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GSE-355
User Manual
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Holtgreven GSE-355 User Manual

GSE Model 350/355
DIGITAL WEIGH INDICATOR
Technical Reference Manual
Model 350/355
Technical Reference Manual
GSE 350/355 Digital Weigh Indicator Technical Reference Manual
Copyright © 2004 GSE Scale Systems. All rights reserved.
Published by:
GSE Scale Systems 42860 Nine Mile Road Novi, MI 48375 USA
Information in this Operation 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
GSE Scale Systems
42860 Nine Mile Road 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
Table of Contents
CHAPTER 1:INTRODUCTION..................................................................................................... 1
STANDARD FEATURES...................................................................................................................... 1
SPECIFICATIONS ............................................................................................................................... 1
ISPLAY........................................................................................................................................... 3
D
LED Display................................................................................................................................ 3
LCD Display ............................................................................................................................... 3
Annunciators ............................................................................................................................... 4
350 KEYPAD ................................................................................................................................. 4
Secondary Functions................................................................................................................... 4
355 K
EYPAD .................................................................................................................................... 5
STANDARD FUNCTIONS .................................................................................................................... 6
WEIGH MODE FUNCTIONS ............................................................................................................... 6
CHAPTER 2: INDICATOR INSTALLATION............................................................................. 8
MOUNTING....................................................................................................................................... 8
Desktop Mounting....................................................................................................................... 8
Panel Mounting........................................................................................................................... 8
Permanent Mounting .................................................................................................................. 9
Outline Drawings........................................................................................................................ 9
WIRING.......................................................................................................................................... 11
Load Cell Connections.............................................................................................................. 11
Serial Port Connections............................................................................................................ 11
Remote Key Connection............................................................................................................ 12
Power Connection..................................................................................................................... 13
CHAPTER 3: OPTION INSTALLATION .................................................................................. 15
MODEL 350/355 PERIPHERAL OPTIONS ......................................................................................... 15
SWIVEL BRACKET .......................................................................................................................... 16
ANEL MOUNT KIT ........................................................................................................................ 16
P A
NALOG CARD CONNECTIONS....................................................................................................... 18
Analog Board Diagnostic and Test Procedures ....................................................................... 20
NALOG OUTPUT SETUP................................................................................................................ 23
A A
NALOG OUTPUT CALIBRATION .................................................................................................... 24
Entering Analog Calibration Values ........................................................................................ 24
Analog Output Example............................................................................................................ 25
ETPOINT CARD CONNECTIONS ..................................................................................................... 26
S
Setpoint Board Diagnostic and Test Procedures...................................................................... 29
RS-485 N
ETWORKING ................................................................................................................... 30
Network Connections ................................................................................................................ 31
20 MA CURRENT LOOP OPTION..................................................................................................... 33
Installation:............................................................................................................................... 33
Bi-directional ............................................................................................................................ 33
Baud .......................................................................................................................................... 33
Active/Passive ........................................................................................................................... 33
i
Isolation .................................................................................................................................... 33
Max Voltage .............................................................................................................................. 34
Connections............................................................................................................................... 34
Cable ......................................................................................................................................... 34
Connected Devices.................................................................................................................... 34
BATTERY POWER SUPPLY .............................................................................................................. 35
Mounting................................................................................................................................... 35
Pin Designations....................................................................................................................... 36
ON/OFF Switch ........................................................................................................................ 37
Battery Charging ...................................................................................................................... 37
Temperature Sensing ................................................................................................................ 38
Low Battery Indication ............................................................................................................. 38
Dead Battery Shutdown ............................................................................................................ 38
Automatic Shutdown ................................................................................................................. 38
