975-0713-01-01_Rev-A
Conext™ XW
Inverter/Charger
Conext XW+ 7048 E
Conext XW+ 8548 E
Owner’s Guide
www.schneider-electric.com
Conext™ XW
Inverter/Charger
Owner’s Guide
www.schneider-electric.com
Copyright and Contact
Copyright © 2008-2014 Schneider Electric. All Rights Reserved.
All trademarks are owned by Schneider Electric Industries SAS or its affiliated companies.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, SELLER
(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 CONTENT IS
CONTAINED WITH THE ENGLISH LANGUAGE VERSION WHICH IS POSTED AT WWW.SCHNEIDER-ELECTRIC.COM.
Date and Revision
March 2014 Revision A
Document Part Number
975-0713-01-01
Product Part Numbers
865-8548-61 - Conext XW+ 8548 E
865-7048-61 - Conext XW+ 7048 E
Contact Information
www.schneider-electric.com
Please contact your local Schneider Electric Sales Representative or visit our website at:
http://www.schneider-electric.com/sites/corporate/en/support/operations/local-operations/local-operations.page
Information About Your System
As soon as you open your product, record the following information and be sure to keep your proof of purchase.
Serial Number
_________________________________
Product Number
_________________________________
Purchased From
_________________________________
Purchase Date
_________________________________
About This Guide
Purpose
The purpose of this Owner’s Guide is to provide the information and procedures
necessary for configuring, operating, maintaining, and troubleshooting the
Schneider Electric Conext XW+ Inverter/Charger
Scope
This Guide includes information about monitoring and configuring the Conext
XW+ Inverter/Charger.
This Guide provides guidelines, detailed setup information, and information
about operating and troubleshooting the unit. It does not provide installation
procedures or details about particular brands of batteries, photoelectric cells, or
generators. Consult the equipment manufacturers for this information.
Audience
This Guide is intended for anyone who needs to operate, configure, and
troubleshoot the Conext XW+ Inverter/Charger. Certain configuration tasks
should only be performed by qualified personnel in consultation with your local
utility and/or an authorized dealer. Electrical equipment should be installed,
operated, serviced, and maintained only by qualified personnel. Servicing of
batteries must only be performed or supervised by qualified personnel with
knowledge of batteries and their required precautions. Qualified personnel have
training, knowledge, and experience in:
•
Installing electrical equipment
•
Applying applicable installation codes
•
Analyzing and reducing the hazards involved in performing electrical work
•
Installing and configuring batteries
•
Selecting and using Personal Protective Equipment (PPE)
No responsibility is assumed by Schneider Electric for any consequences arising
out of the use of this material.
Organization
This Guide is organized into four chapters and two appendices.
Chapter 1, “Introduction”, describes the operating features of the Conext XW+
Inverter/Charger.
iii
About This Guide
Chapter 2, “Monitoring Operation”, contains information about monitoring Conext
XW+ Inverter/Charger operation using the inverter information panel or the
Conext System Control Panel.
Chapter 3, “Configuration” explains how to navigate through the Conext System
Control Panel menus and configure the Conext XW+ Inverter/Charger.,
Chapter 4, “Troubleshooting”, contains information and procedures for identifying
and solving possible problems with the Conext XW+ Inverter/Charger.
Appendix A, “Specifications” provides the electrical and mechanical
specifications for the Conext XW+ Inverter/Charger.
Appendix B contains the default configuration settings and ranges for the Conext
XW+ Hybrid Inverter/Charger. Configuration settings can be viewed and
changed using the Conext System Control Panel.
Related Information
For information about installing the Conext XW+ Inverter/Charger, see the Conext
XW+ Inverter/Charger Installation Guide (975-0714-01-01).
For more information about Schneider Electric as well as its products and
services, visit www.schneider-electric.com/solar.
iv
975-0713-01-01
Important Safety Instructions
READ AND SAVE THESE INSTRUCTIONS - DO NOT
DISCARD
This guide contains important safety instructions for the Conext XW+ Inverter/
Charger that must be followed during operation and troubleshooting. Read and
keep this Owner’s Guide for future reference.
Read these instructions carefully and look at the equipment to become familiar
with the device before trying to install, operate, service or maintain it. The
following special messages may appear throughout this bulletin or on the
equipment to warn of potential hazards or to call attention to information that
clarifies or simplifies a procedure.
The addition of either symbol to a “Danger” or “Warning” safety label
indicates that an electrical hazard exists which will result in personal
injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to physical injury. The safety
alert symbol shall not be used with this signal word.
v
Safety Information
1. Before using the inverter, read all instructions and cautionary markings on the
unit, the batteries, and all appropriate sections of this manual.
2. Use of accessories not recommended or sold by the manufacturer may result in a risk of
fire, electric shock, or injury to persons.
3. The inverter is designed to be permanently connected to your AC and DC electrical
systems. The manufacturer recommends that all wiring be done by a certified technician
or electrician to ensure adherence to the local and national electrical codes applicable
in your jurisdiction.
4. To avoid a risk of fire and electric shock, make sure that existing wiring is in good
condition and that wire is not undersized. Do not operate the inverter with damaged or
substandard wiring.
5. Do not operate the inverter if it has been damaged in any way.
6. This unit does not have any user-serviceable parts. Do not disassemble the inverter
except where noted for connecting wiring and cabling. See your warranty for
instructions on obtaining service. Attempting to service the unit yourself may result in a
risk of electrical shock or fire. Internal capacitors remain charged after all power is
disconnected.
7. To reduce the risk of electrical shock, disconnect both AC and DC power from the
inverter before attempting any maintenance or cleaning or working on any components
connected to the inverter. Putting the unit in Standby mode will not reduce this risk.
8. The inverter must be provided with an equipment-grounding conductor connected to
the AC input ground.
9. Do not expose this unit to rain, snow, or liquids of any type. This product is designed for
indoor use only. Damp environments will significantly shorten the life of this product and
corrosion caused by dampness will not be covered by the product warranty.
10. To reduce the chance of short-circuits, always use insulated tools when installing or
working with this equipment.
11. Remove personal metal items such as rings, bracelets, necklaces, and watches when
working with electrical equipment.
vi
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices. See NFPA 70E or CSA Z462.
• This equipment must only be installed and serviced by qualified electrical
personnel.
• Never operate energized with covers removed
• Energized from multiple sources. Before removing covers identify all
sources, de-energize, lock-out, and tag-out and wait 2 minutes for circuits to
discharge
• Always use a properly rated voltage sensing device to confirm all circuits are
de-energized.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Remove watches, rings, or other metal objects.
• This equipment must only be installed and serviced by qualified electrical
personnel.
• Keep sparks and flames away from the batteries.
• Use tools with insulated handles.
• Wear protective glasses, gloves and boots.
• Do not lay tools or other metal parts on top of batteries.
Failure to follow these instructions will result in death or serious injury.
975-0713-01-01
vii
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Battery Circuit Breakers must be installed according to the specifications
and requirements defined by Schneider Electric.s.
• Servicing of batteries must only be performed by qualified personnel
knowledgeable about batteries and the required precautions. Keep
unqualified personnel away from batteries.
• Disconnect the charging source prior to connecting or disconnecting battery
terminals.
Failure to follow these instructions will result in death or serious injury.
Limitations on Use
WARNING
LIMITATIONS ON USE
The Conext XW+ Inverter/Charger is not intended for use in connection with
life support systems or other medical equipment or devices.
Failure to follow these instructions can result in death or serious injury.
Explosive Gas Precautions
WARNING
EXPLOSION HAZARD
This equipment is not ignition protected. To prevent fire or explosion, do not
install this product in locations that require ignition-protected equipment. This
includes any space containing gasoline-powered machinery, fuel tanks, as
well as joints, fittings, or other connections between components of the fuel
system.
Failure to follow these instructions can result in death or serious injury.
Working in the vicinity of lead acid batteries is dangerous. Batteries generate explosive
gases during normal operation. Therefore, you must read this Guide and follow the
instructions exactly before installing or using your inverter/charger.
To reduce the risk of battery explosion, follow these instructions and those published by
the battery manufacturer and the manufacturer of the equipment in which the battery is
installed.
viii
975-0713-01-01
FCC Information to the User
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
975-0713-01-01
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and the receiver.
•
Connect the equipment to a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
ix
x
975-0713-01-01
Contents
Important Safety Instructions
1
Introduction
Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2
Performance Highlights - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2
Distinguishing Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2
Xanbus™ Network Communications Protocol - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2
Available Conext XW+ Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3
Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3
Bidirectional Theory of Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3
Surge Performance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6
Islanding Protection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6
AC Coupling - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7
Multi-unit Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8
Auxiliary Output - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10
Transfer Relay - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10
K1 and K2 relay - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10
Monitoring the Conext XW+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10
Conext XW+ Information Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10
Conext System Control Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–11
2
Monitoring Operation
Monitoring Operation with the Inverter Information Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2
Monitoring AC Input Status - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2
Monitoring Conext XW+ Status - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3
Monitoring Charger Status - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4
Monitoring Events - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5
Equalizing Batteries - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5
Using Startup/Shutdown/Standby Modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6
Monitoring Battery Level - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8
Reading the Display Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8
Monitoring Operation with the Conext SCP - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9
Conext System Control Panel Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9
Using the Standby Button - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–10
Conext System Control Panel Navigation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–10
Viewing the Conext SCP Home Screens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–10
Viewing Other Screens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–12
Reading the System Status Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–13
Reading the Conext XW+ Home Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–13
Reading the Meters Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–15
xi
Contents
3
Configuration
Using the Conext System Control Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2
Conext XW+ Setup Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2
Setting the Time and Date - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3
Using the Setup Menus - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4
Inverter Settings Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–7
Using the Low Battery Cut Out and LBCO Delay Settings - - - - - - - - - - - - - - - - - - - - - - - - - - 3–8
Using Search Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–8
Charger Settings Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–9
Battery Charger Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–11
Multi-Stage Charging Process - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–11
Equalize Charging - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–16
Equalization Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–18
Custom Battery Settings Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–19
AC Input Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–21
Grid Support Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–22
Prioritizing and Managing Energy Sources with Advanced Features - - - - - - - - - - - - - - - - - 3–23
Grid Support - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–24
Grid Support and Battery Charging - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–24
Charger Block - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–26
Peak Load Shaving (PLS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–27
Time-of-Use Metering - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–27
Self-Consumption - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–28
Generator Support Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–28
Auxiliary Output Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–30
Multi-Unit Config Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–32
Setting the Device Name - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–34
Setting the Device Number - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–35
Three-Phase Configuration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–36
Connections Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–38
Copying Settings From Another Unit- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–39
Restoring the Conext XW+ to Factory Default Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–40
Using the Advanced Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–41
4
Troubleshooting
General Troubleshooting Guidelines- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Inverter Applications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Resistive Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Motor Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Problem Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Very Small Loads - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Fluorescent Lights and Power Supplies - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Clocks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Searching - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
xii
4–2
4–2
4–3
4–3
4–3
4–3
4–3
4–3
4–4
975-0713-01-01
Contents
Inverter Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4
Battery Charger Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–7
Faults and Warnings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–10
Warning Messages - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–10
Warning Types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–11
Fault Messages - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–14
Fault Types - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–14
Inverter Operation After Faults - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–15
A
Specifications
Electrical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–2
Conext XW+ Overload Capability - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–3
Output Power Versus Ambient Temperature - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–4
Conext XW+ Efficiency - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–4
Inverting Efficiency (Typical) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–4
Charging Efficiency (Typical) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–5
Charging Efficiency Power Factor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–5
Mechanical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–6
Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–8
Regulatory Approvals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–8
B Default Settings
Default Settings and Ranges - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B–2
Inverter Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–3
Charger Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–3
Custom Battery Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–4
AC Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–4
Grid Support Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–5
Gen Support Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–5
Aux Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–6
Connections Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -B–6
Index - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
975-0713-01-01
xiii
xiv
1
Introduction
Chapter 1, “Introduction”, describes the
operating features of the Conext XW+
Inverter/Charger.
Topics in this chapter include:
• “Features” on page 1–2
• “Operation” on page 1–3
Introduction
Features
The Conext XW+ is a modular building block sine-wave inverter/charger that can
be used for residential and commercial battery based off-grid, grid backup, and
grid interactive applications.
The Conext XW+ is a self-contained DC to AC inverter, battery charger, and
integrated AC transfer switch. It is configurable in a hybrid system to operate with
generators and renewable energy sources. These configurations are capable of
extending battery based off-grid/backup autonomy.
Performance Highlights
•
Excellent load starting with high 30-minute and 5-second power.
•
Off-grid AC Coupling with PV inverters using frequency power curtailment
method.
•
Operation in environments up to 70°C.
•
Conversion of DC energy to AC energy for export to the utility grid.
•
Power factor corrected charging minimizes AC current required for charging.
•
True sine wave output.
•
Reactive power production.
Distinguishing Features
•
Grid-interactive feature set enables time management and prioritization of
energy sources and power conversion to support advanced modes of
operation such as load shifting, self consumption and peak load shaving.
•
Dual AC input connections with 60 A automatic transfer switch integrates
both utility grid and generator.
•
Generator Support functionality assists small generators with heavy loads.
•
Auxiliary port assist with relay switching of external devices such as battery
room fans, diversion loads and generators.
•
Configurable battery parameters for customized battery charging.
•
Field serviceable boards and components.
Xanbus™ Network Communications Protocol
The Conext XW+ uses Xanbus™, a network communications protocol developed
by Schneider to communicate with other Xanbus-enabled devices. You can
configure and monitor the Conext XW+ and other Xanbus-enabled devices in the
system using the Conext System Control Panel (part number 865-1050-01) or
Conext ComBox (part number 865-1058).
1–2
975-0713-01-01
Operation
Available Conext XW+ Accessories
Accessory
Part Number
Conext XW+ Power Distribution Panel
865-1015-01
Conext XW+ Power Distribution Panel
(Without AC Breakers)
865-1014-01
Conext XW+ Conduit Box
865-1025-01
Conext XW+ Connection Kit for INV2
INV3 PDP
865-1020-02
Conext System Control Panel
865-1050-01
Conext Automatic Generator Start
865-1060-01
Conext MPPT 60 150 Solar Charge
Controller
865-1030-1
Conext MPPT 80 600 Solar Charge
Controller
865-1032
Conext ComBox
865-1058
Conext Battery Monitor
865-1080-01
Conext XW+ PDP 120/240V 60A
Breaker Kit
865-1215-01
Conext XW+ PDP 3-Phase 60A
Breaker Kit
865-1315-01
Operation
Bidirectional Theory of Operation
The Conext XW+ is a grid forming device consisting of a bidirectional inverter/
charger. It is capable of inverting DC power into AC power and controlling the
voltage and frequency of its inverter output. It will power external loads attached
to AC OUT (See Figure 1-2, “Inverting of DC to AC Connected to AC OUT” on
page 1–4).
The Conext XW+ is also capable of charging external batteries by converting AC
power into DC power (See Figure 1-3, “Charging External Batteries and
Supplying AC Out with AC Pass-through from AC1 Grid ” on page 1–5). The
Conext XW+ accepts AC power through connection AC2 for charging batteries,
usually from a generator (See Figure 1-4, “Charging External Batteries and
Supplying AC Out with AC Pass-through from AC2 Generator” on page 1–5).
The Conext XW+ will convert externally sourced DC power into AC power for
export to the utility grid attached to its AC1 connection (See Figure 1-5,
“Converting Excess Available DC power for Export to Utility Grid (AC1) and AC
Out” on page 1–6).
The Conext XW+ has an internal automatic transfer switch (K1, K2) which allows
either AC1 or AC2 to be connected to the inverter input, but not both at the same
time (See Figure 1-1, “Connection Points and Major Power Conversion
Components of Conext XW+ ” on page 1–4). This allows shared AC energy
during charging or to directly pass through from AC1, or AC2, to AC Out.
975-0713-01-01
1–3
Introduction
Through firmware control over power conversion and the management of K1 and
K2, Conext XW+ can facilitate advanced interaction with the utility grid to
optimize the utilization of renewable and non-renewable energy sources.
Because the Conext XW+ is a device capable of forming an AC grid signal (AC
voltage and frequency) it is also ideal for use off-grid.
The red arrows in the diagrams below represent the power flow in their respective
modes of operation. These modes and many other special functions will be
explained throughout this manual.
AC1
K1
AC2
K2
ACOUT
AC Interface Board
AC Transformer
Bidirectional AC/DC
power block
Figure 1-1 Connection Points and Major Power Conversion Components of
Conext XW+
AC1
ACOUT
AC2
Figure 1-2 Inverting of DC to AC Connected to AC OUT
1–4
975-0713-01-01
Operation
AC1
ACOUT
AC2
Figure 1-3 Charging External Batteries and Supplying AC Out with AC Passthrough from AC1 Grid
AC1
ACOUT
AC2
Figure 1-4 Charging External Batteries and Supplying AC Out with AC Passthrough from AC2 Generator
975-0713-01-01
1–5
Introduction
AC1
ACOUT
AC2
Figure 1-5 Converting Excess Available DC power for Export to Utility Grid (AC1)
and AC Out
AC1
ACOUT
AC2
Figure 1-6 AC Pass-through
Surge Performance
Unlike many other inverters, the Conext XW+ helps stop voltage from sagging
dramatically during surge conditions. The Conext XW+ handles surges of over
twice its rated output power with only a minimal drop in output voltage for limited
periods of time.
Islanding Protection
Islanding protection is an essential safety feature that helps reduce harm to those
working on the utility grid from a distributed energy source such as the Conext
XW+. Islanding protection also helps to prevent loads connected to the Conext
XW+ from being damaged by a fluctuating utility grid input. The Conext XW+
1–6
975-0713-01-01
Operation
uses proprietary positive feedback control to achieve anti-islanding operation
while maintaining low total harmonic distortion at the grid connection. Default
software settings are programmed into each Conext XW+ at the factory so that
they comply with applicable safety regulations.
In some instances it may be desirable from both a utility and a customer point of
view to adjust the default anti-islanding settings. For example, the Conext XW+
may experience “nuisance trips” if the grid is weak and the voltage falls outside
the allowable range specified by regulations. It may be difficult for a utility to
adjust the grid to stop this problem. With permission from the utility, the factory
settings may be changed to allow the Conext XW+ to operate over a wider grid
voltage range. These settings must only be changed by qualified service
personnel using a special software application (Conext Configuration Tool, Order
# 865-1155-01) provided by the manufacturer.
While exporting energy, the Conext XW+ continuously monitors the utility grid
voltage and frequency. If the grid voltage or frequency move beyond the Conext
XW+ default ranges (for example, during a power surge or outage) the Conext
XW+ stops exporting energy through AC1 and disconnects from the utility. If
disconnected due to a grid voltage disturbance, five minutes is the nonadjustable minimum reconnect time during which the Conext XW+ does not
export energy through AC1 to the grid. The Fault light on the Conext XW+
information panel will indicate a utility fault. No fault code appears on the threecharacter display because the fault is with the utility grid, not with the Conext
XW+.
In addition to the information panel, the Conext XW+ indicates a utility fault with
the Fault light and also displays a fault message on screen (faults F23 to F40 are
utility faults—see Figure , “Fault Messages” on page 4–14). The fault cannot be
manually cleared. Utility faults will clear automatically when the utility grid voltage
and frequency return to within the ranges programmed into the Conext XW+. If
grid support is enabled and the utility voltage and frequency come back within
tolerance, the Conext XW+ information panel displays a countdown timer for five
minutes until the Conext XW+ can start interacting with the grid again.
AC Coupling
Off-grid AC Coupled system architecture is often used to create a stand-alone
grid. Commonly this means that PV inverters are connected to the output of a
battery-based inverter/charger putting both on the same AC bus along with the
AC loads. In this scenario, the battery powered inverter charger provides the
necessary frequency and voltage to enable the PV inverter to produce power.
This type of system must be able to maintain power generation in balance with
power consumption at all times. If there is more power being generated than can
be consumed by the loads, power will flow to the inverter/charger and be
converted to DC power which flows into the battery. Once the battery reaches
capacity, power generation by the PV inverter must be curtailed to maintain the
balance between generation and consumption. As the battery bank reaches
capacity, Conext XW+ curtails PV inverter generation by raising the AC line
frequency causing compatible PV inverters to reduce their power output in an
orderly manner. This is called Active Frequency Shift Power Curtailment.
975-0713-01-01
1–7
Introduction
During a grid outage even a home with a grid-tie PV inverter system will be
without power because PV inverters cannot produce power without the presence
of a reference voltage and frequency. To enable the PV inverter to provide power
during a grid outage the Conext XW+ is retrofitted in front of PV inverter. The PV
inverter is rewired from the grid connection to a critical load (sub) panel and the
AC Couple is on Conext XW+ AC Output port. When the grid is present, PV
inverter power feeds the loads and any excess is exported by Conext XW+ to the
grid using AC1 (where permitted by the local utility). During a grid outage,
Conext XW+ anti-islanding protection prevents power from being exported to
grid on AC1. Conext XW+ then uses Active Frequency Shift Power Curtailment to
reduce the power output of compatible PV inverters, maintaining the balance of
generation and consumption.
Consult the manufacturer's specifications to determine if your PV inverter is
compatible with Active Frequency Shift Power Curtailment. Conext XW+ AC
coupling function is enabled by default (Advanced Features Menu).
NOTICE
AC COUPLED PV INVERTER COMPATIBILITY
AC power generated by AC coupling PV inverters with Conext XW+ must be
consumed by AC loads or used to charge batteries. As an alternative, the
excess power produced from a PV inverter can be routed to dump loads. Do
not AC couple PV inverters with the Conext XW+ that are unable to reduce,
derate or cease the excess PV inverter power in response to the changes in
AC line frequency controlled by the Conext XW+. Consult the manufacturer's
specifications of your PV inverter and confirm compatibility.
Failure to follow these instructions can result in equipment damage.
The AC coupling advanced setting should remain enabled except in cases when
the DC voltage level is allowed to have large variations and the line frequency
needs to remain constant.
Further details about AC Coupling can be found in the document “Off-Grid
Systems Guide” available at www.schneider-electric.com/solar.
