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Hardy Instruments A Series User Manual
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Chapter 3 - I
nstallation
3-5
r
eceiving information fr
om the load cells or if the
r
elays do not
operate corr
ectly
.
FIG
. 3-4 HI 17
56-WS WITH DOOR
OPEN
FIG
. 3-5 HI
1756-2WS WITH DOO
R OPEN
22
24
Table of Contents
Default Chapter
3
Table of Contents
3
About this Manual
9
Overview
9
Description
10
C2 Calibration
11
Excitation Monitor
11
Digital Volt Meter (DVM) - Optional
12
Return to Zero Test - Optional
12
Weighing System Tests - Optional
12
Waversaver
11
Auto Zero Tracking
13
Chapter 2 - Specifications
15
A Brief Description of Chapter 2
15
Specifications for a Standard HI 1756-WS (-2WS) Weigh Scale Module
15
Channels
15
Conversion Rate
15
Averages
15
Resolution
15
Input
15
Non-Linearity
15
Waversaver
15
Common-Mode Voltage Range
16
Backplane Input Voltage
16
Backplane Current Load
16
Backplane Power Load
16
C2 Calibration Input
16
Cable Lengths
16
Load Cell Excitation
16
C2 Calibration Output
16
Environmental Requirements
16
Temperature Coefficient
16
Optional Equipment
17
1756 Rta
17
RTA Cable Assemblies
17
HI 215IT Series Junction Box
17
Default Parameters
17
Chapter 3 - Installation
19
A Brief Description of Chapter 3
19
Unpacking
19
Controllogix Processor or Allen-Bradley Remote Rack
19
Removing the Module from the Chassis
21
Installing the Module I/O Connector
22
About the Module I/O Connector3-4
22
Load Cell Wiring Diagrams
24
Industry Standard Load Cells
24
Hardy Load Sensor with C2
24
Industry Standard Load Cells Wiring Diagram
24
Hardy Load Sensor/C2 Wiring Diagram
24
HI 1756 Remote Terminal Assembly (HI 1756-XX
25
Remote Terminal Assembly
25
Rta with Jumpers for Load Cells Without Sense Lines
25
RTA Cable Assembly
26
Rta Cable Assembly - Hi 1756Ws Single Channel
26
Rta Cable Schematic - Hi 1756Ws Single Channel
26
Rta Cable Assembly - Hi 17562Ws Dual Channel
26
Hardy HI 215IT Junction Box
27
Hardy Hi 215It Junction Box Wiring Diagram
27
Chapter 4 - Setup4-1
29
A Brief Description of Chapter 4
29
Power Check
29
Chapter 4 - Setup
29
Leds
30
Scale Data Leds
30
OK Module Status LED
30
Reset Module Message
30
Setting up Communications between the PLC and the HI 1756-WS (-2WS) Weigh Scale Module
30
Communication Configuration Dialog Box
31
Configuration Parameters for the HI 1765-WS Module
32
Input Data
34
Statusword
34
Discrete Data
35
Parameters for the HI 1756-WS (-2WS) Module
36
Parameters Dialog Box
38
Parameters Dialog Box (Cont'D)
38
Commands
39
Zero Command (ZEROCMD)
40
Tare Command (TARECMD)
40
Write Non-Volatile Command (WRITENONVOLATILE)
41
Reload Non-Volatile (RELOADNONVOLATILE)
41
Enable Calibration Button Command (ENABLEBUTTONCMD)- -4-13
41
Set Default Parameters (SETDEFAULTPARAMS)
41
Chapter 5 - Calibration
41
Cal Low Command (CALLOWCMD)
42
Cal High Command (CALHIGHCMD)
42
C2 Cal Command (C2CALCMD)
42
Read Weight Cal Command READWEIGHTCAL
43
Perform Integrated Technician Tests (WEIGHSYSTEST)
43
Structure (ITECHTEST)
45
Read C2 Sensor Serial Number (READC2SERIALNUM)
45
Read Status of Module (GETSTATUS)
46
Write Parameters (WRITEPARAM)
46
Read Parameters (READPARAM)
47
Read Live Weight (READLIVEWEIGHT)
47
Command Table
47
Output Table
48
Error Code List
49
Timed out Commands
49
Return Codes
49
Calibration Setup Procedures
50
Setting the Unit of Measure
50
Setting the Motion Tolerance Value
50
Setting the Zero Tolerance Value
50
Setting the Auto Zero Tolerance Value
50
Setting the Number of Readings Averages
50
Setting the Span Weight Value
51
Setting the WAVERSAVER® Value
51
Chapter 5 - Calibration
53
A Brief Description of Chapter 5
53
Pre-Calibration Procedures
53
Electrical Check Procedures
54
Load Cell/Point Input/Output Measurements
54
Properly Installed Load Cell W/No Binding
54
Load Check
55
C2 Calibration
56
The Button" C2 Calibration - Hi 1756-Ws
57
The Button" C2 Calibration - Hi 1756-2Ws
57
C2 Calibration Using Ladder Logic
58
Hard Calibration
58
Hard Calibration Procedures
58
Hard Calibration Ladder Logic Example
59
Chapter 6 - Operating Procedures
61
A Brief Description of Chapter 6
61
Input Data
61
Communication Configuration Dialog Box
61
Discrete Data
62
Chapter 7 - Troubleshooting
63
Scale LED Stays off When Performing a C2 Calibration with
63
Scale LED Is Flashing Red
63
Return Codes
63
Mechanical Inspection
67
Load Sharing and Load Sensor Checkout
68
Guidelines for Instabilities on Formerly Operating Systems
69
Electrical
70
Mechanical Stability and Configuration Settings
71
Index
73
Glossary of Terms
81
4
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Hardy Instruments A Series Specifications
General
Brand
Hardy Instruments
Model
A Series
Category
Control Unit
Language
English
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