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D
I G I T A L
W
E I G H T
I
N D I C A T O R
GSE 350
Reference Manual 3.2
GSE 350
Reference Manual 3.2
GSE 350 Digital Weight Indicator Reference Manual
Copyright © 2000 GSE Scale Systems. All rights reserved.
Published by:
GSE Scale Systems
22705 Heslip Drive
Novi, MI 48375
USA
Information in this Reference Manual is subject to change without notice due to correction or enhancement. The information described in this manual is solely the property of GSE. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording and sold for any monetary figure without the express written permission of GSE.
GSE Locations Worldwide
GSE Scale Systems
22705 Heslip Drive
Novi, MI 48375
U.S.A.
Phone: (800) 755-7875 www.gse-inc.com
GSE Canada, Inc.
617 East Lake Road
Airdrie, Alberta Canada T4B 2B8
Phone:(403) 948-9921
Fax: (403) 948-1449
GSE Advanced Industrial
Technologies GmbH
Hausinger Strasse 4
Langenfeld, Germany 40764
Phone: (49) 21 739 16399-0
Fax: (49) 21 739 16399-9
C
ONTENTS
1 CHAPTER 1: INTRODUCTION............................................................................ 1
C ONVENTIONS AND S YMBOLS .................................................................................... 1
D ISPLAY ....................................................................................................................... 2
LED Display ........................................................................................................... 2
LCD Display ........................................................................................................... 2
Annunciators........................................................................................................... 3
K EYPAD ........................................................................................................................ 3
S TANDARD F UNCTIONS ............................................................................................... 4
W
EIGH
M
ODE
F
UNCTIONS
.......................................................................................... 4
S
ECONDARY
F
UNCTIONS
............................................................................................. 4
S
PECIFICATIONS
........................................................................................................... 6
2 CHAPTER 2: INSTALLATION............................................................................. 9
M OUNTING ................................................................................................................... 9
Desktop Mounting ................................................................................................10
Panel Mounting ....................................................................................................10
Permanent Mounting............................................................................................10
W IRING .......................................................................................................................11
Load Cell Connections.........................................................................................13
Serial Port Connections .......................................................................................13
Remote Key Connection .......................................................................................15
Power Connection ................................................................................................15
3 CHAPTER 3: M350 CONFIGURATION ...........................................................19
S ETUP M ODE ..............................................................................................................19
S ELECTION P ARAMETERS ..........................................................................................22
K EY -I N P ARAMETERS ................................................................................................23
P ARAMETER M AP ......................................................................................................24
Parameter Map Details........................................................................................30
A
NALOG
O
UTPUT
S
ETUP
...........................................................................................40
A
NALOG
O
UTPUT
C
ALIBRATION
..............................................................................41
Entering Analog Calibration Values...................................................................42
Analog Output Example .......................................................................................43
C USTOM T RANSMIT S ETUP .......................................................................................43
Elements of a Custom Transmit...........................................................................44
Writing a custom transmit ASCII text file ...........................................................44
Accessing Setup and Clearing Existing Custom Transmit ................................44
Entering ASCII Text .............................................................................................45
Entering ASCII Control Codes ............................................................................45
i
Parameter Selection Numbers.............................................................................47
Exiting Setup Mode and Saving Changes...........................................................48
T IME /D ATE O PERATION .............................................................................................49
R
EMOTE
K
EY
O
PERATION
.........................................................................................51
R
EMOTE
S
ERIAL
O
PERATION
....................................................................................51
Display Capture Utility ........................................................................................52
G ENERAL S ETPOINT S ETUP .......................................................................................53
Activation Methods (General) .............................................................................54
Pre-acts (General)................................................................................................54
Learn Feature (General)......................................................................................55
Pause Feature (General) .....................................................................................55
Changing Targets from the Weigh Mode (General) ..........................................57
Example (General)...............................................................................................57
Bargraph (General)..............................................................................................58
P ERCENTAGE C HECK -W EIGHING ..............................................................................61
Setpoint Activation (Percentage Check-Weighing)............................................61
Changing Targets from the Weigh Mode (Percentage Check-Weighing)........62
Example (Percentage Check-Weighing).............................................................62
F ILL ............................................................................................................................62
Activation Method (Fill).......................................................................................63
Pre-acts (Fill) .......................................................................................................63
Learn Feature (Fill) .............................................................................................64
Pause Feature (Fill).............................................................................................64
Changing Targets from the Weigh Mode (Fill)..................................................64
Example (Fill).......................................................................................................64
B ATCH ........................................................................................................................64
Activation Method (Batch)...................................................................................65
Pre-acts (Batch)....................................................................................................66
Learn Feature (Batch)..........................................................................................66
Pause Feature (Batch) .........................................................................................66
Changing Targets from the Weigh Mode (Batch) ..............................................66
Example (Batch)...................................................................................................66
D ISCHARGE ................................................................................................................68
Activation Method (Discharge)...........................................................................68
Pre-acts (Discharge)............................................................................................69
Learn Feature (Discharge)..................................................................................69
Pause Feature (Discharge)..................................................................................69
Target Changes from the Weigh Mode (Discharge)..........................................69
Example (Discharge)............................................................................................70
B
OTH
..........................................................................................................................70
Activation Method (Both).....................................................................................71
Pre-acts (Both) .....................................................................................................71
Learn Feature (Both) ...........................................................................................72
ii
Pause Feature (Both)...........................................................................................72
Target Changes from the Weigh Mode (Both)....................................................72
Example (Both).....................................................................................................72
A
BSOLUTE
C
HECK
-W
EIGHING
..................................................................................73
Setpoint Activation (Absolute Check-Weighing) ................................................73
Changing Targets from the Weigh Mode (Absolute Check-Weighing).............74
Example (Absolute Check-Weighing)..................................................................74
I NDEPENDENT S ETPOINT O PERATION .......................................................................75
Setpoint Activation (Independent).......................................................................76
Changing Targets from the Weigh Mode (Independent) ...................................76
Example (Independent) ........................................................................................78
RS-485 M ULTI -D ROP N ETWORK S ETUP AND O PERATION ......................................79
Setup ......................................................................................................................79
Operation ..............................................................................................................79
Network Protocol .................................................................................................80
4 CHAPTER 4: CALIBRATION MODE...............................................................81
S ETUP M ODE C ALIBRATION ......................................................................................81
F AST C ALIBRATION ...................................................................................................81
P ERFORMING C ALIBRATION ......................................................................................82
Establishing Zero .................................................................................................82
Establishing Span.................................................................................................88
Exiting Calibration...............................................................................................89
5 CHAPTER 5: LEGAL-FOR-TRADE ..................................................................91
NTEP R
EQUIREMENTS
..............................................................................................91
NTEP Panel Mount Requirements ......................................................................92
OIML R EQUIREMENTS ..............................................................................................93
O THER R EQUIREMENTS .............................................................................................93
S EALING AND A UDIT T RAILS ....................................................................................93
Physical Seal.........................................................................................................94
Audit Trails ...........................................................................................................95
6 CHAPTER 6: M350 OPTION KITS ....................................................................97
M350 P
ERIPHERAL
O
PTIONS
....................................................................................97
S
WIVEL
B
RACKET
......................................................................................................98
P ANEL M OUNT K IT ....................................................................................................99
A NALOG C ARD C ONNECTIONS ...............................................................................100
Analog Board Diagnostic and Test Procedures ...............................................105
A NALOG O UTPUT S ETUP .........................................................................................108
A NALOG O UTPUT C ALIBRATION ............................................................................109
Entering Analog Calibration Values.................................................................109
Analog Output Example .....................................................................................111
iii
S ETPOINT C ARD C ONNECTIONS ..............................................................................112
Setpoint Board Diagnostic and Test Procedures .............................................119
RS-485 N ETWORKING .............................................................................................120
Network Connections .........................................................................................122
20
M
A C
URRENT
L
OOP
O
PTION
..............................................................................126
Installation:.........................................................................................................126
Bi-directional ......................................................................................................126
Baud ....................................................................................................................126
Active/Passive .....................................................................................................127
Isolation ..............................................................................................................127
Max Voltage........................................................................................................127
Connections ........................................................................................................127
Cable ...................................................................................................................127
Connected Devices .............................................................................................128
B ATTERY P OWER S UPPLY .......................................................................................129
Mounting.............................................................................................................129
Pin Designations ................................................................................................132
ON/OFF Switch ..................................................................................................132
Battery Charging ................................................................................................133
Temperature Sensing..........................................................................................133
Low Battery Indication ......................................................................................134
Dead Battery Shutdown .....................................................................................134
Automatic Shutdown ...........................................................................................134
S PLASH G UARD P ROTECTION .................................................................................135
I NTERNATIONAL T RANSFORMER - IEC ..................................................................135
Specifications ......................................................................................................136
Transformers Available .....................................................................................136
IEC line cords Available ....................................................................................136
7 CHAPTER 7: TROUBLESHOOTING..............................................................139
E RROR M ESSAGES ...................................................................................................139
Operational Errors.............................................................................................139
Setup Mode Errors .............................................................................................140
Hardware Errors ................................................................................................141
Calibration Errors..............................................................................................142
Communication Errors ......................................................................................142
Miscellaneous Errors.........................................................................................143
V
IEWING
S
ETUP
.......................................................................................................143
I
NFORMATION
M
ODE
P
ARAMETERS
.......................................................................144
A/D C
ALIBRATION
P
ROCEDURE
.............................................................................146
iv
T
ABLES
Keyboard Functions .......................................................................................................... 5
Serial Port Connections ...................................................................................................14
Parameter Map.................................................................................................................24
Analog Output Parameters..............................................................................................40
Analog Output Calibration Parameters ..........................................................................41
ASCII / HEXADECIMAL CONVERSION CHART...................................................46
Custom Transmit Parameter Selection Numbers...........................................................47
Custom Transmit Format Codes .....................................................................................48
Remote Key Operations ..................................................................................................51
Remote Serial Operation.................................................................................................51
Setpoint Operations .........................................................................................................53
Setpoint Setup (Percentage Check-Weighing)...............................................................61
Setpoint Setup (Fill) ........................................................................................................62
Setpoint Setup (Batch) ....................................................................................................65
Setpoint Setup (Discharge) .............................................................................................68
Setpoint Setup (Both) ......................................................................................................71
Setpoint Setup (Absolute Check-Weighing)..................................................................73
Setpoint Setup (Independent)..........................................................................................75
RS-485 Network Parameters ..........................................................................................79
RS-485 Mode of Operation.............................................................................................79
Analog Output Connections..........................................................................................103
Analog Output Parameters............................................................................................108
Analog Output Calibration Parameters ........................................................................109
Setpoint Output Specifications ( 24350B-100C0)........................................................115
Setpoint Control Connections (24350B-100C0) .........................................................115
Setpoint Output Specifications ( 24350B-100C1)........................................................116
Setpoint Control Connections (24350B-100C1) .........................................................116
Setpoint Output Specifications ( 24350B-100C2)........................................................117
Setpoint Control Connections (24350B-100C2) .........................................................117
Information Parameters.................................................................................................144
v
F
IGURES
M350 LED Display ........................................................................................................... 2
M350 LCD Display (with Bargraph)................................................................................ 2
M350 Keypad..................................................................................................................... 3
Model 350 Meter (Zinc Die Cast) ......................................................................... 9
Model 350 Meter (Stainless)............................................................................................. 9
M350 Zinc Die Cast with Optional Mounting Bracket.................................................10
M350 Zinc Die Cast Front Dimensions .........................................................................11
M350 Zinc Die Cast Enclosure Wiring Label ...............................................................12
M350 Stainless Steel Dimensions ..................................................................................12
13GSE Serial Cable, Part Number 22-30-29752 ...........................................................14
Remote Key Connection (die cast) .................................................................................15
Remote Key Connection (stainless) ...............................................................................15
M350 Power Connections ...............................................................................................17
M350 Internal Power Supply Model AC Connections (J10)........................................18
M350 Internal Power Supply Model DC Connections (J9) ..........................................18
Custom Transmit File ......................................................................................................45
Example #1 Bargraph Segments (Weighted Value)......................................................59
Example #2 Bargraph Segments (Weighted Value)......................................................59
Examples of the Bargraph "Below, Within and Above Tolerance".............................60
Panel Mount Unit - Serial Number Tag (Die Cast Model)...........................................92
Program Jumper (External and Internal Power Supply Boards) ..................................95
Physical Seals (Zinc Die-Cast / Stainless Steel)............................................................95
Swivel Bracket Installation (Die Cast Model) ...............................................................98
M350 Panel Mount Installation (Die Cast Model) ........................................................99
Option Board Installation (Die Cast M350).................................................................101
Option Board Installation (Stainless M350) ................................................................102
Option Board Installation (Die Cast M350).................................................................113
Option Board Installation (Stainless M350) ................................................................114
Wire the option connector in accordance with the label (left to right). .....................118
RS-485 Installation (Die Cast Model) .........................................................120
RS-485 Installation (Stainless Model) ........................................................................121
Half Duplex Wiring Schematic .....................................................................................124
Full Duplex Wiring Schematic ......................................................................................125
Battery Option Installation (Stainless Steel Enclosure) ..............................................130
Battery Option Installation (Die Cast Enclosure) ........................................................131
M350 (Stainless), Main Board Battery Connection (J3) on Die Cast Model ............132
20mA Installation.........................................................................................................137
vi
1
C
HAPTER
1: I
NTRODUCTION
Thank you for selecting the GSE Model 350 Digital Weight Indicator. The
Model 350 continues the GSE tradition of Excellence in Weighing
Technology . A properly installed and maintained Model 350 will provide many years of reliable, accurate performance.
The chapters of this manual focus on various aspects of the indicator:
Chapter 1: Introduction Basic operating information.
Chapter 2: Installation Installation instructions.
Chapter 3: Configuration Access the Setup Mode and configure the indicator to a specific application.
Chapter 4: Calibration Access the Calibration Mode and match the load sensing device to the indicator.
Chapter 5: Legal-for-Trade Legal-for-trade information.
Chapter 6: Options Available options.
Chapter 7: Troubleshooting Troubleshooting help and error messages.
C
ONVENTIONS AND
S
YMBOLS
Although the M350 displays alpha characters in both upper and lower case, conventional capitalization is used when referencing display prompts.
[SELECT]
200 [SELECT]
[CLR]+[SELECT]
Setup
Setup ~ Enter ~ =Cal!
Fast ~ Cal!
First ~ 0? ~ 0.00
!
i
A keypress appears in bold with brackets.
Numeric entries are also in bold.
‘ + ’ indicates keys pressed simultaneously.
Display prompts are bold italic.
‘ ~ ’ indicates multi-part display prompts.
Display prompts can appear in sequence .
Indicates important considerations.
Provides additional information.
1
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
D
ISPLAY
The M350 indicator is available with either a six digit, 7-segment green
LED display, or a six digit, 7-segment black LCD display. The M350 displays alpha-numeric data, but due to the nature of 7-segment
LEDs/LCD and the limitation of six digits, some information is abbreviated.
All segments and annunciators are illuminated for a brief display test upon power up. The current gross weight is then displayed in default units.
LED D ISPLAY
The LED display is a six digit, 7-segment bright green LED screen with 10 annunciators to show weight and status information. The SP1, SP2, and
SP3 annunciators are red, green, and yellow, respectively.
Figure 1-1: M350 LED Display
LCD D ISPLAY
The LCD display is a six digit, 7-segment black LCD screen with 10 annunciators and a bargraph to show the M350’s operational status.
Figure 1-2: M350 LCD Display (with Bargraph)
2
C H A P T E R 1 : I N T R O D U C T I O N
A NNUNCIATORS
Annunciators provide mode and status information. When illuminated, they indicate the following conditions:
SP1
SP2
Setpoint #1 activated (relay 1 closed).
Setpoint #2 activated (relay 2 closed).
SP3
Ú
0
Ù
Setpoint #3 activated (relay 3 closed).
Displayed weight is at center-of-zero (
±
¼ display graduation).
MOTION Scale is in motion. Motion inhibited transmits and motion inhibited setpoint activation will be delayed until motion ceases.
GROSS Displayed value represents the current gross weight.
NET
QTY lb kg
Displayed value represents the current net weight.
Displayed value represents the current piece quantity (Count).
The displayed value is represented in pounds.
The displayed value is represented in kilograms.
K
EYPAD
A sealed 5-button elastomer keypad is used for operator input. Each key is assigned two distinct functions. Various key combinations are also used.
Each key has secondary functions, allowing an operator to enter target values, perform piece samples, access setup parameters, etc.
Figure 1-3: M350 Keypad
3
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
S
TANDARD
F
UNCTIONS
The M350 includes built-in functions that you can enable through the
Indicator Setup. Refer to Chapter 3: Configuration for information on the setup and operation of the following standard functions:
•
Check-weighing
•
Fill, two-speed, single ingredient
•
Batch, three ingredients, single-speed
•
Loss-in weight, two-speed emptying
•
Independent setpoints
•
Parts counting
•
Remote key operation
•
Selectable, built-in data transmission formats
•
Custom data transmissions
W
EIGH
M
ODE
F
UNCTIONS
The M350 keypad has five primary Weigh Mode functions:
[ZERO]
[PRINT]
[UNITS]
[TARE]
[SELECT]
Performs a gross zero and selects the gross mode.
Initiates data transmission out the communication port.
Toggles the units of measure between ‘lb’ and ‘kg’.
Tares any displayed weight and selects the net mode.
Toggles the display between GROSS, NET, QUANTITY and setpoint TARGETS (if enabled).
S
ECONDARY
F
UNCTIONS
The M350 keypad performs different functions in the Weigh Mode, the
Setup Mode, and the Calibration Mode. Secondary functions for each key allow you to perform additional tasks.
4
C H A P T E R 1 : I N T R O D U C T I O N
Table 1-1: Keyboard Functions
Key Press
[ZERO / CLR]
[PRINT /
[UNITS / p u
]
]
Weigh Mode
Performs a gross zero function and/or clears an entry in progress.
Hold this key on power-up to turn on the display regardless of P420.
Performs a print function and/or
‘scrolls’ through digits during setpoint entry.
Toggles between ‘lb’ and ‘kg’ and/or advances cursor to next entry position.
[TARE /
8
[ZERO]+
[TARE]+
[ZERO]+
[TARE]
[ZERO]+
[PRINT]
[PRINT]+
[UNITS]
]
[SELECT/ON]
[SELECT]
[SELECT]
Performs an auto-tare function (if enabled) and/or accepts an entry in progress.
Toggles between display modes and/or restores power to the indicator (if autoshutoff enabled).
Access Setup Mode.
No function.
Absolute clear – clears an entry in progress and/or clears the value of a parameter.
Backspace – erases the right-most digit during data entry.
Reverse character scroll during data entry.
Count Mode
Performs a quantity zero function and/or clears an entry in progress.
Performs a print function and/or
‘scrolls’ through digits during setpoint entry.
Toggles through standard sample sizes and/or begins a new sample entry.
Performs an auto-tare function and requests a piece sample and/or accepts an entry in progress.
Toggles between display modes and/or restores power to the indicator (if autoshutoff enabled).
Access Setup Mode.
No function.
No function.
Backspace – erases the right-most digit during sample entry.
Reverse character scroll during sample entry.
entry.
Backspace – erases right-most digit during data entry.
Reverse character scroll during data entry.
Setup Mode
Exits the Setup Mode and/or answers “NO” to query prompts and/or clears an entry in progress.
‘Scrolls’ through digits during data
Advances cursor to next entry position and/or cycles prompts.
Accepts an entry in progress and/or
‘scrolls’ through parameter sub-set selections and/or answers ‘YES’ to query prompts.
Advances to the next setup parameter.
No function.
Return to the previous setup parameter.
Clears any entry in progress.
5
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
S
PECIFICATIONS
PERFORMANCE
Full Scale (F.S.)
Resolution
A/D Conversion
Zero Track
Operating Temperature
Units of Measure
Selectable 0 to 999,990
20-bit A/D converter, 100,000d displayed
±
500,000d internal
60 Hz
0 – 100% of F.S.
-10
°
C to +40
°
C lb, kg
ELECTRICAL
Power Requirement
Excitation Voltage
Excitation Current
F.S. Signal Input
Signal Connection
PROCESS CONTROL
Outputs
Remote Input
Zinc Die Cast Enclosure
Input (J4): 12 – 26VAC / 12 – 36 VDC
One of four wall mount transformers supplied:
North American:
Input: 120VAC, 30W, 60 Hz
Output: 20VAC, 800mA
United Kingdom / Ireland:
Input: 230VAC, 28W, 50 Hz
Output: 20VAC, 800mA
Continental Europe:
Input: 230VAC, 28W, 50 Hz
Output: 20VAC, 800mA
IEC 320: (table top transformer with IEC 320 receptacle)
Input: 230VAC, 28W, 50 Hz
Output: 20VAC, 800mA
Stainless Steel Enclosure
Input (J10): 85 – 265VAC, 0.5A; 50/60 Hz (internal power supply version)
Input (J9): 10 – 36VDC, minimum 0.8A w/no options or 1.25A w/options installed (internal power supply version)
10 VDC
180 mA max. / (6) 350
Ω
bridge
0.1 mV/V min – 20 mV/V max
4 lead or 6 lead with sense
See OPTIONS
1 momentary contact closure (100ms minimum)
TARE, PRINT, ZERO
6
C H A P T E R 1 : I N T R O D U C T I O N
COMMUNICATIONS
Serial
Data Output
Protocol
Baud Rate
DISPLAY
LED
LCD
RS232 bi-directional serial port
12 selectable fixed-format transmissions or
1 custom format (programmable via RS232)
Selectable
150 – 9600 bps
6-digit weight display, 0.8” (22mm) height
10 LED annunc iators for operational status
6-digit weight display, 1.0” (25.4mm) height
10 LCD annunciators for operational status
Built in LCD status bargraph
ENCLOSURE
Zinc Die Cast
Wall/Ceiling Mount
Shipping Weight
Stainless
Black powder coat paint, self standing on flat surface
Optional stainless steel swivel bracket
7 lb (3 kg)
Washdown stainless steel enclosure w/stainless steel swivel bracket (table, wall or ceiling mount)
OPTIONS
Analog Output Module
Relay Output Module
0 – 10 VDC/5mA, 0 – 20mA/10V, 4 – 20mA/10V, electrically isolated, 16 bit resolution with 16ms response time, mounts internal to enclosure
Three (3) solid-state 24 – 280 VAC, 1A with 16ms response time, mounts internal to enclosure or three
Wall Mount Kit
Panel Mount Kit
(3) 3 – 60 VDC, 2A
Swivel bracket/stand for zinc die cast enclosure
Mounts zinc die cast enclosure to user panel
Cutout: 7.33” – 7.45”w x 5.25” – 5.37”h x 2.25”d
Two Option Mount Kit
186.2 – 189.2mm x 133.4 – 136.4mm x 57.2mm
Mounts up to two option boards inside the stainless enclosure
Battery Power Supply Kits Two versions : one mounts inside the stainless steel
Splash Shield enclosure, the other mounts inside the die cast enclosure
Durable adhesive plastic that adheres to the front surface of the stainless steel enclosure model
20 mA Current Loop Enables the comm port to be a digital 20 mA current loop port.
7
2 C
HAPTER
2: I
NSTALLATION
This chapter contains information necessary for proper installation of the
M350. Please review these instructions before installing your controller.
High voltages may exist within the enclosure. To prevent the risk of electrical shock, ALWAYS unplug the M350 when opening the enclosure.
Installation and servicing of the M350 should be performed only by authorized and qualified service personnel.
For information on installing options, see Chapter 6: Options . For NTEP and OIML details, see Chapter 5: Legal-for-Trade.
!
IMPORTANT!
The 350 Series indicators do not include an on/off switch and therefore must be installed near a power outlet socket that is easily accessible and in keeping with UL/CSA Safety Standards.
INFORMATION IMPORTANT!
Prendre note que les contrôleurs de serie 350 ne sont pas munis d'interrupteurs "Marche / Arrêt". Par conséquent, il devront être installés près d'une source d'alimentation secteur accessible pour demeurer sous les exigences des normes de sécurité
UL/CSA.