SPLASH GUARD PROTECTION......................................................................................................... 39
INTERNATIONAL TRANSFORMER - IEC .......................................................................................... 39
Specifications ............................................................................................................................ 39
Transformers Available ............................................................................................................ 39
IEC line cords Available........................................................................................................... 39
CHAPTER 4: CONFIGURATION............................................................................................... 40
ENTERING THE SETUP MODE (MODEL 350) ................................................................................... 40
ENTERING THE SETUP MODE (MODEL 355) ................................................................................... 41
SELECTING A PARAMETER ............................................................................................................. 41
CHANGING A PARAMETER VALUE ................................................................................................. 43
Selection Parameters ................................................................................................................ 43
KEY-IN PARAMETERS .................................................................................................................... 43
SAVING PARAMETERS .................................................................................................................... 44
FACTORY DEFAULT ....................................................................................................................... 46
LIST OF PARAMETERS .................................................................................................................... 47
Parameter Map Details............................................................................................................. 48
RESET TRANSMIT SELECTIONS ..................................................................................................... 53
P
CUSTOM TRANSMIT ....................................................................................................................... 55
Elements of a Custom Transmit ................................................................................................ 55
Writing a custom transmit ASCII text file................................................................................. 55
Accessing Setup and Clearing Existing Custom Transmit........................................................ 55
Entering ASCII Text.................................................................................................................. 56
Entering ASCII Control Codes ................................................................................................. 56
Parameter Selection Numbers .................................................................................................. 58
Exiting Setup Mode and Saving Changes ................................................................................. 59
PARTS COUNTING .......................................................................................................................... 59
ANALOG OUTPUT SETUP................................................................................................................ 60
ANALOG OUTPUT CALIBRATION .................................................................................................... 61
Entering Analog Calibration Values ........................................................................................ 61
Analog Output Example............................................................................................................ 62
S
ETPOINT SETUP ............................................................................................................................ 63
Activation Methods (General)................................................................................................... 63
ii
Pre-acts (General) .................................................................................................................... 64
Learn Feature (General)........................................................................................................... 64
Pause Feature (General) .......................................................................................................... 64
Changing Targets from the Weigh Mode (General) ................................................................. 65
Example (General).................................................................................................................... 65
Bargraph (General) .................................................................................................................. 66
FILL ............................................................................................................................................... 68
Activation Method (Fill) ........................................................................................................... 68
Pre-acts (Fill)............................................................................................................................ 68
Learn Feature (Fill).................................................................................................................. 69
Pause Feature (Fill).................................................................................................................. 69
Changing Targets from the Weigh Mode (Fill) ........................................................................ 69
Example (Fill) ........................................................................................................................... 69
ATCH ........................................................................................................................................... 69
B
Activation Method (Batch)........................................................................................................ 70
Pre-acts (Batch) ........................................................................................................................ 70
Learn Feature (Batch) .............................................................................................................. 70
Pause Feature (Batch) .............................................................................................................. 70
Changing Targets from the Weigh Mode (Batch)..................................................................... 70
Example (Batch)........................................................................................................................ 71
D
ISCHARGE.................................................................................................................................... 71
Activation Method (Discharge)................................................................................................. 72
Pre-acts (Discharge)................................................................................................................. 72
Learn Feature (Discharge) .......................................................................................................72
Pause Feature (Discharge).......................................................................................................72
Target Changes from the Weigh Mode (Discharge)................................................................. 73
Example (Discharge) ................................................................................................................ 73
BOTH ............................................................................................................................................. 73
Activation Method (Both).......................................................................................................... 74
Pre-acts (Both).......................................................................................................................... 74