Multi-unit Operation
Up to three Conext XW+ units can be installed together in a single phase
configuration with the Conext PDP (Power Distribution Panel). A maximum of four
Conext XW+ units can be installed together in a single phase configuration with
the addition of a second PDP. The PDP is an ideal optional companion for
managing AC connections and integrating a battery bank and other DC
connections. Regardless of how it is installed, the maximum number of Conext
XW+ in a single phase or split phase configuration is four.
Three Conext XW+ units can also be configured in a cluster for three-phase
operation using a single PDP (PDP is optional). Up to four clusters of three
Conext XW+ units can be installed together in a three-phase configuration when
using an external AC contactor.
1–8
975-0713-01-01
Operation
Multiple Conext XW+ units and other Xanbus devices with common connections
to battery banks, PV arrays, the utility grid or a generator require programming
during commissioning to enable correct operation.
Inverting
For multiple units, the master Conext XW+ synchronizes operation of other
connected units using the same Xanbus network. When AC loads are present, all
units produce power, effectively sharing the load. Multiple units do not produce
power together when Search mode is enabled. See “Using Search Mode” on
page 3–8.
Parallel Charging
Multiple Conext XW+ units on the same Xanbus network synchronize their
charging stages to help provide efficient charging of the battery bank. When a
single unit transitions from bulk to absorption, so do all other units. In absorption,
all units must complete the absorption stage before any of them transition to the
next stage. Note that units stop sharing charge current just before completing the
bulk stage and only share charging load during the bulk stage.
Each Conext XW+ unit provides a maximum charging current set by the Max
Charge Rate setting. The maximum current may be decreased, subject to the
internal operating temperature.
When one or more Conext Solar Charge Controllers are installed and operating in
the system, Conext XW+ units synchronize only their bulk charging stage with the
charge controllers.
AC Transfer
Multiple Conext XW+ units monitor each other to determine the quality of AC
input. If AC input is deemed to be bad by any of the paralleled units, no transfer
to AC Out occurs and the AC LED continues to flash on each unit’s information
panel until the AC is qualified by all. If the system was in pass-through and AC
fails on any unit, all units transfer to invert simultaneously.
Note: Equalization is device specific. Only the device(s) on which equalization
was initiated will perform the equalization. Other devices will stay in float or nofloat depending on their settings.
Faults
975-0713-01-01
•
When a single Conext XW+ slave unit in a multi-unit system has a fault, only
the affected device shuts down.
•
When a master unit has an invert mode fault that causes it to stop inverting, it
is considered a system-wide fault and all units shut down. Invert mode faults
on slave units only shut down the affected slave unit.
•
All units shut down when there is a battery-related fault such as battery overtemperature or over-voltage.
1–9
Introduction
Independent Operation of Features Each Conext XW+ grid-interactive feature
(e.g. enhanced grid support, grid sell, load shave and generator support)
operates independently. This enables Conext XW+ units in a multi-unit system to
be configured to perform multiple functions independently and allows greater
flexibility in operating the entire system.
Auxiliary Output
Each Conext XW+ has one programmable 12 V, 0.25 A auxiliary output that is
able to run a small fan or operate an external relay to perform other functions.
Examples include remotely starting a two-wire start generator in cases where the
Xanbus-enabled Conext AGS is not used, disconnecting external non-critical
loads, or turning on a diversion load for battery voltage regulation. See “Auxiliary
Output Settings” on page 3–30 for programme parameters.
Transfer Relay
The built-in transfer relay is rated for 60 amps. When an external AC source is
detected and qualified on either of the AC1 or AC2 inputs, the relay transfers
loads from the Conext XW+ to the external power source, and then activates the
battery charger. Multi-unit systems of three or more require the use of an external
AC contactor to manage the AC bus.
K1 and K2 relay
The Conext XW+ design does not allow the K1 and K2 relays to close
simultaneously. This design helps stop the generator input (AC2) from back
feeding to the utility grid (AC1).
Monitoring the Conext XW+
Operation of the Conext XW+ can be monitored using the factory-installed
inverter information panel or the optional Conext System Control Panel and
ComBox. To configure the Conext XW+, the Conext System Control Panel or
ComBox must be used.
Conext XW+ Information Panel
The Conext XW+ information panel features:
1–10
•
Buttons for Conext XW+ Startup/Shutdown/Standby control, clearing faults
and warnings, and battery equalization.
•
A three-character display to indicate power output, charge current, or
troubleshooting information.
•
LEDs to indicate AC input status, output status, battery condition, and
system warnings/faults.
975-0713-01-01
Monitoring the Conext XW+
AC1
kW
AC2
A
Event
Inverting
Charging
!
Equalize
Figure 1-7 Conext XW+ Information Panel
Conext System Control Panel
The Conext System Control Panel (Conext SCP) or ComBox are required for
configuring the Conext XW+ and other Xanbus-enabled system components.
The Conext SCP features:
•
A liquid crystal display which provides graphics and text describing real time
operation and status information.
•
LED event and warning indicator.
•
Internal clock which is used to control time-dependent Conext XW+ settings.
•
Buttons to select configuration menus, customize Conext XW+ functions, and
clear faults and warnings.
Conext SCP
Event/Warning
Standby
Figure 1-8 Conext System Control Panel
975-0713-01-01
1–11
Introduction
1–12
975-0713-01-01
2
Monitoring
Operation
Chapter 2, “Monitoring Operation”,
contains information about monitoring
Conext XW+ Inverter/Charger operation
using the inverter information panel or the
Conext System Control Panel.
Topics in this chapter include:
• “Monitoring Operation with the Inverter
Information Panel” on page 2–2
• “Monitoring Operation with the Conext
SCP” on page 2–9.
Monitoring Operation
Monitoring Operation with the Inverter Information Panel
The inverter information panel on each Conext XW+ monitors a single Conext
XW+. The Conext XW+ information panel displays basic information and
performs start up, shut down, equalization and standby functions. LEDs on the
information panel indicate AC input status, Conext XW+ status, battery condition,
and charging and equalization status. The Conext XW+ LEDs and threecharacter display screen indicate warning and event conditions.
Figure 2-1 Inverter Information Panel
Monitoring AC Input Status
Grid (AC1) The green Grid (AC1) LED indicates the presence and status of the
AC source connected to the AC1 input.
Symbol
2–2
LED On
LED Flashing
LED Off
AC input is present and
qualified. The Conext XW+ is
ready to charge batteries,
pass AC through to the
loads, or interact with the
grid.
AC input is
present and is
being
qualified.
The Conext XW+ is
not connected to
the grid. AC input is
not present or AC
input is present but
not within qualifying
range.
975-0713-01-01
Monitoring Operation with the Inverter Information Panel
Gen (AC2) The green Gen (AC2) LED indicates the presence and status of a
generator or other auxiliary AC source on the AC2 input.
Symbol
LED On
LED Flashing
LED Off
The AC source is present and
AC input is qualified. The
Conext XW+ is ready to
charge batteries and pass
power through to the loads.
AC input is
AC input is not
present and is present or AC input
being qualified. is present but not
within nominal
range.
When one AC input LED is on and the other AC input LED is flashing, AC input is
present on both AC1 and AC2. However, the Conext XW+ can qualify and receive
AC input from only one source at a time. The qualified source is represented by the
steadily lit LED. When two sources of AC input are present, the Conext XW+ uses
the source selected under AC Priority in the AC Settings menu.
Monitoring Conext XW+ Status
The green kW LED indicates the Conext XW+ is inverting DC input to AC output.
When this LED is on or flashing, the display screen shows Conext XW+ output
power in kilowatts.
Symbol
LED On
LED Flashing
LED Off
The Conext XW+ is
inverting and
generating an AC
output. Display
screen shows
output power in kW.
The Conext XW+
is in Grid Sell
mode. Display
screen shows
output power in
kW.
The Conext
XW+ is not
inverting.
Figure 2-2 Inverter Information Panel When Inverting
975-0713-01-01
2–3
Monitoring Operation
Monitoring Charger Status
The green LED labelled “A” indicates the Conext XW+ is charging the battery
bank. When this LED is on, the numeric display screen shows battery charging
current in amps.
Symbol
LED On
LED Flashing
LED Off
The Conext XW+ is
charging the
battery bank. The
numeric display
screen shows
battery charging
current in amps.
AC coupled
charging is
occurringa.
The Conext
XW+ is not in
charge mode.
May flash in AC
coupled mode
where reverse
current greater
than 3 A is
present.
Multiple units are
connected in
parallel under no
load.
a.See the document “Off-Grid Systems Guide” available on www.schneider-electric.com for
more information about AC coupling.
Figure 2-3 Inverter Information Panel When Charging Battery
Note: When a charge cycle ends or charging is manually disabled, the Conext
XW+ does not leave charge mode immediately, and the charging LED remains
on for 60 seconds.
2–4
975-0713-01-01
Monitoring Operation with the Inverter Information Panel
Monitoring Events
The Red Event LED indicates the presence of a fault or warning in the system. To
clear active events, press the startup/shutdown button momentarily.
Symbol LED On
LED Flashing
The Conext XW+ has a fault and
has stopped charging or inverting.
The LED also turns on steadily if the
unit has both a fault and a warning.
The Conext XW+ has a
warning. A warning may
escalate to a fault if the warning
condition does not go away.
Equalizing Batteries
Button
Pressing the Equalize button (
symbol) for five seconds initiates a battery
equalization cycle. This cycle is used to restore battery capacity when battery life
has deteriorated due to sulphation. After the button is pressed the Conext XW+
begins a full charge cycle, which is automatically followed by an equalization
cycle. Equalization functions only when AC is present and qualified and the
charger is enabled. Otherwise the Conext XW+ generates a cannot equalize
warning (W96)
WARNING
EQUALIZATION HAZARD
Only flooded lead acid batteries should be equalize charged. Hydrogen and
oxygen gases are produced when batteries are equalized and can potentially
cause an explosion if ignited. Corrosive battery acid can escape.
Provide adequate ventilation and remove all sources of ignition, such as open
flames, sparks, electric motors, relays, light switches, etc.
Equalization voltage is significantly higher than nominal battery voltage.
Detach electronics that can be damaged by high DC voltage.
Failure to follow these instructions can result in death or serious injury.
Note: In a system where more than one device is capable of equalizing batteries
(such as a system including multiple Conext XW+ units and/or Conext Solar
Charge Controllers), there is no system-wide equalization command for all
devices. To equalize with multiple devices, each would have to be enabled
individually. Alternatively, equalization can be performed using only the selected
device. During the equalization process, one device applies the equalization
charge while the other devices continue to operate in synchronized charge
mode, typically in float (three-stage charging) or no-float (two-stage charging).
For more information, see “Equalize Charging” on page 3–16.
LED
975-0713-01-01
The yellow Equalize LED indicates that the Conext XW+ is equalizing batteries.
2–5
Monitoring Operation
Symbol
LED On
LED Flashing
The Conext XW+ has begun
equalizing the batteries.
Equalization has been requested
but has not begun. The Conext XW+
must complete a charge cycle
before applying the equalization
charge.
Using Startup/Shutdown/Standby Modes
Startup/Shutdown
control
When the Conext XW+ is operating, pressing and holding the STARTUP/SHUTDOWN
button for five seconds shuts down the unit. To return the unit to its previous
operating state, press the STARTUP/SHUTDOWN button again.
While the Conext XW+ is turning off, the other inverter information panel buttons
stop working. The shutdown process cannot be cancelled. The Conext XW+ can
only be restarted once the display is blank.
Standby mode
In Standby mode, the Conext XW+ stops charging, inverting, and allowing AC to
pass through to the AC output. However, the unit remains powered and present
on the Xanbus network.
To put the Conext XW+ into Standby mode, press and hold the STARTUP/
SHUTDOWN button and the Equalize button simultaneously for about five seconds.
The display shows Stb. To return the Conext XW+ to operating mode, press the
STARTUP/SHUTDOWN button momentarily.
Pressing the STARTUP/SHUTDOWN button momentarily while the Conext XW+ is
operating clears active faults and warnings.
Single-unit
installations
In a single-unit installation, when the Conext XW+ is shut down using the
button, Xanbus network power is off. When Xanbus network
power is off, network-connected accessories such as the Automatic Generator
Start (Conext AGS) and Conext SCP could lose power and stop operating.
Conext Solar Charge Controllers continue to operate if Xanbus network power is
removed, but they do not continue to communicate with each other. Furthermore,
the Conext Combox will not collect harvest data while it is off, even though MPPT
is still functioning and collecting data.
STARTUP/SHUTDOWN
If the STARTUP/SHUTDOWN button is pressed and held on a Conext XW+ and a
Conext AGS is installed in the system, the unit stops inverting or charging
immediately and shuts down completely in 120 seconds. During this time, the
display shows OFF. This interval allows the Conext AGS to stop the generator
after a cool down period. During the 120 second shutdown time, all network
communication is blocked and the unit sends a shutdown command to all other
devices in the system. As well, the inverter information panel buttons stop
working. The shutdown process cannot be cancelled. The Conext XW+ can only
be restarted once the display is blank.
Multiple-unit
installations
2–6
If the STARTUP/SHUTDOWN power button is pressed and held on a master Conext
XW+ (see “Inverter Mode” on the “Multi-Unit Config Menu” on page 3–32) and a
Conext AGS is installed in the system, the unit stops inverting or charging
immediately and turns off completely in 120 seconds. During this time, the
display shows OFF. This interval allows the Conext AGS to stop the generator
after a cool down period. During the 120 second shutdown time, the master unit
stops network communication and the slave units issue an external sync fault
975-0713-01-01
Monitoring Operation with the Inverter Information Panel
(F69) or a system configuration fault (F66). As well, the inverter information panel
buttons stop working. The shutdown process cannot be cancelled. The Conext
XW+ can only be restarted once the display is blank.
In a multiple-unit installation, when a slave Conext XW+ is shut down, other
Conext XW+ units continue to supply Xanbus network power and the Conext
AGS and Conext SCP continue to operate.
Monitoring Battery Level
When the Conext XW+ is inverting, the row of five LEDs indicates the
approximate available SOC (State of Charge) of the batteries connected to the
system. This capacity reading is based on battery voltage.
The battery LEDs can retrieve information from various sources depending on
the devices installed in the system. SOC information is reported from one of the
following devices, listed in order of priority:
1. Conext Battery Monitor (If installed)
2. Conext MPPT Solar Charge Controller (When operating)
3. Conext XW+
When the Conext XW+ is reporting, there are four battery states from empty to
full. When the available battery state is empty, no LEDs are lit. The battery is
considered empty when its depth of discharge exceeds approximately 50 per
cent. When the battery capacity is low, the two leftmost LEDs are lit. When the
battery is at medium capacity, the four leftmost LEDs are lit. When the battery
capacity is full, all five LEDs are lit. When the Conext Battery Monitor or Conext
MPPT Solar Charge Controller devices are reporting, the true SOC will be
indicated on the battery level LEDs and all LEDs will be utilized.
Figure 2-3 Battery Level LEDs
975-0713-01-01
2–7
Monitoring Operation
Note: The battery LEDs are not a precise indicator of battery level. They are to
be considered a general guideline rather than an exact measurement. For
greatest accuracy, install the Conext Battery Monitor (Part # 865-1080-01).
Reading the Display Screen
The numeric display screen shows the following information about the
operational state of the Conext XW+:
2–8
•
Output power in kilowatts (when the
(kW) LED is lit).
•
Battery charger current in amps when the
•
Stb when the Conext XW+ is in Standby mode.
•
Sch when the Conext XW+ is in Search mode. See “Using Search Mode” on
page 3–8.
•
OFF when the startup/shutdown button is pressed and held for five seconds.
OFF is displayed briefly before the unit turns off.
•
“---” appears when the Conext XW+ is in transition between modes, when
inverter selection is disabled via the SCP or Conext Combox, or operating in
AC pass through mode in a multi-cluster configuration.
•
En appears momentarily when the Conext XW+ is enabled.
•
dIS appears momentarily when the Conext XW+ is disabled.
•
5 minute countdown timer value may appear if there is no other more
significant information to display after grid interruption during energy export
operation.
(A) charging LED is lit.
975-0713-01-01
Monitoring Operation with the Conext SCP
Monitoring Operation with the Conext SCP
The Conext System Control Panel (Conext SCP) provides remote configuration
and monitoring capability for the Conext XW+ and all other Xanbus-enabled
devices in the network.
You can monitor Conext XW+ operation on the Conext SCP using the:
•
System Status screen (see page 2–13)
•
Conext XW+ Home screen (see page 2–13)
•
Conext XW+ Meters Menu (see page 2–15).
Conext System Control Panel Features
Conext SCP
7
Standby
Event/Warning
1
6
2
3
4
5
Feature Description
975-0713-01-01
1
Event/Warning light indicates a device on the system has a fault or
warning condition and requires attention. The light flashes when a
warning occurs and turns on steadily when a fault occurs.
2
Enter button confirms selection of a menu item or displays the next
screen.
3
Up arrow button scrolls upwards through screen text or increases a
selected value.
4
Down arrow button scrolls downwards through screen text or
decreases a selected value.
5
Exit button cancels selection of a menu item or displays the previous
screen.
6
Display shows menus, settings, and system information.
7
Standby button disables inverting and charging on all Conext XW+s
in the system when pressed for one to two seconds. To enable
inverting and charging, press the Standby button again.
2–9
Monitoring Operation
Using the Standby Button
The Standby button has two functions. The Standby button can disable inverting
and charging for the Conext XW+ units in the system or when pressed
simultaneously with the Exit button, can put the entire system into Standby mode.
Pressing the Standby button produces the same result as disabling Invert and
AC Charge in the System Settings menu. Pressing the Standby button
momentarily affects only Conext XW+ units; it does not affect Conext Solar
Charge Controller operation. After disabling inverting and charging with the
Standby button, the system continues to pass AC power through to the loads,
and “---” is displayed on the inverter information panel.
Pressing the Exit and Standby buttons at the same time puts the entire Conext
power system (including Conext Solar Charge Controllers) into Standby mode. In
Standby mode, the Conext XW+ units stop passing AC power through to the
loads, and Stb is displayed on inverter information panel.
If a Conext AGS is installed and a generator is running, the system commands
the generator through a cool down and shut down cycle. This operation cannot
be interrupted and may take up to 120 seconds.
Conext System Control Panel Navigation
This section describes the different types of screens and menus on the Conext
SCP that are useful for monitoring and controlling Conext XW+ operation.
Viewing the Conext SCP Home Screens
The top level screens on the Conext SCP are the startup screen, the
System Status screen and the device Home screen. Whenever power is
applied the startup screen appears, followed by the System Status screen.
Press the up or down key to view the device Home screen for any system
connected Xanbus devices. See Figure 2-4.
2–10
975-0713-01-01
Monitoring Operation with the Conext SCP
Appears for a few seconds after the system starts
up or when the system has been reset.
Startup Screen
System Status
System Status
Screen
Select Device
Press Enter to view
Select Device menu. Select Device
Screen
Select device from list
and press Enter to view
Device Setup menu.
XW+ 8548 : Home
Conext XW+
Home Screen
Device 2 : Home
Device 2
Home Screen
Press Enter from a Device Home screen
to view the Device Setup menu.
Device 3 : Home
Device 3
Home Screen
Device n : Home
The number of Home screens depends
on the number of Conext Xanbus-enabled
devices installed in the system.
Device n
Home Screen
Figure 2-4 Conext System Control Panel Top Level Screens
System Status Screen The System Status screen appears after the startup
screen. It displays aggregated status information for the entire power system.
For example, a single system might have three Xanbus network-connected
Conext XW+ Inverter/Chargers, two Conext Solar Charge Controllers, one Conext
AGS module, and one Conext SCP connected to a single battery bank, a single
generator, and a common utility grid.
The System Status screen features a Menu arrow pointing to the Enter button.
Pressing Enter takes you to the Select Device menu. For more information,
see “Reading the System Status Screen” on page 2–13.
Note: If you are uncertain as to which Conext SCP screen or menu you are
viewing, you can return to the starting point—the System Status screen—by
pressing Exit repeatedly until the screens stop changing.
975-0713-01-01
2–11
Monitoring Operation
Conext XW+ Home Screen The Conext XW+ Home screen is the first of the
Device Home screens. Each Conext XW+ installed in the system has its own
Home screen.
The Conext XW+ Home screen displays status information for the Conext XW+.
The screen appearance varies with the status of the Conext XW+ (standby,
inverting, etc.) For more information, see “Reading the Conext XW+ Home
Screen” on page 2–13.
To display the Conext XW+ Home screen:
•
While viewing the System Status screen, press the down arrow key.
Viewing Other Screens
This section describes the next level of screens and menus on the Conext SCP.
Select Device Menu The Select Device menu displays a list of Xanbusenabled devices in the system, including the Conext XW+ and the Conext SCP.
From this menu you can access the Setup menus for each device in the system.
The Select Device menu also contains the Clock menu (where the time and
date are set) and the System Settings menu (where system-level settings can
be configured). These menus and the Conext SCP menu are available from the
Select Device menu, regardless of the number of Xanbus-enabled devices
installed.
To display the Select Device menu:
•
While viewing the System Status screen, press Enter.
Device Setup Menus Device Setup menus display status information (on the
Meters screen) and changeable settings. Changeable settings are identified by
the square brackets [ ] around values in the right-hand column.
To display the Setup menu for a device:
•
Highlight the device name on the Select Device menu and press Enter.
Alternatively, from the device Home screen, press Enter.
Select Device menu
Conext XW+ Setup
menu
Select Device
XW+ 8548 00: Setup
Meters
XW+ 8548
Select device from list,
and then press Enter to
view Device Setup menu
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[Bulk]
[Disabled]
[Operating]
Figure 2-5 Selecting a Device Setup Menu
2–12
975-0713-01-01
Monitoring Operation with the Conext SCP
Reading the System Status Screen
The System Status screen displays:
•
Qualified AC source (if applicable) and total power to and from the source.
•
Battery voltage and capacity level.