M
OUNTING
The standard M350 zinc die cast enclosure is a NEMA1 (IP 20) equivalent.
The M350 stainless steel enclosure meets NEMA 4X type specifications.
When choosing a mounting location, ensure that the unit is not installed in a washdown area or conductive dust environment.
Figure 2-1: Model 350 Meter
(Zinc Die Cast)
9
Figure 2-2: Model 350 Meter
(Stainless)
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
D ESKTOP M OUNTING
The standard enclosure is designed for desktop mounting. When set on a flat surface, the front face is angled for easy viewing. All wiring enters from the rear and can be secured with the included screw mounted cable ties.
P ANEL M OUNTING
The optional panel mount kit allows the zinc die cast enclosure to be installed in a user panel. Allow for 2.00”
(57.2mm) depth behind the panel surface. See Panel Mount
Kit on page 99 for more details.
PANEL
5.25” – 5.37”
(133.4 – 136.4mm)
7.33” – 7.45”
(186.2 – 189.2mm)
CUTOUT
P ERMANENT M OUNTING
The optional mounting bracket allows the zinc die cast enclosure to be securely fastened to another surface. The bracket is attached to the indicator with two thumbscrews and can be swiveled to an optimal viewing angle. See Figure 2-3,
Figure 2-4, and Swivel Bracket
Installation on page 98 for more details.
Figure 2-3: M350 Zinc Die Cast with
Optional Mounting Bracket
10
C H A P T E R 2 : I N S T A L L A T I O N
Figure 2-4: M350 Zinc Die Cast Front Dimensions
W
IRING
A description of all wiring terminals is included on the bottom label of the zinc die cast enclosure as shown in Figure 2-5 .
Figure 2-5: M350 Zinc Die Cast Enclosure Wiring Label
11
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Figure 2-7: M350 Stainless Steel Dimensions
12
C H A P T E R 2 : I N S T A L L A T I O N
L OAD C ELL C ONNECTIONS
A high quality braided shield cable with 16 to 24 AWG stranded wire is recommended for load cell or summing box connections. Secure the cable by the cable tie on the die cast model, or rout it through the strain relief supplied on the back of the internal power supply models (see Figure 2-8 ).
Either four or six conductor cables can be used.
!
Do not tin the ends of the load cell wire! A terminal connection free from the effects of vibration and oxidation can be assured only if the load cell terminals securely grip a bare, stranded wire.
When using four conductor cables, (+ Excitation) must be connected together with (+ Sense), and (- Excitation) must be connected together with (- Sense).
Utilizing the (+) and (-) Sense leads of six conductor cables provides compensation for variations in the excitation voltage due to resistance changes in the cable.
Figure 2-8: Cable Tie on Die Cast & Connector (J8) on Internal Power Supply Models
S ERIAL P ORT C ONNECTIONS
Before connecting to the serial port, consideration should be given to the communication protocol and to any remote key requirements. For information on remote key operation, refer to Remote Key Operation on page 49. Use Table 2-1 to determine proper wiring to the communication port.
Communication connections are made through the DB9 male connector on the rear of the enclosure or a pigtailed cable through a strain relief (internal power supply model on J6 comm connection). The cable should be 20 to
28 AWG with a braided or foil shield for either model type. For maximum noise immunity on the die cast model, use a mating DB9 connector with a
13
3 5 0 D I G I T A L W E I G H T I N D I C A T O R metal hood and a braided shield cable. Ensure that the braid makes good connection with the hood. The maximum recommended cable length is 50 feet (15 meters). However, much longer connections are possible if using a properly shielded, low-capacitance cable.
Table 2-1: Serial Port Connections
7
8
5
6
9
1
2
3
4
REM
RXD
TXD
+5V
GND
GND
RTS
CTS
PI
Description
Remote Key
Receive
Transmit
+5 VDC
Digital Ground
Digital Ground
Request-to-Send
Clear-to-Send
Do Not Connect
Label
(Die cast encl. only)
REMOTE KEY
RXD
TXD
VCC
GND
GND
RTS
CTS
Figure 2-9: GSE Serial Cable, Part Number 22-30-29752
A communication cable (P/N: 22-30-29752) may be purchased from GSE for connection to a serial device having a DB25 or DB9 connector (see
Figure 2-9 ).
14
C H A P T E R 2 : I N S T A L L A T I O N
R EMOTE K EY C ONNECTION
A remote key may be connected to the M350 communication port to provide remote activation of print, tare, or zero functions.
The connection for the remote key input is between pin 1 and pin 6 of the
DB9 communication port connector (see Figure 2-10 for die cast, Figure
2-11 for stainless). A two-conductor shielded cable between 28 and 20
AWG is recommended. The input requires a contact closure from a pushbutton switch, a ‘dry’ relay contact, a photo-eye, and a proximity sensor or other such device. A closure initiates the operation specified at P800.
!
Do not apply an external voltage to remote key terminals! Only a contact closure is required to activate the remote key input.
The open circuit voltage across the remote key pins is
+5 VDC. A closed switch will conduct about 0.25 mA.
Therefore, a low-voltage switch with gold-plated contacts is recommended. A
Mercury-wetted switch will also work well. A minimum contact duration of 100 ms is required. Once invoked, the selected remote key operation will not repeat until the contact is released and closed again.
Figure 2-10: Remote Key Connection (die cast)
Figure 2-11: Remote Key Connection (stainless)
P
OWER
C
ONNECTION
There are four ways to power the M350, with a 120 VAC wall mount transformer, with a 12-36VDC external source, with a 12-26VAC external source, or with the internal battery option.
i
The M350 does not include an on/off switch. In keeping with UL/CSA
Safety Standards it must be installed near an easily accessible power outlet.
Note that the [ON] key does not connect/disconnect the line voltage. It
‘awakens’ the M350 from a ‘sleep’ mode.
15
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
120VAC W ALL M OUNT T RANSFORMER
An external wall mount transformer is supplied with the die cast M350 for connection to 120VAC, 60Hz power.
!
Do not cut the ground prong off the wall mount transformer!
To connect the transformer:
1.
Insert the polarized plug into the rectangular power connector.
2.
Press the plug firmly into the hole to ensure it is seated properly.
3.
Plug the wall mount transformer into a nearby wall outlet. Use only a three-wire grounded outlet.
E XTERNAL AC OR DC P OWER S UPPLY
The M350 may be powered by an external 12-36 VDC or 12-26 VAC power source. The power supply should have a minimum current rating of
800mA with no options installed, a minimum current rating of 1.25A with options installed. Wire the plug as shown in Figure 2-12 . Recommended plugs are AMP MTA .156” or MOLEX .156”. External DC power supply cable GSE P/N 22-30-35459 plugs into the 350 die cast unit rear connector with bare wires on the other end.
DC
AC
Pin 1 Pin 2
+ N/C
L GND
Pin 3 Range
12-36 VDC
N
12-26 VAC
50/60 HZ
Figure 2-12: M350 Power Connections
16
C H A P T E R 2 : I N S T A L L A T I O N
I NTERNAL AC OR DC P OWER S UPPLY
The M350 internal power supply model may be powered by an external VAC power source connected to (J10) on the main board.
Input power can be 85 – 265VAC, 0.5A;
50/60 Hz. See the internal AC power connector as shown in Figure 2-13 . The ground wire is connected to a stud on the enclosure.
Figure 2-13: M350 Internal
Power Supply Model AC
Connections (J10)
The M350 internal power supply model may be powered by an external 10-36 VDC power source connected to (J9) on the main board (also see Battery Power Supply on page 126). The power supply should have a minimum current rating of 800mA with no options installed, a minimum current rating of 1.25A with options installed.
Figure 2-14: M350 Internal
Power Supply Model DC
Connections (J9)
Wire the plug as shown in Figure 2-14 . Do not connect pins 3 or 4. The mating connector can be purchased from a local electronics supplier. Recommended connectors are GSE PN: 26-20-3365 (24
AWG) or GSE PN: 26-20-3366 (22 AWG) /
AMP PN: 640441-3 (24 AWG) or AMP PN:
640440-3 (22 AWG). Connector cover GSE
PN: 26-20-3389 or AMP PN: 643075-3.
DC
Pin 1 Pin 2 Pin 3 Range
+ N/C 12-36 VDC
17
3 C
HAPTER
3: M350 C
ONFIGURATION
For the indicator to operate properly, you must configure a group of specific, individually numbered parameters. There are three types of parameters: Selection Parameters, Toggle Parameters and Key-In
Parameters. Assigning a value to a parameter tells the indicator how to respond to a specific situation. See Table 3-1 for a complete list of all parameters.
S
ETUP
M
ODE
To prevent accidental changes to the Indicator Setup, a sequence of keystrokes is used to gain access to the Setup Mode:
[ZERO] + [SELECT] , [SELECT] , [ZERO] , [PRINT] , [UNITS] , [
8
]
These keystrokes must be made within five seconds, or the indicator will return to the Weigh Mode.
To access the Setup Mode:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup ~ Enter Code
2.
Press [SELECT] .
S
3.
Press [ZERO] .
SZ
4.
Press [PRINT] .
SZP
5.
Press [UNITS] .
SZPU
6.
Press [
8
] .
Chgs ~ Poss!
P110.— — ~ F.S.= ~ 100
19
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
To access Setup in a view-only mode:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup ~ Enter Code
2.
Press [
8
] .
No ~ Chgs
P110.— — ~ F.S.= ~ 100 i
When exiting the Setup Mode, the M350 prompts whether to enter the
Calibration Mode. (See Chapter 4 for Calibration Mode procedures). The display will then prompt to save any changes.
To advance to the next parameter:
1.
Press [SELECT] .
P111.09 ~ 1Grad ~ 0.01
2.
Press [SELECT] .
P112.05 ~ Ztrac ~ 0.5 d
3.
Continue pressing [SELECT] to advance through all setup parameters.
To access the previous parameter:
1.
Press [ p
] .
.
2.
Press [SELECT] .
P111.09 ~ 1Grad ~ 0.01
3.
Repeat [ p ] [SELECT] to back up one parameter.
i
When accessing a parameter, the parameter number appears briefly. The display then toggles between the parameter name and selection. Pressing
[UNITS] will again briefly display the parameter number.
20
C H A P T E R 3 : C O N F I G U R A T I O N
To access a specific parameter (for example P200):
1.
Press [ p ] four times to select the first digit.
2
2.
Press [ u
] to advance to the next digit.
2.
3.
Press [ p
] once to select the next digit.
20
4.
Press [ u
] to advance to the next digit.
20.
5.
Press [ p
] once to select the next digit.
200
6.
Press [SELECT] to advance to the parameter.
P200.00 ~ Baud ~ 9600 i
For information on accessing information parameters (P60000 – P65002), see Information Mode Parameters on page 144.
To exit the Setup Mode and save changes:
1.
Press [ZERO] to begin exiting Setup Mode.
Enter ~ =CAL!
2.
Press [CLR] to bypass Calibration Mode.
Enter ~ =Stor
3.
Press [
8
] to save setup changes.
Enter ~ =End
4.
Press [
8
] to complete exit.
0.00
To exit the Setup Mode from the view-only mode:
1.
Press [ZERO] to begin exiting Setup Mode.
Enter ~ =End
2.
Press [ 8 ] to complete exit.
0.00
21
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
To exit the Setup Mode without saving changes:
1.
Press [ZERO] to begin exiting Setup Mode.
Enter ~ =CAL!
2.
Press [CLR] to bypass Calibration Mode.
Enter ~ =Stor
3.
Press [CLR] to exit without saving changes.
Enter ~ =Undo
4.
Press [
8
] to undo changes.
Enter ~ =End
5.
Press [
8
] to complete exit.
0.00
S
ELECTION
P
ARAMETERS
Selection parameters have a pre-defined list of choices to pick from. Each choice is numbered and corresponds to a certain value. The choice number is shown to the right of the decimal point within the parameter number.
Repeatedly pressing [ 8 ] while viewing a selection parameter cycles through the available choices, or you can key in the choice number.
P 200.00
Indicates Parameter Parameter Number Choice Number
For example, parameter 200 is a selection parameter that holds the baud rate for the serial. This is a selection parameter because a choice number between 00 and 06 must be used. Each choice number corresponds to a different baud rate. To change the baud rate from the default value of 9600 to 4800, perform the following steps from the Setup Mode.
To change the baud rate from the default value of 9600 to 4800:
1.
Press 200 [SELECT] .
P200.00 ~ Baud ~ 9600
2.
Press [
8
] once.
P200.01 ~ Baud ~ 4800
22
C H A P T E R 3 : C O N F I G U R A T I O N
K
EY
-I
N
P
ARAMETERS
Key-In Parameters are not limited to a list of choices, although there may be upper and lower value limits. A Key-In Parameter requires that a numeric value be entered using the front panel keys. Key-In Parameters are shown with two hyphens after a decimal point within the parameter number.
P 110.--
Indicates Parameter Parameter Number Denotes “Key In”
To enter a Key-In Parameter:
1.
Press [ p
] . A decimal point is used to represent the entry position.
2.
Press [ p
] until the desired character appears.
3.
Press [ u
] . Another decimal point indicates the next entry position.
4.
Repeat steps 1 and 2 until your desired entry value is shown.
5.
Press [
8
] to enter your numerical value.
To setup a full scale value of 250 lbs:
1.
Press 110 [SELECT] .
P110.— — ~ F.S.= ~ 100
2.
Press [ p
] four times to select the first digit.
2
3.
Press [ u
] to advance to the next digit.
2.
4.
Press [ p ] six times to select the next digit.
25
5.
Press [ u
] to advance to the next digit.
25.
6.
Press [ p
] once to select the next digit.
250
7.
Press [
8
] to enter the value.
P110.— — ~ F.S.= ~ 250
23
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P161.00
P166.01
P169.00
P171.00
P179.00
P200.00
P201.01
P202.00
P203.00
P204.02
P
ARAMETER
M
AP
Table 3-1: Parameter Map
Parameter
Number
P110.--
Display
Name
F.S.=
Default
Value
100.00
P111.09
1Grad .01
P112.05
Ztrac 0.5d
P114.10
Stabl 1.0d
P116.04
Filtr 1 Sec
P117.01
Rate= 0.1 Sec
Zrang 100% P118.12
P150.00
Units lb
P151.01
P152.00
Unbut
Unit3
TarSa
AutoT
AtClr
AnAlg
Count
Baud
Data
Par’y
Stop
HndSh
Enable
None
Disable
Enable
Disable
Disable
Disable
9600
8 Bits
None
1 Bit
Soft
Valid Range/
Choices
.01 – 999,999
(Keyed In)
.00001 – 500
(24 Selections)
Off - 20.0d
(200 Selections)
Off – 20.0d
(200 Selections)
.065 – 8.00 Sec
(8 Selections)
0.05 – 20.0 Sec
(201 Selections)
.01 – 100%
(13 Selections) lb / kg
(Toggle)
Parameter
Description
Full Scale
Count By
Zero Track
Aperture
Stability
Window
Filter Setting
Display Update
Zero Button
Range
Default
(Calibration)
Units
Units Button Enable / Disable
(Toggle)
None / ounce / gram
/ lb oz
(4 Selections)
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
150 – 9600
(7 Selections)
7 – 8 Bits
(2 Selections)
None – Odd
(3 Selections)
1 – 2 Bits
(2 Selections)
None – Both
(4 Selections)
Additional
Unit
Tare Save
Auto Tare
Auto Tare
Clear
Analog Output
Option
Counting
Functions
Comm Baud
Rate
Comm Data
Bits
Comm Parity
Comm Stop
Bits
Comm
Handshake
31
31
30
30
31
Page
30
30
30
31
27
33
33
32
33
33
33
32
32
31
32
24
C H A P T E R 3 : C O N F I G U R A T I O N
Display
Name
Send
Stabl
TrTyp
RS485
Addr
Euro
Dsply
Backlight
Batt
Apo rStrc disbl
t-dAt
12 hours
Style
TdSEL disbl
R-But
Cust. Trans
SPAnn
SPBar
BarPc
SetPt
P440.00
P502.01
P503.01
P504.00
P505.01
P800.00
P1000.--
P5010.00
P5011.00
P5012.00
P5100.00
Parameter
Number
P210.01
P212.01
P213.01
P250.00
P251.00
P410.--
P420.01
P423.00
P426.00
P427.00
Off
Disable
Disable
12 hour
U.S.A
Disable
None
--
Enable
Disable
Default
Value
Press
Delay
--1--
Disable
Disable
Disable
On
Off
Disable
50%
None
Valid Range/
Choices
Off – Cycle
(4 Selections)
Off – Delay
(Toggle)
0 – 13
(Selection)
Enable / Disable
(Toggle)
Disabled and 4 –
254 (Key In)
Enable / Disable
9991/9990 (Key In)
Off – Auto
(3 Selections)
ON/OFF
Enable / Disable
(Toggle)
Off – Cycle
(15 Selections)
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
12 hour/24 hour
U.S.A or
International
Enable / Disable
(Toggle)
None – Setpoint
(5 Selections)
--
Enable / Disable
(Toggle)
Enable / Disable
(Toggle)
0 – 100
(Key In)
None – Indep
(8 Selections)
Parameter
Description
Comm
Transmit
Comm Motion
Transmission
Network
Option
Network
Address
OIML Enforce
Display
Function
Backlight
Battery Option annunciator
Auto Power for
Battery Option
NTEP Enforce
Time/Date
Function
Time/Date
Function
Time/Date
Function
Time/Date
Function
Remote Button
Function
Custom
Transmit
Setpoint
Annunciators
Bargraph
Display
Bargraph
Scaling
Setpoint
Operation
38
37
38
38
38
39
37
38
37
37
36
37
36
36
37
37
Page
33
34
34
39
39
25
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P ARAMETER M AP D ETAILS
P110 Full Scale Value (Key in)
Denotes the full scale capacity. This value should not exceed the rated capacity of the weighing device.
P111 Division Size (Selection)
Indicates the count-by and decimal point. Pressing [ZERO]+[TARE] will automatically select the choice closest to 10,000 divisions without exceeding 10,000 divisions.
P112 Zero Track Aperture (Selection)
Set in terms of number of divisions. Zero tracking eliminates small weight deviations at or near zero. Weight deviations within the selected window that have been stable for more than one second are tracked off, maintaining a gross or net zero condition.
The sum of weight values zeroed with auto zero tracking and [ZERO] cannot exceed the allowable zero range (P118).
Truck scales commonly use zero tracking to compensate for snow fall. To determine the proper setting in a counting application, divide the weight of the smallest product counted by the division size (P111). Zero Track should be set to 0 (off) for most setpoint filling operations. This prevents tracking off any product trickle at the start of a fill process.
P114 Stability (Selection)
Stability is defined as weight fluctuations within an aperture that can be regarded as being a stable weight. Deviations outside this aperture are considered motion, and the motion annunciator on the front panel will light accordingly. Once the scale settles within the stability aperture, the indicator will wait one second before the indicator is considered stable.
Print operations configured as motion delayed (P114) will not send the specified data until the weight reflects a stable reading as designated by this setting. Certain setpoint operations are also considered motion delayed and will not change states until a no-motion condition exists. See individual setpoint operations in the General Setpoint Setup section beginning on page 53 for information on how motion is handled.
P116 Filter (Selection)
Sets the indicator response time in terms of seconds. Filtering determines how quickly the indicator will respond to changing input signals. A low filter setting speeds the response, a higher filter setting will ‘dampen’ the response.
26
C H A P T E R 3 : C O N F I G U R A T I O N
Filtering is used to filter out weight fluctuations caused by outside sources, such as vibrations or air currents.
P117 Rate (Selection)
Specifies how often the display is updated with new data. For example, if
0.05 is selected, the controller will write data to the display every time an analog/digital conversion is made. Since the A/D converter updates every
0.05 sec, selections from 0.05 to 20.0 seconds are available. This parameter also affects the transmission rate for continuous transmit
(firmware revisions 450350-01002, 98-03-18 and later). Actual transmission intervals are dependent upon system setup.
P118 Zero Range (Selection)
Specifies how many divisions can be zeroed in terms of a percentage of full scale ( P110). The sum of weight values zeroed through the [ZERO] key and auto zero tracking cannot exceed this range .
A zero range of 5% is commonly used with large tank scales to avoid accidental zeroing of a full or partially full tank.
P150 Units (Toggle)
Set default units to ‘lb’ or ‘kg’. The indicator must use the default units during calibration procedures ( see Chapter 4) . The default units are the displayed units upon indicator power-up.
P152 Third Unit (Selection)
This parameter will allow the choice of three additional units (ounces, grams or lb oz) that may be accessed with the [UNITS] key. Only one will be available at a time. The third unit can only be selected if P151 is enabled. The third unit will be identified by an annunciator on the display.
This unit selection is not legal for trade. See Chapter 5: Legal-for-Trade for details.
P151 Units Button (Toggle)
When enabled, this parameter will allow [UNITS] to toggle the units between ‘lb’ and ‘kg’ (1000g). When disabled, the indicator will show only the calibration units as determined by P150.
P161 Tare Save (Toggle)
Enabling Tare Save allows the indicator to retain the tare value in the event of power loss. The correct net weight is restored upon power-up .
P166 Auto Tare (Toggle)
27
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
When enabled, pressing [TARE] will wait for a no-motion condition and then bring the scale to a net zero reading. Disabling will prevent keypad tare operations.
i
Note that if a setpoint activation method is set to [TARE] , disabling
Auto Tare will also disable the activation of that setpoint.
P169 Auto Tare Clear (Toggle)
Enabling this feature will cause the current tare value to be cleared to zero every time the indicator stabilizes within
±
5 graduations of gross zero
P171 Analog (Toggle)
Enable or disable the optional analog output module. See Analog Output
Setup on page 40 for all parameters associated with the Analog Output
Module.
P179 Count (Toggle)
When enabled, the quantity mode becomes accessible via the [SELECT] key .
The quantity mode is identified by the illumination of the QTY annunciator. For information on using quantity as a basis for setpoint operations, see individual setpoint setups in the General Setpoint Setup section beginning on page 53.
To sample using selectable fixed counts:
1.
From the Weigh Mode, press [SELECT] to view the current net weight.
1.05
2.
Press [SELECT] to view the current quantity .
0
3.
Press [ 8 ] to perform an auto-tare. The scale prompts to add 10 pieces.
Add ~ 10
4.
Press [UNITS] to toggle sample amounts between 5, 10, 20, 50 and
100.
Add ~ 20 ( [UNITS]
5.
Press [
8
] to sample and display the current quantity.
20
To sample using variable counts:
28
C H A P T E R 3 : C O N F I G U R A T I O N
1.
From the Weigh Mode, press [SELECT] to view the current net weight.
1.05
2.
Press [SELECT] to view the current quantity/count.
0
3.
Press [
8
] to perform an auto-tare. The scale prompts to add 10 pieces.
Add ~ 10
4.
Key in 36 , then press [ 8 ] to sample as 36 pieces and display the current quantity.
36
P200 Baud (Selection)
Set the desired baud rate for the communication port.
P201 Data Bits (Toggle)
Select 7 or 8 data bits for the transmission.
P202 Parity (Selection)
Select Odd , Even or None for the transmission parity.
P203 Stop Bits (Toggle)
Select 1 or 2 stop bits for communication port transmissions.
P204 Comm Handshake (Selection)
Select from None , Software (Xon/Xoff) , Hardware (CTS/RTS) , or Both .
P210 Send (Selection)
Transmission Send options:
Choice Number
P210.00
P210.01
P210.02
Selection
Name
Off
Press
Cont.
P210.03
Cycle
Description
All transmissions disabled.
Sends transmission with [PRINT] key.
Sends transmissions continuously.
Send single transmission after weight is reached and motion ceases. Must return display value below 0.1% of F.S. to reset for next transmission.
P212 Send Stability (Toggle)
29
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Enabling Send Stability will delay any transmissions until a no-motion condition exists.
P213 Transmit Selection (Selection)
Select desired print output (0 – 1 4). The transmission will be initiated by the selected print operation (P210) and / or the Remote Key selection
(P800).
Choice 0 Custom Transmit:
User-defined serial data string (see Custom Transmit Setup on page 43).