Learn Feature (Both) ................................................................................................................ 74
Pause Feature (Both)................................................................................................................ 74
Target Changes from the Weigh Mode (Both).......................................................................... 74
Example (Both) ......................................................................................................................... 75
NDEPENDENT SETPOINT OPERATION............................................................................................. 75
I
Setpoint Activation (Independent)............................................................................................. 76
Changing Targets from the Weigh Mode (Independent) .......................................................... 76
Example (Independent) ............................................................................................................. 77
BARGRAPH SETUP (LCD) .............................................................................................................. 77
PERCENTAGE CHECK-WEIGHING ................................................................................................... 79
Setpoint Activation (Percentage Check-Weighing) .................................................................. 80
Changing Targets from the Weigh Mode (Percentage Check-Weighing) ................................ 80
Example (Percentage Check-Weighing)................................................................................... 81
ABSOLUTE CHECK-WEIGHING ....................................................................................................... 81
Setpoint Activation (Absolute Check-Weighing)....................................................................... 82
Changing Targets from the Weigh Mode (Absolute Check-Weighing) .................................... 82
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Example (Absolute Check-Weighing) ....................................................................................... 83
REMOTE KEY OPERATION.............................................................................................................. 83
REMOTE SERIAL OPERATION ......................................................................................................... 83
Display Capture Utility............................................................................................................. 84
TIME AND DATE SETUP (MODEL 350)............................................................................................ 84
TIME AND DATE SETUP (MODEL 355)............................................................................................ 86
RS-485 MULTI-DROP NETWORK SETUP AND OPERATION ............................................................. 86
Setup.......................................................................................................................................... 87
Operation .................................................................................................................................. 87
Network Protocol...................................................................................................................... 87
CHAPTER 5: CALIBRATION ..................................................................................................... 88
SETUP MODE CALIBRATION........................................................................................................... 88
FAST CALIBRATION........................................................................................................................ 88
ERFORMING CALIBRATION........................................................................................................... 88
P E
STABLISHING ZERO...................................................................................................................... 89
First Zero .................................................................................................................................. 89
Last Zero ................................................................................................................................... 91
False Zero ................................................................................................................................. 93
Only Zero .................................................................................................................................. 95
Reset Calibration ...................................................................................................................... 96
ESTABLISHING A SPAN .................................................................................................................. 98
EXITING CALIBRATION .................................................................................................................. 99
CHAPTER 6: LEGAL FOR TRADE ......................................................................................... 101
NTEP REQUIREMENTS................................................................................................................. 101
NTEP PANEL MOUNT REQUIREMENTS ........................................................................................ 101
OMIL REQUIREMENTS ................................................................................................................ 102
OTHER REQUIREMENTS................................................................................................................ 102
SEALING AND AUDIT TRAILS....................................................................................................... 103
Physical Seal........................................................................................................................... 103
Audit Trails ............................................................................................................................. 104
CHAPTER 7: TROUBLESHOOTING ...................................................................................... 106
ERROR MESSAGES ....................................................................................................................... 106
Operational Errors ................................................................................................................. 106
Setup Mode Errors.................................................................................................................. 107
Hardware Errors .................................................................................................................... 107
Calibration Errors .................................................................................................................. 108
Communication Errors ........................................................................................................... 108
Miscellaneous Errors.............................................................................................................. 108
IEWING SETUP ........................................................................................................................... 108
V I
NFORMATION MODE PARAMETERS ............................................................................................. 109
A/D C
ALIBRATION PROCEDURE................................................................................................... 111
iv
CHAPTER 1:INTRODUCTION
Thank you for selecting the GSE Model 350/355 Indicator. The Model 350 and Model 355 continue the GSE tradition of Excellence in Weighing and Counting Technology. A properly installed and maintained Model 350 or Model 355 will provide many years of reliable, accurate performance.
The chapters of this manual focus on various aspects of the Model 350/355:
Chapter 1: Introduction Features and Specifications. Chapter 2: Indicator Installation Mounting and wiring connections. Chapter 3: Option Installation Installing and setting up options. Chapter 4: Configuration Using the Model 350/355. Chapter 5: Calibration Calibrate the indicator to a scale. Chapter 6: Legal for Trade Troubleshooting help and error messages. Chapter 7: Troubleshooting Troubleshooting help and error messages.