•
Net battery input or output current.
•
Total inverter loading.
•
Time and date.
Line 1: Battery voltage and input/output
current (positive when charging, negative
when inverting)
20.4A
53.9V
Line
2:
level meter
E--F Line 3: Battery
Power supplied to loads
1235W Line 4: AC input source and line-to-neutral
115V
3202W voltage. The bottom left corner displays AC1 or
menu
9:18AM
Mar 10 AC2 depending on the active input source. When
selling to the grid, the power displayed is
Menu arrow indicates the Enter
positive. When charging, the power displayed is
button. Pressing Enter displays
negative.
the Select Device menu.
System Status
Figure 2-6 System Status Screen
Reading the Conext XW+ Home Screen
The Conext XW+ Home screen displays real-time operating data specific to the
Conext XW+. The Conext XW+ status changes according to the states described
in Table 2-1 on page 2–14.
To view the Conext XW+ Home screen:
•
On the system Home screen, press the down arrow button until the Conext
XW+ Home screen appears.
XW+ 8548 00:Home
-26.4A
setup
0.0V
Top Line: Device name and number
Line 1: Inverter/charger status
Line 2: Battery current (in + or out –) and voltage
Invert
51.9V
1250W Line 3: Power supplied to loads
0W Line 4: AC in status
system
The setup arrow indicates the Enter
button. Press to display the inverter/
charger setup menu.
The system arrow indicates the
Exit button. Press to display the
System Home screen.
Figure 2-7 Conext XW+ Home Screen
Press the down arrow button from the Conext XW+ Home screen to display the
Home screens for other units and other Xanbus-enabled devices in the system.
975-0713-01-01
2–13
Monitoring Operation
Table 2-1 Conext XW+ Home Screen States
Conext XW+
Status
Displayed When...
Invert
The Conext XW+ is supplying power to loads on AC OUT by inverting power from the
batteries. AC input from the utility (AC1) or generator (AC2) is absent or out of nominal
range.
Qualifying AC
The Conext XW+ is determining if AC input on AC1 or AC2 is within a usable voltage
and frequency range. Qualifying AC is also displayed when the Conext XW+ is
awaiting application of AC power or a command to enable invert mode.
Charging
The Conext XW+ is charging the batteries from qualified AC input from the utility grid
(AC1) or a generator (AC2). The charge state is in transition to either bulk, absorption,
float, or equalize. AC input is also passed through to the load while charging.
Bulk
The Conext XW+ is bulk charging the batteries from qualified AC input from the utility
grid (AC1) or a generator (AC2). AC input is also passed through to the load while bulk
charging.
Absorption
The Conext XW+ is absorption charging the batteries from qualified AC input from the
utility grid (AC1) or a generator (AC2). AC input is also passed through to the load
while absorption charging.
ABS Finish
The Conext XW+ has completed the absorption stage and is waiting for other Conext
XW+ units in the system to complete absorption. This status can occur only when there
is another Conext XW+ also charging the battery.
Float
The Conext XW+ is float charging the batteries from qualified AC input from the utility
grid (AC1) or a generator (AC2). The Conext XW+ is set for three-stage charging. AC
input is also passed through to the load while float charging.
CHG Finish
The Conext XW+ has completed charging or the charge cycle has been interrupted
and is transitioning to the next state. This stage lasts about one minute, while the
battery is allowed to settle and battery voltage to drop back to normal. The delay
keeps the Conext XW+ from unnecessarily transitioning to grid support (if enabled)
due to the high battery voltage after a charge cycle.
Fault
The Conext XW+ has an active fault. The Fault/Warning light on the Conext SCP is on.
Gen Support
There is AC input from the generator on AC2, and the Conext XW+ is supporting the
generator by supplying additional power to the loads attached to AC Out.
The Conext XW+ supports the generator (or other power source connected to the
generator [default AC2] input) when the AC load current drawn from the generator
exceeds the GenSup Amps setting for 1 to 2 seconds.
The Conext XW+ uses stored battery energy to load share with the generator until the
total AC load current (generator plus Conext XW+ output) drops by 2 amps plus 10 per
cent of the GenSup Amps setting for 0.5 seconds.
For example, if GenSup Amps is set to 10 amps, the Conext XW+ starts to support
when the load exceeds 10 amps for 2 seconds and stops when it drops more than 3
amps below the GenSup Amps setting, or 7 amps (2 amps plus 10 per cent of 10
amps = 3 amps).
The system can enter this state if the battery voltage is above Low Batt Cut Out ()
and generator support is enabled. See “Generator Support Settings” on page 3–28.
2–14
975-0713-01-01
Monitoring Operation with the Conext SCP
Table 2-1 Conext XW+ Home Screen States
Conext XW+
Status
Grid Support
Displayed When...
There is AC input from the utility grid on AC1, however the priority for the Conext XW+
is to supply energy converted from external DC sources to the critical loads on AC
Out.
The Conext XW+ enters this state only when Grid Support is set to ON and battery
voltage is above the Grid Supp Volts setting. See “Grid Support Settings” on
page 3–22.
APF mode
APF (Active Power Frequency) mode is active. APF mode automatically injects or
reduces active power to the grid based on a predefined frequency to power
relationship. APF settings are only available through the Conext Configuration Tool. For
further details, see the Conext Configuration Tool Owner’s Guide.
Load Shaving
The Conext XW+ supports the utility grid when there is AC input on AC1 and the
current required to power the loads rises above the Load Shave Amps setting
between the Load Shave Start and Load Shave Stop times set on the Grid
Support menu.
When load shaving, the Conext XW+ uses stored battery energy to reduce the peak
load on the AC1 input by providing the difference between the actual load current and
the Load Shave Amps setting. The Conext XW+ enters this state only when Grid
Support is enabled, the load shave time window is valid and the load draw exceeds
the Load Shave Amps setting. The battery voltage must also be between + 2 VDC
and the Grid Support Volts setting. See “Grid Support Settings” on page 3–22.
Search
Search mode is enabled and the Conext XW+ is standing by, waiting to begin
inverting. See “Using Search Mode” on page 3–8.
SellToGrid
The Conext XW+ is grid-tied and is exporting energy to the utility grid on AC1. Both
Grid Support and Sell must be enabled in order to sell power back to the utility.
See Table 3-1, “Conext XW+ Setup menu” on page 3–2 and “Grid Support Settings” on
page 3–22. All configurations must comply with local and national electrical codes.
Standby
The unit has been placed in standby mode using the Mode setting on the Conext SCP
Setup menu, the Standby button on the Conext SCP, or the Standby key press
(STARTUP/SHUTDOWN and Equalization) on the inverter information panel.
Passthru
The AC connected to the AC1 or AC2 input is passing directly through the Conext
XW+ to the loads attached to AC Out. The batteries are not being charged in this state.
Equalize
Equalization has been turned on and the Conext XW+ is equalizing the batteries after
completing a full charge cycle.
Reading the Meters Screen
The Meters screen displays total system power production, grid voltage and
current status, and load voltage and current status.
To view the Meters screen:
•
975-0713-01-01
On the Conext XW+ setup menu highlight Meters, and then press Enter.
2–15
Monitoring Operation
XW+ 8548 00: Setup
Meters
XW+ 8548 00: Meters
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[Bulk]
[Disabled]
[Operating]
2300VA 1650W
10.1A 230V
50Hz
0VA
0W
0.0A
0V
0Hz
2300VA 1650W
10.1A 230V
50Hz
Float
3.7A 57.4V
20°C
Figure 2-8 Viewing the Meters Screen
Table 2-2 Meters Screen
Screen Item
Description
AC1
AC input power connected to the Conext XW+ AC1 terminals, in Volt-Amps and Watts.
AC1 is assumed to be connected to the utility grid, but it can be connected to any other
AC source.
AC1 In
AC input voltage and current connected to the Conext XW+ AC1 terminals. This input
voltage display might drift slightly before the inverter has synchronized to the grid.
AC1 Freq
AC frequency connected to the Conext XW+ AC1 terminals.
AC2
AC input power connected to the Conext XW+ AC2 terminals, in Volt-Amps and Watts.
AC2 is assumed to be connected to a generator, but it can be connected to any other
AC source.
AC2 In
AC input voltage and current supplied to the inverter/charger from the AC2 input. This
meter indicates the inverter/charger is drawing power from the generator to charge the
battery or power the AC loads.
AC2 Freq
AC frequency connected to the Conext XW+ AC2 terminals.
Load Power
Power consumed by the AC loads attached to AC OUT, in Volt-Amps and Watts.
ACLoad
AC voltage and current supplied to the AC loads.
Load Freq
AC frequency supplied to the AC loads on AC OUT.
State
Operating state of the Conext XW+. For more information, see Table 2-1 on page 2–14.
DC
Charging current and battery voltage.
Batt Temp
Battery temperature as read by the BTS, connected to the Conext XW+. If the BTS is
connected to a different device on the Xanbus network, please see the Meters screen for
that device for temperature data. All Xanbus devices on the Xanbus network will share
temperature data for temperature compensated charging. However, the temperature is
only displayed on the meters screen for the device with the BTS installed. The BTS which
is monitoring the device displaying the highest temperature will take priority. If the BTS is
not installed, it shows NotAvailable.
2–16
975-0713-01-01
3
Configuration
Chapter 3, “Configuration” explains how
to navigate through the Conext System
Control Panel menus and configure the
Conext XW+ Inverter/Charger.
Topics in this chapter include:
• “Using the Conext System Control
Panel” on page 3–2
• “Using the Setup Menus” on page 3–4
• “Inverter Settings Menu” on page 3–7
• “Charger Settings Menu” on page 3–9
• “AC Input Settings” on page 3–21
• “Grid Support Settings” on page 3–22
• “Generator Support Settings” on
page 3–28
• “Auxiliary Output Settings” on page 3–
30
• “Multi-Unit Config Menu” on page 3–32
• “Connections Menu” on page 3–38
• “Copying Settings From Another Unit”
on page 3–39
• “Restoring the Conext XW+ to Factory
Default Settings” on page 3–40
• “Using the Advanced Features” on
page 3–41
Configuration
Using the Conext System Control Panel
The Conext XW+ is configured using the Conext SCP (Conext System Control
Panel). The Conext SCP provides access to settings relating to AC input and
output, battery charging, and grid-tie operation.
Conext XW+ Setup Menu
The Conext XW+ Setup menu is accessible from the System Home screen and
the Conext XW+ Home screen.
To navigate to the Conext XW+ Setup menu:
1. From the system Home screen, press Enter to view the Select Device
menu.
Or from the Conext XW+ Home screen, press Enter. The Conext XW+ Setup
menu appears. Go to step 2.
2. Highlight the Conext XW+ device name, then press Enter.
XW+ 8548 00: Setup
Meters
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[None]
[Disabled]
[Operating]
Note: The Conext SCP only displays four
lines of the Setup menu at once. To view
additional settings, press the Down
arrow button.
Figure 3-1 Conext XW+ Setup menu
Table 3-1 Conext XW+ Setup menu
Menu Item
Description
Meters
Displays the Meters screen.
Inverter
Enables or disables the inverter.
Search Mode
Turns Search Mode on and off. See “Using Search Mode” on page 3–8.
3–2
975-0713-01-01
Using the Conext System Control Panel
Table 3-1 Conext XW+ Setup menu
Menu Item
Description
Grid Support
Enables or disables grid-interactive Conext XW+ features, such as grid support
and grid sell mode. See “Grid Support Settings” on page 3–22. To allow grid
support to function after battery charging has completed, it is recommended to
set the Charge Cycle to 2-Stage. The MPPT controllers must still be set to 3stage. See “Charger Settings Menu” on page 3–9. When using load shave,
turning ON Sell and setting Sell Amps to 0.0 is a way to make the net power flow
to the grid zero. If sell is not enabled, there will be a net purchase of as much as
2.0 - 3.0 kWh per day due to the current control loop not allowing any outgoing
current. If you wish to further reduce grid draw using this function, enable sell
mode even if you do not wish to export power and set Max Sell Amps to a value
of 0.
Charger
Enables or disables the charger.
Force Chg
Manually changes the charge stage to either Bulk or Float (when 3-Stage cycle
is selected) or Bulk or NoFloat (when 2-Stage cycle is selected).
Equalize
Enables or disables battery equalization. This option is only available if the
battery type is set to Flooded or is set to Custom with Equalize Support
enabled.
Mode
Selects the Conext XW+ operating mode: Operating or Standby. The red
Standby button on the Conext SCP has similar functionality (see “Conext System
Control Panel Features” on page 2–9).
Clear Faults/
Warnings
Clears any active faults or warnings. If the fault or warning condition is still
present, the fault or warning message may reappear.
View Device Info
Displays the Device Info screen where you can view the warning, fault, and
event logs.
Basic Settings
Select to display and/or adjust the basic Conext XW+ settings. See “Using the
Setup Menus” on page 3–4.
Setting the Time and Date
Conext XW+ advanced features such as peak load shaving, charger block, and
time-stamped events (faults, warnings, and logged historical data) require that
the system be set to the correct time. The Conext SCP has an internal clock that
controls the time for the Xanbus-enabled devices in the system. You can set the
time, time format, and date on the Clock menu. The Clock menu is accessible
on the Select Device menu.
For more information, see “Setting the Time” and “Setting the Date” in the Conext
System Control Panel Owner’s Guide.
975-0713-01-01
3–3
Configuration
Note: Network time on the ComBox overrides time configured on any individual
device in the network-enabled power system using network time protocol (NTP).
If your device is not compatible with NTP, Conext XW+ features such as peak
load shaving and charger block may not work correctly, and charge controller
daily power production values may reset at an unexpected time. If your device is
working incorrectly, configure the ComBox to use the local time and date. See the
ComBox Owner’s Guide, Document Part # 975-0679-01-01 for more information.
Using the Setup Menus
Basic menu
The Conext XW+ configuration settings can be viewed in Basic and Advanced
formats (see Figure 3-3, “Basic and Advanced Settings” on page 3–6). The basic
settings include configuration items you may have to adjust routinely, or as part of
initial setup.
Advanced menu
The advanced settings option gives you access to the full range of Conext XW+
settings, including everything displayed on the basic menu. As a safeguard
against unintended advanced configuration, the Conext SCP displays the basic
settings by default. To view the advanced settings, you must perform a special
keypress.
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
To select the Advanced settings:
1. On the Select Device menu, select a Conext XW+.
2. Press and release Enter + up arrow + down arrow at the same time.
Notes:
• This keypress enables the Advanced settings for every device in the system.
• After performing the keypress, “Advanced Settings” appears at the top of
the Setup menu. When the keypress is performed again, the Setup menu
displays “Basic Settings” as the last item on the menu.
The Conext XW+ Advanced settings include menus for configuring:
•
3–4
Inverter settings (see page 3–7)
975-0713-01-01
Using the Setup Menus
•
Charger settings (see page 3–9)
•
AC transfer limit settings (see page 3–21)
•
Grid Support and Peak Load Shaving settings (see page 3–22)
•
Generator Support settings (see page 3–28)
•
Auxiliary output settings (see page 3–30).
•
Multi-Unit Operation, including customizing the default model name of the
inverter/charger and setting its network device number. Setting the device
number is important when multiple Conext XW+ units are on the Conext
Xanbus network and sharing connections such as AC loads, utility grid, and
generator. The device number is also used when configuring paralleled
Conext XW+ units for master-slave operation (see page 3–7).
In the advanced settings you can also copy another unit’s settings using the
Copy from command.
To view the Advanced or Basic settings:
•
From the Setup menu, with Basic Settings or Advanced Settings
highlighted, press Enter. See Figure 3-2.
XW+ 8548 00: Setup
Advanced Settings
XW+ 8548 00: Adv
Inverter Settings
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[None]
[Disabled]
[Operating]
[XW+ 8548 01]
Figure 3-2 Selecting Advanced Settings
To select and change a configurable setting:
1. On the desired configuration menu, press the up arrow or down arrow button
to highlight the setting you want to change.
2. Press Enter to highlight the current value of the setting.
3. Press the up arrow or the down arrow button to change the value. Hold down
the button to scroll through a large range of values quickly.
The previously set value appears with an asterisk (*) beside it.
4. Press Enter to select the value.
5. If you have another setting to change, return to step 1. Or if you have no
more settings to change, press Exit until the Conext SCP displays the
desired screen or menu.
Note: If you have no more settings to change, it is recommended to leave the
Setup menu in the basic settings format to help prevent unintended
configuration. If the Setup menu displays Advanced Settings, press Enter +
up arrow + down arrow at the same time. The Setup menu should then display
Basic Settings as the last item on the menu.
975-0713-01-01
3–5
Configuration
XW+ 8548 00: I nv
[ 46V ]
[ 10s ]
[ 70V ]
[ 50W]
[ 2s ]
Basic Settings
XW+ 8548 00:Basic
Batt Type
[Flooded]
[440Ah]
[100%]
[2-Stage]
[50V]
[AC1]
[60A]
[60A]
[54V]
[44V]
XW+ 8548 00:Chg
[Flooded]
[ 440Ah]
[100%]
[ 2- Stage]
[Warm]
[50V]
[180min]
[12:00 AM]
[12:00AM]
XW+ 8548 00 : AC
Advanced Settings
XW+ 8548 00 :
Adv
[ XW+ 8548 0 1 ]
[AC1 ]
[ 56 A]
[ 202 V]
[ 260 V]
[ 45Hz ]
[ 55Hz ]
[ 56 A]
[ 202 V]
[ 264 V]
[ 45Hz ]
[ 55Hz ]
Custom Set t i ngs
[Enabled]
[ 64. 0V]
[ 57. 6V]
[ 57. 6V]
[ 54. 0V]
[108mV/C]
Custom Settings is
displayed only when Custom is
selected under Batt Type.
Eqlz Voltage is displayed
only when Eqlz Support is
X W+ 8548 00: Grid
[53V]
[Disabled]
[ 27A]
[ Disabled]
[44A]
[12:00AM]
[12:00AM]
XW+ 8548 00: Gen
[Disabled]
[44A]
XW+ 8548 00: Aux
[Manual Off ]
[ Act Hi]
[LowBatt V]
[44V]
[1sec]
[48V]
[1 sec]
XW+ 8548 00: Multi
[XW+ 8548]
[00]
[1PhMaster]
Note: The Conext SCP displays
only four lines of each
configuration menu at one time.
To view additional settings, press
the down arrow button.
XW+ 854800 : Adv Features
[ Disabled]
[ Disabled]
[ Disabled]
[Enabled]
[ Disabled]
[ Disabled]
Trigger and Clear settings are
displayed only when Automatic is
selected under Manual Aux.
Connections
[HouseBatt1]
[ACLoad1]
[Grid 1]
[Gen1]
Figure 3-3 Basic and Advanced Settings
3–6
975-0713-01-01
Inverter Settings Menu
Inverter Settings Menu
The Inverter Settings Menu contains settings that control when the Conext XW+
turns on and off while inverting.
Table 3-2 Inverter Settings Menu
Item
Description
Low Batt
Cut Out
Low Batt Cut Out controls when the inverter turns off due to a low battery voltage
condition. The inverter will turn off only after this level has been reached for the period of
time set for LBCO Delay. This setting is not temperature compensated.
LBCO
Delay
LBCO Delay controls how long the inverter is allowed to operate at or below the
Low Batt Cut Out level before turning off due to a low battery voltage condition. The
inverter will stop producing AC output only after the Low Batt Cut Out setting has
been reached for this uninterrupted period of time.
Once the inverter has shut off, the battery voltage must rise 4 volts above the
Low Batt Cut Out setting for inverter operation to resume.
High Batt
Cut Out
High Batt Cut Out sets the maximum battery voltage at which the inverter will
operate. If the battery voltage exceeds this limit for more than 1 minute, the inverter
displays a fault message (F49) and shuts down. The inverter will not support AC loads
when in this condition. If a qualified AC source is present, the unit passes AC through to
the loads. The inverter automatically restarts when the voltage drops to 6 volts below the
High Batt Cut Out setting. If battery voltage continues to rise after shutdown, an
external charger may still be charging the batteries. The Conext XW+ cannot control how
external chargers operate.
Search
Watts
Search Watts sets the inverter’s search sensitivity when Search mode is enabled. When a
load larger than this setting is present on AC OUT, the inverter starts producing AC output
from battery power. Enabling Search mode from the Setup Menu (see page 3–2) can
minimize power draw from the battery during periods of low demand from loads. Also see
“Using Search Mode” on page 3–8.
Search
Delay
Search Delay sets the time between search pulses. When searching for loads, the Conext
XW+ sends out search pulses on AC OUT to determine the presence of a load above
Search Watts. Conext XW+ power draw while in search mode decreases when
Search Delay is increased, but the Conext XW+ response time to active loads is
slower.
For default settings, see “Inverter Menu” on page B–3.
975-0713-01-01
3–7
Configuration
Using the Low Battery Cut Out and LBCO Delay Settings
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
The Low Batt Cut Out setting is the lowest battery voltage level acceptable
for use by the inverter. When the batteries discharge to the Low Batt Cut Out
setting, and are held at or below this level for the LBCO Delay time, the inverter
output shuts down and connects any available AC source (AC1 or AC2) to the
charger to bring the battery level back above the Low Batt Cut Out setting.
After shutdown, the inverter does not support loads on AC OUT, and AC loads
must be powered by either a generator (AC2) or grid power (AC1). If the battery
voltage stays below the LBCO voltage for more than 24 hours, the Conext XW+
shuts down.
•
If using the Conext Automatic Generator Start system, it is recommended to
set the Conext AGS voltage trigger setting higher than the Conext XW+ Low
Batt Cut Out voltage.
•
Although not recommended, if using the Conext Automatic Generator Start
system with the start trigger set to the same voltage as the LBCO voltage, do
not set the LBCO Delay for less than the amount of time it takes the
generator to start and connect.
Otherwise – in both of the scenarios above – inverter output turns off before the
generator automatically starts, causing the battery voltage to recover slightly.
This may then stop the Conext AGS from starting the generator or result in the
Conext XW+ cycling on and off multiple times before the generator automatically
starts.