Choice 1 GSE Standard Transmit:
XXX.XX kg Gross <CR><LF>
XXX.XX kg Tare <CR><LF>
XXX.XX kg Net <CR><LF>
HH:MM:SS am MM/DD/YY <CR><LF>
Choice 2 Count:
HH:MM:SS am MM/DD/YY <CR><LF>
XXX QTY <CR/LF>
XX.X kg APW <CR><LF>
XXX.XX kg Gross <CR><LF>
XXX.XX kg Tare <CR><LF>
XXX.XX kg Net <CR><LF>
( NOTE: The time and date will only be printed in choice 1 and 2 if
P502 is enabled ).
Choice 3 (Condec Clone):
<STX> <POL> <DATA> <L/K> <G/N> <STAT> <CR> <LF>
Where:
<STX> is a single control code, decimal value of 2.
<DATA> is 8 characters, 1st character is either minus sign or a space, padded with leading spaces, with an embedded decimal point.
<L/K> is a single 'L' or 'K' character to indicate lb or kg units.
<G/N> is a single 'G' or 'N' character to indicate gross or net data.
<STAT> is an 'O' (overload/underload), 'M' (motion), or space otherwise.
<CR> is a single control code (carriage return), decimal value of 13.
<LF> is a single control code (line feed), decimal value of 10.
Choice 4:
<STX><SignedDATA><sp><lb/kg><sp><Gross/Net/Qty><STAT><CR>
30
C H A P T E R 3 : C O N F I G U R A T I O N
Choice 5:
<STX><Signed DATA><sp><lb/kg><STAT><CR>
Choice 6:
<STX><Signed DATA><sp><lb/kg><CR>
Choice 7:
<STX><Unsigned DATA><sp><CR>
Choice 8:
<STX><Signed
DATA><sp><lb/kg><sp><Gros/Net/Qty><STAT><SPS><CR>
Choice 9:
<STX><Signed DATA><sp><lb/kg><STAT><SPS><CR>
Choice 10:
<STX><Signed Displayed Weight><sp><lb/kg><SPS><CR>
Choice 11:
<STX><Unsigned Displayed Weight><SPS><CR>
Choice 12:
<STX><Unsigned DATA><sp><lb/kg><sp><Gross/Net/Qty><STAT><CR>
Use choice 12 to send to a 450/455/550 remote display that is set to text mode and a <CR> terminator.
Choice 13:
<STX><Unsigned DATA><sp><lb/kg><sp><Gross/Net/Qty><STAT>
<CR><LF>
Choice 14 (Simulates NCI 3835):
<LF>Signed DATA<CR><LF><STAT><CR><ETX>
Data Block Name
<STX>
<ETX>
<POL>
<Signed DATA>
Description
A single control code, decimal value of 2.
A single control code, decimal value of 3.
A <space> for positive data or a for negative data.
8 characters right justified, space padded, including a decimal point and polarity sign. Polarity is a ‘+’ or ‘–‘ to the immediate left of the most significant digit.
<Unsigned DATA> 8 characters right justified, space padded, including a decimal point.
<lb/kg> Two characters indicating pounds or kilograms.
<Gross/Net/QTY> Single word for gross weight, net weight or quantity.
<STAT> An 'O' (overload/underload), 'M' (motion), or <space> otherwise
Data Block Name Description
31
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
<SPS>
<CR>
<LF>
<sp>
See <SPS> Setpoint Status below.
A single control code, decimal value of 13.
A single control code, decimal value of 10.
ASCII Space, decimal value of 32.
<SPS> Setpoint Status
Transmitting the setpoint status will reflect the current state of all the setpoints, regardless of which setpoint operation is configured. The status can be read as a single ASCII numeric character (0-7), a Hex value (30h-
37h) or a binary bit comparison. Status is preceded by a <space> and an
“S”. The preceding data stream format is for fixed transmissions of <SPS> as specified above. This is not associated with the custom transmission of parameter P96.
SP 1
Off
On
Off
On
Off
On
Off
On
SP 2
Off
Off
On
On
Off
Off
On
On
SP3
Off
Off
Off
Off
On
On
On
On
ASCII
6
7
4
5
0
1
2
3
Hex
30h
31h
32h
33h
34h
35h
36h
37h
Bit Comparison
0011 0000
0011 0001
0011 0010
0011 0011
0011 0100
0011 0101
0011 0110
0011 0111
P250 RS-485 Multi-Drop Network (Toggle)
Enable / disable the RS-485 multi-drop network option. Requires that an
RS-485 option board be installed. This option allows up to 250 RS-485 devices to be networked together in either a half duplex or full duplex wiring scheme. See the RS-485 Multi-Drop Network Setup and Operation section beginning on page 79 for complete details on RS-485 setup and operation.
P251 Address (Key in)
Specifies the address of the controller for RS-485 multi-drop communications. Allowed choices are 0 (disabled) and 4 – 254.
P410 Euro (Toggle)
Enable OIML legal-for-trade restrictions (see Chapter 5 ).
P420 Display (Selection)
32
C H A P T E R 3 : C O N F I G U R A T I O N
Select display control option. Choose from On , Off or Auto . The auto setting helps conserve power for extended battery life. When the indicator display is off, the load cell(s) are still powered.
If P420 is set to Off or selection 0, you can turn on the display by holding down the [CLR] key upon power up. This does not set P420 to On ; it only temporarily turns on the large VFD display in order to allow you to see what you are entering.
Parameter
Setting
P420.00
P420.01
P420.02
Choice Description
Off
On
Auto
Shuts off the display.
Normal display operation.
Shuts off the display when weight has stabilized within
6 divisions for 5 minutes. Pressing [ON] or changing weight more than 6 divisions will re-enable the display.
NOTE: The display will turn back on if data is received via the RS-232 Port.
P423 Back Light (on/off)
Toggle the back light on a 350 LCD
P426 Low Battery Indication (Toggle)
Press [ENTER] to enable or disable this option. Low battery will be indicated continuously if this feature is enabled without the battery option installed. Otherwise, an annnunciator will be lit when the battery voltage is low.
P427 Battery Option Automatic Shutdown (Selection)
Select duration of time for auto shutdown. Choose from selections with the
[ENTER] key. Selections are off, 0.5, 1, 2, 3, 4, 5, 10, 15, 20, 25, 30, 35,
40, 45, and 60. Choices are in set in minutes.
P440 Legal For Trade Restrictions (Toggle)
Enable NTEP legal-for-trade restrictions. See Chapter 5 for legal-for-trade issues.
P502 Time/Date (toggle)
Enables or disables the time and date feature. If enabled the indicator will prompt the user to enter the correct date and time upon power up. Note: if disabled P503-P505 will not be accessible, however, their current settings will be retained for future use.
P503 Hours (toggle)
Determines the TIME format style, 12 hour or 24 hour. If in 12 hour mode the right most decimal point on the LED display will
33
3 5 0 D I G I T A L W E I G H T I N D I C A T O R become the PM indicator. Note: The time must be entered as military time. If the mode is set for 12 hour, the time will be converted to a 12 hour clock.
P504 Style (toggle)
Determines the DATE format style, U.S.A. or Int’l. If set for
U.S.A, the date will resemble 01/26/01. If set for international, the date will resemble 26/01/01.
P505 Time/Date Select (toggle)
Allows the time and date to be viewed with the [SELECT] key from the weigh mode. The weight will continue to be updated when viewing the time or date. The time will be formatted as defined by P503 and the date will be formatted as defined by P504
P800 Remote Key Operation (Selection)
Select function for Remote Key closure. Choose from None , Print , Tare or
Zero . If a setpoint is configured to use the remote key as an activation method, then the P800 setting is over-ridden. The Remote Key Operation section on page 49 details the remote key operation. See Remote Key
Connection on page 15 for remote key electrical connections.
P1000 Custom Transmit
A custom transmit is a user-defined string of data that can be sent to the serial port. Parameter P1000 is the beginning of the custom transmit table and must be enabled for transmit by selecting choice 0 at P213. Parameters use three bytes of memory; ASCII characters and control codes use one byte. See P60001 for available memory. The custom transmit cannot be viewed or altered from the indicator. A custom transmit must be entered via the serial port. See Custom Transmit Setup on page 43 for details on designing and loading a custom transmit.
P5010 Setpoint Annunciators (Toggle)
Enables or disables the setpoint annunciators to the left of the main 7segment display. Disabling the setpoint annunciators may be desired when the bargraph is enabled while using an LCD display. See Bargraph
(General) on page 58.
P5011 Setpoint Bargraph (Toggle)
34
C H A P T E R 3 : C O N F I G U R A T I O N
Enables or disables the bargraph display on the LCD version of the M350 display. This setup parameter only appears if an LCD display is installed.
See Bargraph (General) on page 58.
P5012 Setpoint Bargraph Low-Limit Percentage (Key in)
Controls the "bargraph low-limit percentage" value for determining the weighting of each segment of the bar graph. This only appears if an LCD display is installed. See Bargraph (General) on page 58.
P5100 Setpoint Operation (Selection)
Sets the desired Setpoint operation. Choose between None , ChecP , Fill ,
Batch , Discharge , Both , ChecA or Independent . See General Setpoint
Setup on page 53 for complete details on setpoint setup and operation.
35
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
A
NALOG
O
UTPUT
S
ETUP
Table 3-3: Analog Output Parameters
Parameter
Setting
P171.00
Displayed
Name
AnAlg
P172.00
P173.--
P174.--
P175.10
P176.01
AnPar
AnlFS
AnOff
AnRng
AnRst
Description
Enable analog option.
Parameter that analog signal corresponds to. Displayed corresponds to gross while viewing the gross weight and net otherwise.
Full scale value at which P172 selection yields an output of 10 volts. If set to 0, uses P110 setting.
Offset value which yields a 0 volt output.
Range Value (1-10) which specifies the max value of analog output – entered in terms of voltage. NOTE: This does not change the analog span. A 0-
10,000 lb. output set to 8 will stop increasing its analog signal at 8,000 lbs.
Reset state – Specifies analog signal level when 350 enters
Setup Mode.
P177.00
AType
Specifies output type: voltage or current.
Type/choices
(*=Default)
Disbl*, Enabl
Gross*, Net,
Displayed
Numeric Entry:
0* to ±1,000,000
Numeric Entry:
0* to ±1,000,000
Numeric entry:
0 to 10*
10 V (Max Output)
0 V (Min Output)
No Change*
0 –10 volts*,
0 -20mA,
4 -20mA
V out
=
(P172: Parm Value) - (P174: Zero Offset)
(P173: Full Scale Value) – (P174: Zero Offset)
* 10
The actual output signal is calculated as follows:
If the result is greater than the Max Range Value (P175), then the analog signal is limited to the Max Range Value.
36
C H A P T E R 3 : C O N F I G U R A T I O N
A
NALOG
O
UTPUT
C
ALIBRATION
i
This section requires firmware rev 010 or later.
Table 3-4: Analog Output Calibration Parameters
P
ARAMETER
S ETTING
D
ISPLAYED
N AME
D
ESCRIPTION
P61200
P61201
P61202
P61203
P61204
P61205
P61206
10oFF
10Gn
0oFF
0Gn
4oFF
4Gn
Srln
Value required to precisely output 0V in 0 – 10V output mode (i.e. offset).
Value required to precisely output 10V in 0 – 10V output mode (i.e. gain).
Value required to precisely output 0 mA in 0 – 20 mA output mode (i.e. offset).
Value required to precisely output 20 mA in 0 – 20mA output mode (i.e. gain).
Value required to precisely output 0 mA in 4 – 20 mA output mode (i.e. offset).
Value required to precisely output 20 mA in 4 – 20mA output mode (i.e. gain).
Analog option board serial number.
T
YPE
/
CHOICES
(*=D EFAULT )
Numeric Entry:
0 to 15,000
2,923*
Numeric Entry:
50,000 to 65,535
61,027*
Not adjustable:
0*
Numeric Entry:
50,000 to 65,535
54,555*
Numeric Entry:
0 to 15,000
10,910*
Numeric Entry:
50,000 to 65,535
54,555*
Numeric Entry:
0* - 4,294,967,295
The analog output calibration procedure establishes explicit zero and full scale values for each of the three analog output modes: 0 – 10V, 0 – 20 mA and 4- 20 mA. There are five adjustment values for the analog option, located at the information parameters P61200 through P61205, that allow the zero and full scale output of each mode to be adjusted to exact values.
This allows the analog option to be configured to match the needs of the system being connected to its outputs.
The calibration values for each of these modes has been determined at the factory. These values are provided on paper with each board to make calibrating the analog option a simple process. Each analog option board can be identified by its serial number, which is entered in the unit during the calibration process.
37
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
E NTERING A NALOG C ALIBRATION V ALUES
An example of the printout included with each analog option kit follows below:
100%s23640%i%e Access Setup Modes, Allowing
Changes
60100%s%e P60100. c1998-GSE-
60101%s%e P60101. 0350p01009
60102%s%e P60102. 06-30-2000
60200%s%e P60200. BrdSn573192
60201%s%e P60201. AuditTrail Euro
00001
60202%s%e P60202. InsSn329074
60203%s%e P60203. AuditTrail Cal.
00025
60204%s%e P60204. AuditTrail Setup
00050
61200%s2923%e P61200. 10off 2923
61201%s61027%e P61201. 10 Gn 61027
61202%s0%c P61202. 0 off 0
61203%s54555%e P61203. 0 Gn 54555
61204%s10910%e P61204. 4 off 10910
61205%s54555%e P61205. 4 Gn 54555
61206%s123456%e P61206. Srl n 123456
%z Exit Setup Mode
Analog calibration values can be entered into the M350 by keying in the data in the left-hand column, beginning at the line starting with “61200…”, replacing the “%s” character pairs with the [SELECT] key and “%e” with the [ENTER] key. The line with the “%c” is not adjustable and thus not enterable.
You can adjust the included factory recommended offset and gain values to precisely configure the system being connected to these outputs. Once the initial factory values have been entered, pressing the [ENTER] key will cause the count value to increase one count, and pressing the [PRINT] +
[UNITS] keys will decrement the count value by one count. All changes made are updated “live” to aid in calibrating a specific device to the analog option board output. Holding down the key(s) will repeat the increment/decrement action.
38
C H A P T E R 3 : C O N F I G U R A T I O N
A NALOG O UTPUT E XAMPLE
Analog
Parameter
Setting
P172.01
P173.--
P174.--
P175.--
Parameter
Description
Net Weight
Analog Full
Scale
Zero Offset
Max Range
Value
Example
Value
3.00 lb
20
-40
8
Comments
Current net weight.
Net weight value that would give maximum analog output.
Net weight value that would give minimum analog output.
Maximum analog output allowed
(entered in terms of voltage).
V out
=
3 - (-40)
20 - (-40)
* 10 =
43
60
* 10 = 7.166 v
Since 7.166 v is less than 8 v (per P175), the output signal is not restricted and would be 7.166 v.
If a current output is selected, the output is a milli-amp current where 0 volts corresponds to either 0 mA or 4 mA (as per P177) and 10 volts would translate to 20 mA. Values in between would be scaled proportionately:
I out
=
(20 mA - 4mA) * 7.166 v
+ 4 mA =
10 v
16 * 7.166
10
+ 4 = 15.465 mA
Analog signal resolution: the output is the result of a 16 bit conversion resulting in a resolution of 1 part in 65535 or 10 / 65535 = 0.00015 v.
C
USTOM
T
RANSMIT
S
ETUP
The serial output of the M350 can be configured for a custom application such as a remote display format, a customized computer program format, or a customized ticket format. The custom transmit must be designed in a computer-transmittable ASCII text file. The custom transmit can only be
39
3 5 0 D I G I T A L W E I G H T I N D I C A T O R loaded into the indicator through the serial port. P213 must be set to 0 to select the custom transmit format for transmission.
E LEMENTS OF A C USTOM T RANSMIT
Parameters, ASCII text, and control codes are the elements of a custom transmit.
Parameters
Certain parameters related to weight, quantity, setpoints and status can be sent out of the comm port. Gross Weight, Target 1 and Quantity are examples of printable parameters.
ASCII Text
ASCII text can be entered into a custom transmit to provide further detail of a transaction. “P”, “@” and “+” are examples of ASCII text.
Control Codes
You can custom transmit ASCII control codes to control a printing device.
<CR> (carriage return) and <FF> (form feed) are examples of control codes.
W RITING A CUSTOM TRANSMIT ASCII TEXT FILE
Any text editor may be used to construct a custom transmit (Notepad,
Wordpad, etc.) , but you must save the custom transmit as a text (.txt) file.
Instructions can also be sent keystroke by keystroke from a communications program. To do so, ignore the 350 display and enter the characters in the correct order. Figure 3-1 shows a custom transmit written in Wordpad.
A CCESSING S ETUP AND C LEARING E XISTING C USTOM
T RANSMIT
Every custom transmit file must start with:
1999%s%s%z%p%u%e
%c%e
This accesses the Setup Mode at the end of the existing transmit and then clears the transmit so that a new one may be entered.
40
C H A P T E R 3 : C O N F I G U R A T I O N
Access Setup and Clear Old Custom
Transmit
ASCII Text
ASCII Control Codes
Gross, Tare and Net Parameters
Exit Setup and Save Changes
Figure 3-1: Custom Transmit File
E NTERING ASCII T EXT
ASCII text is defined as printable characters, including alpha-numerics as well as punctuation and symbols. See Table 3-5 for a complete listing of
ASCII characters. ASCII text can be entered directly into a custom transmit with a %e (enter command). For example, Joe’s Fertilizer
Plant%e .
E
NTERING
ASCII C
ONTROL
C
ODES
Some ASCII characters are known as control codes, non-printable characters that instruct a printing device to perform certain functions. For example, a carriage return <CR> forces a printer to move the print head to the left-most position of the current line. A line feed <LF> forces the print head to move down one line. Enter control codes with a decimal point, a 3digit ASCII code, and a %e . For example, .013%e .
i
Most printers require a carriage return (.013) and/or a line feed (.010) to print preceding data and avoid leaving data in the printer buffer. See Table
3-5 for a list of ASCII codes.
41
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Table 3-5: ASCII / HEXADECIMAL CONVERSION CHART
HEX
CHAR
DEC
00
01
02
03
04
05
06
07
08
09
NUL 000 1A SUB 026 34 4 052 N 078 68 h 104
SOH 001 1B ESC 027 35 5 053 4F O 079 69 i 105
STX
002 1C FS 028 36 6 054 50 P 080 6A j 106
ETX
003 1D GS 029 37 7 055 51 Q 081 6B k 107
EOT
004 1E RS 030 38 8 056 52 R 082 6C l 108
ENQ 005 1F US 031 39 9 057 53 S 083 6D m 109
ACK 006 20 SP 032 3A : 058 54 T 084 6E n 110
BEL 007 21 !
033 3B ; 059 55 U 085 6F o 111
BS
008 22 “ 034 3C < 060 56 V 086 70 p 112
HT
009 23 # 035 3D = 061 57 W 087 71 q 113
0A
LF
010 24 $ 036 3E > 062 58 X 088 72 r 114
0B VT 011 25 % 037 3F ?
063 59 Y 089 73 s 115
0C FF 012 26 & 038 40 @ 064 5A Z 090 74 t 116
0D CR 013 27 ‘ 039 41 A 065 5B [ 091 75 u 117
0E
SO
014 28 ( 040 42 B 066 5C \ 092 76 v 118
0F
10
SI
015 29 ) 041 43 C 067 5D ] 093 77 w 119
DLE
016 2A * 042 44 D 068 5E ^ 094 78 x 120
11
12
13
14
DC1 017 2B + 043 45 E 069 5F _ 095 79 y 121
DC2 018 2C ‘ 044 46 F 070 60 ` 096 7A z 122
DC3 019 2D 045 47 G 071 61 a 097 7B { 123
DC4
020 2E .
046 48 H 072 62 b 098 7C | 124
15
16
17
18
19
NAK
021 2F / 047 49 I 073 63 c 099 7D } 125
SYN
022 30 0 048 4A J 074 64 d 100 7E ~ 126
ETB 023 31 1 049 4B K 075 65 e 101 7F DEL 127
CAN 024 32 2 050 4C L 076 66 f 102
EM 025 33 3 051 4D M 077 67 g 103
42
C H A P T E R 3 : C O N F I G U R A T I O N
P ARAMETER S ELECTION N UMBERS
The following sequence enters parameters into a custom transmit: %e , the parameter number, %e%e , a format code, and then %e%e with no intervening spaces.
%e 0 % e%e 0 %e%e
Initiates
Parameter
Entry
Parameter
Number
(Table 3-5)
Enters Parameter and Initiates
Format Entry
Format
Choice
(Table 3-6)
Enters
Format and
Ends Entry
Table 3-6: Custom Transmit Parameter Selection Numbers
Parameter Name
Gross Weight
Act 1
Tare Weight
Time / Date
Rst 1
Act 2
Rst 2
Act 3
Rst 3
Net Weight
Quantity
APW
APW * K
Targ1
Targ2
Targ3
(note: Indp. SP1)
(note: Indp. SP1)
(note: Indp. SP2)
(note: Indp. SP2)
(note: Indp. SP3)
(note: Indp. SP3)
Setpoint Status
Stability Status
Displayed Value
Parameter
Number
0
1
2
11
30
34
35
60
64
73
74
75
96
66
70
71
72
97
98
Sample Print Output
27.49 lb Gross
14.53 lb Net
12.96 lb Tare
10:01:01 am 01/26/01
58 Qty
0.25 lb APW
250 lb APW * K
400 lb Targ1
500 lb Targ2
1000 lb Targ3
600 lb Act 1
10 lb Rst 1
300 lb Act 2
10 lb Rst 2
100 lb Act 3
5 lb Rst 3
Setpt 0
Stat M
16.34 lb Gross
The default format code for all parameters is 0. This prints all numeric data with 8 characters, right justified, left spaces filled., the units (if applicable) and the parameter name. The format choices for all parameters (except
Stability Status and Setpoint Status) are shown in Table 3-7 .
43
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Table 3-7: Custom Transmit Format Codes
Choice
0
1
2
3
8
16
32
64
128
Sample Print Result
“ 27.49 lb Gross”
“000027.49 lb Gross”
“27.49 lb Gross”
“27.49 lb Gross”
“400. lb Net”
“+400 lb Net”
“336.52 Net”
“336.52 lb Net”
“336.52 lb”
Description
Fixed width (8 characters), right justified, left spaces filled.
Fixed width (8 characters), right justified, left zeroes filled.
Fixed width, left justified, right spaces filled.
Minimum possible width.
Print decimal point, even if data has no fractional portion.
Print “+” for positive numbers.
Do NOT print parameter units
(lb or kg).
Print value in “default” units (as opposed to current viewed units).
Do NOT print parameter name.
If a combination of format choices is required, add the choice numbers together and enter their sum as the format code. For example, to print the net weight without the name (Net) or units (lb) and to print it minimum width:
Choice
3
32
128
163
Sample Print Result
“336.52 lb Net”
“336.52 Net”
“336.52 lb”
Description
Minimum possible width.
Do NOT print parameter units.
Do NOT print parameter name.
Use the sum of the desired choice selections:
3 + 32 + 128 = 163
“336.52”
Minimum possible width.
Do NOT print parameter units.
Do NOT print parameter name.
E XITING S ETUP M ODE AND S AVING C HANGES
Each custom transmit file must end with:
%z%c%e%e
This exits the Setup Mode, bypasses the calibration procedure and saves the indicator configuration file.
44
C H A P T E R 3 : C O N F I G U R A T I O N
T
IME
/D
ATE
O
PERATION
The time and date feature is stored as volatile (time/date setting will be lost when the unit power is reset). The time/date parameter is available in the first two fixed transmits ( See Transmit Selection on page 34) and can be included in a custom transmit (See Custom
Transmit Setup on page 43) .
Upon power up and with P502 set to Enabled, the display will toggle Enter ~ Date~01.01.70
. If the date is acceptable, press the
[TARE] .
To enter the date from the Enter~date~01.01.70 prompt
1.
Press [PRINT] to toggle through the numbers to enter the month.
2
2.
Press [UNITS] twice to move the decimal point over to separate the month from the day. It is not necessary to enter a 0 before a single digit month. If it is a double-digit entry, press
[UNITS] once to move the cursor and then [PRINT] to scroll through the digits.