Standard Features
The Model 350 and 355 include built-in functions that you can enable through the Indicator Setup. Refer to Chapter 4: 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
Specifications
PERFORMANCE
Full Scale (F.S.) Selectable 0 to 999,990 Resolution 20-bit A/D converter, 100,000d displayed
±500,000d internal
A/D Conversion 60 Hz Zero Track 0 – 100% of F.S. Operating Temperature -10°C to +40°C Units of Measure lb, kg, oz, g, lb oz
ELECTRICAL
Power Requirement 350 Zinc Die Cast Enclosure
1
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
350/355 Stainless Steel Enclosure Input (J10): 85 – 265VAC, 0.5A; 50/60 Hz (internal power supply version) Input (J3): 10 – 36VDC, minimum 0.8A w/no options or 1.25A w/options installed (internal power supply version)
Excitation Voltage 10 VDC Excitation Current 180 mA max. / (6) 350Ω bridge F.S. Signal Input 0.1 mV/V min – 20 mV/V max Signal Connection 4 lead or 6 lead with sense
PROCESS CONTROL
Outputs See OPTIONS Remote Input 1 momentary contact closure (100ms minimum) TARE, PRINT, ZERO
COMMUNICATIONS
Serial RS232 bi-directional serial port Data Output 14 selectable fixed-format transmissions or 1 custom format (programmable via RS232) Protocol Selectable Baud Rate 150 – 9600 bps
DISPLAY
LED 6-digit weight display, 0.8” (22mm) height 11 LED annunciators for operational status LCD 6-digit weight display, 1.0” (25.4mm) height
11 LCD annunciators for operational status Built in LCD status bargraph
ENCLOSURE
Zinc Die Cast Black powder coat paint, self-standing on flat surface Wall/Ceiling Mount Optional stainless steel swivel bracket Shipping Weight 7 lb (3 kg) Stainless Washdown stainless steel enclosure w/stainless steel swivel bracket (table, wall or
ceiling mount)
OPTIONS
Analog Output Module 0–10 VDC/5mA, 0–20mA/10V, 4–20mA/10V, electrically isolated, 16 bit
resolution with up to 10 updates per second response time, mounts internal to enclosure
Relay Output Module Three (3) solid-state 24–280 VAC, 1A with up to 10 updates per second response
ime, mounts internal to enclosure or three (3) 3– 60 VDC, 2A
2
Wall Mount Kit Swivel bracket/stand for zinc die cast enclosure Panel Mount Kit Mounts zinc die cast enclosure to user panel Cutout: 7.33” – 7.45”w x 5.25” – 5.37”h x 2.25”d
186.2 – 189.2mm x 133.4 – 136.4mm x 57.2mm Two Option Mount Kit Mounts up to two option boards inside the stainless enclosure Battery Power Supply Kits Two versions: one mounts inside the stainless steel enclosure, the other mounts
Inside the die cast enclosure
Splash Shield Durable adhesive plastic that adheres to the front surface of the stainless steel
enclosure model
20 mA Current Loop Enables the communication port to be a digital 20 mA current loop port.
Display
The Model 350 and Model 355 indicators are available with either a six digit, 7-segment green LED display, a six digit, 7-segment black LCD display or a 7-segment backlit LCD display. The Model 350 and Model 355 will display alphanumeric 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 DISPLAY
The LED display is a six digit, 7-segment bright green LED screen with 12 annunciators to show weight and status information. The SP1, SP2, and SP3 annunciators are red, green, and yellow. Also there is an annunciator for a third unit under kg. Place the third unit label above the third annunciator (the third unit is available on both the LED and LCD displays). See page 49 for third unit setup.
Figure 1: Model 350/355 LED Display
LCD DISPLAY
The LCD display is a six digit, 7-segment black LCD screen with 12 annunciators and a bargraph to show the operational status.
Figure 2: Model 350/355 LCD Display
3
ANNUNCIATORS
Annunciators provide mode and status information. When illuminated, they indicate the following conditions:
SP1 Setpoint #1 activated (relay 1 closed).
SP2 Setpoint #2 activated (relay 2 closed).
SP3 Setpoint #3 activated (relay 3 closed). ¼0» 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 Displayed value represents the current net weight.
QTY Displayed value represents the current piece quantity (Count).
lb The displayed value is represented in pounds.
kg The displayed value is represented in kilograms.
