status data structures, the PRESet command sets the enable register to all 1s and the transition filter register to report only positive transitions. For the SCPI mandatory status data structures, the PRESet command sets the transition filter registers to recognize only positive transitions and sets the enable register to 0s. The following will not be affected by this command: Service Request Enable Register,
Parallel Poll Enable Register, the memory register associated with the
*SAV command, the power supply address, Output Queue, and the power-on-status-clear flag setting.
Table 5-18 Preset Values of User Configurable Registers
Register
Operational
Questionable
All others
Filter/Enable
Operational Enable Register
Positive Transition Filter
Negative Transition Filter
Questionable Enable Register
Positive Transition Filter
Negative Transition Filter
All other Enable Register
Positive Transition Filter
Negative Transition Filter
Preset Value
1
1
1
0
1
0
0
0
1
SCPI command:
[:]STATus[<channel>]:PRESet
5-54 M370046-01
SCPI Error/Event Queue
Command Line Help System
The Help system is made up of a series of commands that can be used to get help on all available commands and details on their syntax.
The Help commands are:
[:]SYSTem[<channel>]:HELP[:HEADers]?
[:]SYSTem[<channel>]:HELP:SYNTax?'<command for which you want help>'
[:]SYSTem[<channel>]:HELP:LEGacy?
Querying Help for all Command Headers
The [:]SYSTem[<channel>]:HELP[:HEADers]?
query shall return all SCPI commands and queries and IEEE 488.2 common commands and common queries implemented. No single line will be longer than 80 characters long. The full path for every command and query shall be returned separated by line feeds.
A <SCPI header> is defined as:
It shall contain all the nodes from the root. The <SCPI program mnemonic> contains the node in standard SCPI format. The short form shall use uppercase characters while the additional characters for the long form shall be in lowercase characters. Default nodes shall be surrounded by square brackets ([ ]).
Command:
[:]SYSTem[<channel>]:HELP[:HEADers]?
For example:
:SYST1:HELP:HEAD?
Might return:
*IDN?/qonly/
*RST/nquery/
*TST?/qonly/
*OPC/nquery/
*OPC?/qonly/
*WAI/nquery/
*CLS/nquery/
*ESE
5
M370046-01 5-55
Remote Operation
*ESR?/qonly/
*SRE
*SRE?/qonly/
*STB?/qonly/
*SAV
*RCL
*TRG/nquery/
*ADR
*HELP?/qonly/
*ERR?/qonly/
[:]SYSTem:PROTection[:MASK]
[:]SYSTem:ERRor[:NEXT]?/qonly/
[:]SYSTem:ERRor:CODE[:NEXT]?/qonly/
[:]SYSTem:ERRor:COUNt?/qonly/
…
[:]OUTPut:PROTection:FOLDback[:MODE]
[:]OUTPut:PROTection:FOLDback:
[:]OUTPut:POLarity
[:]OUTPut[:POWer][:STATe]
[:]OUTPut[:POWer]:PON[:STATe]
[:]OUTPut:AUXilliary[:STATe]
[:]OUTPut:AUXilliary:PON[:STATe]
[:]MEASure[:SCALar][:VOLTage][:DC]?/qonly/
[:]MEASure[:SCALar]:CURRent[:DC]?/qonly/
[:]MEASure[:SCALar]:APRogram[:VOLTage][:DC]?/qonly/
[:]MEASure[:SCALar]:APRogram[:VOLTage]:ISOLated[:DC]?/ qonly/
[:]MEASure[:SCALar]:APRogram:CURRent[:DC]?/qonly/
[:]MEASure[:SCALar]:APRogram:CURRent:ISOLated[:DC]?/qonly/
[:]INITiate:IMMediate/nquery/
[:]CALibration:RESTore/nquery/
[:]CALibration[:VOLTage]:PROTection[:OVER][:DATA]/nquery/
[:]CALibration:OUTPut[:VOLTage][:DATA]/nquery/
[:]CALibration:OUTPut:CURRent[:DATA]/nquery/
[:]CALibration:OUTPut:ANALog[:VOLTage][:DATA]/nquery/
[:]CALibration:OUTPut:ANALog[:VOLTage]:ISOLated[:DATA]/ nquery/
5-56 M370046-01
SCPI Error/Event Queue
Querying Help for Legacy Command Headers
The [:]SYSTem[<channel>]:HELP:LEgacy? query is essentially the same as the
[:]SYSTem[<channel>]:HELP[:HEADers]?
command, but it lists legacy Xantrex commands. If executed it returns all Xantrex legacy commands and queries implemented. The response shall be on a page by page basis. No single line will be longer than 80 characters and each page will be 23 lines long. The full path for every command and query shall be returned separated by line feeds. After a full page of headers has been displayed you will be prompted to press any key to continue or the ESC key to stop any further listing of the command headers.
Command:
[:]SYSTem[<channel>]:HELP:LEGacy?
For example:
:SYST2:HELP:LEG?
Might return:
AUX
OUT
ERR?/qonly/
CLR/nquery/
FOLD
DLY
VSET
ISET
TRG/nquery/
OVP
UVP
HELP?/qonly/
HLP?/qonly/
5
M370046-01 5-57
Remote Operation
Querying Help for Command Syntax
The SYSTem[<channel>]:HELP:SYNTax? query causes the device to return a string containing the syntax specification of the command associated with the <command_header>, a description of the command function and any aliases to the command. Each line of the response is tabbed to the right for readability.
Any <command_header> that is not a valid command header being recognized by the device, shall cause the device to return a null string
(""). E.g. if the <command_header> contains only a part of the header, contains an illegal numeric suffix, etc.
The response shall have the following format:
<Description of command>
<command header> <Command parameters
Alias: <list of command that perform the same function>
Command:
[:]SYSTem[<channel>]:HELP:SYNTax? {<string command>}
Where:
<string command> is the command to look up the syntax help on.
The following examples demonstrate how to use the syntax help command.
Example 1:
:SYST:HELP:SYNT? '*ADR'
Gets the response:
Select the PSU (power supply) to communicate with
*ADR ?|<NR1>
Aliases: :SYSTem:COMMunicate[:SELF]:ADDRess
Example 2:
:SYST:HELP:SYNTAX? "INIT:IMM"
Gets the response:
Triggers the Autosequence Program
[:]INITiate:IMMediate
Aliases: *TRG
5-58 M370046-01
M370046-01
SCPI Error/Event Queue
Example 3:
:SYST:HELP:SYNT? ':VOLT'
Gets the response:
Set Voltage Setpoint (Immediate)
[[:]SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]
?|<NR2>|MAXimum|MINimum
Aliases:
5
5-59
Remote Operation
Locking and Unlocking the Front Panel
Locking out the front panel will prevent any of the buttons from functioning. All the buttons and knobs on the front panel will display the
LOCL Loc message to be display on the Current and Voltage displays if pressed or rotated. This mode prevents any changes to the unit from the front panel. See the following procedure to lock and unlock the front panel.
The SCPI Commands for these instructions are:
[:]SYSTem[<channel>]:REMote:STATe {?|LOCal|REMote}
Where:
LOCal is used to set the front panel mode to local.
REMote is used to set the front panel into locked mode (remote).
For example:
SYST:REM:STAT REM Front panel is locked (remote digital programming mode only).
SYST:REM:STAT LOC Front panel is unlocked.
SYST:REM:STAT?
Query for status
Auto Sequence Programming
Auto Sequence programming lets you execute a program stored in the power supply’s memory. The program that can be stored in memory can be composed of any of the SCPI commands described in this Manual.
For example, Auto Sequence programming allows you to set the timer to turn the power output of the supply Off or On after a time interval or to program voltage sequences.
When a program is activated each command stored in the buffer is executed as if the operator had sent the command by typing it in. A variable delay time called dwell is spent between commands. The dwell
time can range from 0 seconds to 180 seconds. See “Setting Dwell Time” on page 5–61.
The Auto Sequence program will be cleared after AC power is turned off; however, a procedure exists for storing it in a text file which can be reloaded at a later date.
5-60 M370046-01
Locking and Unlocking the Front Panel
Setting Dwell Time
The dwell time is the amount of time that is delayed between each command during the execution of an Auto Sequence program. The dwell time can be from 0 to 180 seconds and can be changed during the program execution. The dwell time has a minimum step size of 1 second.
Command:
[:]PROGram[<channel>][:STEP]:DWELl {?|<dwell time> }
Where:
<dwell time > is an integer value from 0 to 180.
For Example:
:PROG:DWEL 12 Results in 12 seconds of wait time after each command is executed.
Storing an Auto Sequence Program:
Loading a program into memory is done by using the
[:]PROGram[<channel>][:RECord]:STARt command. After the start command has been issued, the XTR will record all subsequent commands into the auto sequence program buffer. The commands will be recorded into the buffer until the
:PROGram[<channel>][:RECord]:STOP command is issued.