2.
3.
Press [PRINT] to toggle through the numbers to enter the day.
2.2
4.
Press [UNITS] twice to move the decimal point over to separate the day from the year. It is not necessary to enter a 0 before a single digit month. If it is a double-digit entry, press
[UNITS] once to move the cursor and then [PRINT] to scroll through the digits.
2.2.
5.
Press [PRINT] to toggle through the numbers to enter the year.
2.2.0
6.
Press [UNITS] once to move the cursor and then press
[PRINT] to scroll through the digits.
2.2.01
7.
Press [TARE] twice to accept the entry.
02.02.01
45
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
To enter the time from the Enter~tine~00.00.00 prompt
1.
Press [PRINT] to toggle through the numbers to enter the hour.
Hours must be entered as military time.
1
2.
Press [UNITS] once to move the cursor. Press [PRINT] to select the next digit.
16
3.
Press [UNITS] twice to move the decimal point over to separate the hour from the minutes. It is not necessary to enter a 0 before a single digit hour.
16.
4.
Press [PRINT] to toggle through the numbers to enter the minutes.
16.3
5.
Press [UNITS] once to move the cursor. Press [PRINT] to select the next digit.
16.32
6.
Press [UNITS] twice to move the decimal point over to separate the minutes from the seconds.
16.32.
7.
Press [PRINT] to toggle through the numbers to enter the seconds. The seconds do not have to be entered. Press
[TARE] to bypass entering the seconds.
16.32.4
8.
Press [UNITS] once to move the cursor. Press [PRINT] to select the next digit.
16.32.41
9.
Press [TARE] twice to accept the time entry. The date and time are now saved until power to the indicator is lost. The display will be returned to the weigh mode.
0.00
46
C H A P T E R 3 : C O N F I G U R A T I O N
R
EMOTE
K
EY
O
PERATION
The M350 has four selectable remote key operations to choose from: Print ,
Tare , Zero and Setpoint . Only one of these operations may be assigned to the remote key input. Table 3-8 describes the available remote key operations. See Remote Key Connection on page 15 for information on connecting a remote key input device.
Table 3-8: Remote Key Operations
Remote Key
Selection
P800.00
P800.01
P800.02
P800.03
Function
None
Tare
Zero
Description
Remote key disabled.
Initiates print function. Print restrictions (P200 –
P212) will be adhered to.
Initiates tare function. Tare restrictions (P161 -
P169) will be adhered to.
Initiates zero function. Zero restrictions (P118) will be adhered to.
i
Tare, Zero and Print functions will be delayed according to the stability setting (P114). If a setpoint operation is configured to use the remote key as an activation method, the P800 setting is over-ridden.
R
EMOTE
S
ERIAL
O
PERATION
Table 3-10: Remote Serial Operation
Command ASCII
Print %p
Select
Tare
Units
Zero
Enter
%s
%t
%u
%z
%e
HEX
F0h
F3h
F4h
F5h
FAh
E5h
Description
Initiates print function. Print restrictions
(P200 – P212) will be adhered to.
Performs a parameter or mode select operation.
Initiates tare function. Tare restrictions
(P161 - P169) will be adhered to.
Toggles between displayed units of measure.
Initiates zero function. Zero restrictions
(P118) will be adhered to.
Enters preceding data into selected register. Also toggles through selections in Setup Mode.
47
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Command
Piece Wt.
Entry
Zero
ASCII
%9
W<CR> or
P<CR>
Z<CR>
HEX
B9h
57h, 0Dh
5Ah, 0Dh
Description
Allows a piece weight to be entered serially. For example, 0.10%9 will enter a piece weight of 0.10.
Initiates print function. Print restrictions
(P200-P212) will be adhered to.
Requires both hex values, 57h followed by 0Dh.
Initiates zero function. Zero restrictions
(118) will be adhered to. Requires both hex values, 5Ah followed by 0Dh.
<CR> is a carriage return, decimal value 013, hex value 0Dh.
D ISPLAY C APTURE U TILITY
The Display Capture Utility sends the current display information out of the comm port when the extended ASCII character represented by decimal
149 (hex: 95h) is received through the comm port. Entering a decimal 149 from a computer keyboard can be accomplished by turning on the Num
Lock and holding down the ALT key while typing the desired decimal number on the keyboard keypad (for example, <Alt>149).
i
The Display Capture Utility must have NTEP disabled in order to function.
E XAMPLE #1
The scale is in the weigh mode with the gross weight displayed (for example, 15.00).
Input: The extended ASCII character represented by decimal 149 (hex:
95h) is received through the comm port.
Output: “15.00 lb Gross ” is sent out the com port.
E
XAMPLE
#2
The scale is in setup at P110 Full Scale.
Input: The extended ASCII character represented by decimal 149 (hex:
95h) is received through the comm port.
Output: “P110 F.S. 100.00 ” is sent out the comm port.
48
C H A P T E R 3 : C O N F I G U R A T I O N
G
ENERAL
S
ETPOINT
S
ETUP
The M350 has several pre-programmed scale setpoint applications available at P5100. Various related setpoint parameters may appear according to which of the standard programs is chosen. Table 3-11 describes the available setpoint operations.
Table 3-11: Setpoint Operations
Setpoint
Selection
P5100.00
Function
None
P5100.01
P5100.02
P5100.03
P5100.04
P5100.05
ChecP
Fill
Batch
Dschg
Both
Description
Setpoints disabled.
Percentage check-weighing. Over/Under tolerances are based on a percentage of the target weight.
Single Ingredient Fill (Single or Dual-
Speed). Allows the use of pre-acts for dribble feed and compensation for freefall material. Includes a selectable ‘learn’ mode.
Batch up to three ingredients. Allows for the use of pre-acts to compensate for free-fall material. Includes selectable
‘learn’ modes.
Single Ingredient Discharge (Single or
Dual-Speed). Allows the use of pre-acts for dribble feed and compensation for free-fall material. Includes a selectable
‘learn’ mode.
Single Ingredient Fill and Discharge. Fill large holding vessels and discharge material in pre-determined amounts.
Allows for the use of pre-acts to compensate for free-fall material.
Includes a selectable ‘learn’ mode.
P5100.06
P5100.07
ChecA
Indep
Absolute check-weighing. Over/Under tolerances are based on discrete values.
Independent Setpoints. Activation based on specific target values. Includes selectable reset conditions.
Page
Ref
61
62
64
68
70
73
75
Each program utilizes the three annunciators located to the left of the main display to give a visual status of the setpoint. A setpoint option board may be installed to allow control of an external device (see Setpoint Card
Connections on page 108).
49
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
A CTIVATION M ETHODS (G ENERAL )
Setpoint activation for Fill, Batch, Discharge, and Both can be initiated in one of three ways: Tare, Remote or Auto. Check-weigh operations have no start function. Independent setpoint operations are limited to Above or
Below activation. The M350 setpoint option board may be connected inseries with a larger automated control system or a manually activated switching device. A foot switch, a two-hand safety station, or other permissive-start devices may be used for safety or system compatibility.
Activation
Method
Tare
Operation
Description
[TARE] activates the setpoint. It waits for a no-motion condition, then tares scale to net zero. The appropriate setpoint is then activated.
Remote
Key
Auto-Start
The [REMOTE KEY] closure activates the setpoint. The remote key function (assigned at P800) is over-ridden .
Automatically activates the setpoint. It waits for a no-motion condition, then adds the target to the current displayed weight to achieve a relative cutoff value.
P RE ACTS (G ENERAL )
Pre-Acts are control actions prior to reaching a desired target value.
Necessary to prevent over-filling due to product flow rate, relay and valve response time and product suspension, Pre-Acts and other system variables affect how much more product reaches the weighing device after the indicator has deactivated a setpoint.
Pre-act 1
Used in dual-speed applications, pre-act 1 specifies when the M350 should switch from fast-fill to slow-fill, allowing the system to perform the bulk of a filling operation as quickly as possible before switching to a more manageable dribble mode for final cutoff. When using a single-speed device, set pre-act 1 to 0.
Pre-act 2
Specifies the weight where the final cutoff should occur, enabling the
M350 to compensate for a dispensing control’s closure time and account for free-fall material. Free-fall is the amount of product that has passed the point of the dispensing control yet not yet reached the weighing device.
Pre-act values are entered in terms of the amount of product that would over-fill or ‘how early’ to close the control device. For instance, after
50
C H A P T E R 3 : C O N F I G U R A T I O N repeated tests, a system consistently over-fills by .5 lbs. This is the value that should be entered as the pre-act. The M350 would then deactivate the setpoint .5 lbs. less than the desired final target value.
Parameter Setting
Target = 400 lbs.
Pre-Act 1 = 28
Pre-Act 2 = .5
Actual Cutoff
Value
Comments
400 – 28 = 372
Desired final weight.
Switch to slow feed at 372 lbs.
400 – 0.5 = 399.5
Final fill valve closes at 399.5 lbs.
L EARN F EATURE (G ENERAL )
The M350 can ‘learn’ optimal pre-act values. When enabled, the learn feature will automatically adjust the final cutoff value based on an analysis of the five previous fills, helping achieve a final target by compensating for product viscosity, changes in plant air pressures, sticky valves, etc. For each cycle, the prior five final weights are analyzed and a new pre-act value is calculated.
P
AUSE
F
EATURE
(G
ENERAL
)
The M350 can pause setpoint operations. This is useful as a safety device, for mid-cycle operator breaks, mechanical adjustments, etc.
When invoked, Pause deactivates all setpoints. The display will show:
Tare= ~ Abort . Pressing [TARE] will abort the current cycle; any other keypress will resume the cycle. The Pause feature has four settings:
Pause
Setting
Disabled
Keypad
Remote Key
Both
Action
M350 Key Press
Remote Key Contact Closure
M350 Key Press OR Remote
Key Contact Closure
Result
Pause feature disabled.
Current cycle paused – all setpoints deactivated.
Current cycle paused – all setpoints deactivated.
Current cycle paused – all setpoints deactivated.
51
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
C HANGING T ARGETS FROM THE W EIGH M ODE (G ENERAL )
When a setpoint operation is configured from the Setup Mode, certain parameters are made available in the Weigh Mode. Pressing [SELECT] cycles through available modes (Gross, Net, Quantity, Targ 1, etc.).
When viewing a setpoint-related parameter from the Weigh Mode, [
8
] takes on a special function. Data keyed in prior to [ 8 ] will be displayed as the new setpoint parameter value. Pressing [ 8 ] alone will advance to the first subset for the current setpoint parameter. Pre-acts and tolerances are subsets of their respective target values.
A negative target value many be entered for the independent setpoints only. To enter the negative sign press [ p ] then [ p ] + [ u ]. A negative sign will be displayed. Press [UNITS] to continue with the entry
Programs that involve a discharge cycle are loss-in-weight type applications. Any target or pre-act values for these programs should be entered as positive numbers. The M350 will automatically interpret these values as negative.
E XAMPLE (G ENERAL )
The target for the fill setpoint operation is Targ 1. This is a setpoint-related parameter and automatically becomes an available mode when Fill is configured in the setpoint setup. Pre-act 1 and pre-act 2 are subsets of Targ
1. The following procedure illustrates how to change a target from 250 lbs to 400 lbs., keep pre-act 1 at 28 lbs. and change pre-act 2 from 1.5 lbs to .5
lbs.
To change targets from the Weigh Mode:
1.
Press [SELECT] to view the current net weight.
0.00
2.
Press [SELECT] to view the current fill target.
Targ1 ~ 250
3.
Press 400 [
8
] to set a new fill target of 400 lbs.
Targ1 ~ 400
4.
Press [
8
] to select the Pre-Act 1 (subset) value of 28 lbs.
PA 1 ~ 28
5.
Press [
8
] to select the Pre-Act 2 (subset) value of 1.5 lbs.
PA 2 ~ 1.5
6.
Press .5 [
8
] to select a new Pre-Act 2 value of .5 lbs.
52
C H A P T E R 3 : C O N F I G U R A T I O N
PA 2 ~ .5
7.
Press [SELECT] to display the current Gross Weight.
15.12
B ARGRAPH (G ENERAL )
A bargraph display is available for the ChecP, Fill, Batch, Dschg, Both and
ChecA setpoint modes of operation. To enable the bargraph, refer to parameter P5011 (SPbar) in the Parameter Map section beginning on page
24. To weight each segment of the bargraph refer to parameter P5012
(bArPc) in the Parameter Map section beginning on page 24.
S
CALING FOR
“
BARS
” (
BARGRAPH ARROWS
)
If the first bar turns off at the specified percentage (set at P5012) of the low limit, and the last bar turns off at the low limit, then the difference will be divided by 8 to determine the number of lbs per bar. At less than 5 grads, the entire graph is off.
Example#1: “ChecP” (refer to Figure 3-2 )
Lower Limit is set at 50lbs.
P5012 is set for 80%
( Bar weight = 50 – 40 = 10 )
(10/8 = 1.25 lbs )
NOTE: Right-side bars will have the same scaling (lb per bar) as the leftside bars. They are represented as a mirror image of each other.
Bars ON Weight Range (Lower Tolerance Limit)
9 < 40
8 40.00 to 41.25
7 41.25 to 42.50
6 42.50 to 43.75
5 43.75 to 45.00
4 45.00 to 46.25
3 46.25 to 47.50
2 47.50 to 48.75
1 48.75 to 50.00
53
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Figure 3-2: Example #1 Bargraph Segments (Weighted Value)
Example#2: : “ChecP” (refer to Figure 3-3 )
Lower Limit is set at 50lbs.
P5012 is set for 20%
( Bar weight = 50 – 10 = 40 )
(40/8 = 5 lbs )
NOTE: Right-side bars will have the same scaling (lb per bar) as the leftside bars. They are represented as a mirror image of each other.
Bars ON Weight Range (Lower Tolerance Limit)
9 < 10
8 10.00 to 15.00
7 15.00 to 20.00
6 20.00 to 25.00
5 25.00 to 30.00
4 30.00 to 35.00
3 35.00 to 40.00
2 40.00 to 45.00
1 45.00 to 50.00
Figure 3-3: Example #2 Bargraph Segments (Weighted Value)
54
C H A P T E R 3 : C O N F I G U R A T I O N
Figure 3-4: Examples of the Bargraph "Below, Within and Above Tolerance"
NOTE: (bargraph for filling and emptying modes)
For modes other than check-weighing, the bars will be on only while the setpoints are on and during the "Done" at the end of a fill.
The bar weights will be calculated similar to the check-weigh modes of operation stated above for filling, batching, etc., except that the percentage will be based on the actual target, rather than the low-limit value (see the equation below). The operation for emptying (and the emptying portion of
'both') will be the same except that the weight will be going negative while the left side bars are turning off.
Target – [ (% set at P5012 ) • Target ]
Bargraph segment weight = 100
8.5
55
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P
ERCENTAGE
C
HECK
-W
EIGHING
This feature is commonly used in check-weigh applications. After a target weight is entered, upper and lower tolerances are entered as a percentage of the target. Over and under tolerance values are automatically calculated according to the percentages entered. The desired target may be based on gross weight, net weight or quantity (if counting is enabled).
Table 3-12: Setpoint Setup (Percentage Check-Weighing)
Setpoint
Selection
P5100.1
P5101.--
P5102.--
P5103.--
P5104.0
Function
ChecP
Targ1
PctLo
PctHi
Based
Description
Check-weigh by percentage.
Absolute target value.
Low acceptance percentage.
High acceptance percentage.
Select from Net , Gross or Quantity .
See Key-In Parameters on page 23 for instructions on using the front panel keys for entering data.
S ETPOINT A CTIVATION (P ERCENTAGE C HECK -W EIGHING )
In order for the annunciators or setpoints to activate, the displayed value must be at least five graduations above zero. A setpoint option board may be installed to allow the M350 to directly control lights, buzzers, dropgates, or reject devices (see Setpoint Card Connections on page 108).
i
Although the setpoint annunciators are not motion-inhibited, the setpoint relay outputs will not activate until a no-motion condition exists.
Check-Weigh
Status
OVER
GOOD
UNDER
Annunciator
Status
SP 1
Illuminated
SP 2
Illuminated
SP 3
Illuminated
Annunciator
Color (LED)
Red
Green
Yellow
Setpoint Status (Requires
Setpoint Option Board)
Relay 1 Contacts Closed,
Relay 2 and 3 Contacts Open.
Relay 2 Contacts Closed,
Relay 1 and 3 Contacts Open.
Relay 3 Contacts Closed,
Relay 1 and 2 Contacts Open.
i
The Pre-Acts, Learn Mode, and Pause Feature options are not applicable to check-weigh operation.
56
C H A P T E R 3 : C O N F I G U R A T I O N
C HANGING T ARGETS FROM THE W EIGH M ODE (P ERCENTAGE
C HECK -W EIGHING )
When Check-Weigh by Percentage is configured in the setpoint setup, the
Targ 1 value automatically becomes an available mode for the [SELECT] key. Keying in a value before pressing [
8
] changes Targ 1. Targ 1 is entered as an absolute value. Pressing [ 8 ] alone gives access to the subsets. PctLo and PctHi are the subsets for Targ 1. PctLo and PctHi are entered as percentage values. See Changing Targets from the Weigh Mode
(General) on page 57 for detailed instructions on changing target values from the Weigh Mode.
E XAMPLE (P ERCENTAGE C HECK -W EIGHING )
With a system set up to check-weigh ice cream containers, the following settings might be used to guarantee container weights from 1.98 to 2.04
lbs.:
Acceptable Checkweigh Values
Parameter Setting
Target = 2.00
Percent Lo Value = 1
Percent Hi Value = 2
2.00 * .01 = 0.02
2.00 * .02 = 0.04
Comments
Desired container weight.
Low acceptable range =
1.98 to 2.00.
High acceptable range =
2.00 to 2.04.
F
ILL
The fill program is used for single-speed or dual-speed filling operations.
The dual-speed fill operation allows for both a fast and a slow fill mode.
During a fast-fill, setpoints 1 and 2 are activated. During a slow-fill or single-speed fill, only setpoint 1 is activated.
Table 3-13: Setpoint Setup (Fill)
Setpoint Selection
P5100.1
P5101.--
P5104.0
Function
Fill
Targ1
Based
P5105.--
P5107.0
P5109.--
P5110.1
PA 1
Start 1
PA 2
Learn 2
Description
Select Fill Setpoint Operation
Final Fill Target Value
Select between Net or Quantity
Pre-Act 1 Value (Fast-to-Slow
Value; 0 for Single-Speed)
Setpoint Activation Method
Pre-Act 2 Value (Final Cutoff)
Learn Feature for Pre-Act 2
57
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Setpoint Selection
P5114.1
P5115.1
P5116.1
Function
PrAc 1
PrAc 2
Pause
Description
Pre-Act 1 Available as Subset in
Weigh Mode
Pre-Act 2 Available as Subset in
Weigh Mode
Keypad Press invokes Pause
See Key-In Parameters on page 23 for instructions on using front panel keys for entering data.
A CTIVATION M ETHOD (F ILL )
The fill begins with the selected activation method. The deactivation of the setpoints is automatic. The desired target may be based on net or quantity
(if counting is enabled). See Activation Methods (General) on page 54 for activation details.
Fill Status
Fast Fill
Dribble Fill (or Single-
Speed Fill)
Fill Done or Pause
Annunciator
Status
SP 1 & SP 2
Illuminated
Setpoint Status (Requires Setpoint
Option Board)
Relay 1 and Relay 2 Contacts
Closed
SP 1 Illuminated Relay 1 Contacts Closed
SP 1 & SP 2 Off Relay 1 and Relay 2 Contacts Open
P RE ACTS (F ILL )
Pre-act 1 is used for dual-speed filling. Pre-act 1 specifies when the M350 should switch from fast-fill to slow-fill. When using a single-speed device, pre-act 1 should be set to 0 from the Setup Mode. P5114 should also be disabled to prevent pre-act 1 from appearing as a subset of target in the
Weigh Mode.
Pre-act 2 specifies the target where the final cutoff should occur, regardless of a single-speed or dual-speed operation.
i
Pre-act 1 controls setpoint 2. Pre-act 2 controls setpoint 1.
See Pre-acts (General) on page 54 for details on the operational functions of pre-acts .
58
C H A P T E R 3 : C O N F I G U R A T I O N
L EARN F EATURE (F ILL )
Pre-act 2 has a learn feature available which allows the indicator to adjust the final cutoff based on changing environmental conditions. See Learn
Feature (General) on page 55 for ‘learn’ feature details.
P AUSE F EATURE (F ILL )
The standard pause feature (keypress, remote key closure or both) is available for the fill operation. See Pause Feature (General) on page 55 for ‘pause’ function details.
C
HANGING
T
ARGETS FROM THE
W
EIGH
M
ODE
(F
ILL
)
When Fill is configured in the setpoint setup, Targ 1 automatically becomes an available mode for the [SELECT] key. An entry followed by [
8 ] changes targ 1. Pressing [ 8 ] alone allows access to the subsets. PA 1 and PA 2 are the Fill subsets. The pre-acts can be deleted as subsets by choosing Disabled at P5114 and P5115. See Changing Targets from the
Weigh Mode (General) on page 57 for detailed instructions on changing target values from the Weigh Mode.
E XAMPLE (F ILL )
With a system set up to fill 55-gallon drums with motor oil, the following settings might be used to achieve an accurate final fill weight of 400 lbs.:
Parameter Setting Actual Cutoff Value
Targ 1 = 400
Pre-act 1 = 28
Pre-act 2 = .5
400 – 28 = 372.0
400 – 0.5 = 399.5
Comments
Desired final weight.
Switch to dribble feed at 372.
Final fill valve closes at 399.5.
B
ATCH
The standard batch program is used for batching up to three separate items.
Ingredients 1 through 3 use setpoints and pre-acts 1 through 3 respectively.
Ingredients are batched one at a time.
59
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Table 3-14: Setpoint Setup (Batch)
Setpoint Selection
P5100.3
P5101.--
P5104.0
P5105.--
Function
Batch
Targ1
Based
PA 1
P5106.1
P5107.0
P5108.--
P5109.--
Learn 1
Start 1
Targ 2
PA 2
P5110.1
P5111.0
P5116.1
P5117.--
P5118.--
P5119.1
P5120.0
Learn 2
Start 2
Pause
Targ 3
PrAc 3
Learn 3
Start 3
Description
2 or 3 ingredient batching.
Ingredient 1 target value.
Select from net or count ( quantity) .
Pre-act 1 value (final cutoff for ingredient 1).
Learn feature for pre-act 1 enabled.
Setpoint 1 activation method.
Ingredient 2 target value.
Pre-act 2 value (final cutoff for ingredient 2).
Learn feature for pre-act 2 enabled.
Setpoint 2 activation method.
Keypad press invokes pause mode.
Ingredient 3 target value.
Pre-act 3 value (final cutoff for ingredient 3).
Learn feature for pre-act 3 enabled.
Setpoint 3 activation method.
See Key-In Parameters on page 23 for instructions on using front panel keys for entering data.
A CTIVATION M ETHOD (B ATCH )
The filling of each ingredient begins when one of three selectable start functions occur. Each ingredient may have its own start function. The deactivation of the setpoint is automatic. The desired targets may be based on net weight or quantity (if counting is enabled). All ingredients must be based on the same parameter. See Activation Methods (General) on page
54 for details on activation methods.
Batch
Status
Fill 1
Fill 2
Fill 3
Annunciator
Status
SP 1
Illuminated
SP 2
Illuminated
SP 3
Illuminated
Setpoint Status (Requires Setpoint Option
Board)
Relay 1 Contacts Closed,
Relay 2 and 3 Contacts Open
Relay 2 Contacts Closed,
Relay 1 and3 Contacts Open
Relay 3 Contacts Closed,
Relay 1 and 2 Contacts Open
60
C H A P T E R 3 : C O N F I G U R A T I O N
P RE ACTS (B ATCH )
Pre-acts 1, 2 and 3 specify the final cutoff for each respective ingredient.
See Per-acts (General) on page 54 for pre-act details.
L EARN F EATURE (B ATCH )
Each batch pre-act has the learn feature available which allows the indicator to automatically adjust the final cutoff based on changing environmental conditions. See Learn Feature (General) on page 55 for
‘learn’ feature details.