Oz, lb oz, g The displayed value is represented in either ounces, pound ounces or grams.
+ Lo - Illuminates when the battery reaches a low tolerance. LCD only
350 KEYPAD
The Model 350 offers 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.
A
Figure 3: Model 350 Keypad
SECONDARY FUNCTIONS
The Model 350 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.
Key Press WEIGH MODE Count Mode Setup Mode
2
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.
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.
4
Exits the Setup Mode and/or answers “NO” to query prompts and/or clears an entry in progress.
‘Scrolls’ through digits during data entry.
Advances cursor to next entry position and/or cycles prompts.
Key Press WEIGH MODE Count Mode Setup Mode
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.
1
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 auto-shutoff enabled).
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 auto-shutoff enabled).
 +  1 + 
+ 1
+
2 + 1
+ 2
Access Setup Mode. Access Setup Mode. No function.
No function. 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.
Turn off indicator by holding key for approximately 1 second.
Reverse character scroll during data entry.
No function. Clears any entry in progress.
Backspace – erases the right­most digit during sample entry.
Turn off indicator by holding key for approximately 1 second.
Reverse character scroll during sample entry.
Return to the previous setup parameter.
Backspace – erases right-most digit during data entry.
Turn off indicator by holding key for approximately 1 second.
Reverse character scroll during data entry.
355 Keypad
The Model 355 keypad performs different functions in the Weigh Mode, the Setup Mode, and the Calibration Mode. The number keys make entering a tare value or average piece weight easier.
B
ZERO PRINT
TARE
Figure 4: Model 355 Keypad
SELECT
UNITS
SAMPLE
ENTER
YES
5
123
45
7 8
0
6
9
CLR
NO
Key Press WEIGH MODE Count Mode Setup Mode
"
2
#
!
(
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. Performs an auto-tare function (if enabled) and/or accepts an entry in progress. If the tare weight is known, key in the value and press
#.
Toggles between display modes and/or restores power to the indicator (if auto-shutoff enabled).
Performs a sample. If a number is keyed in before hand, it will be used as the sample size. Accepts an entry.
Clears an entry in progress. Hold
this key on power-up to turn on the display regardless of P420.
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 auto-shutoff enabled).
Performs a sample. If a number is keyed in before hand, it will be used as the sample size.
Performs a quantity zero function and/or clears an entry in progress.
Exits the Setup Mode and/or answers “NO” to query prompts and/or clears an entry in progress.
‘Scrolls’ through digits during data entry.
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.
Accepts an entry.
Exits the Setup Mode and/or answers “NO” to query prompts and/or clears an entry in progress.
Standard Functions
The Model 350 and 355 include built-in functions that you can enable through the Indicator Setup. 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
Weigh Mode Functions
The Model 350 and 355 keypads have five primary Weigh Mode functions:
" Performs a gross zero and selects the gross mode. Initiates data transmission out the communication port.
6
2 Toggles the units of measure between lb, kg, g, lb oz, oz. # Tares any displayed weight and selects the net mode. ! Toggles the display between GROSS, NET, QUANTITY and setpoint TARGETS (if enabled).
7
(
)
(
)
CHAPTER 2: INDICATOR INSTALLATION
This chapter contains information necessary for proper installation of the Model 350 and Model 355. 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 Model 350/355 when opening the enclosure. Installation and servicing of the Model 350/355 should be performed only by authorized and qualified service personnel.
For information on installing options, see Chapter 3: Option Installation. For NTEP and OIML details, see Chapter 6: 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.
Mounting
The standard Model 350 zinc die cast enclosure is a NEMA1 (IP 20) equivalent. The Model 350/355 stainless steel enclosure meets NEMA 4X type specifications.
When choosing a mounting location for the Model 350 die cast, ensure that the unit is not installed in a washdown area or conductive dust environment.
DESKTOP MOUNTING
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.
PANEL MOUNTING
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 16 for more details.