Commands:
[:]PROGram[<channel>][:RECord]:STARt
[:]PROGram[<channel>][:RECord]:STOP
Important: If the start recording command is executed then any previously stored Auto Sequence program is deleted.
For example:
:PROG:STAR
:VOLT 12
:OUTP ON
:PROG:DWEL 60
:OUTP OFF
:OUTP ON
:OUTP OFF
M370046-01 5-61
5
Remote Operation
:PROG:DWEL 0
:PROG:STOP
This program will send a 12 V square wave with 120 seconds 50% duty cycle. When the program is finished, the dwell time is restored to 0 seconds.
Saving an Auto Sequence Program to File:
The following procedure indicates how to save an Auto Sequence program to a text file on the attached PC.
To save an Auto Sequence Program to a file:
1. Start the text capture by selecting Transfer>Capture Text … from the Hyper Terminal program.
2. Set the location and name of the auto sequence to be captured.
3. Click the Start button.
4. Execute a program read back by sending:
:PROG[<channel>]:READ?
5. Stop the text capture by selecting Transfer>Capture Text>Stop from the Hyper Terminal program.
6. Using any text editor open the file which you captured the Auto
Sequence program to.
7. Remove the first line which should read
":PROG[<channel>]:READ?" and the first blank line. This makes the first line of the program the first line of the file.
8. Save the file and exit the text editor.
The Auto Sequence program has not been stored and can be sent to
any unit. See “Reloading an Auto Sequence Program:” on page 5–63
for details.
Readback and Troubleshooting an Auto Sequence Program:
Since the Auto Sequence programming function records the commands at program time without verifying the syntax, it can be difficult to spot an error in the sequence, for example, if a typo was made when entering a command during the record phase. A readback command has been provided to output the stored auto sequence program currently in memory.
5-62 M370046-01
Locking and Unlocking the Front Panel
Another benefit to the readback command is it allows the auto sequence program to be captured and stored on the client side for reloading when the program is to persist beyond power cycles.
Command:
[:]PROGram[<channel>]:READback?
For Example:
:PROG:START
*CLS
:VOLT 5.4
:CURR 0.25
*IDN?
:PROG:STOP
:PROG:READ?
Response:
*CLS
:VOLT 5.4
:CURR 0.25
*IDN?
:PROG:STOP
Reloading an Auto Sequence Program:
The following procedure will demonstrate how to store a command beyond a power cycle of the unit.
Important: This functionality is only available through USB, RS-232 and
RS-485. It is not possible to reload an auto sequence program over the GPIB and
ENET cards.
To reload Auto Sequence program from file:
1. Set the data rate of the device to be 1200 bps.
2. Close the connection to the hyperterminal program and configure the connection data rate to be 1200 bps.
3. Execute the program recording command:
:PROG:START
5
M370046-01 5-63
Remote Operation
4. From the Hyper Terminal (or any other terminal program) select the
Transfer>Send Text File …
5. Navigate to and select the text file that was previously stored. Click the Open button.
6. Execute the program recording stop command:
:PROG:STOP
7. Execute the readback command to verify the entire program was transferred correctly:
PROG:READ?
8. Set the data rate back to the original speed.
9. Close the connection to the HyperTerminal program and configure the connection data rate to be the original speed.
Running an Auto Sequence Program:
Once an auto sequence program has been stored, there are a few commands that can be used to run the program. Once a program begins running, it will continue running until completion and then repeat the number of times specified by the repeat command. The default at power on is to have repeat set to 1.
Commands:
*TRG
[:]INITiate[<channel>][:IMMediate]
[:]PROGram[<channel>]:STATe {?|RUN|STOP|PAUSe}
Where:
RUN causes the program to begin execution.
STOP causes the program to stop execution
PAUSe causes the program to stop executing at the current command. If a subsequent run is sent, the program will resume executing with the next command in the program.
For Example:
:PROG:STAR
*IDN?
*IDN?
:PROG:STOP
5-64 M370046-01
Locking and Unlocking the Front Panel
:PROG:STAT RUN
The output after the last command might be as follows:
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
Important: Execution of the program may be terminated at any time by pressing the Esc key in the MS Windows Hyper Terminal window. The power supply can be controlled during program execution.
Deleting an Auto Sequence Program:
It is possible to delete the current Auto Sequence Program using the SCPI noted below.
Command:
[:]PROGram[<channel>]:DELete[:ALL]
Repeating an Auto Sequence Program:
An Auto Sequence Program can be configured to repeat any number of times or infinitely. The default at power up is to have the repeat count default to once. The program will repeat if the repeat count can be changed using the :PROGram[<channel>]:REPeat command. If a program is running or pause the :PROGram[<channel>]:REPeat command will not work.
Commands:
[:]PROGram[<channel>]:REPeat {?|<count>|INFinity}
Where:
<count> is the repeated count from 1 to 65 534.
INFinity is the character mnemonic for repeating without end.
For Example:
:PROG:STAR
*IDN?
*IDN?
:PROG:STOP
5
M370046-01 5-65
Remote Operation
:PROG:REP 2
:PROG:STAT RUN
The output after the last command might be as follows:
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
Xantrex, XTR 150-5.6, SN# E00123456, 1.00 Build 10,
21/11/2005
5-66 M370046-01
Configure Other Protection Mechanisms
Configure Other Protection Mechanisms
Foldback Protection
Foldback protection causes the output of the power supply to shut down if the selected regulation mode is entered and the configured delay time expires. A delay time may be specified as well. The only way to clear foldback is by pressing the rotary Adjust/Enter control for 3 seconds and executing the Clear command.
Command:
[:]OUTPut[<channel>]:PROTection:CLEar
Setting the Foldback Mode
The following command will set the foldback mode. The mode selected by the character mnemonic sent will indicate which mode will trigger the foldback alarm to begin counting. For example, if the command is sent with the CV mnemonic and the output is enabled with no load attached
(open circuit), the unit will operate in constant voltage mode and the foldback counter will begin counting. If the CC mode was set and the output was enabled with no load connected, the unit will operate in CV mode and the foldback counter will not trigger.
To set the foldback mode, send the command:
Command:
[:]OUTPut[<channel>]:PROTection:FOLDback {?|CC|CV|NONE}
Where:
NONE indicates foldback protection is disabled.
CC indicates the supply will shut down due to constant current condition.
CV indicates the supply will shut down due to constant voltage.
The default value is NONE.
To set the foldback delay, send the command:
M370046-01
Command:
[:]OUTPut[<channel>]:PROTection:FOLDback:DELay
<delay_time>
Where:
<delay_time> is a value in the range of 0.5-50 seconds. The unit of second is the default and no units should be used with this parameter.
(Increments of 0.1seconds are allowed.).
The default value is 0.5 seconds.
5-67
5
Remote Operation
Over Temperature Protection
The over temperature protection (OTP) is the alarm that protects the unit in case of ventilation blockage, fan failure, or some other event that cause the unit to overheat. The OTP can be masked to disable it. To mask an
alarm, see “Alarm Masking” on page 3–21 which maps out the bit
position for each of the flags.
The alarm masking command can be entered using the SCPI command.
The SCPI command (s) for these instructions are:
[:]SYSTem[<channel(s)>]:PROTection:LATCh
[:]SYSTem[<channel(s)>]:PROTection:MASK
The OTP alarm can also be have its output latch on clearing. See “Alarm
Output Latching” on page 3–22. The On setting shown by the front panel
(“Using Over Temperature Protection Lock (OTP)” on page 3–29) maps
to having the OTP latch flag set. The OFF setting maps to having the OTP latch flag cleared. The default is to have the flag cleared.
Interlock Enable/Disable
The interlock feature is explained in “Interlock Function” on page 3–32.
Use the following command to enable and disable interlock. Enabling interlock will allow the interlock feature to trigger based on the conditions
described in “Interlock Function” on page 3–32. This feature can only be
controlled using a SCPI command as there is no front panel equivalent.
The default value of the interlock is to be disabled.
Important: The Interlock alarm cannot be masked or latched through the alarm protection mechanisms. It can only be enabled or disabled using the following command.
Commands:
[:]SENSe[<channel>]:INTerlock[:STATe] {?|ON|OFF}
Where
ON enables the use of interlock protection.
OFF disables the use of interlock protection.
5-68 M370046-01
Configure Other Protection Mechanisms
Save and Recall
The save and recall of user settings can be done using commands as well as at the front panel. Executing the save and recall commands will have
the same outcome as following the procedure outlined in “Saving User
Setting Memory Locations” on page 3–35 and “Recalling User Setting
Memory Locations” on page 3–36.
Commands:
[:]SYSTem[<channel>]:SAVE {<user settings slot>}
[:]SYSTem[<channel>]:RECall {<user settings slot>}
Where
<user settings slot> is any integer between 1 and 3. The value corresponds to you the setting to be operated on.