Using Search Mode
Why use Search
mode?
Search mode allows the inverter to selectively power only items that draw more
than a certain amount of power, which can result in energy savings. The Conext
XW+ has a no-load power draw of about 28 watts. Enabling Search mode
reduces this power draw to less than 8 watts. Search mode operates differently in
single-unit and multi-unit installations.
Single units
When a single Conext XW+ has search mode enabled, the inverter sends
electrical search pulses through its AC output. These search pulses look for
connected AC loads. The delay between search pulses is set using the Search
Delay setting. After a load larger than the Search Watts setting is detected,
the inverter starts producing AC output.
3–8
975-0713-01-01
Charger Settings Menu
Multiple units
To use search mode in multiple unit installations with paralleled Conext XW+
units, the master unit must have search mode disabled. Slave units must have
search mode enabled.
When search mode is disabled on the master unit and enabled on slave units,
only the master Conext XW+ operates, and the slave units start to support the
load only when the load exceeds approximately 60 per cent of the rated output
power of the master unit. In a three-unit system, the third slave unit starts to
support the load if the load on the master is above 60 per cent of its rated power
for about 3 to 5 seconds. When the load drops below 20 per cent of the master’s
rated output power, the slave units stop producing AC output in reverse order,
which means that the last slave unit to start is the first to stop.
When to set up
Search mode
The Search mode feature is only valuable if the inverter can spend a fair amount
of time “sleeping” each day. Therefore, if Search mode is to be used it must be
adjusted properly. The initial adjustment should be made so that the Conext XW+
comes on only when needed.
Certain types of loads can cause search mode to work improperly. These types
of loads are described on page 4–2 of the Troubleshooting chapter. If these kinds
of loads are in the system, follow the suggestions given to resolve the problem.
If the problem loads cannot be resolved, there are two workaround solutions:
1. Disable search mode from the main Conext XW+ Setup menu, causing the
inverter to remain at full output voltage.
2. Use a search friendly companion load whose only purpose is to be switched
on to wake up the inverter to power the load that is unable to bring the
inverter out of search mode.
Notes:
• Search mode, by function, cannot work with clocks and timers or devices
that need power 24 hours a day. Examples of devices with timers include
video recorders, coffee makers with brew timers, refrigerators, and freezers
with defrost timers. Examples of devices that need power 24 hours a day
include telephone answering machines, alarm systems, motion detection
lights, and some thermostats.
• When the inverter is searching the output for loads, lights that have a
wattage lower than this setting may flash momentarily.
Charger Settings Menu
The Charger Settings menu provides options for configuring the Conext
XW+ to operate from your battery bank.
975-0713-01-01
3–9
Configuration
Table 3-3 Charger Settings Menu
Item
Description
Batt Type
Sets the system battery chemistry and type: Flooded (default), AGM, Gel, Lithium
Ion, and Custom.
Selecting Custom displays the Custom Settings item, which allows you to adjust
the settings for each charging stage.
Custom
Settings
Displays the Custom Battery Settings menu, where you can adjust settings
specific to your battery type and installation. It is only displayed if Custom is selected
as the Batt Type.
Batt Capacity
Selects the system battery capacity in Ah (amp hours). Setting the battery capacity to
0 resets the charging current to its default values. Zero Ah battery capacity implies
there is no absorption exit current criteria and absorption only exits when the
absorption timer (default 3 hours, range 1 minute-8 hours) expires.
Max Chg Rate
Sets the percentage of the maximum DC output current that is available to the charger.
The maximum DC output current for different models is:
• Conext XW+ 7048—110 ADC
• Conext XW+ 8548—140 ADC
If multiple Conext XW+ Inverter/Chargers are charging the same battery bank, set
each inverter's Max Chg Rate to 1/n of the desired charge rate (where n is the
number of inverter/chargers).
Note: Always refer to the battery manufacturer’s specifications before setting the Max
Chg Rate. Do not set the Max Chg Rate above these specifications.
Charge Cycle
Sets the charging method: 3-Stage (bulk, absorption, float) or 2-Stage
(bulk, absorption, no float).
Default Batt
Temp
Selects the battery temperature charging compensation if a battery temperature
sensor is not installed. In the absence of a battery temperature sensor, the charger
uses one of three settings: Cool (5 °C), Warm (25 °C), or Hot (40 °C).
ReCharge
Volts
When charger is set for 2-stage operation, sets the battery voltage level at which a new
charge cycle begins. Recharge Volts is automatically temperature compensated to
be consistent with the charge voltage (also temperature compensated).
Absorb Time
Sets the maximum time spent in the absorption stage, before transitioning to float or no
float.
Chg Block
Start
Sets the time to halt charging on AC1 (Grid). The AC2 (Gen) port is unaffected by the
Conext XW+ block settings. The charger block start and stop settings allow you to
select when the charger stops charging on AC1. To disable the charger block function,
set Chg Block Start and Chg Block Stop to the same time. See “Grid Support”
on page 3–24.
Chg Block
Stop
Sets the time that charging on AC1 can resume. At the Chg Block Stop time,
charging on AC1 is enabled again.
For default settings, see “Charger Menu” on page B–3.
3–10
975-0713-01-01
Charger Settings Menu
Battery Charger Functions
Whenever AC power is present, the unit can operate as a battery charger.
Different battery types and chemistries require different charging voltage levels.
Not charging batteries at the required levels can shorten battery life or damage
the batteries. The Conext XW+ is configured at the factory to work with the
battery types recommended for inverter applications. If the default settings do
not work for your specific installation, adjust the charge stage settings (as
recommended by the battery manufacturer) on the Custom Battery
Settings menu (see page 3–19).
Note: This information is provided for guidance only. Variations in battery
chemistry and site-specific environmental considerations mean that you should
consult your system designer or battery manufacturer for specific
recommendations for appropriate battery voltage and current settings.
Multi-Stage Charging Process
The charging cycle is a multi-stage process. Whenever qualified AC power is
present at the AC1 or AC2 input, power runs through to the connected load and
begins charging the batteries in parallel.
Battery
Voltage
Bulk Stage
Absorption Stage
(Boost Stage)
Float Stage
Absorption Voltage
3-Stage Charge
Float Voltage
Custom Charge
Boost
Timer
1hr fixed
Time
Max Absorb Time - Default 3 hrs
(adjustable 1 min - 8 hrs)
Battery
Current
Max Charge
Rate
Absorption Exit Current
Threshold = 2% of
programmed AH capacity
Time
Figure 3-4 Three-Stage Battery Charging Cycle
975-0713-01-01
3–11
Configuration
Notes:
When the charge cycle is interrupted, the charger will restart charging at the
beginning of the multi-stage algorithm.
Exit Current Threshold can be effectively disabled by programming the
amp-hour capacity to 0. In this case, absorption will only exit once the Max
Absorption timer expires.
Charge current during equalize state (optional state not shown here) is normally
limited to 10% of the programmed amp-hour capacity setting. If this setting is
programmed to 0 Ah, the charge current during equalize is instead limited to
whatever is programmed for the maximum current limit of the unit (the default
current limit in equalize mode is 60 A).
Synchronized charge states are active when more than one charging device
(Conext XW+ or Conext Solar Charge Controller) is connected in the system via
the Xanbus network.
• The first Conext XW+ or Conext Solar Charge Controller to enter bulk,
causes the other chargers to enter bulk.
• The first Conext XW+ to enter absorption causes the other chargers to enter
absorption.
• The last Conext XW+ ready to exit absorption triggers the rest to exit
absorption and exit charge. The Conext XW+ will not wait for any connected
Conext Solar Charge Controllers to transition to absorption or float.
Bulk Stage
Bulk charge is the first stage in the charging process and provides the batteries
with a controlled, constant current. Once the battery voltage rises to the bulk
voltage threshold, the charger switches to the absorption stage.
Absorption Stage
During the absorption stage, the Conext XW+ begins operating in constant
voltage mode and the DC charge current falls gradually as energy is returned to
the battery. For the first 60 minutes of the absorption stage, the Conext XW+
regulates the battery voltage at the Bulk Voltage setting. The voltage limit
used for the remaining time in this stage is the Absorption Voltage setting.
By default, the bulk and absorption voltage settings are the same for each
battery type. The voltage limit settings for bulk and absorption can be adjusted
independently if the battery type is set to Custom. The Conext XW+ transitions to
the float stage if either one of the following two conditions are met:
1. The charge current allowed by the batteries falls below the exit current
threshold, which is equal to 2% of the programmed battery capacity (for a
500 Ah battery bank, this would be 10 A), for three minutes.
2. The Conext XW+ has been in absorption for the programmed maximum
absorption time limit. The default is 3 hours, but the time limit is
programmable from 1 minute to 8 hours.
3–12
975-0713-01-01
Charger Settings Menu
Note: If there are DC loads on the batteries, the charger’s current may not
decrease to a level to transition to the next stage of charging. In this case, the
charger stays in absorption until the Absorb Time setting is reached.
To avoid having the charger remain in absorption for too long, adjust Absorb
Time on the Charger Settings menu. The timer begins at the start of the
absorption stage and terminates absorption charging if the charge current does
not decrease to below 2 per cent of the battery capacity before the Absorb
Time setting expires. The Absorb Time setting may be increased if the
charge cycle continually runs the complete Absorb Time in the absence of
DC loads. This is an indication of too large a battery bank for the selected
Absorb Time setting.
Boost Charging
Boost charging allows for better utilization of flooded lead acid batteries under
moderate cycling in off-grid or grid support applications. Boost charging
encourages a short duration charging voltage—above the gassing voltage—at
the beginning of the absorption charge state. Testing has shown that boost
charging improves battery performance by providing a regular mixing of the
liquid electrolyte. Boost charging specifically discourages capacity robbing acid
stratification and plate sulfation.
Boost mode charging can be enabled by selecting the Custom battery type and
by setting the bulk voltage higher than the absorption voltage. The multi-stage
charge algorithm then attempts to use the higher for the first hour of the
absorption stage, unless it is interrupted by the max absorption timer or exit
current threshold.
•
Boost charging encourages gassing of flooded lead acid batteries.
•
Boost charging is NOT recommended for AGM, GEL or any other
electrolyte-limited and/or valve-regulated sealed battery application.
•
Boost charging may result in higher than normal water consumption.
However, the benefits of boost charging are likely to be greater than the extra
watering effort. Check battery water levels at least once per month.
Boost charging has maximum benefit when used on batteries that experience
moderate cycling. An unoccupied cottage, for example, where batteries are full
the majority of the time may not benefit from boost charging, especially if battery
watering is difficult.
For equalize charging, a custom Boost charge profile can be configured if the
equalize method is not periodically used. Boost charging occurs in the first hour
of the absorption stage. It allows for a higher constant voltage than absorption
voltage to encourage a “mini equalize” each time the battery is charged.
The boost voltage is defined by the Bulk Voltage setting. The Conext system
will still allow manual equalize charging when the boost absorption voltage is
implemented. This is for advanced users only who pay strict attention to battery
maintenance and have an appropriately vented and protected battery
installation. Consult your battery manufacturer for appropriate voltages.
Float Stage
975-0713-01-01
Float charge maintains the batteries slightly above the self discharge voltage of
the batteries. The charge current in float is the current necessary to maintain the
batteries at the Float Voltage setting, limited only by the inverter's capability
or other settings that limit the inverter's maximum charge rate. Float charging
3–13
Configuration
reduces battery gassing, minimizes watering requirements (for flooded
batteries), and helps the batteries remain in a constant state of readiness. When
three-stage charging is selected, the charger automatically switches to the float
stage after the batteries have received a bulk and absorption charge (see Figure
3-4, “Three-Stage Battery Charging Cycle” on page 3–11). The batteries are
maintained at the default float voltage level for the selected battery type or the
voltage selected under Float Voltage on the Custom Battery Settings
menu.
Note: The battery voltage can increase above the float voltage when using an
external charging device such as charge controllers attached to PV arrays,
wind turbines, and micro-hydro generators. Be sure to include appropriate
charge management equipment with all external DC sources.
Two-Stage
Two-stage (or no float) mode differs from an ordinary three-stage charge mode in
that it does not continuously maintain the battery at float voltage. Instead, the
Conext XW+ begins charging the battery in bulk mode whenever the battery
voltage drops below the recharge level. While the battery voltage is above the
recharge level the inverter’s AC transfer switch continues to pass power through
from the utility grid to the loads, but does not actively charge the batteries.
Two-stage mode increases efficiency of utility connected systems by reducing
the amount of power consumed by the inverter and batteries compared to when
the battery is continuously maintained at Float Voltage. This feature can
extend the life of many batteries.
To allow grid support and sell mode to function after battery charging has
completed, it is recommended to set Charge Cycle to 2-stage.
Note: If the AC input stops or drops below the lower VAC limit (as set in AC
Settings), the complete multi-stage charge cycle (Bulk, Absorption, Float/No
Float) restarts once the source AC returns to an in-tolerance condition. If the
batteries are already nearly full, the charge cycle will take little time to complete.
3–14
975-0713-01-01
Charger Settings Menu
Bulk Stage
Battery
Voltage
Absorption Stage
(Boost Stage )
Absorption Voltage
2-Stage Charge
Custom Charge
Recharge
Voltage
Return to
Bulk Stage
Boost
Timer
1hr fixed
Time
Max Absorb Time - Dflt 3 hrs
(adjustable 1 min - 8 hrs)
Battery
Current
Max Charge
Rate
Absorption Exit Current
Threshold = 2% of
programmed AH capacity
Time
Figure 3-5 Two-Stage Charging Cycle
975-0713-01-01
3–15
Configuration
Note:
When the charge cycle is interrupted, the charger will restart charging at the
beginning of the multi-stage algorithm.
Exit Current Threshold can be effectively disabled by programming the
amp-hour capacity to 0. In this case, absorption will only exit once the
Max Absorption timer expires.
Charge current during equalize state (optional state not shown in graph) is
normally limited to 10% of the programmed amp-hour capacity setting. If this
setting is programmed to 0 Ah, the charge current during equalize is limited to
whatever is programmed for the max current limit of the unit (the default current
limit in equalize mode is 60 A).
Synchronized charge states are active when more than one charging device
(Conext XW+ or Conext Solar Charge Controller) is connected in the system via
the Xanbus network.
• The first unit (Conext XW+ or Conext Solar Charge Controller) to enter bulk,
causes the other chargers to enter bulk.
• The first Conext XW+ to enter absorption causes the others to enter
absorption.
• The last Conext XW+ ready to exit absorption triggers the others to exit
absorption and exit charge. The Conext XW+ will not wait for any connected
Conext Solar Charge Controllers to transition to absorption or float.
Equalize Charging
Many lead acid battery manufacturers recommend periodic equalize charging to
counter cell charge imbalance and capacity robbing sulphation. Equalizing
helps to improve battery performance and lifespan by encouraging more of the
battery material to become active.
Battery equalization is a controlled overcharging method that reduces sulphation
and mixes up stratified electrolyte and reactivates unused areas of the plate
material. Periodic equalizing can help to regularly restore flooded lead acid
batteries to a healthy state of charge.
Consult the battery manufacturer's recommendation for equalize charging
settings. Sealed lead acid, gel, AGM, and lithium ion batteries should not be
equalized unless recommended by the battery manufacturer. Consult the battery
manufacturer for optimal charging procedures when using sealed batteries.
When Equalize mode is enabled, the battery is charged from bulk to
absorption, and then to the equalize phase. The Conext XW+ will transition from
the absorption phase to equalize if:
3–16
•
The DC charge current is below 2% of the configured battery capacity
(for example, 8.8 A for 440 Ah).
•
The absorption time is exceeded (for example, 180 minutes).
975-0713-01-01
Charger Settings Menu
After absorption, the maximum charge DC current is set to 10% of battery capacity
(for example, 44 A for 440 Ah). See Figure 3-6. This constant current charge will
continue until the voltage has increased to the equalize voltage at which point the
battery will be regulated at the temperature compensated equalize voltage.
If the battery capacity is set to zero, the equalize charge current is fixed at
maximum 44 A (Ah=0 effectively disables the exit current criteria for the
absorption charge stage, making the absorption stage defined by time only).
Equalization duration is fixed at one hour.
Note: The graphs below apply only to flooded battery types.
Battery
Voltage
Bulk Stage
Absorption Stage
Equalize Stage
Equalize Voltage
Bulk Voltage=Boost Voltage
Absorption Voltage
Equalize mode
Custom Charge
Time
Boost Timer
1hr fixed
Max Absorb Time - Dflt 3 hrs
(adjustable 1 min - 8 hrs )
Battery
Current
Equalize Timer
1hr fixed
Absorption Exit Current
Threshold = 2% of
programmed AH capacity
10% of programmed AH
capacity
Time
Figure 3-6 Equalize Charging
975-0713-01-01
3–17
Configuration
Equalization Procedure
WARNING
EQUALIZATION HAZARD
Only flooded lead acid batteries should be equalize charged. Hydrogen and
oxygen gases are produced when batteries are equalized and can potentially
cause an explosion if ignited. Corrosive battery acid can escape.
Provide adequate ventilation and remove all sources of ignition, such as open
flames, sparks, electric motors, relays, light switches, etc.
Equalization voltage is significantly higher than nominal battery voltage.
Detach electronics that can be damaged by high DC voltage.
Failure to follow these instructions can result in death or serious injury.
To start equalizing the batteries, do one of the following:
•
On the Conext Setup menu, highlight Equalize and select Enable.
•
Press the Equalize button on the inverter information panel for five
seconds.
If the Conext XW+ will not perform the equalization, see Warning W96 “Cannot
Equalize” in Table 4-3 on page 4–11.
Note: In a system where more than one device is capable of equalizing batteries
(such as a system including multiple Conext XW+ units and Conext Solar Charge
Controllers), there is no system-wide equalization command for all devices. To
equalize with multiple devices, each would have to be enabled individually.
Alternatively, equalization can be performed using only one device. During the
equalization process, one device applies the equalization charge while the other
devices continue to operate in synchronized charge mode, typically in float (threestage charging) or no-float (two-stage charging).
3–18
975-0713-01-01
Charger Settings Menu
Custom Battery Settings Menu
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
NOTICE
BATTERY TYPE AND SETUP HAZARD
To avoid damaging your batteries during charging or equalization, consult
your battery manufacturer and associated documentation before setting a
custom battery type.
Failure to follow these instructions can result in equipment damage.
The Custom Battery Settings menu can be viewed if Custom is selected
as the Batt Type. This menu allows you to adjust charging and equalization
voltage for batteries with specifications that fall outside the default settings for the
battery types the Conext XW+ offers. You can also adjust the temperature
compensation constant for the battery temperature sensor on this menu.
Note: The default settings for configuring a custom battery type are based on
the default settings for a Flooded battery type.
Table 3-4 describes the options available on the Custom Battery Settings
menu.
Table 3-4 Custom Battery Settings Menu Items
Item
Description
Eqlz Support
Enables or disables the ability to enter an equalization cycle. Refer to the battery
manufacturer’s specifications to determine whether equalization is recommended.
Eqlz Voltagea
Selects the equalization voltage. Consult your battery manufacturer for the
equalization voltage setting.
Bulk Voltage
Sets the bulk voltage for a custom battery type.
Absorb Voltage Sets the absorption voltage for a custom battery type.
Float Voltage
975-0713-01-01
Sets the float voltage for a custom battery type.
3–19
Configuration
Table 3-4 Custom Battery Settings Menu Items
Item
Description
Batt Temp
Comp
Sets the battery temperature compensation for a custom battery type. This setting is
the reference that the BTS uses to adjust the charging voltage when the temperature is
above or below 25 °C.
The following voltage thresholds are not temperature compensated:
• Grid Support entry voltage
• Grid Support exit voltage
• Low Battery Cut-Out trigger voltage
• Low Battery Cut-Out condition clear voltage
The following battery voltage set points are temperature compensated:
• Float exit voltage
• Bulk exit voltage
• Float and Gassing voltages used in Constant Voltage exit criteria
• Recharge Volts
• Charge Control target voltage
Max Battery
Discharge
Current
Each Lithium Ion battery has an internal contactor and over load protection which is
based on maximum current. If exceeded, the contactor may open, resulting in
complete isolation of the battery pack, thus removing power to the Conext XW+. In this
case the Xanbus communication as well devices powered from the Conext XW+ could
become unusable. When the XW current draw exceeds the set value for a period
defined in “Max Battery Discharge Current Timer”, the Conext XW+ disables INV
output.
Max Battery
Discharge
Current Timer
Allows the Conext XW+ current in Invert mode to exceed the Max Battery Discharge
Current limit for inrush periods to startup loads such as pumps/motors. When the timer
is expired, the XW shall disable INV output.
a.The Eqlz Voltage setting is displayed when Eqlz Support is set to On.
For default settings, see “Custom Battery Menu” on page B–4.
3–20
975-0713-01-01
AC Input Settings
AC Input Settings
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
The AC Settings menu configures the voltage and frequency limits for
AC port 1 (Grid) and AC port 2 (Gen). These are the limits at which the Conext
XW+ considers AC input voltage qualified—that is, suitable for charging batteries
or passing through to loads attached to AC OUT. If the input voltage is not
qualified according to these settings, the Conext XW+ reverts to inverting
external DC energy to AC energy for loads on AC OUT.
Table 3-5 AC Settings menu
Item
Description
AC Priority
Sets the priority for the AC input source (AC1 or AC2) for qualification and transfer.
In systems that use both utility grid (AC1) and generator (AC2) input, it is recommended that
you set AC Priority to AC1. Assuming the generator is intended for occasional use only,
the Conext XW+ will use utility power. It will use the generator only if AC1 is unavailable, and
if the generator is running.
AC1
Breaker
Sets the AC1 (Grid) breaker size, based on the size of the breaker installed upstream
from the AC1 connection port. The installed breaker size must not exceed the capacity of
the upstream distribution panel. The Conext XW+ limits the maximum current draw on
AC1 to this setting by derating its charging current to an equivalent of 80% of the AC1
breaker setting.
