Watlow CAS - Manual (Page 3)

Contents
CAS User’s Guide i
Contents
Introduction ................................................................1
CAS Features ...................................................................... 3
Specifications...................................................................... 3
Analog Inputs................................................................ 3
Digital Inputs ................................................................ 4
Digital Outputs.............................................................. 4
System Digital Outputs ................................................. 4
Miscellaneous Specifications.............................................. 5
Serial Interface .............................................................. 5
System Power Requirements ........................................ 5
Environmental Specifications ....................................... 5
Physical Dimensions..................................................... 5
Installation..................................................................7
Precautions and Warnings .................................................. 8
Recommended Tools .......................................................... 9
Panel Hole Cutters ........................................................ 9
Other Tools ................................................................... 9
CAS Mounting Procedure................................................... 10
Mounting Environment................................................. 10
TB-50 Mounting Instructions ............................................. 11
General Wiring Recommendations..................................... 13
Grounding ..................................................................... 14
Thermocouple Wiring................................................... 14
Input Wiring.................................................................. 15
Communications Wiring............................................... 15
Wiring: Noise Suppression ................................................. 16
Symptoms of RFI.......................................................... 16
Avoiding Noise Problems ............................................. 16
General Wiring ................................................................... 17
Power Wiring and System Test .................................... 17
Outputs................................................................................ 19
Wiring Outputs ............................................................. 19
Alarm Output Connections ........................................... 21
Watchdog Timer ........................................................... 21
TB-50 Connections ....................................................... 22
Inputs .................................................................................. 23
Input Scaling ................................................................. 23
Scaling Values .............................................................. 24