Set Analog Programming Level
Setting the analog programming level is used to define the range from 0 to the level that will be input into the analog programming lines to control the output. The command is equivalent to the procedure described in
“Analog Programming Mode” on page 4–9.
Commands:
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
[:VOLTage][:ISOLated] {?|<level>}
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
[:VOLTage] {?|<level>}
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
:CURRent[:ISOLated] {?|<level>}
[:]SYSTem[<channel>]:COMMunicate:APRogram:LEVel
:CURRent {?|<level>}
Where
<level> is the maximum voltage or resistance that will be input to the analog inputs.The acceptable range is from 2 to 10 V and 2 to 10k Ω.
5
M370046-01 5-69
Remote Operation
Set Remote Programming Interface
The remote source can be select using the following SCPI commands.
These commands are equivalent to the procedure on “Voltage-Controlled
Voltage APG Setup” on page 4–10 and “Voltage-Controlled Current
Commands:
[:]SYSTem[<channel>]:REMote:SOURce[:VOLTage]
{?|LOCal|AVOLtage|ARESistive}
[:]SYSTem[<channel>]:REMote:SOURce:CURRent
{?|LOCal|AVOLtage|ARESistive}
Where:
LOCal indicates the value is controlled by the set point.
AVOLtage is used to set the output to be controlled by an analog voltage input.
ARESistive is used to set the output to be controlled by a resistor circuit.
IAVoltage is used to set the output to be controlled by the isolated analog voltage input.
IAResistive is used to set the output to be controlled by the isolated analog resistor circuit.
5-70 M370046-01
Configure Other Protection Mechanisms
Protection Mask (Enable Alarms)
The protection mask allows for the different alarms to be masked, completely disabling them. This means that the SCPI status and operations registers will not detect the alarms. You will have no way of knowing the current operation state of the alarm. The protection mask is a feature that is only accessible using the SCPI command noted below.
Command:
[:]SYSTem[<channel>]:PROTection[:MASK] {?|<mask>}
Where
<mask> is the bit mask for disabling the alarms. See Table 5-19 for
details.
Table 5-19 Alarms Bit Mask
Bit
5
6
3
4
0
1
2
7
8
9
10
Bit Weight Bit Name
8
16
32
64
1
2
4
128
256
512
1024
AC Fail
OTP
N/A
Fan Stop
N/A
Interlock
OVP
OCP
Foldback
Shutdown
UVP
Description
Not used. Always 1.
Over Temperature protection.
Not used.
Fan on the main board.
Not used.
Not used. Always 1.
Not used. Always 1.
Not used. Always 1.
Foldback protection.
External Shutdown pin
Under Voltage protection.
See “Alarms and Errors” on page 3–18.
5
M370046-01 5-71
5-72
A
SCPI Command
Reference
Appendix A, SCPI Command Reference, provides a
summary of the Standard Commands for Programmable
Instruments (SCPI) that are supported by the XTR 850
Watt Series Programmable DC Power Supply.
SCPI Command Reference
SCPI Conformance Information
Codes and Standards
This power supply conforms to the following international standards:
• IEEE Std. 488.2-1992, “IEEE Standard Codes, Formats, Protocols, and Common Commands For Use With IEEE Std. 488.1-1987”
• IEEE Std. 488.1-1987 “IEEE Standard Digital Interface for
Programmable Instrumentation”
• TIA/EIA-232F
• Standard Commands for Programmable Instruments (SCPI) Version
1999.0
IEEE 488.2 Requirements
GPIB control implements all IEEE 488.2 requirements.
SCPI Requirements
The power supply conforms to the following SCPI requirements:
• SCPI mandated commands
• Questionable Status Register (QSR), Condition, Event, Enable
• Operation Status Register (OSR), Condition, Event, Enable
• Status Byte Register (SBR)
• Standard Event Status Register (SESR)
IEEE 488.2/SCPI Syntax and Style
Parameters: Units of Measure and Multipliers
Refer to IEEE 488.2, section 7.7.3 for the definition of units of measure.
The default units of measure include:
• V (Volt – voltage)
• A (Ampere – current)
• W (Watt – power)
• S (seconds – time)
These units are only supported as defaults. To place the unit in the command will cause an error to be pushed into the error queue.
A-2 M370046-01
SCPI Conformance Information
SCPI Command Hierarchy
SCPI is an ASCII-based command language designed for use in test and measurement equipment. The command structure is organized around common roots, or nodes, which are the building blocks of SCPI subsystems. An example of a common root is CALibration, and some of the commands that reside in the CALibration subsystem are:
[:]CALibration
[:OUTPut]
[:VOLTage]
[:DATA] <NR1>
:CURRent
[:DATA] <NR1>
CALibration is the root keyword of the command. OUTPut is a secondlevel keyword, and VOLTage and DATA are third-level keywords. A colon (:) is used to separate a command keyword from a lower-level keyword.
A
M370046-01 A-3
SCPI Command Reference
Using SCPI Commands
This Manual shows SCPI commands in the following format:
CALibration:CURRent:LEVel {<current>|MIN|MAX}
The command is expressed as a mixture of upper- and lowercase letters.
The uppercase letters suggest how the command can be abbreviated into a short form. SCPI commands can be sent in long or short forms. The short form is better for data entry. The long form is better for readability.
Command strings are not case sensitive: CURR , Curr , and curr are all acceptable abbreviations for CURRent . As for the long form, CURRENT ,
Current , and current are all acceptable. It is not possible to write for example, CALibrat:CURR:LEV because the extra first node does not explicitly match the short or long form of the calibration node.
The command strings include punctuation. While some punctuation is sent with the string, other markings are used to identify different elements of the command syntax and are not sent with the string.
The following punctuation is sent with the command string:
• Colons (:) separate command keywords from lower-level keywords.
For example, CAL:CURR:STAT .
• Blank spaces separate command keywords from parameter values.
For example, CURR 0.1
.
• Commas separate parameters from each other when more than one parameter is sent in the same string. For example, CAL:STAT
OFF,”1234.”
• Semicolons (;) separate multiple commands from the same subsystem. This allows for greater efficiency.
For example: CAL:CURR:LEV MIN;VOLT:LEV MIN is the same as typing:
CAL:CURR:LEV MIN
CAL:VOLT:LEV MIN
• Colons and semicolons can be used together to link commands from different subsystems. For example:
CAL:CURR:LEV MIN;:MEAS:CURR?
The short form is made up of 3 or 4 letters. There can only be a absolute short or long form. For example, it is not possible to write
CALibrat:CURR:LEV because the extra the first node does not match explicitly the short or long form of the calibration node.
A-4 M370046-01
SCPI Conformance Information
The following punctuation is not sent with the command string:
• Braces ({ }), or curly brackets, identify a selection of choices. Choose one of the enclosed values.
• Vertical bars, or pipes, ( | ) can be read as “or” and is used to separate the choices found within the braces.
• Angle brackets ( < > ) identify where specific values must be entered for a parameter. For example, in the example at the top of the page, the parameter <current> appears in the command string. To set the current set point to 0.1A, the syntax is CAL:CURR:LEV 0.1
.
• Square brackets ( [ ] ) identify optional parameters. If an optional parameter is not sent with the command string, a default parameter is sent in its place.
Using Minimum and Maximum
In the following example, Minimum and Maximum are offered as alternative choices to declaring a specific parameter value.
CAL:CURRent:LEVel {<current>|MIN|MAX}
The string CAL:CURR:LEV MIN sets the current calibration level to the minimum model value.
Using Queries
A question mark lets you query the present value for most parameters. For example, to query the current calibration state use:
CAL:SEC:STAT?
You can also use the following to query minimum and maximum allowed values for most parameters:
:VOLT? MIN
:VOLT? MAX
A
Important: If you send two queries, it is best to read and respond to the first response before trying to read the second. Otherwise, you may receive an incomplete first response followed by a complete second response. To avoid this, you can either wait for and read the first response before sending the second query, or send a device clear message before sending the second query.
M370046-01 A-5
SCPI Command Reference
Terminating Characters
Every command string must end with a terminating <new line> character.
It is also acceptable to use a <carriage return> followed by a <new line>.
Terminating a command string always resets the SCPI command path to the root level.
Common Commands
The IEEE-488.2 standard includes a set of common commands for functions such as reset and self-test. These common commands always start with an asterisk (*), contain 4 or 5 characters, and may have one or more parameters. The command is always separated from the parameter by a blank space. Multiple commands sent in the same string are separated by a semi-colon (;). The following is an example of how 3 common commands can be sent together in the same string:
*OPC; *PSC Off; *TRG
A-6 M370046-01
SCPI Conformance Information
Parameter Types
Several different data types are defined for use in program messages and response messages.