However, if the connected loads on AC OUT exceed the AC1 breaker setting, the
upstream AC breaker trips. The breaker may not trip if grid support is enabled and
battery voltage is above the Grid Supp Volts setting, or if peak load shave is enabled
and the load shave time window is active.
AC1 Lo Volt
Minimum acceptable input voltage level from the utility grid.
AC1 Hi Volt
Maximum acceptable input voltage level from the utility grid.
AC1 Lo Freq Minimum acceptable utility grid input frequency.
AC1 Hi Freq Maximum acceptable utility grid input frequency.
975-0713-01-01
3–21
Configuration
Table 3-5 AC Settings menu
Item
Description
AC2
Breaker
Sets the AC2 (Gen) breaker size, based on the size of the installed AC breaker upstream
from the AC2 connection port. The installed upstream breaker and the AC2 breaker set
point must not exceed the capacity of the generator. The Conext XW+ limits the maximum
current draw on AC2 by derating its charging current to an equivalent of 80% of the AC2
breaker setting.
However, if the connected loads on AC OUT exceed the AC2 breaker setting, the
upstream AC breaker trips. The breaker may not trip if Gen Support is enabled and Gen
Amps is configured not to exceed the generator’s rated output current.
AC2 Lo Volt
Minimum acceptable input voltage level from the generator.
AC2 Hi Volt
Maximum acceptable input voltage level from the generator.
AC2 Lo Freq Minimum acceptable generator input frequency.
AC2 Hi Freq Maximum acceptable generator input frequency.
For default settings, see “AC Menu” on page B–4.
Grid Support Settings
The Grid Support Settings menu contains configuration options for
grid-tie operation. To enable these settings, Grid Support must be enabled in
the Setup menu (see “Conext XW+ Setup Menu” on page 3–2).
In grid support mode, the Conext XW+ supports the utility grid by limiting the
power drawn from the utility to close to zero. This mode is desirable for using
excess energy from auxiliary DC sources like PV, while still maintaining a
charged battery bank. No power is sold to the utility in this mode.
Note: Grid support and Sell functions are modes of operation that are subject to
local and/or national grid interconnection requirements in most jurisdictions. It is
the responsibility of the installer and system operator to make sure that all
applicable procedures and technical requirements are complied with before
turning on either of these modes. The interconnect codes and standards with
which the Conext XW+ complies are listed in the Specifications section on
page A–7.
Note: Upon startup, the Conext XW+ does not enable grid support functions
for five minutes (300 seconds). During this period the Conext XW+ connects to
AC input and determines whether the utility grid voltage and frequency are
stable and within nominal range. If Grid Support is enabled, the inverter
information panel also displays a 300 second countdown during this period. For
more information, see “Islanding Protection” on page 1–6.
Note: In grid support mode, the Conext XW+ should not draw a large amount
of current from the grid. If the Conext XW+ is drawing more than expected, it is
important to note that it cannot distinguish between real power and reactive
power. Large current draw will only affect reactive power and not real power,
and utility companies generally only charge by real power consumed.
3–22
975-0713-01-01
Grid Support Settings
Table 3-6 Grid Support Settings Menu
Item
Description
Grid Supp Volts
Sets the level to which the batteries will be discharged when the inverter is selling
power to the grid or supporting the power grid by providing additional power to the
loads on AC Out. This setting is not adjusted for the battery temperature even if the
temperature sensor is installed.
Sell
Turns sell mode on and off. When Sell is enabled, the Conext XW+ AC output is
divided between powering loads and delivering power to the utility grid. Sell mode
requires the battery voltage to be above Grid Supp Volts. All configurations must
comply with local and national electrical codes.
Max Sell Amps
Sets the maximum AC amps allowed to be delivered to the utility grid from a solar array
and/or the batteries during grid-tie operation (except from AC-coupled grid-tied
inverter). This setting is only used if Sell is set to enabled
The Max Sell Amps must be less than 80 percent of the selected AC1 breaker
setting. If set higher, the breaker setting will override the Max Sell Amps setting to
avoid tripping the breaker.
Load Shave
Enables or disables the Load Shave feature. Load Shave allows the Conext XW+ to
support the grid in powering local loads during a defined window of time (set using
Load Shave Start and Load Shave Stop). When in this mode, the Conext XW+ operates
until the batteries discharge to the LBCO threshold, after which the unit starts charging
the batteries. The charger is automatically blocked during the Load Shave time
window.
Load Shave
Amps
Sets the maximum amount of current that can be drawn from the AC1 (grid) input by
the loads and battery charger combined. This setting determines the amperage level
at which the inverter starts drawing power from the batteries to add to the utility power
to meet the demand of the loads.
Typically, this value is set to the size of the AC circuit breakers feeding the inverter’s AC
input or the peak usage surcharge threshold imposed by the utility, if applicable.
Load Shave
Start
Sets the time of day that the Load Shave feature operates. This feature is suited for
regions where local utilities impose peak usage surcharges. The inverter provides load
shaving power as long as battery voltage is 2 V or more above Low Batt Cut Out.
Load Shave
Stop
Sets the time of day that the load shave feature stops operating. If Load Shave is set
to enabled and Load Shave Start and Load Shave Stop are set to the same
time, the Conext XW+ load shaves continuously.
For default settings, see “Grid Support Menu” on page B–5.
Prioritizing and Managing Energy Sources with Advanced Features
The Conext XW+ can be programmed to control how and when to use utility
power. Advanced features allow management of peak loads and time-of-use
billing.
975-0713-01-01
3–23
Configuration
Grid Support
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
Note: Grid support and Sell functions are modes of operation that are subject to
local and/or national grid interconnection requirements in most jurisdictions. It is
the responsibility of the installer and system operator to make sure that all
applicable procedures and technical requirements are complied with before
turning on either of these modes. The interconnect codes and standards with
which the Conext XW+ complies are listed in the Specifications section on
page A–7.
The grid support mode allows the Conext XW+ to support local loads by
converting excess capacity from external DC sources connected to its battery
bank. Examples of external DC sources are solar charge controllers and
batteries.
For Grid Support to function, Grid Support must be enabled on the Setup menu
and the battery voltage must be above the Grid Supp Volts setting.
There are two modes of operation within Grid Support.
Grid Support enabled, Sell disabled In this mode, available excess DC power
is converted and used to power local loads. No power is exported to the utility. If
the local load demand exceeds the available power from the external DC
sources, power is then drawn from the utility to support the load. However, if the
local load demand is less than the power available from external DC sources, the
net excess power from the external DC sources is not converted and hence not
used.
Grid Support enabled, Sell enabled In this mode, all available excess DC
power is first used to power local loads. Any remaining power is exported to the
utility grid.
Grid Support and Battery Charging
Charge Cycle
settings
3–24
With the charger enabled, the Conext XW+ enters Grid Support mode only after
completing a charge cycle when it is first powered up or reconnected to the grid.
It is recommended to set the Charge Cycle to 2-stage (default) to allow Grid
Support to function immediately after the Absorption charge stage. See “Charger
Settings Menu” on page 3–9.
975-0713-01-01
Grid Support Settings
Grid Support
modes
Grid Support can be configured to operate in one of two modes:
Grid Support with DC Sources Not Communicating Over Xanbus This setup
is suitable for use with DC sources (such as wind turbines, DC generator sets,
fuel cells, and so on) that do not communicate with the Conext XW+ through
Xanbus or for mixed systems which have both Xanbus-connected Conext Solar
Charge Controllers and other DC sources (such as those listed above).
Grid Supp Volts is set 0.5 volts below the voltage provided by the DC source
(typically the float voltage setting of the DC source or charge controller).
Schneider does not provide support for these energy sources.
In a ‘fixed’ battery voltage system configuration, the Conext XW+ manages the
battery voltage to the Grid Supp Volts setting. This is done by converting the
available DC power to AC power to support the AC loads attached to the inverter
output or exports to the utility grid (AC1). Because the battery bank voltage may
not reach bulk/absorption voltages in this mode, it is recommended to
occasionally force a full charge cycle by either temporarily disabling grid support
or forcing a bulk charge cycle from the grid (see “Force Chg” on the“Conext XW+
Setup Menu” on page 3–2.)
Enhanced Grid Support with Conext MPPT Solar Charge Controllers This
setup is suitable for Conext Systems with only Conext MPPT Solar Charge
Controller(s) networked to Conext XW+ units through Xanbus. In this
configuration, Grid Supp Volts is set above the charge controller’s
Equalization voltage (for example, 64 volts).
In an enhanced grid support set up the Conext XW+ automatically tracks the
Conext MPPT Solar Charge Controller voltage as it transitions through charge
states (from bulk to absorption to float). This allows the system to execute a
complete battery charge cycle while still converting excess DC power to AC
power to support the AC loads or be exported to the utility grid. In doing so, the
Conext XW+ only uses excess DC not required by the battery or used to support
local AC loads and sells it to the grid, thereby maximizing the use of the PV array.
Since this set up allows the battery bank voltage to reach absorption levels
(when PV harvest is adequate), the state of health of the battery is improved. The
975-0713-01-01
3–25
Configuration
sell entry and regulation voltage level is 1 V below absorption and float of the
Conext Solar Charge Controller set points. The exit from sell is 1.5 V below
absorption and float of the Conext Solar Charge Controller set points.
Fixed Battery Voltage
Enhanced Interactive Mode
Battery
Voltage
Fast Re-Entry Sell Mode: no [Tdelay ]
[Grid Supp Volts]+2V
Battery Voltage Regulation
[Grid Supp Volts]
Re-Entry Sell Mode +[Tdelay ]
Exit Sell Mode +[Tdelay ]
[Grid Supp Volts]-0.5V
Advanced/Adv Features config :
[Tdelay ]= 20 sec default
[Tdelay ]=Enable : 40 sec
Vbat>GSV
[entry]
Vbat<GSV
[exit]
[V]
Figure 3-7 Grid-tie Sell Mode
Charger Block
The charger block feature halts charging on AC1 (Grid) for a period of time each
day. This period of time is defined by the Chg Block Start and
Chg Block Stop settings. In areas where the utility charges variable rates for
electricity, it is preferable to use utility power for charging only during non-peak
hours. Charger block can prevent utility power from being used for battery
charging during peak billing periods.
During the time period set between Chg Block Start and Chg Block Stop,
AC1 (Grid) input continues to be passed through to the loads. Inverter operation
remains unaffected during the charger block period.
During the charger block period, no charging on AC1 occurs even if the batteries
discharge below ReCharge Volts setting. However, a generator connected to
AC2 (in the absence of utility/AC1 power) or a Conext Solar Charge Controller
may charge batteries during the charger block period. AC priority must be set to
AC2 to charge batteries with a generator connected to AC2 during the charger
block period.
If the charger is operating (that is, in float, absorption, bulk, or equalize stage) at
the Chg Block Start time, charging on AC1 stops immediately and the
charger enters an idle state identical to no float (see “Two-Stage” on page 3–14).
When the charger block period is over, the charger does not resume the charge
stage that was interrupted. Instead, if the batteries are above the
ReCharge Volts setting, the charger remains idle.
If the battery voltage falls below the ReCharge Volts setting during the
charger block period, the Conext XW+ begins a new charge cycle with the bulk
stage after the charger block period has expired (at the Chg Block Stop time).
3–26
975-0713-01-01
Grid Support Settings
For example, charger block is set to start at 5:00 PM and end at 8:00 PM. If the
Conext XW+ is charging from AC1, charging stops at 5:00. When charger block
ends at 8:00, the Conext XW+ does not automatically resume charging. The unit
first measures the battery voltage. If the voltage is below the ReCharge Volts
setting, then the Conext XW+ starts a new charge cycle from bulk. If the battery
voltage is above the ReCharge Volts setting, the Conext XW+ remains idle
and continues passing through AC to the loads. The Conext XW+ also keeps
measuring the battery voltage as before to determine whether to start a new
charge cycle.
Peak Load Shaving (PLS)
Many utilities impose a surcharge on their customers based on the peak load
used by a facility. To reduce utility peak demand charges, the inverter can be
configured (using the Load Shave Amps setting) to limit the maximum draw the
AC loads place on the utility. The inverter can be programmed to provide power
above a specified level to avoid the surcharge. When the utility current draw
reaches the maximum level, the inverter assists by sourcing power from the
batteries to the loads.
For PLS to be effective, all loads must be connected to the inverter. For large
loads, multiple (or stacked) inverters may be required.
To help the batteries supplement the power requirements of the connected load,
an additional source of power (solar, wind, or hydroelectric) is recommended.
The default PLS setting for Time in Float is zero. In this case, PLS is only entered/
exited as programmed within the time window.
When the Time in Float is different than zero, PLS shall start only if the battery
amperage remained at the specified level for the configured time.
Example: Load Shave=Enabled, LoadShaveAmps=10 A,
LoadShaveStart=6:00pm, LoadShaveStart=9:00pm, Time in
Float=60 min, PLS Dly 2h= Enabled.
With these example settings, the Conext XW+ would enter PLS within the
configured window of time only if the battery was charged from MPPT in Float
(including Absorption) for 2 hours.
Time-of-Use Metering
Utilities use time-of-use metering to determine utility charges during peak usage
hours and to impose a surcharge. The Conext XW+ can be configured (using the
Load Shave Start, Load Shave Stop and Charger Block settings) to
overcome these peak charges by using utility power to charge the battery bank
during the inexpensive energy hours and consuming the battery energy during
expensive energy hours.
For example, if Charger Block is set between 9:00 AM and 10:00 PM and
Load Shave is set between 6:00 PM and 9:00 PM, charging on AC1 stops at
9:00 AM and continues to pass utility AC through to the loads. If charging is
required during the charger block period, and AC Priority is set to AC2, the
Conext XW+ can use any AC source connected to AC2. Loads will transfer to the
AC source on AC2 as well. The inverter connects to the utility grid at 6:00 PM and
supports loads using the batteries. The inverter continues to run until 9:00 PM.
975-0713-01-01
3–27
Configuration
The Conext XW+ then stops supporting the utility grid and passes utility AC
through to the loads. At 10:00 PM utility AC begins maintaining the batteries
based on the battery charger settings.
The above example allows an external renewable energy source to be utilized as
a primary charging source during a desired time window. The charger
(using utility AC connected to AC1) can then be used to supplement the battery
charging when the utility rates are low.
When using the system for time-of-use metering, the system should be designed
with a battery capacity large enough to support loads during the entire peak rate
period without reaching the Low Batt Cut Out setting.
Note: If the batteries reach the Low Battery Cut Out setting, the Conext XW+
automatically reconnects to the utility grid to maintain the connected load.
Self-Consumption
PLS can also be used with time-of-use metering to support self-consumption. In
the self-consumption mode of operation, the Conext XW+ delays Peak Load
Shave mode by a fixed time of 2 hours. This is done by allowing a priority for the
MPPT solar charge controller to charge the battery bank.
This configuration can be selected under the Conext XW+ menu by selecting
Advanced Settings/Advanced Features/PLS DLY 2H=Enabled. The
default setting for PLS DLY 2H is Disabled.
Generator Support Settings
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
Generator support allows power to be automatically drawn from the batteries to
assist an AC generator on AC2 to support heavy loads on AC OUT (loads that
exceed the available power from the generator).
Generators have a limited output current and it is possible to reach this limit when
operating heavy loads. The Conext XW+ is designed to assist the generator
when heavy current demands load down the generator by supplying additional
power from the batteries.
3–28
975-0713-01-01
Generator Support Settings
In addition, the battery charger can reduce its charging current to the batteries
so the combined AC current required for charging and the total load current do
not exceed the capacity of the generator or trip its output breakers or fuses.
For imbalanced loads and small generators, the generator support feature may
be used. When GenSupp Plus is enabled, the Conext XW+ will connect the
center of its transformer to the AC2 input neutral to act as a load balancing
transformer. Generator support is most effective for generators under 5 kW. See
Table 3-12, “Advanced Features Menu” on page 3–41.
Note: The pass through running and startup (peak) currents of generators
attached to AC2 are limited to the maximum current limits of the Conext XW+.
Note: If generator support is used with generators larger than 5 kW, it is
possible for current to recirculate. In this case, the efficiency losses would
outweigh the benefit of generator support.
Table 3-7 Gen Support Menu Values
975-0713-01-01
Setting
Description
GenSupp
Mode
Turns the Generator Support feature on and off.
GenSupp
Amps
Sets the generator load level at which the Conext XW+
supplies power from the batteries to support the generator.
3–29
Configuration
For default settings, see “Gen Support Menu” on page B–5.
Gen Support Mode
Figure 3-8 Gen Support Mode Graph
Auxiliary Output Settings
The Aux menu allows you to enable and set the auxiliary output. The auxiliary
output provides 12 volts DC at 250 milliamps to power a relay, indicator light, or
alarm.
Note: Changing the Trigger Level resets the auxiliary output. If an auxiliary
output trigger is active, changing the trigger level will clear the trigger.
Table 3-8 Aux Menu Values
3–30
Setting
Description
Manual Aux
Sets the state of the auxiliary output. ManualOn or ManualOff
allow manual control of the Auxiliary Output. When set to
Automatic, a trigger source can then be selected.
Active Lvl
Sets the mode (polarity) of the auxiliary output. When triggered,
the output can be active high (12 V output turns on) or active low
(output is high until the trigger turns it off).
975-0713-01-01
Auxiliary Output Settings
Table 3-8 Aux Menu Values
Setting
Description
Trigger Src
Sets the desired condition (Trigger Source) to activate the
auxiliary output. The Trigger Source options are LowBattV,
HighBattV, LowBattTemp, HighBattTemp, and Fault.
Trigger
Level
Sets the voltage or temperature level (depending on the selected
trigger source) at which the auxiliary output is activated. If the
selected Trigger Source is a Battery Voltage, the range also varies
according to the nominal battery voltage of your system.
Trigger
Delay
Sets a delay period between when the trigger occurs and when
the auxiliary output is activated.
Clear Level
Sets the voltage or temperature level (depending on the selected
trigger source) at which the auxiliary output becomes inactive.
Clear Delay
Sets a delay period between when the Clear Level setting occurs
and when the auxiliary output becomes inactive.
Charge
Bulk Exit
Exits charge bulk mode. In charge bulk mode, the XW operates
as a constant power source to the battery bank.
Charge
Absorption
Exit
Exits charge absorption mode and starts the following mode,
depending on whether the unit is set to two or three-stage charge.
Heatsink
Both high and low end within the heatsink temperature range are
temperature configurable. The voltage will be adjusted accordingly when the
temperature goes out of range (e.g. the voltage is lowered when
the temperature gets too high).
State of
Charge
(SoC)
This feature works only in conjunction with the Conext Battery
Monitor. A voltage change is triggered when the state of charge
falls outside of the range of 25-90% of total battery charge. When
triggered, the output can be active high (12 VDC output turns on)
or active low (output is high until the trigger turns it off).
TOD (Time
of Day)
Time setting. Can be set to a value between 12:00 AM and 11:59
PM.
For default settings, see “Aux Menu” on page B–6.
Trigger Source
Descriptions
Low Batt Voltage Activates the auxiliary output when the battery voltage falls
below Low Batt Voltage after the trigger delay time. The auxiliary output
turns off when the battery voltage rises above the clear setting after the Clear
Delay time. Use this setting if the auxiliary output needs to control a relay to
disconnect loads from a battery or to activate a low battery voltage alarm such as
a buzzer or light.
High Batt Voltage Activates the auxiliary output when the battery voltage rises
above Hi Batt Voltage for the trigger delay time. The auxiliary output turns
off when the battery voltage falls below the clear setting for the Clear Delay
time. This setting is useful for:
975-0713-01-01
3–31
Configuration
•
Installations that have another external charging source such as a wind
generator or hydro generator connected directly to the batteries. The Conext
XW+ auxiliary output can control a relay to disconnect the external charging
source from the battery or control a relay to turn on a diversion load.
•
Activating a high battery voltage alarm such as a buzzer or light.
•
Activating a vent fan to ventilate the battery compartment.
Low Batt Temp Activates the auxiliary output when the battery temperature
falls below Low Batt Temp for the trigger delay time. The auxiliary output turns
off when the battery temperature rises above the clear setting for the
Clear Delay time. Battery temperature is measured with a battery temperature
sensor. Do not use this setting if a battery temperature sensor is not installed.
High Batt Temp Activates the auxiliary output when the battery temperature
rises above Hi Batt Temp for the trigger delay time. The auxiliary output turns
off when the battery temperature falls below the clear setting for the
Clear Delay time. Battery temperature is measured with a battery temperature
sensor. Do not use this setting if a battery temperature sensor is not installed.
With this setting, the auxiliary output can turn on a fan to vent the battery
compartment.
Fault Activates the auxiliary output when a fault occurs. The auxiliary output
clears when the fault is cleared.
State of Charge (SoC) fThis feature works in conjunction with the Conext
Battery Monitor. This auxiliary output is triggered when the state of charge falls
outside of the range of 25-90% of total battery charge.
Multi-Unit Config Menu
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
The Multi-Unit Config menu configures the Conext XW+ to operate as a
part of a multi-unit installation.
When installing a multi-unit system, each setting on the Multi-Unit Config
menu (except for Dev Name) must be configured for each Conext XW+ in the
system. The settings should be configured in the following order:
•
•
3–32
Dev Number
Inverter Mode
975-0713-01-01
Multi-Unit Config Menu
•
Connections
Note: Accessing this menu automatically places the Conext XW+ in standby
mode and de-energizes the circuits on inverter output. When entering the
Multi-Unit Config menu, the unit identifies itself by flashing the front panel
lights. After exiting the Multi-Unit Config menu, the Conext XW+ returns to
operating mode and the front panel lights stop flashing.
975-0713-01-01
3–33
Configuration
Table 3-9 Multi-Unit Config Menu
Item
Description
Default
Range
Dev Name
Allows customization of the default device name. This
setting is optional and does not affect operation. See
“Setting the Device Name” on page 3–34.
n/a
n/a
Dev Number Allows setting of a unique unit number in a multi-unit system.
