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Installation
CAS User’s Guide 13
General Wiring Recommendations
Use the cables below or their equivalent. For best results, use
appropriate materials, proper installation techniques and the correct
equipment. For example, choose wire type by function, installation
requirements, and the likelihood of mechanical or electrical problems at
your installation.
WARNING
Never wire bundles of low power Watlow Anafaze circuits next
to bundles of high power AC wiring. Always physically sepa-
rate high power circuits from the monitor. If possible, install
high voltage AC power circuits in a separate panel.
•
Use stranded wire. (Use solid wire for fixed service only).
•
Use #18 or #20 AWG wire. Larger or smaller sizes may be difficult
to install, may break easily, or may cause intermittent connections.
•
Use shielded wire. (The electrical shield helps protect the CAS from
electrical noise.) Connect one end of the input wiring shield to the
CAS panel's 120 Vac panel ground, and connect one end of the out-
put wiring shield to the CAS panel's 120 Vac panel ground. If these
instructions do not apply to your system, contact Watlow Anafaze
for more information.
For additional noise suppression measures, see Noise Suppression.
Function MFR P/N
No. of
Wires
AWG
Analog inputs Belden #9154
Belden #8451
2
2
20
22
Thermocouple inputs Thermocouple
extension wire
220
Digital I/O Belden #9539
Belden #9542
Ribbon Cable
9
20
50
24
24
Computer
Communication:
RS-232 or RS-485
Belden #9729
Belden #9730
Belden #9842
Belden #9843
4
6
4
6
24
24
24
24
- User ’s Guide 1
- Warranty 2
- Contents 3
- CAS User’s Guide iii 5
- Overview 7
- System Diagram 8
- Parts List 8
- 10
- Introduction 11
- Specifications 13
- Digital Inputs 14
- Digital Outputs 14
- System Digital Outputs 14
- Miscellaneous Specifications 15
- 6 CAS User’s Guide 16
- Installation 17
- Precautions and Warnings 18
- Recommended Tools 19
- CAS Mounting Procedure 20
- TB-50 Mounting Instructions 21
- Grounding 24
- Thermocouple Wiring 24
- Input Wiring 24
- Communications Wiring 25
- Wiring: Noise Suppression 26
- General Wiring 27
- Connections Test 28
- Wiring Outputs 29
- Using the Cable Tie Wraps 30
- Alarm Output Connections 31
- Watchdog Timer 31
- TB-50 Connections 32
- Input Scaling 33
- Scaling Values 34
- Scaling and Calibration 35
- T/C Inputs 36
- Connecting Thermocouples 36
- Current Inputs 36
- Voltage Inputs 37
- Unused Inputs 37
- Serial Communications 38
- JU 1JU 1 39
- Configuring Communications 40
- Recommended Wire Gauges 41
- 32 CAS User’s Guide 42
- Using the CAS 43
- Front Panel 44
- Single Channel Display 46
- Job Display 47
- Change Setpoint 48
- Acknowledging an Alarm 49
- Resetting an Alarm 49
- 40 CAS User’s Guide 50
- How to Enter the Setup Menus 51
- How to Edit a Menu 51
- CAS Menus 52
- Setup Global Parameters Menu 53
- Save Setup to Job 54
- Job Select Inputs 54
- Job Select Input Polarity 55
- Startup Alarm Delay 55
- Keyboard Lock Status 56
- Scanner Address 56
- Communications Error Checking 56
- Communications Baud Rate 57
- Allen-Bradley Protocol 57
- AC Line Frequency 57
- Digital Output Polarity 58
- EPROM Information 58
- Setup Channel Inputs 59
- Pulse Sample Time 60
- Channel Name 60
- Input Units 61
- Input Reading Offset 61
- Linear Scaling Menus 62
- Variable 63
- InputR eading 63
- Display Format 64
- High Process Value 64
- High Reading 65
- Low Process Value 65
- Low Reading 66
- Input Filter 66
- Setup Channel Alarms 67
- Alarm Delay 69
- High Process Alarm Setpoint 69
- High Process Alarm Type 69
- Deviation Alarm Value 70
- High Deviation Alarm Type 70
- Low Deviation Alarm Type 71
- Low Process Alarm Setpoint 72
- Low Process Alarm Type 72
- Alarm Deadband 73
- Manual I/O Test 75
- Digital Output Test 76
- Keypad Test 76
- Troubleshooting 77
- Manual System Reset 78
- Returning the Unit 78
- TB-50 Test 79
- Checking an Analog Input 79
- Checking Digital I/O 79
- Digital Input Test 80
- Computer Problems 81
- Ground Loops 82
- Software Problems 82
- User-Written Software 82
- Changing the EPROM 83
- Appendix: Linear Scaling 85
- Examples 85
- Example 2 86
- Example 3 87
- 78 CAS User’s Guide 88
- Glossary 89
- 88 CAS User’s Guide 98
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