Boolean Parameters
Boolean parameters are single binary conditions such as 1 and 0, or ON and OFF. The following is an example of a command that uses Boolean parameters:
SYST:COMM:GPIB:PONS {ON|OFF|1|0}
Discrete Parameters
Discrete parameters are used when program settings have a limited number of values. If you query a discrete parameter, the response will always be in the short form with all uppercase letters. The following is an example of a command that uses discrete parameters:
TRIG:SOUR {BUS|EXT|IMM|NONE}
Numeric Parameters
Numeric parameters are number representations such as decimal points, optional signs, and scientific notation. Values such as MINimum and
MAXimum are accepted as substitutes for numbers. When DEFault is provided as a parameter, the machine selects the default value automatically. No units’ suffix should be included with the parameter, only support for defaults units is available. In cases where specific numeric values are accepted, the power unit will round the input parameters. The following is an example of a command that uses numeric parameters:
VOLT:PROT {<voltage>|MAX|MIN}
String Parameters
String parameters are used when a series of ASCII characters is required.
Strings must be enclosed within single or double quotations. The beginning and ending quotation marks must be matching. Quote delimiters may be included in the string by typing the quotation marks twice without any characters in between. The following is an example of a command that uses string parameters:
CAL:STAT ON, “0000”
A
M370046-01 A-7
SCPI Command Reference
SPCI Command Tree
The SCPI commands are organized into a tree structure. To illustrate the tree structure, the following tree has been provided. Each level of indentation presents a branch. The command to execute can then be found by following the tree from the root or farthest left node all the way down to the leaf node.
For example, to do the analog isolated programming command, start at the [:]CALibration root node, go through the :OUTPut node and then move down past the [:VOLTage] and :CURRent nodes which appear at that level to the :ANALog node and then move through the optional
[:VOLTage] node to the :ISOLated node.
Thus, the command would then be
[:]CALibration:OUTPut:ANALog[:VOLTage]:ISOLated
All commands can be formed by looking at this tree and taking the unique
path from the root node to the leaf node. Table A-1 on page A–14 shows
all the commands fully formed with parameters.
[:]CALibration
:PARameter
:APRogram
:INPut
[:OUTPut]
:INPut
:ANALog
[:VOLTage]
:CURRent
:OUTPut
[:VOLTage]
:CURRent
:MONitor
[:VOLTage]
:ISOLated
:CURRent
:ISOLated
:ANALog
[:VOLTage]
A-8 M370046-01
M370046-01
:ISOLated
:RESistive
:ISOLated
:CURRent
:ISOLated
:RESistive
[:VOLTage]
:ISOLated
:PROTection
[:OVER]
:RESTore
[:]INITiate
[:IMMediate]
[:]MEASure
:AProgram
[:VOLTage]
[:DC]
:ISOLated
[:DC]
:CURRent
[:DC]
:ISOLated
[:DC]
[:SCALar]
[:VOLTage]
[:DC]?
:CURRent
[:DC]?
[:]OUTPut
:PROTection
:CLEar
:FOLDback
[:MODE]
:DELay
:LATch
SPCI Command Tree
A
A-9
SCPI Command Reference
:POLarity
[:POWer]
[:STATe]
:PowerON
[:STATe]
:AUXilliary
[:STATe]
:PowerON
[:]PROGram
[:STATe]
:READback
: STATe
[:RECord]
:STARt
:STOP
:DELete
[:ALL]
:REPeat
[:STEP]
:DWELl
[[:]SOURce]
:COMBine
:CSHare
[:MODE]
:VOLTage
[:LEVEl]
[:IMMediate]
[:AMPLitude]
:PROTection
[:OVERvoltage]
[:LEVel]
:UNDer
[:LEVel]
:CURRent
[:LEVEl]
A-10 M370046-01
M370046-01
[:IMMediate]
[:AMPLitude]
[:]SENSe:
:PROTection
:INTerlock
[:STATe]
:TEMPerature
[:LATCh]
[:]STATus
:PRESet
:QUEStionable
[:EVENt]?
:ENABle
:CONDition
:PTRansition
:NTRansition
:VOLTage
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
:CURRent
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
:TEMPerature
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
SPCI Command Tree
A
A-11
SCPI Command Reference
:OPERation
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
:CSHare
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
:SHUTdown
[:EVENt]?
:ENABle
:CONDition
:PTRansition
:NTRansition
:PROTection
[:EVENt]?
:ENABle
:CONDition?
:PTRansition
:NTRansition
:STANdard
[:EVENt]?
:ENABle
:CLEar
:SBYTe
[:EVENt]?
:SREQuest
[:ENABle]
[:]SYSTem
:FPANel
[:TIMeout]
A-12 M370046-01
M370046-01
:PROTection
:LATCh
[:MASK]
:RESet
:WAIT
:TEST?
:RESet
:IDENtify?
:REMote
:STATe
:SOURce
[:VOLTage]
:CURRent
:COMMunicate
:APRogram
:LEVel
[:VOLTage]
[:ISOLated]
:CURRent
[:ISOLated]
[:MCHannel]
:ADDRess
:SAVE
:RECall
:VERSion?
:ERRor
[:NEXT]?
:CODE
[:NEXT]?
:COUNt?
:HELP
[:HEADers]?
:SYNTax?
SPCI Command Tree
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B
Calibration and
Troubleshooting
Chapter B, Calibration and Troubleshooting, contains
information and procedures for calibrating and troubleshooting the power supply.
Calibration and Troubleshooting
Introduction
The calibration of the power supply is software dependent, and there are no potentiometers to adjust.
Calibration is performed via SCPI commands.
The following items need to be calibrated:
• Programmed voltage
• Voltage readback
• Programmed current
• Current readback
• Non-isolated voltage monitoring
• Isolated voltage monitoring
• Non-isolated current monitoring
• Isolated current monitoring
• Isolated source for analog programming
• Non-isolated source for analog programming
• Over voltage protection system
CAUTION: Equipment damage
Calibration procedures should only be performed by qualified user.
B-2 M370046-01
Calibration and Troubleshooting
Main Voltage and Current Calibration Principle
Understanding the Problem
Figure B-1 illustrates two sources of analog programming error: gain
error and offset error. Gain error is the departure from the ideal slope of the measured versus programmed line. Offset error is the magnitude of the measured value when the programmed value is zero.
For best results, the next recommended action is gain calibration for 90% of maximum value and offset calibration for 10% of maximum value.
Perform gain calibration again.
Idea l
Re al
Gain Error
Offset Error
Programmed Value
Figure B-1 Offset (Intercept) Error and Gain (Slope) Error
6
M370046-01 B-3
Calibration and Troubleshooting
Step 1: Gain Calibration
Figure B-2 Calibration: Step 1 Gain Calibration
Adjust the gain so that the real line and ideal line intersect at a programmed value of 90%.
Step 2: Offset Calibration
B-4
Figure B-3 Calibration: Step 2 Offset Calibration
Adjust the offset so that the real and ideal lines intersect at a programmed value of 10%.
M370046-01
Step 3: Recalibrate Gain
Calibration and Troubleshooting
Figure B-4 Calibration: Step 3 Recalibrate Gain
Repeat Step 1 for best results.
M370046-01 B-5
6
Calibration and Troubleshooting
Calibrating the Output Voltage
Gain calibration of the power supply has the greatest affect on the accuracy in the high voltage range. Offset calibration has the greatest affect on accuracy of the power supply at low voltages. The same calibration command is used for the gain and offset calibrations. The type of calibration is determined internally by the XTR depending on if the set point is above 10% of the maximum output voltage value or not. If it is above 10% of the maximum voltage, the calibration is a gain calibration; if is below 10%, it is an offset calibration.
Gain Calibration
To perform gain calibration:
1. Disconnect the power supply from the load.
2. Connect the output terminals to a precision voltmeter.
3. Turn both the power supply and the voltmeter to On.
4. Set the current set point to maximum. Set the supply output to 90% of the nominal voltage level.
5. Turn on the output power.
6. Read the voltage value on voltmeter display.
7. Type the SCPI command with voltage value as parameter “data”.
For example, type :CAL:OUTP 138.3 if you had an XTR 150-5.6 calibrating with the voltage set point set to 135 V and the voltmeter was reading 138.3 volts
Offset Calibration
To perform offset calibration:
1. After performing gain calibration, set the programmed voltage 10% from nominal.
2. Read the voltage value on the voltmeter display.
3. Type the SCPI command with voltage value as parameter “data”.
For example, you would type :CAL:OUTP12.3
if you had an XTR
150-5.6 calibration with the voltage set point set to 10V and the voltmeter was reading 12.3 volts.
B-6 M370046-01
Calibration and Troubleshooting
After performing offset calibration, Xantrex recommends that you repeat gain calibration.
Important: For best results, both calibrations may be repeated several times.