See “Setting the Device Number” on page 3–35.
00
00–31
Inverter
Mode
1PhMaster
For singlephase
models: 1Ph
Master, 1Ph
Slave. For
three-phase
systems,
see “ThreePhase
Configuratio
n” on
page 3–36.
n/a
n/a
For a multi-unit, single-phase system to operate, one Conext
XW+ must be configured to 1Ph Master and the rest as 1Ph
Slave, otherwise a system-wide fault is asserted.
For a three-phase system, see “Three-Phase Configuration”
on page 3–36.
Connections Select to display the Connections menu.
See “Connections Menu” on page 3–38.
Setting the Device Name
The Dev Name setting allows you to customize the name of the Conext XW+ as it
is displayed on other screens and menus.
The available characters are:
•
A to Z
•
a to z
•
0 to 9
•
space
Note: Increasing the number of characters in a device name may cause other
text on the same line to run off the edge of the screen. Device names should be
limited to 10 characters or less.
To customize the Conext XW+ name:
1. On the device setup menu, select Advanced Settings.
If Basic Settings appears instead of Advanced Settings on the
device setup menu, display Advanced Settings by pressing
Enter + Up arrow + Down arrow at the same time.
2. Select the Multi-Unit Config menu.
3. Select Dev Name.
4. Press Enter.
The last letter of the Conext XW+ name is highlighted.
3–34
975-0713-01-01
Multi-Unit Config Menu
5. Begin customizing the device name.
•
To change the character, press the up or down arrow button. Holding
down the button causes the characters to scroll more quickly.
•
To delete the character, press Exit.
•
To add characters, press Enter.
6. When the correct character is shown, press Enter to select it.
7. After pressing Enter to select the last character of your customized device
name, press Enter again to return to the menu.
Note: It is also possible to change the device name using the Conext System
Control Panel and Conext Configuration Tool. Please refer to the respective
Owner’s Guides for these products for further information.
Setting the Device Number
When several devices of the same type are installed in the Xanbus network,
setting the device number is required to give a Xanbus-enabled device a unique
identity. When each identical device has a unique number, the Conext SCP can
correctly identify and display status information for each device. A device
number consists of two digits ranging from 00 (default) to 31.
If only one of each type of device is installed in the networked power system, a
device number is not needed. However, setting the device number to a value
other than 00 is recommended in case you need to use the Restore Defaults
command (which resets the device number to 00). After performing the
command, checking that the device number has returned to 00 indicates that the
command was successfully completed.
To set the Conext XW+ device number:
1. On the Conext XW+ Setup menu, select Advanced Settings.
If Basic Settings appears instead of Advanced Settings on the
Setup menu, display Advanced Settings by pressing
Enter + Up arrow + Down arrow simultaneously.
On the Advanced Settings menu, select Multi-Unit Config and
press Enter.
2. On the Multi-Unit Config menu, select Dev Number. See Figure 3-9.
3. Press Enter to highlight the instance number.
4. Use the up and down arrow buttons to adjust the two-digit identifier number.
5. Press Enter.
XW+ 8548 01:Multi
Dev Number
[XW1]
[01]
[1PhSlave]
Figure 3-9 Setting a Device Number
975-0713-01-01
3–35
Configuration
Three-Phase Configuration
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
When installed in a three-phase system, the Conext XW+ requires a designated
master unit on each phase. If there is not a master unit on each phase, a systemwide fault (F66) is asserted. Before setting up a three-phase system, confirm that
the Conext XW+ units have been installed and wired for three-phase. See the
Conext XW+ Installation Guide for further information.
The Conext XW+ is capable of supporting three-phase systems and supports
different configurations for grid-tie and off-grid applications. The Conext XW+ will
support either three units or six units in a three-phase grouping when deployed
as a grid-tie backup system. The power adjustment on each phase must be
made at the time of commissioning and under supervision of a utility
representative. Off-grid deployment of six or more Conext XW+ units in a single
three-phase grouping is not supported.
For off-grid applications, the Conext XW+ is deployed in clusters of three units
(one per phase) for three-phase off-grid systems. Up to four clusters can support
off-grid using an external AC contactor system for managing the AC bus line
between sources AC and consumption loads. For the installation, setup and
commissioning of multi-cluster systems, refer to the Conext XW+ Installation
Guide.
Note: The XanBus communications protocol supports a maximum of twelve
Conext XW+ units in a single network.
To set up a three-phase system:
1. Follow the instructions in the Conext XW+ Installation Guide to Daisy chain
XW-phA, XW-phB, and XW-phC at each unit’s AC sync port and connect an
AC sync cable between the second AC sync port in unit 2 and an AC sync
port in unit 3.
2. On the Conext SCP, select XWabcd 00 > Advanced Settings > MultiUnit Config (where abcd is the model number 6848 or 5548).
3. Optionally, change the device name or device number. Device numbers are
suggested to facilitate identifying devices on the system as well as phase
association from a device’s name and number. Naming devices may be
3–36
975-0713-01-01
Multi-Unit Config Menu
customized as desired. Conflicting device names are allowed and will not
cause faults in the system, however giving them unique names is highly
recommended.
4. Under Invtr Mode, select:
•
3Ph L1Master for unit 1 or Phase A
•
3Ph L2Master for unit 2 or Phase B
•
3Ph L3Master for unit 3 or Phase C
5. Optionally, up to one additional Conext XW+ may be installed in parallel on
each phase (for grid-tie systems only). Additional units are called
“slave units”. This configuration allows for a maximum of 6 units in a single
grouping. For larger groupings of up to 12 total units, see the Off-Grid
Systems Guide for Conext XW+ available at www.schneider-electric.com/
solar. The slave unit on each phase (parallel) must be configured as
3PhL1Slave, 3PhL2Slave, and 3PhL3Slave respectively. A maximum of
two units per phase is allowed. Under Invtr Mode, select:
•
3Ph L1Slave for unit 4 or Phase A
•
3Ph L2Slave for unit 2 or Phase B
•
3Ph L3Slave for unit 3 or Phase C
6. Confirm that the Grid or Gen wiring has the correct A, B, C phase sequence
with the three Conext XW+ Inverter/Chargers. If the phase sequence is
incorrect, the Conext system will not qualify the input AC voltage.
7. Put the wiring compartment cover back in place, and then power up the
converted units. Perform an AC voltage measurement in invert mode. Make
sure the output voltage is within 220 – 230 VAC.
Table 3-10 Example Three-phase Inverter Assignments
Line or Phase
Inverter Mode
Role Assignmenta
Line-1 or Phase-A 3Ph L1 Masterb Phase-A or Line-1
Master
3Ph L1 Slavec
Line-2 or Phase-B 3Ph L2 Master
3Ph L2 Slave
Line-3 or Phase-C 3Ph L3 Master
3Ph L3 Slave
Suggested
Device
Number
10
Phase-A or Line-1 Slave
11
Phase-B or Line-2
Master
20
Phase-B or Line-2 Slave
21
Phase-C or Line-3
Master
30
Phase-C or Line-3 Slave
31
a.Each phase can support one master unit and one slave unit.
b.The L1 Master is also the master inverter/charger for the entire system. The system master
broadcasts phase synchronizing pulses through its sync port, and each phase master controls the other units on its respective phase.
c.The slave unit in each phase is optional.
Figure 3-10 Three-Phase Configuration Example
975-0713-01-01
3–37
Configuration
Connections Menu
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
The Connections menu contains additional settings to allow the Conext XW+ to
function as part of a multi-unit networked system.
Setting the connections for a Xanbus-enabled device provides a way of
identifying non-network associations for Xanbus-enabled devices (see Figure 311) and enhancing networked power system management. When connections
are set, devices of different types become associated and can share sources,
e.g. a common DC input source, or a common grid/generator source.
In multi-unit networked systems, multiple inverter/chargers can be stacked to
produce increased charge current. To achieve this functionality, the devices must
be configured to the same DC connection, such as House Battery Bank 1. The
units will collaborate on battery charging by communicating with other units on
this shared DC connection.
Note: When configuring clusters of three Conext XW+ units (or a grouping of up
to six in a grid-tie application), each cluster’s DC connections must be set to the
same battery bank. If one of the units is set with a different DC connection, a
system configuration fault (F66) occurs.
Table 3-11 Connections Menu
3–38
Item
Description
DCConn
DC Input and Output connection. This is the common DC
connection shared between inverter/chargers, charge controllers,
and referenced by the Conext Automatic Generator Start.
ACOut
AC Output connection. This connection specifies a common AC
output connection shared between inverter/chargers. The AC Out
connection must be configured so that the Conext XW+ units know if
they are connected to the same load or not. If connected to the
same load, select the same name on all units; for example,
ACLoad1. If connected to separate load banks, use different names
for the AC Out connection on each unit; for example, ACLoad1 on
one unit and ACLoad2 on the other.
AC1
AC1 input connection. This connection specifies a common AC
Line 1 input for multiple inverter/chargers.
975-0713-01-01
Copying Settings From Another Unit
Table 3-11 Connections Menu
Item
Description
AC2
AC2 input connection. This connection specifies a common AC
Line 2 input for multiple inverter/chargers.
For default settings, see “Connections Menu” on page B–6.
AC OUT
L
N
AC
LOAD
AC IN
AC IN
L
L
N
GRID
(AC1)
N
GEN
(AC2)
AC Out Connection:
Select AC Load 1 to 10
AC2 Connection:
Select Grid 1 to 10,
Gen 1 to 10
AC1 Connection:
Select Grid 1 to 10,
Gen 1 to 10
DC Connection:
Select House Battery 1 to 6
Figure 3-11 Conext XW+ Connections Representation
Copying Settings From Another Unit
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
The Copy from command allows quick configuration of an Conext XW+. After
selecting another Conext XW+ in the system to copy settings from, common
parameters are copied from the selected Conext XW+ to the Conext XW+ being
configured.
The following settings are copied from the selected unit:
975-0713-01-01
3–39
Configuration
•
Inverter Settings
•
Charger Settings
•
AC Settings
•
Grid Support Settings (except the Sell setting)
•
Gen Support Settings
The following settings are not copied between units:
•
Inverter Mode
•
Device Number
•
Device Name
•
Auxiliary Output settings
Restoring the Conext XW+ to Factory Default Settings
The Restore Defaults command returns the Conext XW+ to factory default
settings. After using the Restore Defaults command, the Conext XW+ is no
longer configured for the power system.
NOTICE
RESTORING DEFAULTS
Do not restore defaults while the Conext XW+ is operating. De-energize the
power system and disconnect the Conext XW+ AC input before restoring
defaults. Reconfigure the Conext XW+ before reconnecting the AC input and
re-energizing the power system.
Failure to follow these instructions can result in equipment damage.
To restore Conext XW+ default settings:
1. On the Advanced Setup menu, select Restore Defaults.
Warning W252 appears, asking to confirm the command.
2. To cancel the command, press Exit. To continue with the
Restore Defaults command, press Enter.
Note: If a warning is already active in the system, selecting Restore
Defaults brings up the Warnings list, with warning W252 at the top.
Press Enter to view W252 and continue with the restore defaults process.
3–40
975-0713-01-01
Using the Advanced Features
Using the Advanced Features
WARNING
ADVANCED CONFIGURATION HAZARD
Advanced menu settings should be used by qualified personnel only.
Three phase operation should be configured by qualified personnel only.
Consult with the local utility before enabling Conext XW+ sell mode or grid
support functions.
Do not change these settings unless you are under the supervision and
direction of qualified personnel.
Failure to follow these instructions can result in death or serious injury.
Table 3-12 Advanced Features Menu
Item
Description
RPO
Enables or disables the remote power off function. Enable this
setting if an external switch has been connected to the Conext
XW+ auxiliary port. See the Conext XW+ Installation Guide for
more information about the auxiliary port.
Power Save
When enabled, Power Save mode can reduce tare loss from the
battery by reducing output from 230 volts to 210 volts when the
loads are less than 100 watts. When the Conext XW+ detects
loads higher than 100 watts, the inverter/charger produces the
full 230 volts. Power Save mode is disabled by default.
Sell Dly 40s
When enabled—and other conditions are satisfied—there will
be a 40 second delay before the system starts selling power to
the grid. When disabled, the default value of 20 seconds is
used. This feature is useful when the battery voltage is not
constant. It also helps avoid power fluctuations during sell.
As an exception, there will be zero time delay when the battery
voltage suddenly rises to 2 V above Grid Supp Volts. For
example, a wind turbine or micro-hydro connected to a small
battery bank may create a sudden change on the battery
voltage. In this case the system will immediately respond to
convert the energy from the battery to grid.
AC_Coupling AC Coupling function is enabled by default (Advanced Features
Menu) and should remain enabled except in cases where the
DC voltage level is allowed to have large variations and the AC
line frequency needs to remain constant.
Batt_Balance The Battery Balance function is disabled by default and is
intended for use with inverters drawing power from a single
battery bank. The Battery Balance function should be enabled
when Conext XW+ units are used in multi-cluster systems with
multiple battery banks. When enabled this feature helps
balance the power draw across multiple battery banks.
975-0713-01-01
3–41
Configuration
Table 3-12 Advanced Features Menu
3–42
Item
Description
PLS DLY 2h
When enabled, PLS (Peak Load Shave) mode is delayed by 2
hours to allow the MPPT solar charge controller to charge the
battery bank first, then when the timer of 2 hours expires, the
unit enters PLS mode for AC load support.
975-0713-01-01
4
Troubleshooting
Chapter 4, “Troubleshooting”, contains
information and procedures for identifying
and solving possible problems with the
Conext XW+ Inverter/Charger.
Topics in this chapter include:
• “General Troubleshooting Guidelines”
on page 4–2
• “Inverter Applications” on page 4–2
• “Inverter Troubleshooting” on page 4–4
• “Battery Charger Troubleshooting” on
page 4–7
• “Faults and Warnings” on page 4–10.
Troubleshooting
General Troubleshooting Guidelines
This section will help you narrow down the source of any problem you may
encounter. Please read the following troubleshooting steps:
1. Check for a Warning or Fault message on the Conext System Control Panel
or a Fault code on the inverter information panel. If a message is displayed,
record it immediately.
2. As soon as possible, create a detailed record of the conditions at the time the
problem occurred. These details should include, but not be limited to, the
following:
•
Loads the Conext XW+ was running or attempting to run.
•
Battery condition at the time of failure (for example battery voltage or
temperature) if known.
•
Recent sequence of events (for example, charging had just finished,
utility grid had failed but the inverter did not start up).
•
Any known unusual AC input factors such as low voltage or unstable
generator output.
•
Extreme conditions which may have existed at the time (temperature or
moisture for example).
3. Attempt the solution corresponding to the Warning or Fault message
indicated in Table 4-3 on page 4–11 or Table 4-6 on page 4–16.
4. If your inverter information panel or Conext SCP is not displaying a Fault light,
check the following list to make sure that the present state of the installation
allows proper operation of the unit. See also “Inverter Troubleshooting” on
page 4–4 and “Battery Charger Troubleshooting” on page 4–7.
•
Is the Conext XW+ located in a clean, dry, adequately ventilated area?
•
Have the AC input breakers opened? If so, your pass through load may
have exceeded the rating of one or more of the input breakers.
•
Are the battery cables adequately sized and short enough? See the
Conext XW+ Installation Guide for more information.
•
Is the battery in good condition, and are all DC connections tight?
•
Are the AC input and output connections and wiring in good condition?
•
Are the configuration settings correct for your particular installation?
•
Are the display panel and the communications cable properly connected
and undamaged?
•
Are the battery temperature sensor and its cable properly connected
and undamaged?
5. Contact Schneider Electric Customer Service for further assistance. Please
be prepared to describe details of your system installation and provide the
model and serial number of the unit. See page ii for contact information.
Inverter Applications
The Conext XW+ performs differently depending on the AC loads connected to it.
If you are having problems with any of your loads, read this section.
4–2
975-0713-01-01
Inverter Applications
Resistive Loads
Resistive loads are the easiest and most efficient to drive. Voltage and current
are in phase, which means they are in step with one another. Resistive loads
generate heat in order to accomplish their tasks. Toasters, coffee pots, and
incandescent lights are typical resistive loads. It is usually impractical to run
larger resistive loads—such as electric stoves and water heaters—from an
inverter due to their high current requirements. Even though the inverter may be
able to accommodate the load, the size of battery bank will limit inverter run time.
Motor Loads
Induction motors (AC motors without brushes) require up to six times their
running current on start up. The most demanding are those that start under load
(for example, compressors and pumps). Of the capacitor start motors (typical in
tools such as drill presses and band saws), the largest you can expect to run is
1 horsepower. Universal motors are generally easier to start. Check that the
Locked Rotor Amps (LRA) rating of the motor load does not exceed the
maximum surge current rating of the inverter. Since motor characteristics vary,
only testing will determine whether a specific load can be started and how long it
can be run.
If a motor fails to start within a few seconds or loses power after running for a
time, it should be turned off. When the inverter attempts to start a load that is
greater than it can handle, the inverter may shut down from an AC Overload fault.
Problem Loads
Very Small Loads
IIf the power consumed by a device is less than the threshold of the search mode
circuitry, and search mode is enabled, the inverter will not run. Most likely the
solution will be to disable Search mode or lower the sense threshold. (See
“Using Search Mode” on page 3–8.)
Fluorescent Lights and Power Supplies
Some devices cannot be detected when scanned by search mode circuitry.
Small fluorescent lights are the most common example. Some computers and
sophisticated electronics have power supplies that do not present a load until
line voltage is available. When this occurs, each unit waits for the other to begin.
To drive these loads, either a small companion load like a light bulb rated for
more than the Search Watts setting must be used to bring the inverter out of
search mode, or the inverter may be programmed to remain on by disabling
search (See “Using Search Mode” on page 3–8).
Clocks
You may notice that your clocks are not accurate. Some of the clocks on your
appliances may reset when the Conext XW+ is in search mode. Disabling search
mode will resolve this issue.
975-0713-01-01
4–3
Troubleshooting
Searching
When the inverter is in search mode, it may fail to start some loads even though
the rated wattage on the load is more than the Search Watts setting. Disable
search or apply an additional load (companion load) to make the inverter exit
search mode.
Inverter Troubleshooting
To determine the cause of an inverter error condition, refer to the troubleshooting
table below for possible solutions.
Table 4-1 Troubleshooting Common Problems
Problem
Possible cause
Unit will not power on (no LEDs
are on) and the inverter
information panel is blank or off.
Unit was turned off using startup/ Turn the unit on again.
shutdown button on front panel.
Unit goes into invert mode and
starts producing AC output, but
stops quickly (several attempts
made).
4–4
Solution
DC voltage on the inverter’s DC
terminals is incorrect.
Check the battery voltage, fuses
or breakers and DC cable
connections to the inverter. If the
DC voltage on the inverter’s DC
terminals is correct, have unit
serviced.
Excessive load on output.
Reduce loads.
Unit is in over-temperature
protection and needs to cool
down.
Stop inverting by putting the
inverter into Standby mode, and
then allow the unit to cool and
increase ventilation. If necessary,
replace the foam air filter on the
bottom of the unit.
Remote Power Off signal is
present.
Release or reset the Remote
Power Off switch.
975-0713-01-01
Inverter Troubleshooting
Problem
Possible cause
Solution
No AC power output.
Open AC output breakers or
fuses and bad output wire
connections.
Check the Load AC Voltage
status on the SCP Meters
screen and check AC voltage on
the inverter AC Out terminal
block.
The inverter information panel
displays Sch.
Inverter is disabled. Re-enable
inverter.
If the Meters screen shows
correct AC voltage but there is
no AC voltage on the inverter AC
Out terminal block, check for
loose connections on the inverter
terminal block. If connections are
not loose, the inverter may need
to be serviced.
If there is correct AC voltage on
the Meters screen and on the
inverter AC terminal block, check
for open AC output breakers or
fuses and bad output wire
connections.
If AC voltage on the Meters
screen or inverter AC terminal
block is incorrect, have unit
serviced.
No AC power output.
The inverter information panel
displays Sch.
AC load too small for Search
Mode circuit to detect.
Reduce Search Watts setting,
increase load above Search
Watts setting, or disable
Search on the Setup menu.
If the AC1 LED is on, check
inverter output connections and
voltage.
Low AC power output or low
surge power. INVERT LED is on.
AC inductive loads are not
running at full speed.
Insufficient DC current being
provided to the inverter to
operate the AC loads.
Check the battery voltage, fuses
or breakers and cable
connections.
Make sure the battery bank is
sufficient (check for low DC
voltage while running the load).
Make sure the cable length and
size is correct (see the Conext
XW+ Installation Guide for
correct cable). Tie the battery
cables together to reduce
inductance.
975-0713-01-01
4–5
Troubleshooting
Problem
Possible cause
Solution
Inverter turns on and then off or
does not turn on at all.
Search Watts setting is too low
or high.
If the search sensitivity is set
higher than the combined loads,
then connect an auxiliary load to
bring the inverter out of Search
Mode before the appliances can
be turned on.
Potential problem loads for
search mode:
• Incandescent lights have a
higher starting wattage when
the filament is cold than the
continuous rating of the bulb.
• Fluorescent bulbs draw little
power until the mercury vapor
begins to conduct enough
current to light the tube.
• Other loads: Some
appliances draw power even
when turned off: TVs with
instant-on circuits and VCRs,
for example.
If the sensitivity is set lower than
the combination of the loads, the
loads will remain on and excess
battery drain will occur since the
inverter will not ever idle.
Another solution is to turn the
item off at the wall; use an
extension cord with a rocker
switch, a switch at the outlet, or
an appropriate circuit breaker.
The utility grid is not dropping
out, but the unit is disconnecting
from the grid.
The AC voltage or frequency
provided to the inverter input is
outside the AC Setting voltage or
frequency range.
Adjust the AC1 voltage and
frequency settings (see “AC Input
Settings” on page 3–21). Raise the
high voltage and frequency
settings, and lower the low voltage
and frequency settings. If Grid
support is enabled, these limits are
over-ridden by the default antiislanding AC parameters.