P
AUSE
F
EATURE
(B
ATCH
)
The standard pause feature (keypress, remote key closure or both) is available for the batch operation. See Pause Feature (General) on page 55 for ‘pause’ details.
C HANGING T ARGETS FROM THE W EIGH M ODE (B ATCH )
When Batch is configured in the setpoint setup, Targ 1, 2 and 3 automatically become available modes for the [SELECT] key. A keyed in entry followed by [ 8 ] changes the value of current target. Pressing [ 8 ] alone allows access to the subsets of the currently viewed target. PA 1, 2 and 3 are the respective subsets for Targ 1, 2 and 3. See Changing Targets from the Weigh Mode (General) on page 57 for detailed instructions on changing target values from the Weigh Mode.
i
Pre-acts 1 and 2 are always available as subsets of their respective targets from the Weigh Mode.
E XAMPLE (B ATCH )
With a system set up a system to make a 50,000 lb batch with water
(30,000 lbs.), corn syrup (15,000 lbs.) and caramel color (5,000 lbs.), ingredient 1 should start with [TARE] and subsequent ingredients should auto-start.
61
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Parameter Setting
Target 1 = 30,000
Based = Net
Pre-Act 1 = 100
Learn 1 = Enabled
Start 1 = Tare
Target 2 = 15,000
Pre-Act 2 = 236
Learn 2 = Enabled
Start 2 = Auto
Target 3 = 5,000
Pre-Act 3 = 142
Learn 3 = Enabled
Start 3 = Auto
Pause = Keypad
Actual Cutoff Value
30,000 – 100 = 29,900
15,000 – 236 = 14,764
Calculated cutoff value for corn syrup is added to current displayed weight
5,000 – 142 = 4,858
Calculated cutoff value for carmel coloring is added to current displayed weight
Comments
Desired water weight.
Targets are compared to net weight.
Water valve closes at 29,900 lbs.
Free-fall will bring weight to
30,000.
Analyze previous five fills and auto-adjust pre-act 1.
Start water with [TARE] .
Desired corn syrup weight.
Corn syrup valve closes at
14,764 lbs. Free-fall will bring weight to 15,000.
Analyze previous five fills and auto-adjust pre-act 2.
Start corn syrup when water is done and motion has stopped.
Desired caramel coloring weight.
Carmel coloring valve closes at
4,858. Free-fall will bring weight to 5,000.
Analyze previous five fills and auto-adjust pre-act 3.
Start caramel coloring when corn syrup is done and motion has ceased.
Keypress will pause batch operation.
62
C H A P T E R 3 : C O N F I G U R A T I O N
D
ISCHARGE
The discharge program is designed for single-speed or dual-speed dispensing of product from a larger weigh vessel. Discharge is a loss-inweight application similar in operation to the fill program. When a discharge is initiated, the scale automatically tares and comes to a net zero weight. The appropriate setpoints are activated and material is discharged until the decreasing net weight reaches the desired target value.
Table 3-15: Setpoint Setup (Discharge)
Setpoint
Selection
P5100.1
P5101.--
P5104.0
P5105.--
P5107.0
P5109.--
P5110.1
P5114.1
P5115.1
P5116.1
Function
Discharge
Targ1
Based
PA 1
Start 1
PA 2
Learn 2
PrAc 1
PrAc 2
Pause
Description
Select discharge setpoint operation.
Final dispensed target value.
Select between net or count (quantity)
Pre-act 1 value (fast-to-slow value; 0 for single-speed).
Setpoint activation method.
Pre-act 2 value (final cutoff).
Learn feature for pre-act 2.
Pre-act 1 available as subset in Weigh Mode.
Pre-act 2 available as subset in Weigh Mode.
Keypress invokes pause.
See Key-In Parameters on page 23 for instructions on using front panel keys for entering data.
A CTIVATION M ETHOD (D ISCHARGE )
The dispensing activation is limited to [TARE] or a remote key input. The deactivation of the setpoints is automatic. The desired target may be based on net or quantity (if counting is enabled). See Activation Methods
(General) on page 54 for activation details.
Discharge Status
Fast Discharge
Slow (or Single-
Speed) Discharge
Fill Done or Pause
Annunciator
Status
SP 1 & SP 2
Illuminated
Setpoint Status (Requires Setpoint
Option Board)
Relay 1 and 2 Contacts Closed
SP 1 Illuminated Relay 1 Contacts Closed
SP 1 & 2 Off Relay 1 and 2 Contacts Open
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P RE ACTS (D ISCHARGE )
Pre-act 1 is used for dual-speed dispensing. Pre-act 1 specifies when the system should switch from fast-discharge to slow-discharge. When using a single-speed device, pre-act 1 should be set to 0 from the Setup Mode.
P5114 should also be disabled to prevent pre-act 1 from appearing as a subset of the target in the Weigh Mode. Pre-act 2 specifies the point where the final cutoff should occur, regardless of a single-speed or dual-speed operation. See Pre-acts (General) on page 54 for details on the operational functions of pre-acts.
i
Pre-act 1 controls setpoint 2. Pre-act 2 controls setpoint 1.
L EARN F EATURE (D ISCHARGE )
Pre-act 2 has the learn feature available which allows the indicator to automatically adjust the final cutoff based on changing environmental conditions. See Learn Feature (General) on page 55 for learn feature details.
P
AUSE
F
EATURE
(D
ISCHARGE
)
The standard pause feature (keypress, remote key closure or both) is available for the discharge operation. See Pause Feature (General) on page
55 for pause function details.
T ARGET C HANGES FROM THE W EIGH M ODE (D ISCHARGE )
When Discharge is configured in the setpoint setup, Targ 1 automatically becomes an available mode for the [SELECT] key. An entry followed by
[ 8 ] changes Targ 1. Pressing [ 8 ] alone allows access to the subsets. PA
1 and PA 2 are the subsets for Targ 1. The pre-acts can be deleted as subsets by choosing ‘disabled’ at P5114 and P5115. See Changing Targets from the Weigh Mode (General) on page 57 for instructions on changing target values from the Weigh Mode.
i
Target and pre-act values are entered as positive values.
If the total amount of product in the weigh vessel is less than the entered target, the indicator will prompt Tare ~ =Cont . Pressing [TARE] will dispense whatever is left in the vessel. Pressing any other key will abort the discharge cycle to allow for refilling the vessel.
64
C H A P T E R 3 : C O N F I G U R A T I O N
E XAMPLE (D ISCHARGE )
With a system set up to dispense ball bearings from a 50,000 lb weigh-bin and the fast-feed requiring an early cutoff to slow-feed, the following settings might be used to achieve accurate dispensing of 1000 bearings:
Parameter Setting Actual Cutoff Value Comments
Targ 1 = 1000
Based = Qty
PA 1 = 200
Start = [TARE]
PA 2 = 15
Learn 2 = Enabled
PrAc 1 = Enabled
PrAc 2 = Disabled
Pause – Remote
0 – 1000 =
(-1000)
1000 – 200 = 800
0 – 800 = (-800)
1000 – 15 = 985
0 – 985 = (-985)
Desired quantity (decreasing value from a net zero: enter as a positive value).
Targets are compared to quantity
(P170 Enabled).
Switch to slow feed at –800 bearings (decreasing value from a net zero: enter as a positive value).
Start discharge with [TARE] .
Final gate begins closing at 985 bearings. Delayed closure brings final quantity to 1000 (decreasing value from a net zero: enter as a positive value).
Analyze five previous operations and auto-adjust Pre-Act 2.
Pre-act 1 available as subset of
Targ 1 in Weigh Mode.
Pre-act 2 NOT available as subset of Targ 1 in Weigh Mode (autoadjust only).
Remote key closure invokes
Pause.
B
OTH
The ‘Both’ program combines a fill operation with a discharge operation.
This automates a single-speed vessel filling operation with a single-speed multiple dispensing function. Setpoint 1 is used for filling the vessel and
Setpoint 2 is used for product discharge. The ‘both’ program uses values for two targets and two pre-acts. Both targets must be based alike (net or quantity, quantity if count is selected).
65
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Table 3-16: Setpoint Setup (Both)
Setpoint Selection
P5100.5
P5101.--
P5104.0
P5105.--
P5106.1
P5107.0
P5108.--
P5109.--
P5110.1
P5111.0
P5116.1
Function
Both
Targ1
Based
PA 1
Learn 1
Start 1
Targ 2
PA 2
Learn 2
Start 2
Pause
Description
Select both setpoint operation.
Vessel fill target value.
Select from Net or Count ( Quantity) .
Pre-act 1 value for vessel fill.
Learn feature for pre-act 1.
Setpoint 1 activation method.
Vessel discharge target value.
Pre-act 2 value for vessel discharge.
Learn feature for pre-act 2.
Setpoint 2 activation method.
Keypad press invokes pause.
See Key-In Parameters on page 23 for instructions on using front panel keys for entering data.
A CTIVATION M ETHOD (B OTH )
The fill and discharge functions begin with their selected activation methods. The deactivation of the setpoints is automatic. The desired target may be based on net or quantity (if counting is enabled). See Activation
Methods (General) on page 54 for activation details.
Both Status
Vessel Fill
Vessel Discharge
Fill Done or Pause
Annunciator
Status
Setpoint Status (Requires Setpoint
Option Board)
SP 1 Illuminated Relay 1 Contacts Closed
SP 2 Illuminated Relay 2 Contacts Closed
SP 1 & SP 2 Off Relay 1 and Relay 2 Contacts Open
P RE ACTS (B OTH )
Pre-act 1 is used for vessel filling. Pre-act 1 specifies the point where the final cutoff for the fill should occur. Pre-act 2 specifies the point where the final cutoff for the material discharge should occur. See Pre-acts
(General) on page 54 for details on the operational functions of pre-acts.
i
Pre-act 1 controls setpoint 1. Pre-act 2 controls setpoint 2.
66
C H A P T E R 3 : C O N F I G U R A T I O N
L EARN F EATURE (B OTH )
Both pre-act 1 and 2 have the learn feature available which allows the indicator to automatically adjust the final cutoff based on changing environmental conditions. See Learn Feature (General) on page 55 for
‘learn’ feature details.
P AUSE F EATURE (B OTH )
The standard pause feature (keypress, remote key closure or both) is available for the Both operation. See Pause Feature (General) on page 55 for ‘pause’ functions details.
T
ARGET
C
HANGES FROM THE
W
EIGH
M
ODE
(B
OTH
)
When Both is configured in the setpoint setup, Targ 1 and Targ 2 automatically become available modes for the [SELECT] key. An entry followed by [
8
] changes the currently viewed target. Pressing [
8
] alone allows access to the subsets. PA 1 is the subset for Targ 1 and PA 2 is the subset for Targ 2.
i
Pre-acts 1 and 2 are always available as subsets of their respective targets from the Weigh Mode.
Since the discharge portion of the Both cycle is a loss-in-weight operation, target 2 and pre-act 2 entries are entered as positive values and interpreted by the indicator as negative. See Changing Targets from the Weigh Mode
(General) on page 57 for detailed instructions on changing target values from the Weigh Mode.
E XAMPLE (B OTH )
With a system set up to fill a weigh vessel with 2000 lbs. of paint and to meter out the paint in 45 lb buckets, the following settings might be used:
Actual Cutoff
Value
Parameter Setting
Targ 1 = 2000
Based = Net
PA 1 = 5
Learn 1 = Enabled
Start 1 = R-but
2000 – 5 = 1995
Comments
Desired vessel fill target.
Targets are compared to net weight.
Fill valve closes at 1995 lbs.
Analyze five previous fills and auto-adjust pre-act 1.
Start fill with remote key closure.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Parameter Setting
Targ 2 = 45
PA 2 = 5
Learn 2 = Enabled
Start 2 = [TARE]
Pause = None
Actual Cutoff
Value
0 – 45 = (-45)
45 – 5 = 40
0 – 40 = (-40)
Comments
Desired discharge target
(decreasing weight from a net zero: enter as a positive value).
Discharge valve closes at
(-40) lbs. (decreasing weight from a net zero: enter as a positive value).
Analyze five previous discharges and auto-adjust pre-act 2.
Start discharge with [TARE] .
Disable pause function.
A
BSOLUTE
C
HECK
-W
EIGHING
This program is commonly used for check-weigh applications. After a target weight is entered, upper and lower tolerances are entered as absolute values. Over and Under tolerances are also entered as absolute values. The desired target may be based on gross weight, net weight, or quantity (if counting is enabled).
Table 3-17: Setpoint Setup (Absolute Check-Weighing)
Setpoint Selection
P5100.6
P5101.--
P5102.--
P5103.--
P5104.0
Function
ChecA
Targ1
Lo
Hi
Based
Description
Check-weigh by absolute value.
Absolute target value.
Low acceptance value.
High acceptance value.
Select from Net , Gross or Count
( Quantity) .
See Key-In Parameters on page 23 for instructions on using front panel keys for entering data.
S ETPOINT A CTIVATION (A BSOLUTE C HECK -W EIGHING )
In order for the annunciators or setpoints to activate, the displayed value must be at least five graduations above zero. A setpoint option board may be installed to allow the M350 to directly control lights, buzzers, dropgates, or reject devices (see Setpoint Card Connections on page 108).
i
Although the setpoint annunciators are not motion-inhibited, the setpoint relay outputs will not activate until a no-motion condition exists.
68
C H A P T E R 3 : C O N F I G U R A T I O N
Check-Weigh
Status
OVER
GOOD
UNDER
Annunciator
Status
SP 1
Illuminated
SP 2
Illuminated
SP 3
Illuminated
Annunciator
Color (LED)
Red
Green
Yellow
Setpoint Status (Requires
Setpoint Option Board)
Relay 1 Contacts Closed,
Relay 2 and 3 Contacts Open.
Relay 2 Contacts Closed,
Relay 1 and 3 Contacts Open.
Relay 3 Contacts Closed,
Relay 1 and 2 Contacts Open.
i
The Pre-Acts, Learn Mode, and Pause Feature options are not applicable to check-weigh operation.
C
HANGING
T
ARGETS FROM THE
W
EIGH
M
ODE
(A
BSOLUTE
C HECK -W EIGHING )
When Check-Weigh by Absolute is configured in the setpoint setup, the
Targ 1 value automatically becomes an available mode for the [SELECT] key. Keying in a value before pressing [ 8 ] changes Targ 1. Targ 1 is entered as an absolute value. Pressing [ 8 ] alone gives access to the subsets. Lo and Hi are the subsets for Targ 1. Lo and Hi are also entered as absolute values. See Changing Targets from the Weigh Mode (General) on page 57 for detailed instructions on changing target values from the Weigh
Mode.
E XAMPLE (A BSOLUTE C HECK -W EIGHING )
With a system set up to check-weigh 50 lb. cement bags, the following settings might be used check-weigh bag from 49.5 to 51.5 lbs.:
Parameter Setting
Target = 50.00
Low Value = 49.50
High Value = 51.50
Acceptable Check-Weigh
Values
49.50 – 50.00 lbs.
50.00 – 51.50 lbs.
Comments
Desired bag weight.
Low acceptable range
= 49.50 to 50.00 lbs.
High acceptable range
= 50.00 to 51.50 lbs.
I
NDEPENDENT
S
ETPOINT
O
PERATION
Independent Setpoints allow controlling setpoints when the gross, net or quantity (if counting is enabled) is above or below a target value. The reset
(deactivation) choice of each setpoint is selectable from Tare , Remote Key ,
69
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Auto , Non-latching or Absolute . See Key-In Parameters on page 23 for instructions on using front panel keys for data entry.
Table 3-18: Setpoint Setup (Independent)
Setpoint
Selection
P5100.7
Function
Indep
Description
P5121.1
Base 1
Independent Setpoints.
Select from Net , Gross or Count ( Quantity) for setpoint 1.
Activate setpoint 1 when weight is above or below.
P5122.0
Act 1
P5123.--
P5124.0
P5125.0
P5126.--
P5127.1
P5131.1
P5132.0
P5133.--
P5134.0
P5135.0
P5136.--
P5137.1
P5141.1
P5142.0
P5143.--
P5144.0
P5145.0
P5146.--
P5147.1
Targ 1
Stbl 1
Rset 1
Rtrg 1
Rstb 1
Base 2
Act 2
Targ 2
Stbl 2
Rset 2
Rtrg 2
Rstb 2
Base 3
Act 3
Targ 3
Stbl 3
Rset 3
Rtrg 3
Rstb 3
Setpoint 1 target for weight to either rise above or fall below.
Setpoint 1 activation stability setting.
Reset selection for setpoint 1.
Value for reset. *Only available if “Value” is selected for Reset 1.
Reset 1 stability setting.
Select from Net , Gross or Count ( Quantity) for
Setpoint 2.
Activate setpoint 2 when weight is above or below.
Setpoint 2 target for weight to either rise above or fall below.
Setpoint 2 stability setting.
Reset selection for setpoint 2.
Value for reset. *Only available if “Value” is selected for Reset 2.
Reset 2 stability setting.
Select from Net , Gross or Count ( Quantity) for
Setpoint 3.
Activate setpoint 3 when weight is above or below.
Setpoint 3 target for weight to either rise above or fall below.
Setpoint 3 stability setting.
Reset selection for setpoint 3.
Value for reset. *Only available if “Value” is selected for Reset 3.
Reset 3 stability setting.
S ETPOINT A CTIVATION (I NDEPENDENT )
Independent Setpoints can be activated when either the gross weight, net weight or quantity (if counting is enabled) is above or below a target value.
When an independent setpoint is set to Activate Above, the setpoint will activate when the selected mode (gross, net or quantity) is equal to or
70
C H A P T E R 3 : C O N F I G U R A T I O N above the target. When set to Activate Below, the selected mode must actually be below the target.
i
A setpoint option board may be installed to allow the M350 to directly control lights, buzzers, valves or relays (see Setpoint Card Connections on page 108). Also, the setpoints can be configured to ignore or heed the stability setting (P114).
Independent Status Annunciator Status
Setpoint 1 Active
Setpoint 2 Active
Setpoint 3 Active
SP 1 Illuminated
SP 2 Illuminated
SP 3 Illuminated
Setpoint Status (Requires
Setpoint Option Board)
Relay 1 Closed
Relay 2 Closed
Relay 3 Closed
Independent Setpoint Reset (deactivation) choices:
Parameter
Setting
P51x5.0
P51x5.1
P51x5.2
P51x5.3
P51x5.4
Reset Choice
Tare
Remote Key
Auto
Non-Latched
Reset Value
Description
Setpoint deactivates with [TARE] .
Setpoint deactivates with Remote Key closure.
Setpoint deactivates when weight returns to
+/- 5 graduations of zero and stabilizes.
Setpoint deactivates when weight value is in a range opposite of the activation setting.
Setpoint deactivates when weigh reaches a second value and stabilizes.
i
The Pre-Acts, Learn Mode, and Pause Feature options are not applicable to
Independent Setpoint operation.
C HANGING T ARGETS FROM THE W EIGH M ODE (I NDEPENDENT )
When Independent Setpoints are configured in the setpoint setup, Targ 1, 2 and 3 automatically become available modes for the [SELECT] key. An entry followed by [ 8 ] changes the currently viewed target. If the reset for a setpoint is set to ‘value’, then pressing [ 8 ] alone will allow access to the subset of the target. Rtrg 1, 2 and 3 are the respective subsets for Targ
1, 2 and 3. See Changing Targets from the Weigh Mode (General) on page
57 for detailed instructions on changing target values from the Weigh
Mode.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
E XAMPLE (I NDEPENDENT )
Setup a continuous-cycle static weighing system that fills a weigh hopper from a storage bin. The weigh hopper should stop the fill at a predetermined target, dump the product into a bag, and then restart the fill.
A warning light should come on to give an operator advance notice to change the bag. The following setup might be used to achieve 1000 lb dumps:
Parameter Setting Description
P5121.1 ~ Base 1 ~ Net Weigh hopper dump valve based on net weight.
P5122.0 ~ Act 1 ~ HI
Hopper dump valve opens when net weight rises above target 1.
P5123.-- ~ Targ 1 ~ 1000 Target 1 value = 1000 kg.
P5124.1 ~ Stbl 1 ~ Inhib Hopper dump valve delayed until scale is stable.
Dump valve auto-closes when net is within +/- 5
P5125.2 ~ Rset 1 ~ Auto grads of zero and stable.
P5127.1 ~ Rstb1 ~ Inhib Dump valve closure delayed until scale is stable.
P5131.1 ~ Base2 ~ Net Weigh hopper fill valve based on net weight.
P5132.1 ~ Act 2 ~ Under
Fill valve opens when net weight falls below target
2.
P5133.-- ~ Targ 2 ~ =100 Target 2 value = 100 kg.
P5134.1 ~ Stbl2 ~ =Inhib Fill valve opening delayed until scale is stable.
Fill valve closes when net weight reaches reset target
P5135.4 ~ Rset 2 ~ =Targ
2.
P5136.-- ~ Rtrg2 ~ 1000 Reset target 2 = 1000 kg.
P5137.0 ~ Rstb2 ~ Ignore Fill valve closes regardless of stability.
P5141.1 ~ Base 3 ~ Net Alarm light relay based on net weight.
P5142.0 ~ Act 3 ~ Above
Alarm relay activates when net weight rises above target 3.
P5143.-- ~ Targ 3 ~ =900 Target 3 = 900 kg.
P5144.0 ~ Stbl3 ~ Ignore Alarm relay activates regardless of scale stability.
P5145.3 ~ Rset 3 ~ Non-L
Alarm relay closes when net weight falls below target 3.
P5147.0 ~ Rset3 ~ Ignore Alarm relay closes regardless of scale stability.
72
C H A P T E R 3 : C O N F I G U R A T I O N
RS-485 M
ULTI
-D
ROP
N
ETWORK
S
ETUP AND
O
PERATION
Table 3-19: RS-485 Network Parameters
P ARAMETER
S ETTING
D ISPLAYED
N AME
D
ESCRIPTION
P250.00
P251.00
rS485
Addr
Enable or disable RS-485 network option.
Specifies the address of the controller for RS-485
Multi-Drop communications.
T YPE / CHOICES
(*=D EFAULT )
Disbl*, Enabl
Numeric Entry:
Disabled (0*) and
4 – 254
The RS-485 multi-drop network option supports both half duplex (2- wire) and full duplex (4-wire) modes of operation. The mode of operation is determined by setting jumpers 1–4 on the RS-485 option board.
Table 3-20: RS-485 Mode of Operation
J
UMPER
1
2
3
4
H
ALF DUPLEX
Installed
Installed
Installed on the endpoints of the network
Installed
F
ULL
D
UPLEX
Open
Open
Installed on the endpoints of the network
Open
D
ESCRIPTION
Selects half or full duplex
Termination resistor (R8
– 121
Ω
)
Receiver disabled when transmitting (if installed)
S ETUP
The M350 controller supports address recognition, which allows a single master device to communicate with up to 250 distinct slave controllers .
P250 must be enabled in order to gain access to P251. Enabling P250 by itself only causes the RTS line to become a driver enable for the RS-485 network option. Changing the P251 address to a value of 4 – 254 enables the network address recognition receive feature (i.e. networking).
O PERATION
When P251 is enabled by choosing a valid address, the M350 will ignore all data it receives until an <STX> character is followed immediately by a character that matches the address defined by setup parameter P251. If these two conditions are met then the M350 will process all subsequent data until the end of block character, <ETX>, is received, signaling the end
73
3 5 0 D I G I T A L W E I G H T I N D I C A T O R of the transmission. The receive routine of the M350 then resets to look for the <STX> character again.
The data packet format recognized by the M350 is defined as follows:
<STX><ADDRESS><DATA><DATA><DATA><DATA>…<ETX>
Refer to Table 3-5 on page 46 for <STX > and <ETX> ASCII codes. The address is a single byte decimal value (4 – 254). The <DATA> can be any information recognized by the M350, including direct commands – such as a %p (Print). This would direct the addressed unit to send its print transmission defined at P213 over the network.
i
If the received address character does not match P251 then all of the subsequent data is ignored until the next start of packet character,<STX>, is received.
i
An address of 0 at P251 will cause the M350 to process all received data.