The SCPI Command (s) for these instructions are:
[:]CALibration[<channel>]:OUTPut{:VOLTage]{<voltmeter reading in volts>}
Calibrating the Output Current
Gain Calibration
To perform gain calibration:
1. Disconnect the power supply from the load.
2. Connect the output terminals to a load representing a short circuit using a precision ammeter.
3. Turn both the power supply and the load On.
4. Set the voltage set point to maximum. Set the supply output to 90% of the nominal current level.
5. Turn on the output power.
6. The power supply starts up in Constant Current mode.
7. Read the current value on the ammeter display.
8. Type SCPI command with current value as parameter “data”.
For example, type :CAL:OUTP 5.07 if you had an XTR 150-5.6 calibrating with the current set point set to 5.04 A and the ammeter was reading 5.07 amps.
6
M370046-01 B-7
Calibration and Troubleshooting
Offset Calibration
Offset calibration of the power supply provides the best accuracy in lowrange current.
To perform offset calibration:
1. After performing gain calibration, set the current to 10% from the nominal.
2. Read the current value on the ammeter display.
3. Type SCPI command with the current value as parameter "data".
For example, you would type :CAL:OUTP:CURR 0.50 if you had an XTR 150-5.6 calibrating with the current set point set to 0.56 A and the actual current measured was 0.50A.
After performing offset calibration, it is highly recommended that you repeat gain calibration.
Important: For best results, both calibrations may be repeated several times.
To maintain the high current accuracy of the XTR series of power supplies, user current calibration should only be done with a high accuracy calibrated shunt resistor of at least 0.025% tolerance.
SCPI Command
[:] CALibration[<channel>]:OUTPut:CURRent{<ammeter reading in amps>}
B-8 M370046-01
Calibration and Troubleshooting
Over Voltage Protection Calibration
Important: The Voltage Calibration must be done before performing this procedure. If this is not done the OVP calibration will be inaccurate.
To calibrate the over voltage protection:
1. Turn on the power supply.
2. Select the VAP mode to be Off.
3. Set the voltage set point to be 90% of the model voltage and the current to be 10% of the model current.
4. Turn on the main power output.
5. Execute the OVP calibration SCPI command:
:CAL:PROT <output value set in step 3>
6. The power supply will enter into self-calibration mode. The output voltage display blinks OVP CAL. After several seconds, the calibration will complete and the display will return to normal operation with output off.
Calibration of the power supply is complete.
Important: The output (main) voltage must be precalibrated.
The SCPI command (s) for these instructions are:
[:]CALibration[:VOLTage]:PROTection[:OVER]
{<expected output value>}
6
M370046-01 B-9
Calibration and Troubleshooting
Non-isolated Analog Programming Calibration
Prior to this, the main output must be calibrated first.
Important: In calibration commands, when + or – keys are expected, any other key will exit from the calibration mode.
Non-isolated Voltage Monitoring Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 8.
To calibrate the non-isolated voltage monitoring:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the voltmeter to the non-isolated voltage monitoring output lines (J1.13 - J1.7).
3. Set the Voltage APG level to 4 V. Send the SCPI command:
SYST:COMM:APR:LEV 4
4. Set the input source as Local. Send the SCPI command:
SYST:REM:SOUR LOC
5. Set the main output voltage to 100% by sending the command:
SOUR:VOLT <ModelVolt> or use the rotary adjust/Enter control.
6. Turn the main output On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter interactive calibration mode by sending the SCPI command:
CAL:MON
8. Press on the terminal keys – or + to reduce or increase monitoring value. Adjust the monitoring value displayed on the voltmeter that was set up in Step 1 to read as close as possible to 4.000 V.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
B-10 M370046-01
Non-isolated Current Monitoring Calibration
Calibration and Troubleshooting
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 8.
To calibrate the non-isolated current monitoring:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the voltmeter to the non-isolated current monitoring output lines (J1.12 - J1.7).
3. Set the Current APG level to 4 V. Send the SCPI command:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source as Local.
5. The SCPI command is:
SYST:REM:SOUR:CURR LOC
6. Set the main output voltage to 100% by sending the command
SOUR:VOLT <ModelVolt> or use the rotary adjust/Enter control.
7. Turn the main output On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
8. Enter interactive calibration mode by sending SCPI command:
CAL:MON:CURR
9. Press on the terminal keys – or + to reduce or increase the monitoring value. Adjust the monitoring value displayed on the voltmeter that was set up in Step 1 to read as close as possible to 4.000 V.
10. Press any key other than the + or – keys to exit from interactive calibration mode.
6
M370046-01 B-11
Calibration and Troubleshooting
Non-isolated Voltage Programming of Voltage Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 4.
To calibrate the non-isolated voltage programming of voltage:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the input voltage source to the non-isolated connector, voltage programming (J1.9 - J1.7).
3. Set the Voltage APG level to 4 V. Send the SCPI command:
SYST:COMM:APR:LEV 4
4. Set input source voltage to 4.000 V.
5. Set the input source as Voltage Non-Isolated for Voltage
Programming. The SCPI command is:
SYST:REM:SOUR AVOL
6. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL
8. Press the terminal keys – or + to reduce or increase the main output voltage value. Adjust the main output voltage to 100%, measured on the external voltmeter on the output.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
B-12 M370046-01
Calibration and Troubleshooting
Non-isolated Resistive Programming of Voltage Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating resistance level in steps 2 and 3.
To calibrate the non-isolated resistive programming of voltage:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the 4.000k
Ω resistor to the non-isolated connector, resistive programming of voltage, and voltage programming (J1.9-J1-11, and
J1.7).
3. Set the resistive APG level to 4k Ω . The SCPI command is:
SYST:COMM:APR:LEV 4
4. Set the input source as Resistive Non-Isolated for Voltage
Programming. The SCPI command is:
SYST:REM:SOUR ARES
5. Turn the main output On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
6. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:RES
7. Press the terminal keys – or + to reduce or increase main output voltage value. Adjust the main output voltage to 100%.
8. Press any key other than the + or – keys to exit from interactive calibration mode.
6
M370046-01 B-13
Calibration and Troubleshooting
Non-isolated Voltage Programming of Current Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 4.
To calibrate the non-isolated voltage programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the input voltage source to the non-isolated connector, current programming (J1.10 - J1.7).
3. Set the Voltage APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source voltage to 4.000 V.
5. Set the input source as Voltage Non-Isolated for Current. The SCPI command is:
SYST:REM:SOUR:CURR AVOL
6. Turn the main output On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:CURR
8. Press the terminal keys – or + to reduce or increase the main output current value. Adjust the main output current to 100%.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
B-14 M370046-01
Calibration and Troubleshooting
Non-isolated Resistive Programming of Current Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating resistance level in steps 2 and 3.
To calibrate the non-isolated resistive programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the 4.000 k Ω resistor to the non-isolated connector (APG -
J1), one terminal to resistive programming of current (J1.12) and voltage programming of current (J1.10), and the other terminal to the common (J1.7).
3. Set the resistive APG level to 4 k Ω . The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source as Resistive Non-Isolated for Current
Programming. The SCPI command is:
SYST:REM:SOUR:CURR ARES
5. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
6. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:CURR:RES
7. Press the terminal keys – or + to reduce or increase the main output current value. Adjust the main output current to 100%.
8. Press any key other than the + or – keys to exit from interactive calibration mode.
6
M370046-01 B-15
Calibration and Troubleshooting
Calibration Procedure for Isolated Modes
The main output and the non-isolated mode must be calibrated first.
Isolated Voltage Monitoring Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 8.
To calibrate the isolated voltage monitoring:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the voltmeter to the isolated voltage monitoring output lines
(J3.5 - J3.6).
3. Set the Voltage APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV 4
4. Set the input source to local for voltage analog programming. The
SCPI command is:
SYST:REM:SOUR LOC
5. Set the main output voltage to 100% by sending the command:
SOUR:VOLT <ModelVolt> or use the rotary adjust/Enter control.
6. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:MON:ISOL
8. Press the terminal keys – or + to reduce or increase the monitoring value. Adjust the monitoring value displayed on the voltmeter that was setup in Step 1 to read as close as possible to 4.000 V.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
B-16 M370046-01
Calibration and Troubleshooting
Isolated Current Monitoring Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in steps 3 and 8.
To calibrate the isolated current monitoring:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the voltmeter to the Isolated monitoring output lines (J3.10 and J3.6).
3. Set the current APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source to local for voltage analog programming. the
SCPI command is:
SYST:REM:SOUR:CURR LOC
5. Set the main output voltage to 100% by sending the command:
SOUR:VOLT <ModelVolt> or use the rotary Adjust/Enter control.
6. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:MON:CURR:ISOL
8. Press the terminal keys – or + to reduce or increase the monitoring value. Adjust the monitoring value displayed on the voltmeter that was set up in Step 1 to read as close as possible to 4.000 V.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
6
M370046-01 B-17
Calibration and Troubleshooting
Isolated Voltage Programming of Voltage Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in step 3.