The inverter connects to the grid
and can charge normally. In a
grid interactive mode (Grid
Support enabled), the unit is
experiencing excessive
anti-islanding faults during
periods of high sell amperage.
The impedance of the AC
connection to the inverter is too
high for the power being sold to
the grid. The impedance may be
on the high end if the installation
is too far from the utility point of
common connection or if the
wires are too small between the
Conext XW+ and the main
service panel.
Measure the grid voltage at the
service panel (meter base). If
these measurements are not
within the voltage range for sell
mode (see “Electrical
Specifications” on page A–2),
contact your utility for resolution.
If these measurements are within
the voltage range for sell mode
(see “Electrical Specifications”
on page A–2), the most likely
event is that the AC wiring
between the inverter and the
meter base is not sized
appropriately. It should be sized
for a 1 to 1.5% maximum voltage
drop. Alternately, the Max Sell
Amps can be reduced until the
unit stops disconnecting.
4–6
975-0713-01-01
Battery Charger Troubleshooting
Battery Charger Troubleshooting
To determine the cause of a charger error condition, refer to the troubleshooting
solutions below.
Problem
Possible Cause
Solution
AC1/AC2 LED is on,
but will not start
charging (allow 40
seconds to
synchronize).
1) Charger is disabled on the Setup
menu.
1) Enable the charger.
2) Charger Block is enabled and
the Conext XW+ is inside of the
charger block time window.
2) Disable Charger Block if you
need to override this feature.
3) The Conext XW+ is load shaving.
3) Check the load shave settings. If the
load draw from the grid exceeds
Load Shave Amps, the charger will
not operate.
4) Charger is set for 2-stage charging
and has completed a full charge
cycle.
4) No action required. The charger
comes on when the battery reaches
the ReCharge Volts setting.
Otherwise use the Force Chg setting
on the device setup menu to force a
bulk or float charge.
975-0713-01-01
5) Battery voltage is below 40 V and
AC source could not be qualified.
5) Recharge the batteries with an
external battery charger or replace the
batteries.
6) Gen support is enabled and the
draw from the loads exceeds the Gen
support amps setting.
6) Temporarily disable Gen support
mode, or reduce loads below Gen
Support Amps setting.
4–7
Troubleshooting
Problem
Possible Cause
AC1 or AC2 LED is
flashing, but will not
start charging
AC voltage and frequency at the AC
input terminal are within nominal
range, but the inverter output is not
yet synchronized to the AC source.
There are four possible causes:
(allow 40 seconds to
synchronize).
4–8
Solution
1) The inverter may already be
synchronized to another AC source.
1) The inverter is operating normally.
2) The AC voltage or frequency
applied to the input is outside of the
acceptable range of the inverter.
2) Adjust the AC acceptance settings
(see “AC Input Settings” on page 3–
21) or possibly service an unstable
generator.
3) AC voltage and frequency at the
AC input terminals are within
acceptable range, but the inverter is
not yet synchronized to the AC
source.
3) Make sure voltage readings are
within the tolerance for AC
acceptance and are stable for at least
60 seconds. See Table 3-5 on
page 3–21.
4) A split phase unit may be
connected to two legs of three-phase
service.
4) Connect the split phase unit to split
phase power; use an isolation
transformer to create a separately
derived neutral; or acquire three or six
units, convert them to single phase,
and then connect a three-phase
system to the three-phase source.
975-0713-01-01
Battery Charger Troubleshooting
Problem
Possible Cause
Solution
Charger amperage
drops off before full
charging has finished
(no Fault LED).
AC frequency at the AC input terminal
may be out-of-tolerance (too high or
low) or the AC voltage may be outside
the Hi AC Volt or Lo AC Volt
settings. AC input voltage
approaching the low disconnect level.
Check the settings on the
AC Settings menu. Check for the
correct AC voltage or frequency at the
AC input terminal. If the AC source is a
generator, adjust the AC voltage or
frequency accordingly.
Increase the difference between the
Hi AC Volt (AC1) and Lo AC Volt
(AC1) settings to allow
synchronization.
Charger stops before
full charging (or
equalization) has
finished.
The charge settings are incorrectly
configured for your battery type.
Select the correct battery type or
configure a Custom battery type.
Ambient temperature may be high,
causing unit to overheat and ramp
down the charging.
Cool the unit down or check for
anything preventing air flow around the
unit.
Battery bank has one or more bad
cells or inadequate wiring.
Check tightness of battery connections
and interconnections. Replace battery.
Battery Management System on
Lithium Ion battery has interrupted
charging.
Consult with battery manufacturer for
battery compatibility.
Cold temperature around batteries
with battery temperature sensor (BTS)
installed may be causing unit to reach
High Batt Cut Out setting.
Disconnect BTS during charging or
increase High Batt Cut Out
setting.
Loose or corroded battery
connections.
Check and clean all connections.
Loose AC input connections.
Check and tighten AC wiring
connections.
Worn out batteries.
Replace batteries.
Battery cables too small or too long.
Refer to cable and battery
recommendations in the Conext XW+
Installation Guide.
Fault LED flashes and
AC output drops
momentarily.
Charger output is low.
975-0713-01-01
4–9
Troubleshooting
Problem
Possible Cause
Solution
Batteries being
charged above the
bulk/float settings.
If a BTS (Battery Temperature Sensor)
is installed, it may be in a cold area or
have fallen off the batteries.
Inspect the BTS. Reduce
Batt Temp Comp on
Custom Battery Settings menu.
Another DC charging source may be
on the batteries.
Battery bank size too small relative to
charger output.
Increase battery bank size or decrease
max charge rate.
Note: To bring batteries that are cold to
the correct state of charge may require
charging at a higher voltage. This may
be normal BTS operation. Unplug the
BTS and determine if your voltage
returns to the bulk/float voltage.
Faults and Warnings
When a fault or warning message appears on the Conext SCP, you can
acknowledge the message to clear the screen. To acknowledge a fault or
warning message, press the Enter button. This action does not clear the fault or
warning condition - consult Table 4-3 and Table 4-6 for suggested actions after
you have acknowledged the message. Refer to the Conext System Control Panel
Owner’s Guide for more information on faults and warnings.
Warning Messages
Warning messages appear on the Conext SCP to alert you to an impending
system change. You can view the 20 most recent warning messages using the
Conext SCP’s warning log, accessible from the View Device Info menu. Each
warning has a time stamp to let you know the date and time that the warning
appeared.
If several warning messages occur before you can acknowledge or clear them,
they are displayed together on a warning list. This list contains messages from
every Xanbus-enabled device, not just the Conext XW+. You can select a
message and view its details from warning list.
To view a message from a warning list:
1. On the list, use the up arrow or down arrow button to highlight the message
you want to view.
2. Press Enter. The complete message appears.
After viewing the message, you can return to the warning list by pressing Exit or
continue to the menu for the device that caused the warning by pressing Enter.
Each time you return to the list after viewing a complete message, the viewed
message is removed from the list.
4–10
975-0713-01-01
Faults and Warnings
If you have left the warning list, you can view warnings at any time from the
System Settings menu.
To view a warning list:
1. On the Select Device menu, highlight System and press Enter.
2. On the System Settings menu, highlight View Warning List.
3. Press Enter.
Warning Types
There are two types of warnings: automatic and manual. When the Conext XW+
detects a warning condition, it displays a warning message on the Conext SCP.
Table 4-2 describes how they differ in their behavior and in how you can respond
to them when they appear on the Conext SCP.
Table 4-2 Warning Types and Behavior
Warning type
Behavior
Automatic
warning
Clear automatically if the fault condition that generated the message goes away.
You can also acknowledge automatic warnings without waiting for them to clear
automatically.
Manual warning
Require you to acknowledge them before you can proceed with configuring or
operating the Conext XW+. Manual warnings are usually in the form of a Yes/No
question that you may acknowledge by pressing the Enter button on the Conext
SCP for Yes and the Exit button for No.
Refer to the Conext System Control Panel Owner’s Guide for more information.
Table 4-3 provides descriptions of the warning messages and solutions.
Table 4-3 Warning Messages
Conext System
Warning Control Panel
Number Message
Warning
Type
Cause
Solution
W44
Battery Over
Temperature
Automatic Battery Over
Temperature Warning.
Battery temperature is
over 50 °C.
Check battery voltage and
battery cable connections.
Stop charging, if necessary.
Check for excessive ambient
temperature and adequate
ventilation in the battery
compartment
W45
Capacitor over
temperature
Automatic DC Bulk Capacitor over
temperature (100 °C)
Make sure that there is
adequate ventilation around the
Conext XW+ Inverter/Charger.
Reduce the AC loads.
975-0713-01-01
4–11
Troubleshooting
Table 4-3 Warning Messages
Conext System
Warning Control Panel
Number Message
Warning
Type
Cause
Solution
W48
DC Under Voltage
Automatic Battery voltage is below
47 V.
Check for the correct battery
voltage at the inverter’s DC
input terminals. Check for an
external DC load on the
batteries. Check condition of
batteries and recharge if
possible or reduce your Low
Batt Cut Out setting.
W49
DC Over Voltage
Automatic Battery voltage is above
68 V.
Turn off or check additional
charging sources to batteries.
Check battery cables.
Check for the correct battery
voltage at the inverter’s DC
input terminals. Make sure the
DC source is regulated below
the high battery cut out or
increase the High Batt
Cut Out setting.
W57
W58
4–12
FET1 Over
Temperature
FET2 Over
Temperature
Automatic Internal temperature is
over 85 °C.
AC input voltage may be
too high while charging.
Check for high input AC
voltage.
Operating too large of a
load for too long while
inverting.
Remove excessive loads.
Ambient temperature
may be high.
Let inverter cool down and try
restarting.
Inverter cooling fan may
have failed.
Hold a piece of paper to
inverter vents to check the fan.
If the fan has failed, have the
inverter serviced.
Inverter airflow intake
may be blocked.
Increase clearance around the
inverter or unclog the fan air
intake.
Charging setting is too
high based on ambient
temperature around
inverter.
Lower the Max Charge Rate
setting.
Automatic See W57.
See W57.
975-0713-01-01
Faults and Warnings
Table 4-3 Warning Messages
Conext System
Warning Control Panel
Number Message
Warning
Type
Cause
Solution
W63
AC Overload
Automatic Excessive load on the AC
output.
Check for loads above the
inverter’s capacity. Turn off
some loads if necessary.
W64
AC Overload
Automatic See W63.
See W63.
W68
Transformer Over
Temperature
Automatic See W57.
See W57.
W70
Synchronization
Warning
Manual,
AC input
is not
qualified
1. An AC input voltage
phase is lost or out of the
AC range in the
three-phase.
1. Check the AC voltage
presence of each phase at the
AC input terminals for each
Conext XW+.
2. AC input voltage
phases are not
synchronized with Conext
3-phase system.
2. Inspect the three-phase
wiring to have the correct
phase sequence: XW-Phase-A,
XW-Phase-B, XW-Phase-C with
the same AC input sequence to
each unit.
W94
Remote Power Off
Automatic The unit has been turned
off with a Remote Power
Off switch.
No action required. The unit
stops inverting or charging
immediately, and shuts down
after five seconds. If the unit is
configured as a master, it
signals other network devices
to also shut down.
W95
Equalize Abort
Manual
Equalization terminated
abnormally because of
interrupted AC input.
Wait until AC input (utility grid)
returns to in-tolerance
condition.
W96
Cannot Equalize
Manual
The selected battery type
should not be equalized.
Change battery type if your
batteries should be equalized.
Gel or AGM batteries should
not be equalized.
AC input is not qualified
or the charge setting is
not adequate.
Check for presence of AC.
Make sure Charge and
Equalize are enabled. Verify
the Conext AGS trigger is set to
Stop Float. If Stop V is
enabled, then the voltage level
should be above the
Eqlz Voltage level.
W97
Battery temp
sensor failure
975-0713-01-01
Automatic Battery Temperature
Sensor Shorted
Replace battery temperature
sensor.
4–13
Troubleshooting
Table 4-3 Warning Messages
Conext System
Warning Control Panel
Number Message
Warning
Type
W500
Lost network
connection
Automatic Lost network connection
Check network cables.
W501
Inv/Chg is trying to
fix a memory
problem
Manual
Normal operation may return or
may go to fault. Turn Conext
XW+ off and on to resume
normal operation.
Cause
Non-volatile memory
warning
Solution
Fault Messages
When the Conext XW+ detects a fault condition, the fault is displayed on the
Conext SCP. The Conext XW+ also turns on the Fault light on the Conext SCP and
inverter information panel. A fault affects the operation of the unit. See “Fault
Types” on page 4–14 for an explanation of the different fault types.
You can view the 20 most recent fault messages on the Conext SCP by selecting
Fault Log from the Device Info menu in the Conext XW+ Setup Menu.
If several faults occur before you can acknowledge or clear them, they are
displayed together on a fault list. This list contains messages from every Xanbusenabled device, not just the Conext XW+. You can select a message and view its
details from the fault list.
To view a message from a fault list:
1. On the list, use the up arrow or down arrow button to highlight the message
you want to view.
2. Press Enter. The complete message appears.
After viewing the message, you can return to the fault list by pressing Exit or
continue to the menu for the device that caused the fault by pressing Enter. Each
time you return to the list after viewing a complete message, the viewed message
is removed from the list.
If you have left the fault list, you can view faults at any time from the System
Settings menu.
To view a fault list:
1. On the Select Device menu, highlight System Settings and press Enter.
2. On the System Settings menu, highlight View Fault List and press Enter.
Fault Types
There are three types of fault messages: automatic faults, manual faults, and
escalating automatic faults. Table 4-4 describes how they differ in their behavior
and how you can respond to them when they appear on the Conext SCP.
4–14
975-0713-01-01
Faults and Warnings
Table 4-4 Fault Types and Behaviors
Fault type
Behavior
Automatic faults
Clear automatically if the fault condition that generated the message goes away.
You can also acknowledge automatic faults without waiting for them to clear
automatically. It is not possible to clear a fault if the cause of the fault is still
present.
Manual faults
Require you to clear them by:
• selecting Clear Faults on the Main Conext XW+ menu or on the menu for the
Xanbus-enabled device that generated the fault (if the fault condition still exists,
the fault message reappears)
• correcting the condition that caused the fault
Escalating
automatic faults
Clear automatically if the fault condition goes away, same as an automatic fault.
However, if an escalating automatic fault occurs several times within a defined time
period, the escalating automatic fault becomes a manual fault, requiring user
intervention. For example, if an AC Overload fault occurs three times in five
minutes, it will no longer clear itself and it will become a manual fault. You must
identify the problem, correct the fault condition, and clear the fault.
Inverter Operation After Faults
Conext XW+ operation changes when a fault occurs. How the operation changes
depends on the operating state of the unit when the fault occurred—inverting,
charging, grid or generator support, AC bypass, and so on—and on which fault
has occurred.
Table 4-5 Inverter Operation After Faults
Faults
State when Faults
Occur
F1, F2: AC Output
Inverting
Unit stops inverting and waits for nominal AC output
voltage level or a manual clear from user.
F17 to F22:
Relay Welded
Inverting
Unit stops inverting and waits for user to clear fault. If
qualified AC input is available, the unit is in AC bypass.
F23 to F40:
Anti-Islanding
Grid Support (Peak
Load Shaving or
Selling)
Unit moves to AC bypass and waits for nominal grid
conditions to return for a minimum of five minutes.
F41, F42: Aux
power supply
voltage
Unit has qualified AC
input.
Unit shuts down and waits for nominal AC output
voltage level, or a manual clear from user.
975-0713-01-01
Action After Faults
4–15
Troubleshooting
Table 4-5 Inverter Operation After Faults
State when Faults
Occur
Faults
F44:
Battery Over Temp
Any state.
F45:
Capacitor Over
Temp
Action After Faults
If inverting, the unit shuts down and waits for the
temperature to return to nominal value. If in any of the
AC-interactive states (charging, peak load shaving, sell,
or gen support), the unit goes into AC bypass mode
until the temperature returns to the nominal value. If the
unit is not in AC bypass, it shuts down until the
temperature returns to nominal value. If qualified AC
input is present, the unit is in AC bypass. After these
faults clear, the unit returns to its previous operating
state.
F47 to F49:
DC Under Voltage
and Over Voltage
Unit is inverting or has If inverting, the unit shuts down and waits for nominal
qualified AC input and voltage. If operating with a qualified AC source, the unit
is preparing to charge. charges if charging is enabled or remains in AC bypass
if charging is disabled.
F63 to F64:
AC Overload
Inverting or Grid
Support
Unit stops inverting and waits to qualify AC. Unit waits
for user to manually clear fault.
Table 4-6 provides descriptions of the fault messages and solutions. If you are
unable to resolve the problem after referring to this table, contact your dealer or
Customer Service.
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
Clear the fault and attempt
restart. If problem persists,
call customer service.
F1
AC Output Under
Voltage
Escalating
Auto Fault.
Must occur 3
times in 2
minutes
before
becoming a
manual fault.
AC under voltage
shutdown at 210 V. The
inverter has shut down to
protect the loads.
F2
AC Output Over
Voltage
Escalating
Auto Fault.
Must occur 3
times in
30 seconds
before
becoming a
manual fault.
AC overvoltage shutdown Clear the fault and attempt
at 253 V. The inverter has restart. If problem persists,
shut down to protect the call customer service.
loads.
F17
Relay(s) Welded
Manual
The AC1 Line transfer
relay is bad or an AC
source was wired directly
to the AC output.
4–16
Disconnect the inverter’s
output wiring. If error
continues, have unit serviced.
975-0713-01-01
Faults and Warnings
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
F19
Relay(s) Welded
Manual
AC2 Line transfer relay is
bad or an AC source was
wired directly to the AC
output.
See F17.
F22
Relay(s) Welded
Manual
An unidentified Line
transfer relay is bad or an
AC source was wired
directly to the AC output.
See F17.
F23
AI Over
Frequency
Automatic
Over-frequency antiislanding, caught by the
AC qualification limit.
No action required. The
inverter stops selling and
disconnects from the grid.
When the fault clears, a fiveminute timer begins counting
down. The inverter does not
sell again until grid voltage
and frequency are within
range for five minutes.
F24
AI Under
Frequency
Automatic
Under-frequency antiislanding, caught by the
AC qualification limit.
See F23.
F25
AI Over
Frequency
Automatic
Over-frequency antiislanding.
See F23.
F26
AI Under
Frequency
Automatic
Under-frequency antiislanding.
See F23.
F27
AI Over Voltage
Automatic
Over-voltage antiislanding, fast
disconnect, 270 Vac.
See F23.
F31
AI Over Voltage
Automatic
Over-voltage antiislanding, slow
disconnect, 253 V.
See F23.
F34
AI Under Voltage
Automatic
Under-voltage antiislanding, slow
disconnect, 198 V.
See F23.
F37
AI Under Voltage
Automatic
Under-voltage antiislanding, fast
disconnect, 138 Vac.
See F23.
F41
APS Under
Voltage
Escalating
Auto Fault.
Must occur 3
times in 30
seconds
before
becoming a
manual fault.
Auxiliary power supply
under-voltage shutdown
Clear the fault and attempt
restart. If problem persists,
call customer service.
975-0713-01-01
4–17
Troubleshooting
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
F42
APS Over Voltage
Escalating
Auto Fault.
Must occur 3
times in 30
seconds
before
becoming a
manual fault.
Auxiliary power supply
over-voltage shutdown
Clear the fault and attempt
restart. If problem persists,
call customer service.
F44
Battery Over
Temperature
Automatic
Battery over- temperature
shutdown at 60 °C.
Clear the fault and attempt
restart. Stop charging, check
battery voltage and
temperature. Check for
excessive ambient
temperature and adequate
ventilation in the battery
compartment.
Note: Shutdown temperature
is above 60 °C. Recovery
occurs at 50 °C where the XW
will be enabled again.
F45
Capacitor Over
Temperature
Automatic
Capacitor overtemperature shutdown at
150 °C.
Clear the fault and attempt
restart. Make sure that there
is adequate ventilation
around the Conext XW+.
Reduce AC loads.
F46
Controller fault
Manual
Controller fault
Service required.
F47
DC Under Voltage Automatic
DC under-voltage
shutdown (immediate)
occurs if DC voltage is
below 16 VDC (24 V
system) or 32 VDC (48 V
system). The fault clears
and the inverter restarts
when DC voltage reaches
VLBCO+2 V (24 V system)
and VLBCO+4 V (48 V
system).
Check for the correct battery
voltage at the inverter’s DC
input terminals. Check for an
external DC load on the
batteries. Check condition of
batteries and recharge if
possible.
F48
DC Under Voltage Automatic
DC under-voltage
shutdown occurs if DC
voltage is below LBCO
voltage level.
See F47.
4–18
975-0713-01-01
Faults and Warnings
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
DC over-voltage
shutdown. Occurs if DC
voltage is above 70 V.
The fault can occur when
batteries are
disconnected at the DC
breaker while the Conext
XW+ is operating.
Clear the fault and attempt
restart. Ensure battery
voltage is below 58 VDC at
Conext XW+ terminals.
Check all other charging
source outputs, battery
cables. Ensure that batteries
are connected, or that your
DC source is regulated below
your high battery cut out or
increase your Hi Batt Cut
Out setting.
F49
DC Over Voltage
Escalating
Auto Fault.
F52
EEPROM Error
Manual
No action. Clear fault and
resume operating or
configuring the unit. If the
fault persists, have the unit
serviced.
F53
EEPROM Error
Manual
See F52.
F54
EEPROM Error
Manual
See F52.
F55
EEPROM Error
Manual
See F52.
F56
EEPROM Error
Manual
See F52.
975-0713-01-01
4–19
Troubleshooting
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
F57
Automatic
Internal temperature is
over 105 °C.
Fault clears when
temperature drops to 75 °C.
AC input voltage may be
too high while charging.
Check for high input AC
voltage.
Operating too large of a
load for too long while
inverting.
Remove excessive loads.
Ambient temperature
may be high.