N ETWORK P ROTOCOL
The protocol settings for the RS-485 network option board are the same as the protocol settings for RS-232. These settings are found starting at parameter P200.
i
All devices connected to the network must have matching protocol settings.
74
4 C
HAPTER
4: C
ALIBRATION
M
ODE
Calibration uses the load cell(s) output signal to establish zero (no load) and span (test load) reference points. Calibration information is retained in non-volatile memory in the event of power-loss. There are two methods of accessing the Calibration Mode, exiting the Setup Mode, and entering Fast
Calibration. Both approaches are discussed below. Refer to Establishing
Zero on page 82 for complete examples of Fast Calibration methods.
S
ETUP
M
ODE
C
ALIBRATION
You can enter the Calibration Mode after accessing the Setup Mode to view and/or change parameter settings ( see Setup Mode on page 19).
To access the Calibration Mode when viewing any setup parameter:
1.
From the Setup Mode, press [ZERO] .
Enter ~ =Cal!
2.
Press [ 8 ] .
First ~ Zero? ~ -0.26
F
AST
C
ALIBRATION
Fast Calibration allows calibration of the M350 scale system without accessing the Setup Mode.
To access Fast Calibration from the Weigh Mode:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup
Enter ~ Code!
2.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal!
First ~ Zero? ~ -0.26
Fast Calibration can also be accessed if the following data stream is received via the comm port:
100%s54321%i%e
75
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P
ERFORMING
C
ALIBRATION
Calibration always begins by establishing a zero (no-load) reference. A complete calibration also requires establishing a span (test load) reference.
This section details various methods for obtaining zero and span references.
i
Press [CLR] during calibration to back up one step in the procedure.
E
STABLISHING
Z
ERO
The M350 provides five methods for obtaining a zero (no load) calibration reference, First Zero, Last Zero, False Zero, Only Zero, and Cal Reset.
Press [SELECT] to scroll through the five selections. Press [
8
] to establish zero using the displayed method.
To select a calibration method:
1.
Press [ZERO] + [SELECT] to display the calibration prompt.
2.
Press [ZERO] [PRINT] [UNITS] [TARE] to access the Calibration
Mode.
3.
Press [SELECT] to scroll through the five selections.
4.
Press [
8
] to establish zero.
F IRST Z ERO ?
The most common zeroing procedure, First Zero is used to establish a new zero (no load) calibration reference before proceeding to span the M350.
Use this method for first-time calibration and complete recalibration.
First Zero Calibration Method Example:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup
2.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal
First ~ Zero? ~ -0.26
3.
Remove any load on the scale.
First ~ Zero? ~ -0.42
4.
Press [
8
] to establish zero.
76
C H A P T E R 4 : C A L I B R A T I O N
0.00
5.
Pause for motion delay.
Enter ~ Load ~ 0.00
6.
Place a 100lb test weight on scale.
Enter ~ Load ~ 99.66
7.
Enter 100.
100
8.
Press [
8
] to establish span.
100.00
9.
Pause for motion delay.
Cal ~ Good? ~ 100.00
10.
Press [
8
] to accept calibration.
Enter ~ = Stor
11.
Press [ 8 ] to save calibration.
Enter ~ =End
12.
Press [
8
] to exit calibration.
100.00
13.
Remove the calibration weight.
0.00
L AST Z ERO ?
The Last Zero procedure allows recalibration of the weighing device using an existing test load. This is especially beneficial when checking high capacity applications such as tank weighing to minimize the task of placing and removing test weights.
!
Establish gross zero before entering setup or calibration!
Last Zero Calibration With Weight Already Applied Example:
1.
Remove any load on the scale.
10.
2.
Press [ZERO] to zero the scale.
77
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
00.
3.
Apply a 10000 lb test weight to verify calibration.
9970.
4.
Press [ZERO] + [SELECT] .
Setup
5.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal
First ~ Zero? ~ 9930.
6.
Press [SELECT] .
Last ~ Zero? ~9930.
7.
Press [ 8 ] to use last zero.
Enter ~ Load? ~ 9970.
8.
Enter 10000.
10000
9.
Press [ 8 ] to establish span.
10000.
10.
Pause for motion delay.
Cal ~ Good? ~ 10000.
11.
Press [
8
] to accept calibration.
Enter ~ = Stor
12.
Press [
8
] to save calibration.
Enter ~ =End
13.
Press [
8
] to exit calibration.
10000.
14.
Remove the calibration weight.
00.
F ALSE Z ERO ?
False Zero calibrates the M350 without removing the current gross weight.
This is particularly useful in tank weighing applications where it may be both time consuming and costly to completely empty the tank. This operation is achieved by establishing a false (temporary zero) zero
78
C H A P T E R 4 : C A L I B R A T I O N reference. Test weights may then be added to verify calibration. The zero reference determined during the last calibration is not affected.
False Zero Calibration Without Removing Existing Load Example:
1.
Press [ZERO] + [SELECT] .
Setup
2.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal
First ~ Zero? ~ 5075.
3.
Press [SELECT] [SELECT] .
False ~ Zero? ~5075.
4.
Press [
8
] to establish false (temporary) zero.
Units ~ =lb
5.
Pause to display calibration units.
Enter ~ Load? ~ 00.
6.
Place a 2500lb test weight on scale.
Enter ~ Load? ~ 2510.
7.
Enter 2500.
2500
8.
Press [
8
] to establish span.
2500.
9.
Pause for motion delay.
Cal ~ Good? ~ 2500.
10.
Press [
8
] to accept calibration.
Enter ~ = Stor
11.
Press [ 8 ] to save calibration.
Enter ~ =End
12.
Press [
8
] to exit calibration.
5055.
15.
Remove the calibration weight.
00.
79
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
O NLY Z ERO ?
Only Zero is used to establish a new calibration zero without affecting the span. This is useful for correcting changes to the scale’s dead load, for example adding safety rails to a truck scale platform.
Only Zero Calibration Example:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup
2.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal
First ~ Zero? ~2640.
3.
Press [SELECT] [SELECT] [SELECT] .
Only ~ Zero? ~ 2640.
4.
Remove any load on the scale.
Only ~ Zero? ~ 2620.
5.
Press [
8
] to establish zero.
00.
6.
Pause for motion delay.
Cal ~ Good? ~ 00.
7.
Press [
8
] to accept calibration.
Enter ~ = Stor
8.
Press [
8
] to save calibration.
Enter ~ =End
9.
Press [
8
] to exit calibration.
00.
C AL R ESET
Cal Reset may be necessary when an over-load or under-load condition exists, preventing the completion of the calibration process. Calibration
Reset adjusts the zero and gain factors of the A/D amplifier to factory default values for maximum sensitivity.
After performing a calibration reset, a complete recalibration is required.
The effects of a calibration reset do not take effect until the M350 is recalibrated and calibration information has been saved.
80
C H A P T E R 4 : C A L I B R A T I O N i
If Code 02 (under-load) or Code 03 (over-load) is displayed during calibration, press [CLR] to perform a calibration reset.
Reset Calibration Gain Factors Example:
1.
Press [ZERO] + [SELECT] .
Setup
2.
Press [ZERO] [PRINT] [UNITS] [TARE] .
Fast ~ Cal
First ~ Zero? ~ xx.xx
3.
Remove any load on the scale.
First ~ Zero? ~ xx.xx
4.
Press [
8
] to establish zero.
Enter ~ Load? ~ 0.00
5.
Place a 100lb test weight on scale.
Code03
6.
Press [CLR] .
First ~ Zero? ~ -0.26
7.
Remove any load on the scale.
First ~ Zero? ~ -0.42
8.
Press [
8
] to establish zero.
0.00
9.
Pause for motion delay.
Enter ~ Load ~ 0.00
10.
Place a 100lb test weight on scale.
Enter ~ Load ~ xx.xx
11.
Enter 100.
100
12.
Press [
8
] to establish span.
100.00
13.
Pause for motion delay.
Cal ~ Good? ~ 100.00
14.
Press [
8
] to accept calibration.
Enter ~ = Stor
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
15.
Press [
8
] to save calibration.
Enter ~ =End
16.
Press [
8
] to exit calibration.
100.00
17.
Remove the calibration weight.
0.00
E STABLISHING S PAN
Once a zero reference has been established, the M350 displays Enter ~
Load and awaits the entry of a span (test load) value. This value may be entered before or after the test load has been applied.
If the calibration weight value was entered before applying the test weight,
Add ~ Load is displayed indicating that the test weight should now be applied. Apply the test weight, press [ 8 ] and proceed to Exiting
Calibration on page 89.
If it is necessary to repeat the calibration process, press [CLR] at the Cal ~
Good?
prompt and repeat the calibration process.
Establishing span with a 100lb test weight:
1.
Place a 100lb test weight on scale.
Enter ~ Load ~ xx.xx
2.
Enter 100.
100
3.
Press [
8
] to establish span.
100.00
4.
Pause for motion delay.
Cal ~ Good? ~ 100.00
When making a significant change to the previous calibration, or when the calibration weight is less than 5% of full scale capacity, ReCal ~ ???
will be displayed instead of Cal ~ Good?
In this event it is recommended that the calibration be performed a second time. Press [ 8 ] to recalibrate, or press [CLR] to skip recalibration.
82
C H A P T E R 4 : C A L I B R A T I O N
E XITING C ALIBRATION
Once zero and span have been established, the newly acquired calibration information must be saved to non-volatile memory before it will be realized in the Weigh Mode.
To exit and save calibration information:
1.
Press [
8
] to accept calibration.
Enter ~ = Stor
2.
Press [
8
] to save calibration.
Enter ~ =End
3.
Press [
8
] to exit calibration.
100.00
To exit without saving calibration information:
1.
Press [
8
] to accept calibration.
Enter ~ = Stor
2.
Press [CLR] .
Enter ~ =Undo
3.
Press [ 8 ] .
Enter ~ =End
4.
Press [
8
] to exit calibration.
99.66
i
When saving calibration, parameters changed in the Setup Mode are also saved with their new selections.
83
5 C
HAPTER
5: L
EGAL
-
FOR
-T
RADE
The M350 default parameter setup does not ensure compliance with legalfor-trade installations as mandated by local weights and measures authorities. This chapter contains information on NTEP and OIML regulations, sealing and audit trails, and other requirements.
Since legal-for-trade requirements may vary, you must ensure that the
M350 is installed in accordance with all local regulations.
NTEP R
EQUIREMENTS
The National Type Evaluation Program (NTEP) is a widely accepted weights and measures standard in the United States, with most states abiding by some or all of the NTEP requirements. A complete list of these regulations is available in the “Handbook 44” publication distributed by the National Institute of Standards and Technology (NIST). For more information, call (301) 975-3058, or visit http://www.nist.gov.
i
The M350 NTEP Certificate of Conformance (C.O.C.) is 98-092A1 .
In order to configure the M350 to comply with NTEP requirements, parameter P440-rstrc ( restrict ) must be enabled. This ensures the following:
•
Serial data will not be received while in the Setup Mode.
•
Received alpha characters will not be displayed.
•
Numeric tare entries cannot be received through the serial port.
•
Pressing [TARE] with a gross weight of zero (0) will not automatically switch to the net mode.
•
Negative tare values are not accepted.
•
Tare rounding is enforced.
•
When the tare value is zero, the net mode is not selectable.
Where applicable, enabling the restrict parameter will over-ride the current setting of other parameters.
i
If the counting feature is enabled, NTEP requires a label on the front of the indicator stating “The counting feature is not legal for trade” . See Other
Requirements on page 93 for other application specific considerations.
85
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
NTEP P ANEL M OUNT R EQUIREMENTS
In addition to all other NTEP requirements, the serial number of a panel mounted unit must be visible from the outside front of the controller. The serial number on the M350 rear label must be engraved in the space provided on the panel mount tag (see Figure 5-1 ). These serial numbers
MUST match. The tag is designed to be applied to the top right edge of the enclosure or to the lower right of the front of the unit. Drill pins (GSE part number 38-04-2960) are supplied with the panel mount kit to mount the tag. The drill pins require a 1/16” hole.
To install the panel mount tag:
1.
Remove the electronics.
2.
Carefully score the case so the drill will not slip.
3.
Drill the mounting holes with a 1/16” drill.
4.
Gently tap the drill pins to secure the label to the case.
5.
Clean out the case.
6.
Re-install the electronics.
!
Damage to the case or electronics is not covered by warranty.
i
The NTEP panel mount requirements are applicable only to the M350 die cast model and panel mount kit.
Figure 5-1: Panel Mount Unit - Serial Number Tag (Die Cast Model)
86
C H A P T E R 5 : L E G A L F O R - T R A D E
OIML R
EQUIREMENTS
The International Organization of Legal Metrology is an intergovernmental body which harmonizes the national metrology regulations of its world wide members. A list of regulation publications may be obtained from the Bureau International de Métrologie Légale (BIML) in
Paris, France.
In order to configure the M350 to comply with OIML requirements, parameter P410-Euro must be enabled. Doing so will ensure the following:
•
An over-load condition will result when the gross weight exceeds nine graduations over the full scale capacity.
•
Full scale capacity is always referenced from the last zero calibration reference, not the last zero acquired by pressing [ZERO] .
Most NTEP requirements will also apply. See the Other Requirements section below for additional considerations.
O
THER
R
EQUIREMENTS
Several parameters must be considered on an individual basis as their configuration may vary with different applications. These parameters include, but are not limited to:
Parameter
P110
P111
P112
P114
P118
P212
Description Comment
Full Scale Capacity Verify proper scale capacity.
Division Size
Zero Track
Stability
Zero Range
Print Stability
Verify that the maximum allowable number of scale divisions are not exceeded.
Verify required selection.
Verify required selection.
Verify required selection.
Verify required selection.
S
EALING AND
A
UDIT
T
RAILS
Most legal-for-trade installations will require the M350 to be sealed. A sealed indicator cannot be accessed for setup or calibration changes without breaking a physical seal or incrementing an event counter, thus providing evidence of tampering.
The M350 has two types of sealing provisions, a physical seal and a three event audit trail counter. Check with your local weights and measures authority to determine your requirements.
87
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P HYSICAL S EAL
The most common sealing method is a lead-wire seal. The M350 provides an easy means of applying this type of seal as shown in Figure 5-3 .
Before applying a wire seal, move the program jumper to the ‘NO’ position as shown in Figure 5-2.
This will prevent access to the Setup and
Calibration Modes.
Figure 5-2: Program Jumper (External and Internal Power Supply Boards)
88
C H A P T E R 5 : L E G A L F O R - T R A D E
.
.
Figure 5-3: Physical Seals (Zinc Die-Cast / Stainless Steel)
A UDIT T RAILS
Three separate incrementing, non-resetable audit trail parameters are used by the M350 to indicate changes to various parameters, P60201 – OIML,
P60203 – Calibration , and P60204 – Setup. An audit trail counter will increment only once upon exiting the Setup Mode and saving changes regardless of how many settings were changed.
OIML A UDIT T RAIL
Changes to any of the following parameters will increment the OIML
(Euro) audit trail at P60201:
•
P110 – P118 (scale setup)
•
P150 (default units)
•
P151 (units enable)
•
P410 (Euro enable)
•
P440 (rStrc enable)
•
Existing Calibration
C ALIBRATION A UDIT T RAIL
Any changes to the existing calibration will increment the Calibration
(CAL) audit trail at P60203.
S ETUP A UDIT T RAIL
Changes to any of the Setup Mode parameters will increment the setup audit trail at P60203.
V IEWING A UDIT T RAIL P ARAMETERS
Audit trail parameters may be viewed at any time.
89
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
To view audit trail parameters:
1.
Press [ZERO] + [SELECT] .
Setup
Enter ~ Code!
2.
Press [
8
] .
-No- ~ Chgs!
P112 ~ FS ~ xx.xx
3.
Enter 60203.
60203
4.
Press [SELECT] to view the selected audit trail.
Audit ~ Trail
CAL. ~ 00001
5.
Press [ZERO] to return to the Weigh Mode.
0.00
90
6
C
HAPTER
6: M350 O
PTION
K
ITS
The capabilities of the M350 can be expanded with the use of one or more option kits. This chapter provides installation procedures for these options.
M350 P
ERIPHERAL
O
PTIONS
The following options are available for the M350:
•
Swivel Bracket Kit (die cast model) (GSE P/N 24350B-301C0)
Allows the indicator to be securely mounted to any surface.
•
Panel Mount Kit (die cast model) (GSE P/N 24350B-300C0)
Allows the indicator to be easily mounted into existing cabinetry.
•
2 - Option Mounting Bracket (GSE P/N 24350B-302C0)
Provides for mounting up to two option boards (required for the stainless steel enclosure only).
•
Analog Output Module (GSE P/N 24350B-203B0)
Provides an electrically isolated, 16-bit analog signal for connectivity to external devices.
•
Setpoint Control Module (GSE P/N 24350B-100C0) (USA)
(GSE P/N 24350B-100C1) (USA/Europe)
(GSE P/N 24350B-100C2)
Provides three discrete outputs for direct control of operation equipment.
•
Battery Power Supply (die cast) (GSE P/N 24350B-120B0)
(stainless steel)(GSE P/N 24350B-121B0)
Gives the M350 portability.
•
Splash Guard (GSE P/N 31-70-35578)
Adheres to the face of the stainless steel model for splash proof protection.
•
Transformer (international version - IEC) (GSE P/N 20-20-35190)
Allows the M350 to run on overseas current.
•
20 mA Current Loop (GSE P/N 24660B-404A0 )
Provides a digital 20 mA current loop.
91
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
S
WIVEL
B
RACKET
The M350 has an optional stainless steel swivel bracket for secure mounting to desks, tabletops or walls. See the Mounting section beginning on page 9 for instructions on mounting the M350 using the swivel bracket.
Figure 6-1: Swivel Bracket Installation (Die Cast Model)
To install the swivel bracket:
1.
Unpack the Swivel Bracket option.
Be sure that all parts shown in Figure 6-1 are accounted for.
2.
Remove the two plastic Heyco plugs.
The plugs are located in the threaded bracket mounting holes on either side of the indicator. Be careful not to scratch the finish of the indicator when removing these plugs.
3.
Place the two spacers against the bracket and then insert the thumb screws.
The spacer and bracket holes should align with the bracket mounting holes on either side of the enclosure.
92
C H A P T E R 6 : O P T I O N S
P
ANEL
M
OUNT
K
IT
The Panel Mount Kit provides an easy way to mount the indicator into new or existing cabinetry. See Figure 6-2 for detailed instructions on panel mounting the M350. See also NTEP Panel Mount Requirements on page
92 for additional panel mounting NTEP requirements.
Figure 6-2: M350 Panel Mount Installation (Die Cast Model)
•
INDICATOR CAN BE INSTALLED USING EITHER BUTTON OR HEX HEAD
SCREWS. BOTH TYPES OF SCREWS ARE SUPPLIED WITH THE KIT.
•
APPLY PRESSURE ON MOUNTING BRACKETS IN DIRECTIONS SHOWN. THIS
WILL ENSURE THE INDICATOR IS DRAWN FIRMLY AGAINST THE PANEL.
•
DRILL 1/16 (.0625) DIA. PILOT HOLES FOR PINS.
•
ADD INDICATOR'S SERIAL NUMBER TO THE LABEL.
To install the M350 Panel Mount Kit:
1.
Unpack the Panel Mount Kit.
Be sure that all parts shown in Figure 6-2 are accounted for.
2.
Remove the two plastic Heyco plugs.
The plugs are located in the threaded bracket mounting holes on either side of the indicator. Be careful not to scratch the finish of the indicator when removing these plugs.
3.
Place the adhesive gasket around the panel cutout.
This step is optional. The gasket should be adhered onto the outside of the panel and centered around the cutout.
93
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
4.
Place the M350 through the panel cutout.
This step may require a second person to hold the indicator in place.
The indicator should be centered inside the cutout.
5.
Using two small screws and star washers, attach the two panel mount brackets. The center holes of the brackets should align with the threaded bracket mounting holes on either side of the indicator. The two brackets should angle away from the indicator.
6.
Using four long screws and four lock-nuts, secure the indicator to the panel. Thread the lock-nuts onto the screws so that they will not interfere with tightening the screws into the threaded bracket holes.
Evenly tighten the four screws until they are snug. Do not overtighten. Now thread the lock-nuts down until they are snug against the bracket.
A
NALOG
C
ARD
C
ONNECTIONS
The 16-bit electrically-isolated analog output module provides a highly accurate analog signal, proportional to weight. This signal can be used for interfacing to PLCs, chart recorders, and other such devices.
i
See Analog Output Setup on page 40 for analog output software configuration details.
!
The Model 350 contains components which could be damaged by
Electrostatic Discharge (ESD) if serviced improperly. Use proper ESD precautions (wear a wrist strap connected to ground, use grounded work stations, etc.) when opening the enclosure.
High voltages may exist within the enclosure! To prevent the risk of electrical shock, ALWAYS unplug the M350 when opening the enclosure.
Installation and servicing of the M350 should be performed by authorized and qualified service personnel only.
Never connect or disconnect option board cables while the indicator is powered. Doing so may result in circuit board damage.
94
C H A P T E R 6 : O P T I O N S
To install the Analog Output Module (350 die cast model):
1.
Open the indicator.
Remove the four screws from the back of the unit. It may help to remove the swivel bracket, if installed.
2.
Place the back of the indicator, open side down, on a firm surface. Using a hammer and screwdriver, remove the appropriate knock-out.
It helps to place the screwdriver tip on the knockout pad, rather than in the groove. The knock-outs do not require much force to remove. If only installing one option, the left knock-out (as viewed from the rear) should
Figure 6-3: Option Board Installation
(Die Cast M350) be removed. A small file may be used to remove any burrs.
3.
Flip the back cover over and place the Analog Output Module, component side down, over the four mounting holes. Install four
10mm screws to a minimum of 8 in/lb of torque.
Be sure the cable is already attached before installing the card. Also, be sure the cable is attached to the left-most connector (as viewed from the component side of the option board). The second connector is for ‘daisy-chaining’ another option card. The screws used to mount the option card are self-tapping and will require added torque when first installed.
4.
Attach the loose end of the cable to the serial I/O connector (J7) on the main board or the open connector of a previously installed option card.
J7 is a 10-pin polarized connector. Be sure the cable is not twisted when installed. If this is a second option card, route the cable to the open connector of the first option card.
5.
Reinstall the back cover. Tighten the four screws to a minimum of 8 in/lb torque.
Be sure to avoid ‘pinching’ the cable between the housing halves.
Affix all appropriate labels to the back of the indicator.
95
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
To install the Analog Output Model (350 Stainless Model):
1.
Open the indicator.
Remove the eight screws from the back of the unit.
2.
Locate the three studs and one thru-hole on the 350 main board that the option mounting bracket will be attached to. See Figure
6-4 . Remove the nuts from the three studs on the main board.
It may help to position the option mounting bracket over the 350 main board to locate the three studs and one thru-hole.
3.
Install the nylon stand-off supplied with the option bracket kit into the thruhole on the option bracket.
See Figure 6-4 .
Figure 6-4: Option Board Installation
(Stainless M350)
The thru-hole is located on the option bracket, towards the center of the board, on the irregular flanged section (a smaller hole than the others on the bracket) that would be positioned towards the power supply regulator (U11) with a flanged heat sink on it.
4.
Install the three hex stand-offs onto the studs on the main board.
Tighten the stand-offs gently with a 6 mm hex nut driver.
5.
If this is the first option card, attach the loose end of the cable to the serial I/O connector (J7) on the main board. Let the card gently hang over to the outside of the enclosure until mounting. J7 is a 10-pin polarized connector.
This step is not necessary if this is the second card installed.
6.
Position the nylon stand-off (attached to the bracket) into the hole on the main board while routing the threads of the other hex stand-offs thru the holes on the bracket, while pressing down over the nylon stand-off until it snaps into place.
Line-up the three other hex stand-offs into the bracket thru-holes first before securing the nylon stand-off into the main board thru-hole.
96
C H A P T E R 6 : O P T I O N S
7.
Secure the bracket into position with the hex nuts supplied with the kit. Do not over tighten.
8.