To calibrate the isolated voltage programming of voltage:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the input voltage source to the Isolated connector (J3.3 and
J3.6).
3. Set the Voltage APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV 4
4. Set the input source voltage to 4.000 V.
5. Set the input source as Voltage Isolated for Voltage. The SCPI command is:
SYST:REM:SOUR AVOL
6. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:ISOL
8. Press on the terminal keys – or + to reduce or increase the main output voltage value. Adjust the main output voltage to 100%.
9. Press any key other than the + or – keys to exit from interactive calibration mode.
B-18 M370046-01
Calibration and Troubleshooting
Isolated Resistive Programming of Voltage Calibration
Important: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating resistance level in step 3.
To calibrate the isolated resistive programming of voltage:
1. Disconnect the load and connect the voltmeter to the output.
2. Connect the 4.000 k Ω resistor to the isolated connector. One terminal to resistive programming of voltage (J3.8), and voltage programming of voltage (J3.3), and the other to common (J3.2).
3. Set the resistive APG level to 4 k Ω . The SCPI command is:
SYST:COMM:APR:LEV 4
4. Set input source as Resistive Isolated for Voltage Programming. The
SCPI command is:
SYST:REM:SOUR IAR
5. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
6. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:RES:ISOL
7. Press on the terminal keys – or + to reduce or increase the main output voltage value. Adjust the main output voltage to 100%.
8. Press any key than the + or – keys to exit from interactive calibration mode.
6
M370046-01 B-19
Calibration and Troubleshooting
Isolated Voltage Programming of Current Calibration
Important:: For maximum accuracy at a specific APG level. Follow the calibration procedure again but use the intended operating voltage level in step 3.
To calibrate the isolated voltage programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the input voltage source to the Isolated connector (J3.4 -
J3.6).
3. Set the Current APG level to 4 V. The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source voltage to 4.000 V.
5. Set the input source as Voltage Isolated for Current. The SCPI command is:
SYST:REM:SOUR:CURR IAV
6. Turn the main output to On by pressing the OUTPUT ENABLE Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
7. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:CURR:ISOL
8. Press the terminal keys – or + to reduce or increase the main output current value. Adjust the main output current to 100%.
9. Press any key other than the + or – keys to exit from the interactive calibration mode.
B-20 M370046-01
Calibration and Troubleshooting
Isolated Resistive Programming of Current Calibration
To calibrate the isolated resistive programming of current:
1. Short the main output with a shunt. Connect a multimeter to measure the voltage across the shunt.
2. Connect the 4.000 k Ω resistor to the isolated connector. One terminal to resistive programming of current (J3.7), and voltage programming of current (J3.3), and the other to common (J3.2).
3. Set the Resistive APG level to 4 k Ω . The SCPI command is:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source as Resistive Isolated for Current Programming.
The SCPI command is:
SYST:REM:SOUR:CURR IAR
5. Turn the main output On or send the command:
:OUTP ON
6. Enter the interactive calibration mode by sending the SCPI command:
CAL:OUTP:ANAL:CURR:RES:ISOL
7. Press the terminal keys – or + to reduce or increase the main output current value. Adjust the main output current to 100%.
8. Press any key other than the + or – keys to exit from the interactive calibration mode.
6
M370046-01 B-21
Calibration and Troubleshooting
Calibrating the Input Voltage APG Signal
The input voltage APG calibration is necessary to ensure accurate measurements when using the :MEAS:APR?
and :MEAS:APR:ISOL?
SCPI command queries to monitor the APG input signal.
Gain Calibration
To calibrate the VAP APG input gain:
1. Connect a voltmeter and a DC voltage source to the non-isolated voltage APG input lines (J1.9 and J1.7).
2. Turn the power supply On.
3. Set the Voltage APG level to 4 V.
Send the SCPI command: SYST:COMM:APR:LEV 4
4. Set the input source as Voltage analog APG. Send the SCPI command: SYST:REM:SOUR:VOLT AVOL
5. Set the voltage source attached to the non-isolated voltage APG input to 90% of the nominal voltage level, in this case 3.6 V.
6. Turn the output power on.
7. The power supply starts up in Constant Voltage mode.
8. Read the input voltage value from the voltmeter connected in step 1.
9. Type the SCPI input Voltage calibration command with voltage noted in step 8 as the parameter “data”.
For example, you would type :CAL:INP:ANAL 3.53
if you were reading 3.53 volts from the voltmeter.
Offset Calibration
Offset calibration of the power supply provides the best accuracy in lowrange input voltage.
To perform offset calibration:
1. Set the voltage source attached to the non-isolated Voltage APG input to 10% of the nominal voltage level, in this case 0.400 V.
2. Turn on the output power.
3. Read the input voltage value from the voltmeter connected in step 1 of the gain calibration.
B-22 M370046-01
Calibration and Troubleshooting
4. Type SCPI input Voltage calibration command with voltage noted in step 3 as the parameter “data”.
For example, you would type :CAL:INP:ANAL:CURR 0.43
if you read 0.43 volts from the voltmeter.
After performing offset calibration, it is highly recommended that you repeat gain calibration.
SCPI Command
[:] CALibration[<channel>]:INPut:ANALog[:VOLTage]
{<voltmeter reading in volts>}
Calibrating the Input Current APG Signal
The input voltage APG calibration is necessary to ensure accurate measurements when using the :MEAS:APR?
and :MEAS:APR:ISOL?
SCPI command queries to monitor the APG input signal.
Gain Calibration
To calibrate the CAP APG input gain calibration:
1. Connect a short across the power supply output.
2. Connect a voltmeter and a DC voltage source to the non-isolated current APG input lines (J1.10 and J1.7).
3. Turn the power supply On.
4. Set the Current APG level to 4 V. Send the SCPI command:
SYST:COMM:APR:LEV:CURR 4
5. Set the input source as Voltage analog APG. Send the SCPI command: SYST:REM:SOUR:CURR AVOL
6. Set the voltage source attached to the non-isolated current APG input to 90% of the nominal current level, in this case 3.6 V.
7. Turn the output power on.
8. The power supply starts up in Constant Current mode.
9. Read the input voltage value from the voltmeter connected in step 2.
10. Type the SCPI input current calibration command with voltage noted in step 9 as the parameter “data”.
For example, you would type :CAL:INP:ANAL:CURR 3.49 if you were reading 3.49 volts from the voltmeter.
6
M370046-01 B-23
Calibration and Troubleshooting
Offset Calibration
Offset calibration of the power supply provides the best accuracy in lowrange input current.
To perform offset calibration:
1. Set the voltage source attached to the non-isolated current APG input to 10% of the nominal current level, in this case 0.400 V.
2. Turn the output power on.
3. Read the input voltage value from the voltmeter connected in step 2 of the gain calibration.
4. Type SCPI input current calibration command with voltage noted in step 3 as the parameter “data”.
For example, you would type :CAL:INP:ANAL:CURR 0.43.
After performing offset calibration, it is highly recommended that you repeat gain calibration.
SCPI Command
[:]CALibration[<channel>]:INPut:ANALog:CURRent{<voltme ter reading in volts>}
B-24 M370046-01
Calibration and Troubleshooting
Storing and Loading Calibration Parameters
Xantrex recommends that you save all the calibration parameters in a text file so they can be reloaded in the event of a flash failure or a mistake in calibration.
To get the calibration data, execute the following commands and save the response in a text file:
The SCPI command (s) to download all the calibration data are:
[:]CALibration:PARameter[:OUTPut]
[:]CALibration:PARameter:APRogram?
[:]CALibration:PARameter:INPut?
The response to these commands are in the 488.2 Arbitrary Program
Block Data format.
If the calibration ever needs to be restored, you can execute the same commands and write the arbitrary block data response that was received in the query as the parameter.
For example, downloading the parameter data can be done from the hyper terminal as follows.
:cal:par?
#262#h2710,#h0000,#h2710,#h0000,#h2710,#h0000,#h2710,
#h0000,#h1AA4
:cal:par:apr?
#259#h7B,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h
7F,#h7F
:cal:par:inp?
#227#h2710,#h00,#h2710,#h00
To restore the XTR with a set of previously saved calibration values can be done as follows.
:cal:par
#262#h2710,#h0000,#h2710,#h0000,#h2710,#h0000,#h2710,#h0
000,#h1AA4
:cal:par:apr
#259#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h7F,#h
7F,#h7F
:cal:par:inp
#h227#h2710,#h00,#h2710,#h00
6
M370046-01 B-25
Calibration and Troubleshooting
By saving and reloading the calibration parameters using these commands, you can calibrate the XTR for maximum accuracy for a specific load and then switch loads and load a calibration set that is accurate at maximum accuracy for the new load.
Restore Factory Calibration
Important: Factory calibration is not the same as the shipped calibration.
Using this command will likely necessitate recalibrating all controls.