PANEL
5.25” – 5.37”
133.4 – 136.4mm
7.33” – 7.45”
186.2 – 189.2mm
CUTOUT
8
PERMANENT MOUNTING
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.
Figure 5: Model 350 Zinc Die Cast with Optional Mounting Bracket
OUTLINE DRAWINGS
Figure 6: Model 350 Zinc Die Cast Front Dimensions
9
Figure 7: Model 350 Stainless Steel Dimensions
Figure 8: Model 355 Outline Drawing
10
Wiring
A description of all wiring terminals is included on the bottom label of the zinc die cast enclosure as shown in Figure 9.
Figure 9: Model 350 Zinc Die Cast Enclosure Wiring Label
LOAD CELL CONNECTIONS
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 route it through the strain relief supplied on the back of the internal power supply models (see Figure 10). Either four or six conductor cables can be used.
When using four conductor cables, (+ Excitation) must be connected together with (+ Sense), and (- Excitation) must be connected together with (- Sense) on the Model 350 die cast. Sense jumpers are standard on the Model 350 Stainless Steel (E3 and E4). Utilizing the (+) and (-) Sense leads of six conductor cables provides compensation
for variations in the excitation voltage due to resistance changes in the cable.
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.
Figure 10: Cable Tie on Die Cast & Connector (J8) on Internal Power Supply Models
SERIAL PORT CONNECTIONS
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 86. Use Table 1: Serial Port Connections 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 metal hood and a braided shield cable. Ensure that the braid makes good connection with the hood.
11
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 1: Serial Port Connections
Description
1 2 3 4 5 6 7 8 9
REM Remote Key REMOTE KEY RXD Receive RXD TXD Transmit TXD
+5V +5 VDC GND Digital Ground GND GND Digital Ground GND
RTS Request-to-Send RTS
CTS Clear-to-Send
PI Do Not Connect
Label
(Die cast encl. only)
VCC
CTS
Figure 11: 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.
REMOTE KEY CONNECTION
A remote key may be connected to the Model 350/355 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 12 for die cast, Figure 13 for stainless). A two-conductor shielded cable between 28 and 20 AWG is recommended. The input requires a contact closure from a push-button switch, a ‘dry’ relay contact, a photo-eye, and a proximity sensor or other such device. A closure initiates the operation specified at P800.
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
Do not apply an external voltage to remote key terminals! Only a contact closure is required to activate the remote key input.
12
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 12: Remote Key Connection
(Model 350 die cast)
Figure 13: Remote Key Connection
(Model 350 stainless and Model 355)
POWER CONNECTION
There are four ways to power the Model 350/355, 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.
120VAC WALL MOUNT TRANSFORMER
An external wall mount transformer is supplied with the die cast Model 350 for connection to 120VAC, 60Hz power.
To connect the transformer:
The Model 350/355 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 Model 350/355 from a ‘sleep’ mode.
Do not cut the ground prong off the wall mount transformer!
Pin 1 Pin 2 Pin 3 Range
DC
AC L GND N
+
N/C
-
12-36 VDC
12-26 VAC 50/60 HZ
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.
XTERNAL AC OR DC POWER SUPPLY
E
The Model 350/355 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 Model 350 die cast unit rear connector with bare wires on the other end.
Figure 14: Model 350/355 Power Connections
13
INTERNAL AC OR DC POWER SUPPLY
The Model 350/355 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 15. The ground wire is connected to a stud on the enclosure.
The Model 350/355 internal power supply model may be powered by an external 10-36 VDC power source connected to (J3) on the main board (also see Battery Power Supply on page 35). The power supply should have a minimum current rating of 800mA with no options installed, a minimum current rating of
Figure 15: Model
350/355 Internal Power
Supply Model AC Connections (J10)
Figure 16: Model 350/355 Internal Power Supply Model DC Connections (J3)
1.25A with options installed.
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.
Pin 1 Pin 2 Pin 3 Pin 4 Range
DC
+ -
Low Batt
Shut
Down
12-36 VDC
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CHAPTER 3: OPTION INSTALLATION
The capabilities of the Model 350 can be expanded with the use of one or more option kits. This chapter provides installation procedures for these options.