Place one set (four pieces) of the nylon sleeve type stand-offs onto the four studs of the option bracket. Place the Analog Output Module, component side up, onto the nylon sleeve stand-offs. Install four hex nuts and secure gently.
Select the four studs closest to the (J7) connector of the main board to add the four sleeve stand-offs. Be sure the cable is already attached to
(J7) on the main board before installing the card. Also be sure the cable is attached to the right-most connector (J3) (as viewed from the component side of the option board). The second connector (J1) is for
‘daisy-chaining’ another option card. The additional mounting hardware is supplied with the option bracket kit. This hardware should be saved for future use if not being used.
9.
Route the analog cable through the available strain-relief.
Make sure to connect cable conductors to the proper terminals before closing the unit.
10.
Reinstall the back cover. Tighten the eight screws securely to create a good seal.
Be sure to avoid ‘pinching’ the cable between the housing halves.
Table 6-1: Analog Output Connections
Pin Connection Name Description
4
5
6
1
2
3
Earth Ground
+ 5 VDC
Isolated Ground
Vout
Isolated Ground
Iout
Non-isolated earth ground (future use).
Isolated 5 volt source (future use).
Provides an isolated ground connection.
Used for the 0-10 VDC analog signal output.
Provides an isolated ground connection.
Used for 4-20 or 0-20 mA analog signal output.
97
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Place this label on the rear of the indicator (die cast), above the analog option knockout.
(Stainless steel model) Cut off the text “ANALOG OUTPUTS” from the label and place it on the connector shown below (apply to the area just under the field external wire terminals).
Wire the option connector in accordance with the label (left to right).
98
C H A P T E R 6 : O P T I O N S
A NALOG B OARD D IAGNOSTIC AND T EST P ROCEDURES
!
The following test procedures affect the analog output signal levels. Be sure to disconnect all peripheral devices attached to the analog option card.
i
Test equipment needed: precision DC voltmeter, 500 ohm precision resistor.
The 500 ohm resistor must meet the following specifications: .01% tolerance and 5ppm temperature coefficient.
i
This test procedure requires that the initial analog option calibration procedure has been completed
To test the 0-10v output mode:
1.
Enter the Setup Mode (see Setup Mode on page 19).
Chngs Poss!
P110.-- ~ F.S.= ~ 100.00
2.
Attach the voltmeter + (red) lead to pin 3 (0-10VDC) and the - (black) lead to pin 2 (ISOLATED GND) of the Analog Output connector.
3.
Key in 62002 [SELECT] .
Test ~ 0-10v
Per P176
4.
Press [
8
] to set the output to 0%.
0-10v ~ 0P
0.00 VDC
5.
Press [
8
] to increase the output to 25%.
0-10v ~ 25P
2.50 VDC
6.
Press [
8
] to increase the output to 50%.
0-10v ~ 50P
5.00 VDC
7.
Press [
8
] to increase the output to 75%.
0-10v ~ 75P
7.50 VDC
8.
Press [
8
] to increase the output to 100%.
0-10v ~ 100P
10.00 VDC
To test the 0-20mA output mode:
99
3 5 0 D I G I T A L W E I G H T I N D I C A T O R i
Voltmeter readings are based on the use of a 500 ohm precision resistor.
Caution! Do not exceed 500 ohms.
1.
Enter the Setup Mode (see Setup Mode on page 19).
Chngs Poss!
P110.-- ~ F.S.= ~ 100.00
2.
Attach the precision resistor to pin 5 and pin 6.
3.
Attach the voltmeter + (red) lead to pin 6 (0-20 mA) of the analog output connector.
4.
Attach the voltmeter - (black) lead to pin 5 (ISOLATED GND) of the
Analog Output connector.
5.
Key in 62003 [SELECT] (see Setup Mode on page 19).
Test ~ 0-20A
Per P176
6.
Press [
8
] to set the output to 0%.
0-20A ~ 0P
0.00 V
7.
Press [
8
] to increase the output to 25%.
0-20A ~ 25P
2.5 V
8.
Press [
8
] to increase the output to 50%.
0-20A ~ 50P
5 V
9.
Press [
8
] to increase the output to 75%.
0-20A ~ 75P
7.5 V
10.
Press [
8
] to increase the output to 100%.
0-20A ~ 100P
10 V
100
C H A P T E R 6 : O P T I O N S
To test the 4-20mA output mode: i
Voltmeter readings are based on the use of a 500 ohm precision resistor.
Caution! Do not exceed 500 ohms.
1.
Enter the Setup Mode (see Setup Mode on page 19).
Chngs Poss!
P110.-- ~ F.S.= ~ 100.00
2.
Attach the precision resistor to pin 5 and pin 6.
3.
Attach the voltmeter + (red) lead to pin 6 (4-20 mA) of the analog output connector.
4.
Attach the voltmeter - (black) lead to pin 5 (ISOLATED GND) of the
Analog Output connector.
5.
Key in 62004 [SELECT] (see Setup Mode on page 19).
Test ~ 4-20A
Per P176
6.
Press [
8
] to set the output to 0%.
4-20A ~ 0P
2 V
7.
Press [
8
] to increase the output to 25%.
4-20A ~ 25P
4 V
8.
Press [
8
] to increase the output to 50%.
4-20A ~ 50P
6 V
9.
Press [
8
] to increase the output to 75%.
4-20A ~ 75P
8 V
10.
Press [
8
] to increase the output to 100%.
4-20A ~ 100P
10V
101
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
A
NALOG
O
UTPUT
S
ETUP
Table 6-2: Analog Output Parameters
Parameter
Setting
P171.00
Displayed
Name
AnAlg
P172.00
P173.--
P174.--
P175.10
P176.01
AnPar
AnlFS
AnOff
AnRng
AnRst
Description
Enable analog option.
Parameter that analog signal corresponds to. Displayed corresponds to gross while viewing the gross weight and net otherwise.
Full scale value at which P172 selection yields an output of 10 volts. If set to 0, uses P110 setting.
Offset value which yields a 0 volt output.
Range Value (1-10) which specifies the max value of analog output – entered in terms of voltage. NOTE: This does not change the analog span. A 0-
10,000 lb. output set to 8 will stop increasing its analog signal at 8,000 lbs.
Reset state – Specifies analog signal level when MODEL 350 and MODEL 350 enters Setup
Mode.
P177.00
AType
Specifies output type: voltage or current.
Type/choices
(*=Default)
Disbl*, Enabl
Gross*, Net,
Displayed
Numeric Entry:
0* to ±1,000,000
Numeric Entry:
0* to ±1,000,000
Numeric entry:
0 to 10*
10 V (Max Output)
0 V (Min Output)
No Change*
0 –10 volts*,
0 -20mA,
4 -20mA
V out
=
(P172: Parm Value) - (P174: Zero Offset)
(P173: Full Scale Value) – (P174: Zero Offset)
* 10
The actual output signal is calculated as follows:
If the result is greater than the Max Range Value (P175), then the analog signal is limited to the Max Range Value.
102
C H A P T E R 6 : O P T I O N S
A
NALOG
O
UTPUT
C
ALIBRATION
P
Table 6-3: Analog Output Calibration Parameters
ARAMETER
S ETTING
D ISPLAYED
N AME
D ESCRIPTION
P61200
P61201
P61202
P61203
P61204
P61205
P61206
10oFF
10Gn
0oFF
0Gn
4oFF
4Gn
Srln
Value required to precisely output 0V in 0 – 10V output mode (i.e. offset).
Value required to precisely output 10V in 0 – 10V output mode (i.e. gain).
Value required to precisely output 0 mA in 0 – 20 mA output mode (i.e. offset).
Value required to precisely output 20 mA in 0 – 20mA output mode (i.e. gain).
Value required to precisely output 0 mA in 4 – 20 mA output mode (i.e. offset).
Value required to precisely output 20 mA in 4 – 20mA output mode (i.e. gain).
Analog option board serial number.
T YPE / CHOICES
(*=D EFAULT )
Numeric Entry:
0 to 15,000
2,923*
Numeric Entry:
50,000 to 65,535
61,027*
Not adjustable:
0*
Numeric Entry:
50,000 to 65,535
54,555*
Numeric Entry:
0 to 15,000
10,910*
Numeric Entry:
50,000 to 65,535
54,555*
Numeric Entry:
0* - 4,294,967,295
The analog output calibration procedure establishes explicit zero and full scale values for each of the three analog output modes: 0 – 10V, 0 – 20 mA and 4- 20 mA. There are five adjustment values for the analog option, located at the information parameters P61200 through P61205, that allow the zero and full scale output of each mode to be adjusted to exact values.
This allows the analog option to be configured to match the needs of the system being connected to its outputs.
The calibration values for each of these modes has been determined at the factory. These values are provided on paper with each board to make calibrating the analog option a simple process. Each analog option board can be identified by its serial number, which is entered in the unit during the calibration process.
E NTERING A NALOG C ALIBRATION V ALUES
An example of the printout included with each analog option kit follows below:
103
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
100%s23640%i%e Access Setup Modes, Allowing
Changes
60100%s%e P60100. c1998-GSE-
60101%s%e P60101. 0MODEL 350 and MODEL
350p01009
60102%s%e P60102. 06-30-2000
60200%s%e P60200. BrdSn573192
60201%s%e P60201. AuditTrail Euro
00001
60202%s%e P60202. InsSn329074
60203%s%e P60203. AuditTrail Cal.
00025
60204%s%e P60204. AuditTrail Setup
00050
61200%s2923%e P61200. 10off 2923
61201%s61027%e P61201. 10 Gn 61027
61202%s0%c P61202. 0 off 0
61203%s54555%e P61203. 0 Gn 54555
61204%s10910%e P61204. 4 off 10910
61205%s54555%e P61205. 4 Gn 54555
61206%s123456%e P61206. Srl n 123456
%z Exit Setup Mode
Analog calibration values can be entered into the MODEL 350 AND
MODEL 350 by keying in the data in the left-hand column, beginning at the line starting with “61200…”, replacing the “%s” character pairs with the [SELECT] key and “%e” with the [ENTER] key. The line with the
“%c” is not adjustable and can not be entered.
You can adjust the included factory recommended offset and gain values to precisely configure the system being connected to these outputs. Once the initial factory values have been entered, pressing the [TARE] or
[ENTER] key will cause the count value to increase one count, and pressing the [PRINT] + [UNITS] keys will decrement the count value by one count. All changes made are updated “live” to aid in calibrating a specific device to the analog option board output. Holding down the key(s) will repeat the increment/decrement action.
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C H A P T E R 6 : O P T I O N S
A NALOG O UTPUT E XAMPLE
Analog
Parameter
Setting
P172.01
P173.--
P174.--
P175.--
Parameter
Description
Net Weight
Analog Full
Scale
Zero Offset
Max Range
Value
Example
Value
3.00 lb
20
-40
8
Comments
Current net weight.
Net weight value that would give maximum analog output.
Net weight value that would give minimum analog output.
Maximum analog output allowed
(entered in terms of voltage).
V out
=
3 - (-40)
20 - (-40)
* 10 =
43
60
* 10 = 7.166 v
Since 7.166 v is less than 8 v (per P175), the output signal is not restricted and would be 7.166 v.
If a current output is selected, the output is a milli-amp current where 0 volts corresponds to either 0 mA or 4 mA (as per P177) and 10 volts would translate to 20 mA. Values in between would be scaled proportionately:
I out
=
(20 mA - 4mA) * 7.166 v
+ 4 mA =
10 v
16 * 7.166
10
+ 4 = 15.465 mA
Analog signal resolution: the output is the result of a 16 bit conversion resulting in a resolution of 1 part in 65535 or 10 / 65535 = 0.00015 v.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
S
ETPOINT
C
ARD
C
ONNECTIONS
Using one of the software setpoint configurations (see General Setpoint
Setup on page 53) in conjunction with the setpoint option board gives the
M350 the ability to directly control external devices such as valves, relays, actuators, etc.
There are up to three setpoint outputs available. The activation and deactivation is controlled by the setpoint configuration. The outputs are capable of driving up to one Amp at 20-280VAC & 2 Amp at 3-60VDC.
The solid state relays are normally open (NO) contacts.
i
See General Setpoint Setup on page 53 for setpoint software configuration details.
!
The Model 350 contains components which could be damaged by
Electrostatic Discharge (ESD) if serviced improperly. Use proper ESD precautions (wear a wrist strap connected to ground, use grounded work stations, etc.) when opening the enclosure.
High voltages may exist within the enclosure! To prevent the risk of electrical shock, ALWAYS unplug the M350 when opening the enclosure.
Installation and servicing of the M350 should be performed by authorized and qualified service personnel only.
Never connect or disconnect option board cables while the indicator is powered. Doing so may result in circuit board damage.
To install the Setpoint Control Module (350 die cast model):
1.
Open the indicator.
Remove the four screws from the back of the unit. It may help to remove the swivel bracket, if installed.
2.
Place the back of the indicator, open side down, on a firm surface.
Using a hammer and screwdriver, remove the appropriate knock-out.
It helps to place the screwdriver tip on the knockout pad, rather than in the groove. The knock-outs do not require much force to remove. If only installing one option, the left knock-out (as viewed from the rear) should be removed. A small file may be used to remove any burrs.
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C H A P T E R 6 : O P T I O N S
3.
Flip the back cover over and place the Setpoint Control
Module, component side down, over the four mounting holes. Install four 10mm screws to a minimum of 8 in/lb of torque.
Be sure the cable is already attached before installing the card. Also be sure the cable is attached to the left-most connector (as viewed from the component side of the option board). The second connector is for ‘daisychaining’ another option card. The screws used to mount the option card are self-tapping and will require added torque when first installed.
Figure 6-5: Option Board Installation
(Die Cast M350)
4.
Attach the loose end of the cable to the serial I/O connector (J7) on the main board or the open connector of a previously installed option card.
J7 is a 10-pin polarized connector. Be sure the cable is not twisted when installed. If this is a second option card, route the cable to the open connector of the first option card.
5.
Reinstall the back cover. Tighten the four screws to a minimum of 8 in/lb torque.
Be sure to avoid ‘pinching’ the cable between the housing halves.
Affix all appropriate labels to the back of the indicator.
To install the Setpoint Control Model (350 Stainless Model):
1.
Open the indicator.
Remove the eight screws from the back of the unit.
2.
Locate the three studs and one thru-hole on the 350 main board that the option mounting bracket will be attached to. See Figure 6-6 .
Remove the nuts from the three studs on the main board.
It may help to position the option mounting bracket over the 350 main board to locate the three studs and one thru-hole.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
3.
Install the nylon stand-off supplied with the option bracket kit into the thru-hole on the option bracket. See
Figure 6-6 .
The thru-hole is located on the option bracket, towards the center of the board, on the irregular flanged section
(a smaller hole than the others on the bracket) that would be positioned towards the power supply regulator (U11) with a flanged heat sink on it.
4.
Install the three hex standoffs onto the studs on the main board.
Tighten the stand-offs gently with a 6 mm hex nut driver.
Figure 6-6: Option Board Installation
(Stainless M350)
5.
If this is the first option card, attach the loose end of the cable to the serial I/O connector (J7) on the main board. Let the card gently hang over to the outside of the enclosure until mounting. J7 is a 10-pin polarized connector.
This step is not necessary if this is the second card installed.
6.
Position the nylon stand-off (attached to the bracket) into the hole on the main board while routing the threads of the other hex stand-offs through the holes on the bracket, while pressing down over the nylon stand-off until it snaps into place.
Line-up the three other hex stand-offs into the bracket thru-holes first before securing the nylon stand-off into the main board thru-hole.
7.
Secure the bracket into position with the hex nuts supplied with the kit. Do not over tighten.
8.
Place one set (four pieces) of the nylon sleeve type stand-offs onto the four studs of the option bracket. Place the Setpoint Control Module, component side up, onto the nylon sleeve stand-offs. Install four hex nuts and secure gently.
Select the four studs closest to the (J7) connector of the main board to add the four sleeve stand-offs. Be sure the cable is already attached to
108
C H A P T E R 6 : O P T I O N S
(J7) on the main board before installing the card. Also be sure the cable is attached to the right-most connector (J3) (as viewed from the component side of the option board). The second connector (J1) is for
‘daisy-chaining’ another option card. The additional mounting hardware is supplied with the option bracket kit. This hardware should be saved for future use if not being used.
9.
Route the analog cable through the available strain-relief. Make sure to connect cable conductors to the proper terminals before closing the unit.
10.
Reinstall the back cover. Tighten the eight screws securely to create a good seal. Be sure to avoid ‘pinching’ the cable between the housing halves.
Table 6-4: Setpoint Output Specifications (24350B-100C0)
Characteristic
Operating Voltage Range (47-63 Hz)
Max Load Current
Min Load Current
Limits
20-280 VRMS
1 Amp RMS
0.5 mA RMS
Min. Off-State Impedance
Max Surge Current
80K Ohms
24 Amp peak
Table 6-5: Setpoint Control Connections (24350B-100C0)
3
4
5
6
Pin
1
2
Connection Name Description
Line 1
Load 1
Line 2
Load 2
Line 3
Load 3
Line voltage in for setpoint 1.
Voltage out for setpoint 1.
Line voltage in for setpoint 2.
Voltage out for setpoint 2.
Line voltage in for setpoint 3.
Voltage out for setpoint 3.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Place this label above the setpoint card knockout (die cast).
(Stainless steel model) Cut off the text “SETPOINT OUTPUTS” from the label and place it on the connector shown in Figure 6-7 (apply to the area just under the field external wire terminals).
Table 6-6: Setpoint Output Specifications (24350B-100C1)
Characteristic
Operating Voltage Range (20-500 Hz)
Max Load Current
Min Load Current
Min. Off-State Impedance
Max Surge Current
Limits
20-280 VRMS
1 Amp RMS
5 mA RMS
220K Ohms
20 Amp peak
Table 6-7: Setpoint Control Connections (24350B-100C1)
3
4
5
6
Pin
1
2
Connection Name
Line 1
Load 1
Line 2
Load 2
Line 3
Load 3
Description
Line voltage in for setpoint 1.
Voltage out for setpoint 1.
Line voltage in for setpoint 2.
Voltage out for setpoint 2.
Line voltage in for setpoint 3.
Voltage out for setpoint 3.
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C H A P T E R 6 : O P T I O N S
Place this label above the setpoint card knockout (die cast).
(Stainless steel model) Cut off the text “SETPOINT OUTPUTS” from the label and place it on the connector shown in Figure 6-7 (apply to the area just under the field external wire terminals).
Table 6-8: Setpoint Output Specifications (24350B-100C2)
Characteristic Limits
Operating Voltage Range 3-60 VDC
Max Load Current
Min. Off-State Impedance
Max Surge Current
2 Amp
100M Ohms
2.4 Amp
Table 6-9: Setpoint Control Connections (24350B-100C2)
Pin
1
2
3
4
5
6
Connection Name
Line 1
Load 1
Line 2
Load 2
Line 3
Load 3
Description
Line voltage in for setpoint 1.
Voltage out for setpoint 1.
Line voltage in for setpoint 2.
Voltage out for setpoint 2.
Line voltage in for setpoint 3.
Voltage out for setpoint 3.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Place this label above the setpoint card knockout (die cast)
(Stainless steel model) Cut off the text “SETPOINT OUTPUTS” from the label and place it on the connector shown in Figure 6-7 (apply to the area just under the field external wire terminals).
Figure 6-7: Wire the option connector in accordance with the label (left to right).
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C H A P T E R 6 : O P T I O N S
S ETPOINT B OARD D IAGNOSTIC AND T EST P ROCEDURES
!
This test procedure affects the setpoint output. Be sure to disconnect all peripheral devices attached to the setpoint option card.
i
Test Equipment needed: Load device with power source.
To test the setpoint option card:
1.
Enter the Setup Mode (see Setup Mode on page 19).
Chngs Poss!
P110.-- ~ F.S.= ~ 100.00
2.
Key in 62001 [SELECT] .
Test ~ Setpt
Load Device Inactive
3.
Attach the load and power source in series with Setpoint 1 contacts.
4.
Press [
8
] to activate only output #1.
Test ~ Spt 1
Load Device Active
5.
Attach the load and power source in series with Setpoint 2 contacts.
6.
Press [
8
] to activate only output #2.
Test ~ Spt 2
Load Device Active
7.
Attach the load and power source in series with Setpoint 3 contacts.
8.
Press [
8
] to activate only output #3.
Test ~ Spt 3
Load Device Active
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
RS-485 N
ETWORKING
The M350 controller supports address recognition for multi-drop communications. This section describes the installation of the RS-485 network option. Firmware revision 450350-01013 or later is required for
RS-485 operation. For setup and operation information, see page 79.
!
The Model 350 contains components which could be damaged by
Electrostatic Discharge (ESD) if serviced improperly. Use proper ESD precautions (wear a wrist strap connected to ground, use grounded work stations, etc.) when opening the enclosure.
High voltages may exist within the enclosure! To prevent the risk of electrical shock, ALWAYS unplug the M350 when opening the enclosure.
Installation and servicing of the M350 should be performed by authorized and qualified service personnel only.
Never connect or disconnect option board cables while the indicator is powered. Doing so may result in circuit board damage.
To install the RS-485 Network Option (350 die cast model):
1.
Open the indicator.
Remove the four screws from the back of the unit.
It may help to remove the swivel bracket, if installed.
Remove the rear cover.
2.
Remove the U6 IC from its socket.
3.
Remove the white wire jumper.
4.
Snap the plastic spacers into the three mounting holes.
5.
Gently press the option board into the socket.
6.
Reinstall the back cover.
Tighten the screws to at
Figure 6-8: RS-485 Installation
(Die Cast Model)
114
C H A P T E R 6 : O P T I O N S least 8 in/lb torque.
7.
Place the included sticker over the rear connector sticker RS232.
To install the RS-485 Network Options (350 Stainless Model):
1.
Open the indicator.
Remove the eight screws from the back of the unit and remove the cover.
2.
Apply the included sticker to the J6 com port. The label will go over the silk screen on the board.
3.
Remove the U6 IC from its socket.
4.
Remove the white wire jumper.
5.
Snap the plastic spacers into the three mounting holes.
6.
Gently press the option board into the socket.
7.
Reinstall the back cover.
Tighten the eight screws securely to create a good seal.
Figure 6-9: RS-485 Installation
(Stainless Model)
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
N ETWORK C ONNECTIONS
Apply the supplied label over the appropriate COMM PORT pin designations.
On the stainless steel enclosure, apply the label marked M350 SS to the main board (J6). Position the label so the REM (remote) on the main board is covered with the REM (remote) of the supplied label. The new label will redefine all of the other pin designations.
On the die cast enclosure, apply the label marked M350 STD to the outside of the enclosure. The supplied label RS485 COMM should completely cover the RS232 COMM portion of the factory installed label.
Place this label over the COMM PORT pin designations.
H ALF D UPLEX (2WIRE )
Installing jumpers 1, 2 and 4 on the RS-485 option board electrically connects pin RX B(+) to pin TX B(+), and pin RX A(-) to pin TX A(-) on the option board. This effectively provides two + and two - pin connections, enabling easy connection of network lines in parallel from device to device without having to position two wires into the same lever socket. A B(+) line from each device on the network should be connected in parallel to the next device on the network. This is also true for all A(-) lines.
The units inside the two end-points of the network loop will utilize both
A(-) pin connections and both B(+) pin connections. The units at the endpoints of the network will utilize only one A(-) pin connection and one B
(+) pin connection.
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C H A P T E R 6 : O P T I O N S
F ULL D UPLEX (4WIRE )
Removing jumpers 1, 2 and 4 on the RS-485 option board requires that the transmit and receive lines be wired independently of one another. The RX
B(+) and RX A(-) receive lines must be wired in parallel to the next device’s RX B(+) and RX A(-) receive lines , and the TX B(+) and TX A(-
) transmit lines must be wired in parallel to the next device’s TX B(+) and
TX A(-) transmit lines.
In order to connect network lines in parallel from device to device it is necessary to position two wires into the same lever socket. This requires that the wire used to build the network be 24AWG or smaller to allow both wires to fit into the same lever socket.