To restore factory calibration, use the SCPI command for returning the power supply to factory calibration settings.
The SCPI Command (s) for these instructions are:
[:]CALibration:RESTore
B-26 M370046-01
Calibration and Troubleshooting
User Diagnostics
If your power supply is not performing as described in this Manual, read through the procedures and checks in this chapter before calling your service technician. These procedures are limited to operator level functions only. They do not require cover-off servicing of the unit.
Emergency Shutdown
In an emergency, carry out these steps:
1. Shut the power supply OFF immediately.
2. Disconnect the mains supply.
3. Disconnect the power supply from the load.
Unusual or Erratic Operation
If the power supply displays any unusual or erratic operation, follow these steps:
1. Shut the power supply OFF immediately.
2. Disconnect the power supply from the load and external programming.
3. Test the power supply with no load, running the tests in “Step 5:
Performing Functional Tests” on page 2–8.
4. If the tests show that the power supply is functioning normally, check all load, programming, and monitoring connections and circuits.
5. Check the AC input for correct voltage and frequency.
If the problem is not solved after you have followed this procedure, or if the unit fails to operate correctly upon retesting, call your service technician.
6
M370046-01 B-27
Calibration and Troubleshooting
Troubleshooting for Operators
Refer to Table B-1 to ensure that the power supply is configured and
connected for normal operation. If you require any further
troubleshooting assistance, call your service technician. See “Contact
Table B-1 Troubleshooting
Symptom
The power supply is not operating. FLA FAIL is displayed.
Check
Flash memory check sum error.
Further Checks and Corrections
Important: The power supply will boot with default options and calibration values for the 6 V-110 A model.
B-28 M370046-01
B
Error Messages
Appendix B, Error Messages, provides information on the
error messages which may appear. Errors are placed in a queue as they are detected.
Error Messages
Error Messages
Errors are placed in a queue as they are detected. The queue works on a first in, first out (FIFO) basis. If the queue overflows, the last error in the queue is replaced with error –350, “Queue Overflow”. When all errors have been read from the queue, further error queries return 0, “No error”.
The error queue is cleared when any of the following occur (IEEE 488.2, section 11.4.3.4):
• Upon receipt of a *CLS command
• Upon reading the last item from the queue
B-2 M370046-01
Error Messages
Command Error List
An error in the range [-199, -100] indicates that an IEEE 488.2 syntax error has been detected by the instrument’s parser. The occurrence of any error in this class causes the command error bit (bit 5) in the Event Status
Register to be set.
Table B-1 Command Error List
Error Code Error Message Description
-100 Command error
This is the generic syntax error
-102
Syntax Error
An unrecognized command or data type was encountered; for example, a string was received when the device does not accept strings.
-108 Parameter not Allowed
More parameters were received than expected for the header; for example, the *SRE common command only accepts one parameter, so receiving *SRE 0,1 is not allowed.
-109
-110
-113
-121
-140
-150
-151
Missing Parameter
Fewer parameters were received than required for the header; for example, the *SAV common command requires one parameter, so receiving *SAV is not allowed
.
Command header error
An error was detected in the header.
Undefined header
The header is syntactically correct, but it is undefined for this specific device; for example, *XYZ is not defined for any device.
Invalid character in number
An invalid character for the data type being parsed was encountered; for example, an alpha in a decimal numeric or a
“9" in octal data.
Character data error
This error is generated when parsing a character data element.
String data error
This error is generated when parsing a string data element fails.
Invalid string data
A string data element was expected, but was invalid for some reason (see IEEE 488.2
, 7.7.5.2); for example, an END message was received before the terminal quote character.
B
M370046-01 B-3
Error Messages
Execution Error List
An error in the range [-299, -200] indicates that an error has been detected by the instrument’s execution control block. The occurrence of any error in the class causes the execution error bit (bit 4) in the Event Status
Register to be set.
Execution errors are reported by the device after rounding and expression evaluation operations have taken place.
Table B-2 Execution Error List
Error Code Error Message Description
-200
-203
-220
-221
Execution Error
This is the generic syntax error for devices that cannot detect more specific errors. This code indicates only that an Execution
Error as defined in IEEE 488.2
, 11.5.1.1.5 has occurred.
Command protected
Indicates that a legal password-protected program command or query could not be executed because the command was disabled. Check the calibration state.
Parameter error
Indicates that a program data element related error has occurred
Setting conflict
Indicates that a legal program data element was parsed, but could not be executed due to the current power supply state.
The following list is not exhaustive but does cover some of the more common conditions that may contribute to this error:
• OVP/UVP Set Points —The OVP and UVP limit the setting of the voltage set point so that you cannot accidentally trigger these alarms by changing the set point outside of their range. Conversely, setting the OVP set point to be less than the voltage set point will also trigger this error.
• Changing the Set Point while in APG mode —The user will be unable to change the set point while APG is being used to control that parameter: voltage or current.
• Autosequence Programming —Various conflicts can occur while using Autosequence programming; for example, using the trigger command while the program is running will result in this error.
• Calibration mode —When in calibration mode, certain settings will cause an error.
B-4 M370046-01
Error Messages
Table B-2 Execution Error List
Error Code Error Message Description
-222
-224
-291
Data out of range
Indicates that a legal program data element was parsed but could not be executed because the interpreted value was outside the legal range as defined by the device (see IEEE
488.2
, 11.5.1.1.5)
Illegal parameter value
Used where the exact value, from a list of possible values, was expected.
Out of memory
Used when the Autosequence programming buffer is full.
Device-Specific Error List
An error in the range [-399, 300] or [1, 32767] indicates that the instrument has detected an error which is not a command error, a query error, or an execution error; some device operations did not properly complete, possibly due to an abnormal hardware or firmware condition.
These codes are also used for self-test response errors. The occurrence of any error in the class causes the device-specific error bit (bit 3) in the
Event Status Register to be set.
Table B-3 Device-Specific Error List
Error Code Error Message Description
-300
-350
-360
-363
-365
Device-specific error.
Indicates that the power supply could not complete the operation due to some condition of the power supply.
Queue Overflow
A specific code entered into the queue in lieu of the code that caused the error. This code indicates that there is no room in the queue and an error occurred but was not recorded.
Communication error
This is the generic communication error for devices.
Input buffer overrun
Software or hardware input buffer on serial port overflows with data caused by improper or nonexistent pacing.
Time out error
This is a generic device-dependent error.
B
M370046-01 B-5
Query Error List
An error number in the range [-499, -400] indicates that the output queue control of the instrument has detected a problem with the message exchange protocol described in IEEE 488.2, chapter 6. The occurrence of any error in this class causes the query error bit (bit 2) in the Event Status Register to be set.
Table B-4 Query Error List
Error Code Error Message Description
-400 Query Error
This is the generic query error for the power supply, used only when the other types of errors do not apply.
B-6
C
Specifications
Appendix C, Specifications, provides the product specifications
for the XTR 850 Watt Series Programmable DC Power Supply.
• These specifications are represented over the full operating temperature range.
• Nominal line input voltage should be assumed unless otherwise stated.
• All sense lines are configured for local operation by default.
• Except where otherwise noted, specifications apply to single unit operation only.
• Specifications are subject to change without notice.
Specifications
C-2 M370046-01
Electrical Specifications for XTR 850 Watt
C
M370046-01 C-3
Specifications
C-4 M370046-01
Common Specifications for All Models
C
M370046-01 C-5
Specifications
C-6 M370046-01
.30 in.
7.6 mm
Common Specifications for All Models
18.5 in.
469.9 mm
17. 99 in.
456.9 mm
17.32 in.
439.9 mm
18.9 in.
479.9 mm
.60 in.
15.2 mm
.26 in.
6.5 mm x 2
1.98 in.
50.2 mm
1.61 in
40.9 mm
1.72 in.
43.6 mm
1.05 in.
26.8 mm
8.4 in.
214.2 mm
Figure C-1 XTR 850 Watt Mechanical Dimensions: 6 to 40 V Models
Optional DC output cover
C
M370046-01 C-7
Specifications
17.6 in.
447.5 mm
8.4 in.
214.2 mm
0.28 in.
7.2 mm
0.22 in.
5.5 mm
1.7 in.
43.6 mm
Figure C-2 XTR 850 Watt Mechanical Dimensions: 60 V to 600 V Models
C-8 M370046-01
Warranty and Product Information
Warranty
What does this warranty cover? This Limited Warranty is provided by Xantrex Technology Inc.
("Xantrex") and covers defects in workmanship and materials in your XTR 850 Watt Series
Programmable DC Power Supply. This warranty period lasts for five (5) years from the date of purchase at the point of sale to you, the original end user customer. You require proof of purchase to make warranty claims.
What will Xantrex do? Xantrex will, at its option, repair or replace the defective product free of charge, provided that you notify Xantrex of the product defect within the Warranty Period, and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this
Limited Warranty.