Model 350/355 Peripheral Options
The following options are available for the Model 350:
• 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 Model 350 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 Model 350 to run on overseas current.
• 20 mA Current Loop (GSE P/N 24660B-404A0)
Provides a digital 20 mA current loop.
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Swivel Bracket
The Model 350/355 has an optional stainless steel swivel bracket for secure mounting to desks, tabletops or walls. See the Mounting section beginning on page 8 for instructions on mounting the Model 350/355 using the swivel bracket.
Figure 17: 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 17 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.
Panel Mount Kit
The Panel Mount Kit provides an easy way to mount the indicator into new or existing cabinetry. See Figure 18 for detailed instructions on panel mounting the Model 350/355. See also NTEP Panel Mount Requirements on page 101 for additional panel mounting NTEP requirements.
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Figure 18: Model 350 Panel Mount Installation (Die Cast Model)
o INDICATOR CAN BE INSTALLED USING EITHER BUTTON OR HEX HEAD SCREWS. BOTH TYPES OF SCREWS ARE
SUPPLIED WITH THE KIT.
o APPLY PRESSURE ON MOUNTING BRACKETS IN DIRECTIONS SHOWN. THIS WILL ENSURE THE INDICATOR IS DRAWN
FIRMLY AGAINST THE PANEL.
o DRILL 1/16 (.0625) DIA. PILOT HOLES FOR PINS. o ADD INDICATOR'S SERIAL NUMBER TO THE LABEL.
To install the Model 350 Panel Mount Kit:
1. Unpack the Panel Mount Kit.
Be sure that all parts shown in Figure 18 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.
4. Place the Model 350 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 over-tighten. Now thread the lock-nuts down until they are snug against the bracket.
17
Analog Card Connections
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.
To install the Analog Output Module (350 die cast model):
See Analog Output Setup on page 23 for analog output software configuration details.
The Model 350/355 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 Model 350/355 when opening the enclosure. Installation and servicing of the Model 350/355 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.
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.
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 ‘daisy­chaining’ 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.
Figure 19: Option Board Installation (Die Cast Model 350)
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To install the Analog Output Model (350 Stainless Model and 355):
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
20. 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 thru-hole on the option bracket. See Figure 20.
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 10­pin polarized connector.
This step is not necessary if this is the second card installed.
Figure 20: Option Board Installation
(Stainless Model 350/355)
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.
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.
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Table 2: Analog Output Connections
Pin Connection Name Description
1 Earth Ground Non-isolated earth ground (future use). 2 + 5 VDC Isolated 5 volt source (future use). 3 Isolated Ground Provides an isolated ground connection. 4 Vout Used for the 0-10 VDC analog signal output. 5 Isolated Ground Provides an isolated ground connection. 6 Iout Used for 4-20 or 0-20 mA analog signal output.
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).
ANALOG BOARD DIAGNOSTIC AND TEST PROCEDURES
The following test procedures affect the analog output signal levels. Be sure to disconnect all peripheral devices attached to the analog option card.
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.
This test procedure requires that the initial analog option calibration procedure has been completed
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To test the 0-10v output mode:
1. Enter the Setup Mode (see Setup Mode on page 40).
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
Test ~ 0-10v
Per P176
4. Press
0-10v ~ 0P
0.00 VDC
5. Press
0-10v ~ 25P
2.50 VDC
6. Press
0-10v ~ 50P
5.00 VDC
7. Press
0-10v ~ 75P
7.50 VDC
8. Press
0-10v ~ 100P
 !.
1 or ( to set the output to 0%.
1 or ( to increase the output to 25%.
1 or ( to increase the output to 50%.
1 or ( to increase the output to 75%.
1 or ( to increase the output to 100%.
1.00 VDC
To test the 0-20mA output mode:
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 40).
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
Test ~ 0-20A
Per P176
 ! (see Setup Mode on page 40).
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