B OTH H ALF D UPLEX AND F ULL D UPLEX
The network boards on both end-points should install jumper 3 on the RS-
485 option board to engage the 120
Ω
termination resistor (R8). The boards between the two end-points should remove jumper 3 on the RS-485 option board.
The isolated ground (ISO GND) should be connected in parallel from unit to unit. A shielded twisted two pair cable is recommended throughout the network.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Figure 6-10: Half Duplex Wiring Schematic
118
C H A P T E R 6 : O P T I O N S
Figure 6-11: Full Duplex Wiring Schematic
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
20
M
A C
URRENT
L
OOP
O
PTION
Description : This option will convert the comm port of the indicator to an
20 mA current loop instead of an RS-232. This is a digital communication signal and should not be confused with a 4 to 20-mA (or 0-20 mA) which are analog output signals. The intended use is primarily printers and scoreboard displays.
Mounting/Installation: This option will mount into the socket for the comm port RS-232 chip on the main board. This option will exclude the use of the RS-485 option board. (I.e. only the RS-485 OR the 20 mA option can be installed into an indicator). Three snap-in stand-offs are included with the board to secure it to the main board beneath it.
I
NSTALLATION
:
1.
Open the indicator and gain access to the main board.
2.
Remove the RS232 IC from its socket. (See table for location)
3.
Remove the white wire jumper. (See table for location)
4.
Snap the plastic spacers into the three mounting holes.
5.
Gently press the option board into the socket.
6.
Apply the proper portion of the included sticker to the COM port. The label will either go over the silk screen on the board or on the rear cover. (See table for location)
7.
Reassemble the indicator.
Location of Components to Remove
M350 Diecast M350SS
RS232 IC
Jumper
Label Location
U6
E2
Rear Cover
U6
E2
J6
B I DIRECTIONAL
Both the transmit output and the receive input of the indicator are available as 20 mA signals. None of the handshake signals are supported for the 20-mA current loop operation.
B AUD
Only baud rates of 9600 baud and less are supported.
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C H A P T E R 6 : O P T I O N S
A CTIVE /P ASSIVE
The Tx output may be used as an active or passive output from the indicator. Either active or passive is chosen depending upon which terminals are used for the connections. In active mode the indicator supplies the current. In passive mode, the external device supplies the current. The Rx input is available in passive mode only.
I SOLATION
The input and output are electrically isolated from the main board as well as earth ground and each other, for both passive and active modes of operation. Isolation is a minimum of 1000v.
M
AX
V
OLTAGE
Active mode Tx current loop provides a driving voltage of 12v. This will allow 20 mA current flow with up to a 600 ohm load. Passive mode will work with an external driving voltage of up to 50v.
C ONNECTIONS
The field connections to the 20 mA circuitry will be made at the main board’s comm connector, i.e. the lever connector on the ‘60-Series’ products and the M350 Stainless Steel version and at the ‘D’ connector on the M350 Zinc Die Cast unit. A 3-part label is supplied with the option to re-label the connections on the main circuit board. The appropriate part of this label should be applied over the existing Comm port markings on that indicator. Below is a copy of the label drawing.
C ABLE
The length for the current loop is 1000 ft. maximum. This is for the entire loop, not from device to device. Example: 1 transmitter and 1 receiver can have a maximum of 500 ft. of 2 conductor cable between them.
Place this label over the COMM PORT pin designations.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Table 10: Label Terminology
Indicator
350 SS &
ZDC
TRANSMITTER CONNECTIONS
Indicator Transmitter
Output
350 SS &
ZDC
TX OUT
Transmit current input, Active
TX ACTIV
RECEIVER CONNECTIONS
Transmit current input,
Passive
TX PASS
Receiver current output
RX PASS
Receiver current input
RX IN
C ONNECTED D EVICES
While 20 mA current loops can allow for more than one transmitter and/or receiver, the indicator and/or option board do not include any address recognition or collision avoidance and/or detection to promote this usage. If the 20-mA loop is intended to be used in this manner, proper planning for these issues is required .
Table 11: Connecting to External Devices
Model 350
Passive 20 mA
Output
Typical Installations
External Device
TP RX+ Active 20 mA Input
Passive 20 mA Input
TXO
RXI
RX
RX-
RX+
RX-
Active 20 mA Output
Active 20 mA
Output
TXO
TA
RX+
RX-
Passive 20 mA Input
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C H A P T E R 6 : O P T I O N S
B
ATTERY
P
OWER
S
UPPLY
The Battery Module gives the M350 portability, providing an M350 with an LCD display and one loadcell 20 hours minimum battery life, or an
M350 with an LED display and one loadcell 8 hours minimum battery life.
This section covers the battery connections on the M350 main board, the installation of the battery option board, and the battery
M
OUNTING
The circuit board and battery fit inside the die cast and stainless steel 350 enclosures. The circuit board acts as the hold down for the battery in both enclosures. Please refer to Figure 6-12 for installation instructions for the
M350 Stainless Steel Enclosure, or Figure 6-13 for installation instructions for the M350 Die Cast Enclosure.
i
Installing the battery option prevents installation of analog or setpoint options.
!
Review the connection diagrams thoroughly before installing the cable that connects the M350 main board to the option board. DAMAGE TO THE
OPTION BOARD OR INDICATOR CAN RESULT FROM
IMPROPER INSTALLATION .
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Figure 6-12: Battery Option Installation (Stainless Steel Enclosure)
124
C H A P T E R 6 : O P T I O N S
Figure 6-13: Battery Option Installation (Die Cast Enclosure)
125
3 5 0 D I G I T A L W E I G H T I N D I C A T O R
P IN D ESIGNATIONS
See Figure 6-14 for 350 main board battery connections (marked J9 for the stainless enclosure, and J3 for the die cast enclosure).
PIN
+
DESCRIPTION
Positive terminal (VDC signal input)
Negative terminal (VDC signal input)
L Low battery indicator terminal (TTL output - +5V OK, 0V Lo Bat)
S Shutdown
NOTE: Earlier die cast model’s main board may have only 2 or 3 pins
(no “L” or “S” pins).
Figure 6-14: M350 (Stainless),
Main Board Battery Connection
(J3) on Die Cast Model
ON/OFF S WITCH
The on/off switch for the M350 die cast is a rocker-type switch that mounts in the center rectangular hole punch-out. The on/off switch for the M350 stainless is a toggle-type (washdown type) switch that replaces one of the available enclosure strain reliefs. The switch is soldered to the board
(diecast) or on a cable (stainless).
The M350 will immediately switch to battery operation when AC power is interrupted if the switch is in the ON position. Placing the switch in the
OFF position prevents the battery from running down when AC power is removed. The battery will be charged whenever there is AC power to the
M350, regardless of the switch position.
I NSTALLING THE O N /O FF S WITCH ON O LDER M350 S TAINLESS S TEEL
I NDICATORS
The 24350B-121B0 kit included a stainless steel washer and a rubber washer to allow mounting of the ON/OFF switch in 44-25-34840 revision
126
C H A P T E R 6 : O P T I O N S
A stainless steel enclosures. The switch was mounted in one of the holes for a PG9 size strain relief. The washers were used because the switch barrel diameter was much smaller than the hole diameter. The revision B enclosures have a PG7 size strain relief hole which allows mounting of the switch without the washers. Current M350 production has switched to the revision B enclosures. The washers are not included in the version 2 option kits for this reason. If you are retrofitting an older M350 Stainless Steel
Indicator, please contact your sales representative to get one each of the following GSE part numbers:
•
36-20-2450 Rubber washer, 0.49 ID x 1.06 OD x 0.093 thick
•
36-20-2455 Stainless washer, 0.5 ID x 1.125 OD x 0.062 thick
B ATTERY C HARGING
If needed, the battery will always be charging when the unit is plugged in, regardless of the switch position. Typically, it takes four hours to fast charge a fully discharged battery.
Battery voltage is monitored to provide a fast charge then a continuous trickle charge to maintain the battery while not in use.
O VERCHARGE P ROTECTION
The battery state is monitored by the charging circuit to prevent overcharge and provide proper charge termination. Overcharging is also prevented through temperature sensing.
Battery voltage is monitored during charging to ensure a 100 percent capacity charge. The circuitry includes a safety timer to stop battery fast charging after 264 minutes.
T EMPERATURE S ENSING
If the ambient temperature sensor RT1 on the board is colder than 10 degrees C, the battery will trickle charge and not enter fast charge until the temperature rises above 10
°
C (50
°
F).
If the battery temperature sensor (connected between battery – and
THERMISTOR) is warmer than 60
°
C (140
°
F), the charger will stop fast charging and revert to trickle charging. A fast charge cannot happen again until the battery has cooled and the unit is reset by turning off the ON/OFF switch and interrupting the AC power to the M350.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
L OW B ATTERY I NDICATION
The Low Battery indication occurs when the battery is discharged below
11.4 VDC. Parameter 426 enables or disables the low battery indication.
Low battery will be indicated continuously if this feature is enabled without the battery option installed.
D
ISPLAY
I
NDICATION
An M350 with LED display will flash “LoBat” on the display as a warning when the battery is low. An M350 with LCD display will turn on the square indicator between the MOTION and GROSS indicators on the bottom of the display. LOBAT is written above the indicator on the LCD lens.
R EQUIRED H ARDWARE
You must have the following hardware in order to use low battery indication:
•
M350 Diecast:
PC871B Main Board (4 positions on J3)
450350-01006 Revision 6 EPROM (or newer)
•
M350 Stainless:
PC891A Main Board (J3 3 position)
PC909 Main Board (J3 4 position)
450350-01006 Revision 6 EPROM (or newer)
D
EAD
B
ATTERY
S
HUTDOWN
The battery option disconnects battery power to the M350 before erratic operation can occur. The shutdown occurs at a battery voltage of 10 VDC.
The switch must be clicked from ON to OFF to ON again to activate battery power after it has shut down. This feature is part of the circuitry on the battery option board. The M350 Main Board type and EPROM version do not affect its use.
A UTOMATIC S HUTDOWN
The Battery Option System Version 2 has an automatic power off feature that is enabled by parameter 427. This feature allows the M350 to shut itself off using a programmable time period of inactivity on the scale. The choices for the time period are in minutes: 0.5, 1, 2, 3, 4, 5, 10, 15, 20, 25,
30, 35, 40, 45, and 60.
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C H A P T E R 6 : O P T I O N S
You must have the following hardware in order to use the auto power off feature:
•
M350 Diecast:
PC871B Main Board (J3 4 position)
450350-01006 Revision 6 EPROM (or newer)
•
M350 Stainless:
PC909 Main Board (J3 4 position)
450350-01006 Revision 6 EPROM (or newer)
Version 1 kits (GSE P/N: 24350B-120B0-- Zinc Die Cast Model and GSE
P/N: 24350B-121B0-- Stainless Steel Model) do not support automatic shutdown.
The original option kits included revision A of the battery option board,
PC894. This board did not have the automatic power off feature. The automatic power off feature cannot be added to this version of the option kit. All of the other features listed above will function with this version.
S
PLASH
G
UARD
P
ROTECTION
The GSE Dura-Shield (GSE part # 31-70-35578) provides front panel protection for a 350 stainless steel enclosure used in heavy washdown environments. A clear Lexan® cover, the GSE Dura-Shield adheres to the metal portion of the front panel and not to the display lens or keypad, shielding the 350 from the elements while leaving the display unobscured, the keys easily pressed. The Lexan® is abrasion and chemical attack resistant, and non-yellowing.
!
Use caution when installing any equipment into a washdown environment.
Be sure to use a pressure relief valve (PN# 44-30-5531).
I
NTERNATIONAL
T
RANSFORMER
- IEC
The Model 350 zinc die cast transformer (GSE P/N 20-20-35190) allows the 350 to run on overseas current. Mounting tabs and line cords provide installation flexibility, allowing easy mounting to walls, tables, shelves, etc.
129
3 5 0 D I G I T A L W E I G H T I N D I C A T O R i
Transformers are available for Zinc Die Cast models only.
S PECIFICATIONS
•
Operates on 230VAC input at 50 hz with an output of 20VAC @ 1
Amp max.
•
Cord length from transformer to indicator is six feet (two meters) and includes the standard 3-prong M350 input plug.
•
Cord length from the transformer to the IEC (male) plug end is another six feet ( two meters).
T RANSFORMERS A VAILABLE
•
Model 350 Zinc Die Cast Transformer (GSE part # 20-20-35190)
IEC
LINE CORDS
A
VAILABLE
•
GSE part # 22-30-1022 – for use in Australia, Argentina, New
Zealand, and China
•
GSE part # 22-30-1023 – for use in Chile and Italy
NOTE: The transformers can be ordered separately or with an instrument specified below:
•
Model 350 Zinc Die Cast LED Display (GSE P/N 200350-28010)
•
Model 350 Zinc Die Cast LCD Display (GSE P/N 200235-28020)
130
C H A P T E R 6 : O P T I O N S
131
7 C
HAPTER
7: T
ROUBLESHOOTING
This chapter contains error messages and information parameters, as well as information on setup parameter selections and A/D Calibration.
E
RROR
M
ESSAGES
The M350 utilizes the following types of error messages: Operational
Errors , Setup Mode Errors , Hardware Errors , Calibration Errors ,
Communication Errors , and Miscellaneous Errors .
O PERATIONAL E RRORS
Code02 Under Load. Input signal is less than negative full scale. Check load cell wiring. Verify correct capacity selection at P110.
Code03
Funct ~ Disbl
Code 04
Code 05
Over Load. Input signal is greater than positive full scale. Use same checks as “under load” above.
Attempted to perform a function disabled in the
Setup Mode.
The digits on the display have exceed the six digit display capacity.
Zero attempted beyond that allowed by P118.
Code 08
Tare ~ Error
Tare ~ GT FS
Delay
Delay ~ Abort
Input signal greatly exceeds the valid range. Check the load cell connection.
Negative tare attempted when disabled (P440 enabled).
Tare value greater than full scale capacity.
Indicates that a motion delay is in effect (zero, tare, etc.).
Acknowledges that a motion delayed function was aborted.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Print ~ Abort
Add ~ Load!
Out of ~ Range
SPtxx ~ Error
Need APS
Acknowledges that a motion delayed print request was aborted.
If displayed after performing a count sample, this message indicates that a larger sample size is required.
Attempted to enter a value beyond the allowable range.
A conflict occurred with a setpoint value entry
(example: target entry is less than preact). The digits ‘ xx ’ represent the last two digits of the setpoint parameter in error (example: SPt 5 ~
Error indicates a conflict at P5105, preact 1).
A setpoint start is initiated and the setpoint is based on quantity and no piece weight has been established
(start will not occur).
S ETUP M ODE E RRORS
Bad ~ Code!
An incorrect access code was entered.
Unit ~ Seald
Unit3-Ntep
Entry ~ Error
Need ~ Entry
Out of ~Range
Can’t ~ Set!
ResGT ~ 260E3
Access to the Setup or Calibration Mode was denied. Check the internal “YES/NO” program jumper.
Code 49.
Parameter 440 (NTEP) is enabled and parameter 152 (third unit) is set to an additional unit.
The third unit is not NTEP approved.
An invalid entry was made.
A numeric value was required before pressing [
8
] .
The entered value exceeded the allowable range.
Attempt to change a parameter that does not allow an entry.
The number of divisions exceeds 260000 (see P110,
P111).
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C H A P T E R 7 : T R O U B L E S H O O T I N G
ResGT ~ 25E3 The number of divisions exceeds 25000 (see P110,
P111).
ResLT ~ 100!
ResLT ~ 1 !!
SPtxx ~ Error
Prtcl ~ Error
The number of divisions is less than 100 (see P110,
P111).
Number of divisions is less than one (see P110,
P111).
A conflict occurred with a setpoint value entry
(example: target entry is less than preact). The digits ‘ xx ’ represent the last two digits of the setpoint parameter in error (example: SPt 5 ~
Error indicates a conflict P5105, preact 1).
Existing protocol is invalid. The following are not allowed:
−
P201 = 7 data bits, P202 = no parity, P203 = 1 stop bit
−
P201 = 8 data bits, P202 = even parity, P203 =
2 stop bits
− P201 = 8 data bits, P202 = odd parity, P 203 = 2 stop bits
H ARDWARE E RRORS
Code00 An EPROM problem detected during power-up (U2).
A-D ~ Bad!
Or Code17
Problem with A/D chip detected. Disconnect any options installed and re-power the unit. Options are connected to the same serial lines as the A/D so they may prevent it from working properly.
Deflt ~ A-D
Re- ~ Boot!
Chec ~ E2
Deflt ~ Setup
Bad A/D calibration values. Recalibrate A/D (see
A/D Calibration Procedure on page 146) .
EEPROM data could not be read. Attempting power-up reset.
EEPROM data error (U4).
An error occurred when reading setup data from the
EEPROM during power-up. All parameters are set to factory default.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
Ch.XXXX
E2 ~ Full!
A checksum error occurred during power-up. All anunciators are lit. The EPROM integrity test failed or is improperly seated.
The EEPROM setup exceeds the memory capacity.
NoSpc ~ Free!
The current setup exceeds the setup RAM capacity.
C ALIBRATION E RRORS
F.S. ~ TooHi The entered calibration weight will result in an overcapacity condition at full scale. Verify that the full scale (P110) and calibration weight value are correct.
F.S. ~ TooLo
Add ~ Load!
ReCal ~ ???
Entry ~ Error
The entered calibration weight will result in a full scale input signal less than the minimum allowed.
Verify that the full scale (P110) and entered weight value are correct.
The calibration weight is less than 0.1% of capacity.
More weight is required.
Repeat the cal. procedure for accuracy. This prompt appears when the calibration weight is less than 5% of capacity, or when the A/D coarse gain is adjusted.
An invalid entry was made.
C OMMUNICATION E RRORS
Par-Er The selected parity (P202) does not match that of the connected device.
Buf-Er
Bit-Er
The receive buffers capacity was exceeded. This indicates a handshaking problem. Check P204 and verify proper communication port connections.
The stop bit of a received character did not occur when expected. Verify that protocol (P200 – P204) matches that of the connected device.
136
C H A P T E R 7 : T R O U B L E S H O O T I N G
TrHold Data transmission is inhibited due to a deasserted handshake. Press [CLR] to abort transmission.
Check P204.
M ISCELLANEOUS E RRORS
T.X.YYYY
If catastrophic errors occur in the software, a trap error may occur and freeze the display with address information. (X = bank number and YYYY = the address of the trap error. Press any key five seconds after viewing message to reboot the unit).
V
IEWING
S
ETUP
While troubleshooting it may be helpful to view the setup parameter selections. This can be done using the procedure below (even with the internal program jumper in the “NO” position). Note that accessing the
Setup Mode in this manner will not permit parameter changes.
To view the setup parameter selections:
1.
From the Weigh Mode, press [ZERO] + [SELECT] .
Setup
Enter ~ Code!
2.
Press [ 8 ] .
-No- ~ Chgs!
P110.-- ~ F.S.= ~ 100.0
3.
Navigate the Setup Mode as described in Setup Mode on page 19.
To exit the Setup Mode:
1.
Press [ZERO] .
2.
Press [ 8 ] .
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
I
NFORMATION
M
ODE
P
ARAMETERS
A series of informational parameters are available beginning at P60000.
These parameters may be accessed from the Setup Mode, or from the
Weigh Mode as described below. Table 7-1 gives an explanation of each information parameter.
To access the informational parameters:
1.
Press [ZERO] + [SELECT] .
Setup
Enter ~ Code!
2.
Press [ZERO] [UNITS] [TARE] .
P60000 ~ E2Ins ~ 512
3.
Navigate the Setup Mode as described in Setup Mode on page 19.
As each information parameter is accessed, the parameter number is briefly displayed, followed by the parameter name, and finally the parameter value. To repeat the parameter number and name sequence, press
[UNITS] . To exit the information mode, press [ZERO] .
Table 7-1: Information Parameters
PARAMETER
60000
60001
60100
60101
60102
60200
60201
60202
60203
60204
61100
61101
61102
NAME
E2Ins
E2Fre
Total amount of EEPROM storage.
Amount of available EEPROM storage.
-GSE- ~ c1998 Copyright statement.
0350P ~ 01001 Firmware revision code.
02- 10 ~ 1998 Firmware date code.
b sn ~ 10001 Main circuit board serial number.
Audit ~ Trail
Euro ~ 00000
OIML (European) audit trail number (see
OIML Audit Trail on page 95).
i sn ~ 00000 M350 serial number.
Audit ~ Trail
CAL. ~ 00000
Audit ~ Trail
Setup ~ 00000
Load ~ Cell
0.00000
Cal ~ Factr
1.00000
Rezro ~ Load
0.00000
DESCRIPTION
Calibration audit trail number (see
Calibration Audit Trail on page 95).
Setup audit trail number (see Setup Audit
Trail on page 95).
Current mV/V output of the load cell.
Calibration factor for the load cell.
Amount of weight (in default units) zeroed through use of the [ZERO] key.
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C H A P T E R 7 : T R O U B L E S H O O T I N G
PARAMETER
61103
61104
61105
61106
61107
61110
6
61112
NAME DESCRIPTION
Zrtrc ~ Load
0.00000
Amount of weight (in default units) zeroed by the zero track feature since [ZERO] was last pressed.
CZero ~ 0P Coarse zero calculated during calibration.
Fine ~ Zero
Fine zero calculated during calibration.
1738
CGain ~ 50 Coarse gain calculated during calibration.
Fine ~ Gain
1.00000
Fine gain calculated during calibration.
Zero ~ Adj25
73741
6
Zero ~ Ad100
-21813
A/D compensation for coarse zero.
PARAMETER
61117
6
61120
61121
61200
61201
61202
61203
61204
61205
61206
62000
62001
62002
62003
NAME
AiN1 ~ NrOff
-11035
6
AiN8 ~ NrOff
-14800
DESCRIPTION
A/D non-ratio-metric offset compensation.
Vre f~ NrOff
-12739
10oFF
10Gn
0oFF
0Gn
4oFF
4Gn
Srln
Dsply ~ Test
8.8.8.8.8.8.
Spt 1 ~ Disbl
Spt 2 ~ Disbl
Spt 3 ~ Disbl
A/D reference voltage compensation.
Analog option 0 – 10V Zero offset value.
Analog option 0 – 10V Full scale gain value.
Analog option 0 – 20mA Zero offset value.
Analog option 0 – 20mA Full scale gain value.
Analog option 4 – 20mA Zero offset value.
Analog option 4 – 20mA Full scale gain value.
Analog option board serial number.
Display test. Press [
8
] to illuminate all segments. Continue pressing [
8
] to cycle through various patterns.
Allows setpoint status to be changed by pressing [
8
] while viewing this parameter.
Requires that setup was entered using the access code.
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3 5 0 D I G I T A L W E I G H T I N D I C A T O R
PARAMETER
62004
62005
62006
64000
64100
64101
64102
65001
65002
NAME
Analg ~ 0- 10v
Analg ~ 0-20A
Analg ~ 4-20A
Send ~ Setup
DESCRIPTION
Allows the analog output to be changed by pressing [
8
] . Output will toggle through 0,
25, 50 and 100 percent while viewing this parameter. Requires that setup was entered using the access code (see Analog Board
Diagnostic and Test Procedures on page
104).
Transmits all setup information out the communication port.
LnCnt ~ 0
ErCnt ~ 0
Received setup line count.
Received setup error count.
1stEr ~ None!
Parameter of the first setup receive error.
Deflt ~ All
Default All. Sets all parameters to factory default settings. Press [
8
] to initiate default.
Deflt ~ -CAL Same as above, except calibration is retained.
A/D C
ALIBRATION
P
ROCEDURE
The M350 Analog-to-Digital Converter (A/D) is calibrated at the factory to ensure a stable, linear response to the load cell signal. This calibration procedure calculates critical values that are permanently stored in parameters P61110 – P61121. The A/D calibration should not be confused with the standard weight calibration. It should never be necessary to recalibrate the A/D. However, if the values stored at parameters P61110 –
P61121 appear to be reset to 0.00000 and/or 1.00000, then A/D recalibration is necessary. Contact GSE Scale Systems or your local authorized GSE distributor for more information on this procedure
140
Your GSE Distributor is:
PART NUMBER: 39-10-34792
Public link updated
The public link to your chat has been updated.
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