Xantrex will, at its option, use new and/or reconditioned parts in performing warranty repair and building replacement products. Xantrex reserves the right to use parts or products of original or improved design in the repair or replacement. If Xantrex repairs or replaces a product, its warranty continues for the remaining portion of the original Warranty Period or 90 days from the date of the return shipment to the customer, whichever is greater. All replaced products and all parts removed from repaired products become the property of Xantrex.
Xantrex covers both parts and labor necessary to repair the product, and return shipment to the customer via a Xantrex-selected non-expedited surface freight within the contiguous United States and Canada.
Alaska and Hawaii are excluded. Contact Xantrex Customer Service for details on freight policy for return shipments outside of the contiguous United States and Canada.
How do you get service? If your product requires troubleshooting or warranty service, contact your merchant. If you are unable to contact your merchant, or the merchant is unable to provide service, contact Xantrex directly at:
Telephone: 1 800 733 5427 (toll free North America)
1 858 450 0085(direct)
Fax:
Email:
1 858 458 0267 [email protected]
Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual. For some products, Xantrex maintains a network of regional
Authorized Service Centers. Call Xantrex or check our website www.programmablepower.com to see if your product can be repaired at one of these facilities.
M370046-01 WA-1
Warranty and Return
What proof of purchase is required? In any warranty claim, dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex.
Proof of purchase may be in any one of the following forms:
• The dated purchase receipt from the original purchase of the product at point of sale to the end user, or
• The dated dealer invoice or purchase receipt showing original equipment manufacturer (OEM) status, or
• The dated invoice or purchase receipt showing the product exchanged under warranty
What does this warranty not cover? This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal, installation, or troubleshooting of the customer's electrical systems. This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to: a) the product if it has been misused, neglected, improperly installed, physically damaged or altered, either internally or externally, or damaged from improper use or use in an unsuitable environment; b) the product if it has been subjected to fire, water, generalized corrosion, biological infestations, or input voltage that creates operating conditions beyond the maximum or minimum limits listed in the Xantrex product specifications including high input voltage from generators and lightning strikes; c) the product if repairs have been done to it other than by Xantrex or its authorized service centers
(hereafter "ASCs"); d) the product if it is used as a component part of a product expressly warranted by another manufacturer; e) the product if its original identification (trade-mark, serial number) markings have been defaced, altered, or removed.
Disclaimer
Product
THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN
CONNECTION WITH YOUR XANTREX PRODUCT AND IS, WHERE PERMITTED BY LAW, IN LIEU OF ALL OTHER
WARRANTIES, CONDITIONS, GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND LIABILITIES, EXPRESS OR
IMPLIED, STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT, HOWEVER ARISING (WHETHER
BY CONTRACT, TORT, NEGLIGENCE, PRINCIPLES OF MANUFACTURER'S LIABILITY, OPERATION OF LAW,
CONDUCT, STATEMENT OR OTHERWISE), INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR
CONDITION OF QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED
UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD
STIPULATED UNDER THIS LIMITED WARRANTY.
IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES, LOSSES, COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING
WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND, ANY LOSS OR DAMAGE TO PROPERTY, ANY
PERSONAL INJURY, ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE, OR THE
INCORRECT INSTALLATION, INTEGRATION OR OPERATION OF THE PRODUCT.
WA-2 M370046-01
Warranty and Return
Exclusions
If this product is a consumer product, federal law does not allow an exclusion of implied warranties. To the extent you are entitled to implied warranties under federal law, to the extent permitted by applicable law they are limited to the duration of this Limited Warranty. Some states and provinces do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages, so the above limitation(s) or exclusion(s) may not apply to you. This Limited Warranty gives you specific legal rights. You may have other rights which may vary from state to state or province to province.
Return Material Authorization Policy
Before returning a product directly to Xantrex you must obtain a Return Material Authorization (RMA) number and the correct factory "Ship To" address. Products must also be shipped prepaid. Product shipments will be refused and returned at your expense if they are unauthorized, returned without an
RMA number clearly marked on the outside of the shipping box, if they are shipped collect, or if they are shipped to the wrong location.
When you contact Xantrex to obtain service, please have your instruction manual ready for reference and be prepared to supply:
• The serial number of your product
• Information about the installation and use of the unit
• Information about the failure and/or reason for the return
• A copy of your dated proof of purchase
Record these details in “Information About Your System” on page WA–4.
M370046-01 WA-3
Warranty and Return
Return Procedure
1. Package the unit safely, preferably using the original box and packing materials. Please ensure that your product is shipped fully insured in the original packaging or equivalent. This warranty will not apply where the product is damaged due to improper packaging.
2. Include the following:
• The RMA number supplied by Xantrex Technology Inc. clearly marked on the outside of the box.
• A return address where the unit can be shipped. Post office boxes are not acceptable.
• A contact telephone number where you can be reached during work hours.
• A brief description of the problem.
3. Ship the unit prepaid to the address provided by your Xantrex customer service representative.
If you are returning a product from outside of the USA or Canada In addition to the above, you MUST include return freight funds and are fully responsible for all documents, duties, tariffs, and deposits.
If you are returning a product to a Xantrex Authorized Service Center (ASC) A Xantrex return material authorization (RMA) number is not required. However, you must contact the ASC prior to returning the product or presenting the unit to verify any return procedures that may apply to that particular facility.
Out of Warranty Service
If the warranty period for your XTR 850 Watt Series Programmable DC Power Supply has expired, if the unit was damaged by misuse or incorrect installation, if other conditions of the warranty have not been met, or if no dated proof of purchase is available, your unit may be serviced or replaced for a flat fee.
To return your XTR 850 Watt Series Programmable DC Power Supply for out of warranty service, contact Xantrex Customer Service for a Return Material Authorization (RMA) number and follow the
other steps outlined in “Return Procedure” on page WA–4.
Payment options such as credit card or money order will be explained by the Customer Service
Representative. In cases where the minimum flat fee does not apply, as with incomplete units or units with excessive damage, an additional fee will be charged. If applicable, you will be contacted by
Customer Service once your unit has been received.
Information About Your System
As soon as you open your XTR 850 Watt Series Programmable DC Power Supply package, record the following information and be sure to keep your proof of purchase. See “Product Numbers (FGAs)” on page iii.
❐ Serial Number
❐ Purchased From
❐ Purchase Date
_________________________________
_________________________________
_________________________________
WA-4 M370046-01
Index
Numerics
7 segment font, use of
9-position mode control knob illustrated
positions described
A
AC input connector, 850 W defined
illustrated
active power factor correction
alarm conditions
ALARM LED clearing
illuminated
latched
alarm output latching, defined
alarm, masked, defined
analog programming defined
lines
approvals
EMC
safety
automatic mode crossover, described
C calibration exiting the mode
items
loading parameters
performing via SCPI commands
restoring factory calibration
saving parameters in a text file
storing parameters
command string punctuation not sent
M370046-01 command string punctuation blank spaces
colons
commas
semicolons
constant current mode, described
constant voltage mode, described
current configuration memory settings
current share command
current sharing, defined
D
DC output connector illustrated
short circuit protection of
DC output connectors, 850 W, hole diameter
display behavior of
font
front panel for 850 W
output current
output current, illustrated
output voltage
output voltage, illustrated
E
ENET, cable specifications
error messages, execution errors
execution errors, list of
F foldback disabling
resetting activated
setting delay time
setting protection
foldback mode, defined
IX–1
Index front panel display
7 segment font
illustrated
G gain calibration, effect of
gain error, described
I
IEEE
GPIB cable
Std. 488.1 1987
Std. 488.1999 2 17.1.2
Std. 488.2 1992
Std. 488.2 1999 12.5.2
Std. 488.2 1999 12.5.3
Std. 488.2 Register Model
Std. 488.2 registers
Std. 488.2 syntax error
inactivity timeout default
described
Information about Your System form
L local lockout, described
local operation coarse adjustment mode
fine adjustment mode
M menu system navigating
,
select and set model procedure
setting VOL and CUR modes
N normal display mode, described
O offset calibration, effect of
offset error, described
P parameter types
boolean
discrete
numeric
string
parameters, units of measure and multipliers
power supply proof of purchase
purchase date
serial number
S
SCPI
command hierarchy
command structure
command summary
command tree
common commands
conformance information
described
minimum and maximum
parameter types
requirements
terminating characters
using queries
select and set mode, described
standard operation, described
T
TIA/EIA-232 F
tracking mode, described
U user setting memory locations
IX–2 M370046-01
described
number available
stored values
W warranty out of warranty service
terms and conditions
X
Xantrex contact information
Index
M370046-01 IX–3
IX-4
Xantrex Technology Inc.
1 800 733 5427 (toll free North America)
1 858 450 0085(direct)
1 858 458 0267 [email protected]
www.programmablepower.com
M370046-01 Printed in USA
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