Let inverter cool down and try
restarting.
Inverter cooling fan may
have failed.
Hold a piece of paper to
inverter vents to check the
fan. If the fan has failed, have
the inverter serviced.
Inverter airflow intake
may be blocked.
Increase clearance around
the inverter or unclog the fan
air intake.
Charging setting is too
high based on ambient
temperature around
inverter.
Lower the Max Charge Rate
setting.
FET1 Over
Temperature
Shutdown
F58
FET2 Over
Temperature
Shutdown
Automatic
See F57.
See F57.
F59
GOCFG process
failed
Manual
Auto-configuration
process failed.
Retry the “Copy From”
procedure, or configure the
unit manually.
F63
AC Overload
Escalating
Auto Fault.
Must occur 3
times in 5
minutes
before
becoming a
manual fault.
Excessive load on the AC
output.
Check for loads above the
inverter’s capacity. Turn off
some loads if necessary. To
clear the fault:
4–20
Turn off the unit by holding
the power button for 5 sec.
Disconnect the Conext XW+
from the battery bank for 20
sec.
975-0713-01-01
Faults and Warnings
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
F64
AC Overload
Escalating
Auto Fault.
Must occur 3
times in 5
minutes
before
becoming a
manual fault.
Excessive load on the AC
output.
See F63
F66
System
Configuration
Fault
Automatic
Multi-Unit Configuration
settings are incorrect.
Make sure only one unit is
configured as the master. For
three-phase installations,
make sure that only one unit
on each phase is configured
as the master. Make sure
each unit has a unique
Device Number and that
Inverter Mode and
Connections have been
configured correctly. See
“Three-Phase Configuration”
on page 3–36 and
“Connections Menu” on
page 3–38.
F67
Watchdog Error
Manual
F68
Transformer Over
Temperature
Automatic
F69
External Sync
Failed
Manual
975-0713-01-01
Service required.
The transformer
temperature is over
140 °C.
The fault clears when the
transformer temperature falls
to 125 °C. Make sure that
there is adequate ventilation
around the Conext XW+.
Reduce AC loads.
Check connections and
cable on external AC sync
port. In a single-inverter
system, nothing must be
plugged into the AC sync
port. Clear fault and try again.
If these steps fail, the unit
requires service.
4–21
Troubleshooting
Table 4-6 Fault Messages
Fault
Number Message
Fault Type
Cause
Solution
F70
Automatic
The unit cannot qualify its
AC input because of an
incorrect three-phase
installation. For example,
phase B and phase C are
reversed, either through
miswiring or incorrect
Connections and Inverter
Mode settings.
1. Make sure that only one
unit on each phase is
configured as the master.
Make sure each unit has a
unique Device Number and
that Inverter Mode and
Connections have been
configured correctly. See
“Three-Phase Configuration”
on page 3–36 and
“Connections Menu” on
page 3–38.
Check Phase
Configuration
2. Disconnect all units and
make sure that the threephase wiring is correct.
F71
Battery Discharge
Over Current
Manual
There is an excessive
load on the Li-Ion battery.
This fault applies only to
Li-Ion batteries.
Change the default threshold
of the max battery discharge
current limit or reduce the
load.
F72
External AC
Contactor
Malfunction
Manual
The AC Contactor was
not in the expected
setting.
Check why the AC contactor
has failed. Check for fusing of
coil, wiring and connections.
Verify that the AC contactor
has power.
F500
Silicon Serial ID
Failure
Manual
Silicon Serial ID Failure
Service required.
4–22
975-0713-01-01
A
Specifications
Appendix A, “Specifications” provides the
electrical and mechanical specifications
for the Conext XW+ Inverter/Charger.
Specifications
Electrical Specifications
Table A-1 Conext XW+ Electrical Specifications
Conext XW+
8548
Conext XW+
7048
Continuous Output Power
6,800 W
5,500 W
Surge Rating (Overload for 1 minute)
12,000 W
9,500 W
Surge Rating (Overload for 5 minutes)
11,000 W
9,000 W
Surge Rating (Overload for 30 minutes)
8,500 W
7,000 W
Surge Current
53 Arms (60 s)
40 Arms (60 s)
Waveform
Idle Consumption—invert mode, no load
True Sine Wave
28 W
26 W
Idle Consumption—search mode
<7W
AC Output Voltage
230 Vac ±3%
AC Input Voltage Range (Bypass/Charge Mode)
165–280 V
AC Input Breaker
60 A double-pole
AC Input Frequency Range (Bypass/Charge
Mode)
45–55 Hz (default)
AC Output Continuous Current
40–68 Hz (allowable)
29.5 A
24 A
AC Output Frequency
50.0 ±0.1 Hz
Total Harmonic Distortion
< 5% at rated power
Automatic Transfer Relay Rating
60 A
Auxiliary Relay Output
0–12 VDC, maximum 250 mA DC
Peak Efficiency
95.8%
95.8%
DC Input Voltage (Nominal)
48 VDC
48 VDC
DC Input Voltage Range
40–64 VDC
40–64 VDC
Maximum DC Input Current
180 A
150 A
Continuous Charge Rate at Nominal Voltage
140 A
110 A
Power Factor Corrected Charging
A–2
PF (0.98)
975-0713-01-01
Electrical Specifications
Conext XW+ Overload Capability
Loads connected to the inverter are seldom constant, and large loads are often
operated for short periods. To accommodate larger loads, the Conext XW+ can
temporarily exceed its continuous output power rating. The graphs below
illustrate approximate operation time versus load.
Inverter operation time during overload is limited by both inverter internal
temperature protection and by the product of AC output current and
elapsed time.
Conext XW+ 7048 IEC L-N Inverter Surge Profile
9500
Line-Neutral (230 V) Load [W]
Surge Power Versus Time
5 Minutes
9000
7000
30 Minutes
5500
4500
0
1
10
2
10
10
3
10
Time in Seconds
4
5
10
10
6
10
Conext XW+ 8548 IEC L-N Inverter Surge Profile
12500
Surge Power Versus Time
5 Minutes
Line-Neutral (230 V) Load [W]
11000
30 Minutes
8500
6800
0
10
1
10
2
10
3
10
Time in Seconds
4
10
5
10
6
10
Figure A-1 Conext XW+ AC Overload Capability
975-0713-01-01
A–3
Specifications
Output Power Versus Ambient Temperature
When the internal temperature of the Conext XW+ exceeds a preset limit, it
begins to limit output power automatically to stop maximum internal temperatures
from being exceeded.
Conext XW+ Power Derating
8000
7000
ytнϴϱϰϴ
Output Power (Watts)
6000
ytнϳϬϰϴ
5000
4000
3000
2000
1000
0
-25
-15
-5
5
15
25
35
45
55
65
75
Ambient Temperature (°C)
Figure A-2 Output Power Versus Ambient Temperature
Conext XW+ Efficiency
Inverting Efficiency (Typical)
100%
Efficiency (%)
95%
XW+ 8548
90%
XW+ 7048
85%
80%
75%
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
Output Power (Watts)
Figure A-3 Inverting Efficiency (Typical)
A–4
975-0713-01-01
Electrical Specifications
Charging Efficiency (Typical)
100%
Efficiency (%)
95%
90%
;:
85%
;:
80%
75%
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
Charge Current (Amps)
Figure A-4 Charging Efficiency (Typical)
Charging Efficiency Power Factor
;:
100%
;: Power Factor (%)
95%
90%
85%
80%
75%
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
Charge Current (Amps)
Figure A-5 Charging Efficiency Power Factor
975-0713-01-01
A–5
Specifications
Mechanical Specifications
Table A-2 Conext XW+ Inverter/Charger Mechanical Specifications
Conext XW+ 8548
Supported Battery Types
Conext XW+ 7048
Flooded (default), Gel, AGM, Lithium Ion, Custom
Battery bank size
440–10000 Ah
Non Volatile Memory
Yes
Inverter Information Panel
Status LEDs indicate AC In status, faults/
warnings, equalize mode, battery level.
Three-character display indicates output power or
charge current, fault/warning codes.
Startup/shutdown and equalize button.
System Network
Conext Xanbus™ (publish-subscribe network, no
need for hubs or special cards)
Enclosure Type
IP 20, indoor, unheated
Rated Temperature Range
(meets specifications)
0–25 °C
Operational Temperature
Range
-25–70 °C
Storage Temperature Range
-40–85 °C
Inverter Dimensions
(H × W × D)
580 × 410 × 230 mm
Shipping Dimensions
(H × W × D)
711 × 572 × 394 mm
Inverter Weight
55.2 kg
53.5 kg
Shipping Weight
76.9 kg
75 kg
A–6
975-0713-01-01
Mechanical Specifications
Internal Transfer Relay
Control & Monitoring
L-Gen
N
L-Grid
N
EMI Filter
AC Filter
EMI Filter
DC+
Power
Transformer
DC-
L-Load
N
+12V
RPO
RTN
OUT
IN
BTS
XBus
XBus
Power Bridge
Sync
Sync
PE
Figure A-6 Conext XW+ Block Diagram
975-0713-01-01
A–7
Specifications
Accessories
Table A-3 Conext XW+ Accessories
Accessory
Part Number
Conext XW+ Power Distribution Panel
865-1015-01
Conext XW+ Power Distribution Panel (Without
AC Breakers)
865-1014-01
Conext XW+ Conduit Box
865-1025-01
Conext XW+ Connection Kit for INV2 INV3 PDP
865-1020-02
Conext System Control Panel
865-1050-01
Conext Automatic Generator Start
865-1060-01
Conext MPPT 60 150 Solar Charge Controller
865-1030-1
Conext MPPT 80 600 Solar Charge Controller
865-1032
Conext ComBox
865-1058
Conext Battery Monitor
865-1080-01
Conext XW+ PDP 120/240V 60A Breaker Kit
865-1215-01
Conext XW+ PDP 3-Phase 60A Breaker Kit
865-1315-01
Regulatory Approvals
CE marked and complies with the following:
Low Voltage Directive 2006/95/EC, per:
•
EN50178 “Electronic Equipment for Use in Power Installations”.
EMC Directive 2004/108/EC, per:
•
EN61000-6-3 “Emission Standard for Residential, Commercial, and
Light-Industrial Environments”
•
EN61000-6-1 “Immunity for Residential, Commercial, and Light-Industrial
Environments”
RCM marked and complies with the following:
A–8
•
AS 4777.2: 2005 “Inverter requirements”
•
AS 4777.3: 2005 “Grid protection requirements”
•
IEC 62109-1: 2010 “General Requirements”
•
IEC 62109-2: 2011 “Particular Requirements for Inverters”
•
AS/NZS 60335.2.29:2004 + A1&A2 “Particular Requirements for Battery
Chargers”
975-0713-01-01
B
Default Settings
Appendix B contains the default
configuration settings and ranges for the
Conext XW+ Hybrid Inverter/Charger.
Configuration settings can be viewed and
changed using the Conext System
Control Panel.
Default Settings
Default Settings and Ranges
Figure B-1 shows how the Conext XW+ configuration menus are organized in the
Conext System Control Panel.
XW+ 8548 00: I nv
[ 46V ]
[ 10s ]
[ 70V ]
[ 50W]
[ 2s ]
XW+ 8548 00:Chg
[Flooded]
[ 440Ah]
[100%]
[ 2- Stage]
[Warm]
[50V]
[180min]
[12:00 AM]
[12:00AM]
Custom Set t i ngs
[Enabled]
[ 64. 0V]
[ 57. 6V]
[ 57. 6V]
[ 54. 0V]
[108mV/C]
XW+ 8548 00 : AC
XW+ 8548 00 :
[AC1 ]
[ 56 A]
[ 202 V]
[ 260 V]
[ 45Hz ]
[ 55Hz ]
[ 56 A]
[ 202 V]
[ 264 V]
[ 45Hz ]
[ 55Hz ]
Adv
[ XW+ 8548 0 1 ]
X W+ 8548 00: Grid
[53V]
[Disabled]
[ 27A]
[ Disabled]
[44A]
[12:00AM]
[12:00AM]
XW+ 8548 00: Gen
[Disabled]
[44A]
XW+ 8548 00: Aux
[Manual Off ]
[ Act Hi]
[LowBatt V]
[44V]
[1sec]
[48V]
[1 sec]
XW+ 8548 00: Multi
[XW+ 8548]
[00]
[1PhMaster]
XW+ 854800 : Adv Features
[ Disabled]
[ Disabled]
[ Disabled]
[Enabled]
[ Disabled]
[ Disabled]
Connections
[HouseBatt1]
[ACLoad1]
[Grid 1]
[Gen1]
Figure B-1 Configuration Menu Map (Advanced)
B–2
975-0713-01-01
Default Settings and Ranges
Inverter Menu
Default
Setting
Range
Low Batt Cut Out
46 V
40–48 V
0.1
Delay
10s
0–600s
1
High Batt Cut Out
70 V
58–70 V
0.1
Search Watts
50 W
25–255 W
5
Search Delay
2s
1–25s
1
Item
Step
Size
Charger Menu
Step
Size
Item
Default Setting
Range
Batt Type
Flooded
Flooded, Gel, AGM, Li-Ion,
Custom
n/a
Batt Capacity
440 Ah
0–10000 Aha
1
Max Chg Rate
100%
5–100%
1
Charge Cycle
2-Stage
2-Stage, 3-Stage
n/a
Default Batt
Temp
Warm
Cold, Warm, Hot
n/a
ReCharge Volts
50.0 V
40.0–54.0 V
0.1
Absorb Time
180 min
1–480 min
1
Chg Block Start
12:00 AM
12:00 AM–11:59 PM,
00:00–23:59
1
Chg Block Stop
12:00 AM
12:00 AM–11:59 PM,
00:00–23:59
1
a.Setting the battery capacity to 0 will reset the charging current to its default values. Zero Ah
battery capacity implies there is no absorption exit current criteria and absorption only exits
when the absorption timer (default 3 hrs, range 1 min-8 hr) expires.
975-0713-01-01
B–3
Default Settings
Custom Battery Menu
Item
Default
Settinga
Eqlz Support
Enabled
Enabled,
Disabled
n/a
Eqlz Voltage
64.0 V
54.0–64.0 V
0.1
Bulk Voltage
57.6 V
56.8 V (Gel)
57.2 V (AGM)
40.0–64.0 V
0.1
Absorb
Voltage
57.6 V
56.8 V (Gel)
57.2 V (AGM)
40.0–64.0 V
0.1
Float Voltage
54.0 V
55.2 V (Gel)
53.6 V (AGM)
40.0–64.0 V
0.1
Batt Temp
Comp
108 mV/C
(Flooded, Gel)
84mV/C (AGM)
0–180 mV/C 1
Max Battery
Discharge
Current
150% of Idc
rated
20% 500%
1
Max Battery
Discharge
Current Timer
10 sec
1-300 sec
1
Li-Ion Battery
Master Mode
Enabled
Enabled,
Disabled
n/a
Range
Step
Size
a.Custom battery default settings are based on the
Flooded battery default settings. The Gel and AGM
default settings are provided here for reference only.
AC Menu
Item
AC Priority
B–4
Default Setting
Range
Step Size
AC1
AC1, AC2
n/a
AC1 Breaker
56 A
3–60 A
1
AC1 Lo Volt
202 V
156–220 V
1
AC1 Hi Volt
260 V
240–280 V
1
AC1 Lo Freq
45 Hz
40–48 Hz
1
AC1 Hi Freq
55 Hz
52–68 Hz
1
AC2 Breaker
56 A
3–60 A
1
AC2 Lo Volt
202 V
156–220 V
1
AC2 Hi Volt
264 V
240–280 V
1
AC2 Lo Freq
45 Hz
40–48 Hz
1
AC2 Hi Freq
55 Hz
52–68 Hz
1
975-0713-01-01
Default Settings and Ranges
Grid Support Menu
Default
Range
Step
Size
53.0 V
42.0–70.0 V
0.1
27 A (XW+ 8548)
20 A (XW+ 7048)
0–27 A (XW+ 8548)
0–20 A (XW+ 7048)
1
Load Shave
Amps
44 A
0–48 A
1
Load Shave
Startc
12:00 AM
12:00 AM–11:59 PM,
n/a
Item
Grid Supp Voltsa
Max Sell Amps
b
00:00–23:59
Load Shave Stop 12:00 AM
12:00 AM–11:59 PM,
n/a
00:00–23:59
a.The setting for Grid Supp Volts must be greater or equal to LBCO+2 V. For example, if LBCO is 44 V then the minimum Grid Supp Volts is 46 V.
b.This setting is restricted to the selected external AC1 breaker size.
c.When Load Shaving is enabled, if Load Shave Start and Load Shave Stop are
set to the same time, the Conext XW+ load shaves continuously.
Gen Support Menu
975-0713-01-01
Setting
Default
Range
Step Size
GenSupp Mode
Disabled
Enabled, Disabled n/a
GenSupp Amps
44 A
3–48 A
1
B–5
Default Settings
Aux Menu
Step
Size
Item
Default
Range
Manual Aux
ManualOff
ManualOn, ManualOff,
Automatic
Active Lvl
n/a
ActiveHigh
ActiveHigh, ActiveLow
n/a
LowBattV
LowBattV, HighBattV,
LowBattTemp, HighBattTemp,
Fault
n/a
Trigger Level—LowBattVb
46.0 VDC
20.0–58.0 VDC
0.1
Clear Level—LowBattV
48.0 VDC
20.0–58.0 VDC
0.1
Trigger Level—HighBattV
56.0 VDC
48.0–64.0 VDC
0.1
Clear Level—HighBattV
48.0–64.0 VDC
0.1
Trigger Level—HighBattTemp
52.0 VDC
45.0°C
1
Clear Level—HighBattTemp
35.0°C
30.0–60.0°C
30.0–60.0°C
Trigger Level—LowBattTemp
0.0°C
-30.0–10.0°C
1
Clear Level—LowBattTemp
5.0°C
-30.0–10.0°C
1
Trigger
Srca
1
Trigger Delay
1s
0–600s
1
Clear Delay
1s
0–600s
1
Charge Bulk Exit
Bulk Exit
N/A
0.1
Charge Absorption Exit
Absorption Exit
N/A
0.1
Heatsink Temperature
100°C
-30.0-20.0°C
1
SoC (State of Charge) (with
Conext Battery Monitor only)
25%
0-100%
1
TOD (Time of Day)
12:00 AM
12:00 AM-11:59 PM
1m
a.The Trigger Src setting (and the settings below Trigger Src) appear only if
Manual Aux setting has been set to Automatic.
b.Trigger Level, Trigger Delay, Clear Level and Clear Delay do not appear if
Trigger Src is set to Fault.
Connections Menu
B–6
Item
Default
Range
DCConn
HouseBatt1
HouseBatt1–6
ACOut
ACLoad1
ACLoad1–10
AC1
Grid 1
None, Grid1–10, Gen1–10
AC2
Gen 1
None, Grid1–10, Gen1–10
975-0713-01-01
Index
Numerics
2-stage charge mode 14
3-stage charge mode 11
Distinguishing Features 2
Down arrow button 9
E
A
absorption charging stage 12
AC Coupling 9
AC settings menu
default settings 4
description 21
accessories 7
advanced features menu 41
Advanced menu 4
automatic faults 15
automatic generator start 8
auxiliary output menu
default settings 6
description 30
electrical specifications 2
energy management features 23
Enter button 9
equalize button and LED 5
equalize mode 15
escalating automatic faults 15
Event LED (Inverter Information Panel) 5
Exit button 9
F
fault types 15
fault/warning LED (System Control Panel) 9
faults and warnings 10
features 2
float charging stage 13
B
Battery Charger Functions 11
battery level LEDs 7
battery type 10
Bidirectional Theory of Operation 3
bulk charging stage 12
C
G
Gen (AC2) LED 2
generator support 14
generator support menu
default settings 5
description 28
Grid (AC1) LED 2
grid support 15, 24
grid support settings menu
default settings 5
description 22
charger block 10, 26
charger settings menu
default settings 3
description 9
charger status LED 4
charging cycle diagram 11
Conext SCP
device setup menus 12
features 11, 9
select device menu 12
system status screen 13
Conext XW+ Inverter/Charger home screen 13
connections menu
default settings 6
description 38
Copying Settings From Another Unit 39
custom battery menu 19
default settings 4
Information about Your System form ii
inverter
purchase date ii
serial number ii
Inverter Information Panel 10
inverter settings menu
default settings 3
description 7
inverter status LED 3
D
K
default settings, restoring 40
device home screen 13
H
home screen 13
I
K1 and K2 relay 10
IX–1
Index
keypress for system standby mode 10
L
LEDs 5
load shave 15, 23, 27
M
manual faults 15
mechanical specifications 6
menu map 6, 2
meters screen 15
multi-stage charging process 11
Multi-unit Operation 8
N
no float charging stage 14
P
passthru 15
peak load shaving 27
Performance Highlights 2
Power Save 41
proof of purchase ii
purchase date ii
T
Three-Phase Configuration 36
three-stage charge mode 11
Time-of-Use (TOU) metering 27
troubleshooting
battery charger 7
fault messages 14
general guidelines 2
inverter 4
motor loads 3
problem loads 3
resistive loads 3
warning messages 10
two-stage charge mode 14
U
Up arrow button 9
W
warning
automatic 11
manual 11
Q
qualifying AC 14
R
recharge volts 10
restore default settings 40
RPO 41
S
Schneider Electric website iv
search mode 15, 2, 7, 8
self-consumption 28
sell mode 15, 23
serial number ii
specifications
electrical 2
mechanical 6
standby 15
standby button 9, 10
startup/shutdown button 6
state of charge LEDs 7
System Control Panel. See Conext SCP
system home screen 11
system standby mode 10
system status screen 13
IX–2
975-0713-01-01
Schneider Electric
www.schneider-electric.com
For other country details please contact your local Schneider Electric Sales Representative or visit our website at:
http://www.schneider-electric.com/sites/corporate/en/support/operations/local-operations/local-operations.page
975-0713-01-01 Revision A
Printed in China
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement