Watlow CAS200 - Manual (Page 6)

Contents CAS200 User’s Guide
iv Watlow Anafaze
Low Process Alarm Setpoint 63
Low Process Alarm Type 63
Low Process Alarm Output Number 63
Alarm Deadband 64
Alarm Delay 64
Manual I/O Test 65
Digital Input Testing 65
Digital Output Selection 65
Digital Output Test 66
Keypad Test 66
Troubleshooting and Reconfiguring 67
When There is a Problem 67
Returning Your Unit 68
Troubleshooting Scanners 68
Process and Deviation Alarms 68
Thermocouple Break Alarm 69
System Alarms 69
Other Behaviors 70
Corrective and Diagnostic Procedures 71
Additional Troubleshooting for Computer Supervised Systems 76
Computer Problems 76
Communications 77
Ground Channels 78
Software Problems 78
NO-Key Reset 78
Replacing the EPROM 79
Changing Communications 81
Installing Scaling Resistors 82
CAS200 Input Circuit 82
CAS200 Current Inputs 83
CAS200 Voltage Inputs 84
Scaling and Calibration 85