Cutler-Hammer D320 PLC, User Manual

Page: 185 / 258

Chapter 7: Testing and Troubleshooting
173
Error Check
Error LED is illuminated
Is bit F1.7 in
the On state?
Is the Error LED
illuminated?
System error.
Resupply power.
System ROM error.
Resupply the power.
System RAM error.
Resupply the power.
User program error.
Download the program again.
Program syntax error.
Correct program and
download again.
Is bit F1.7 in
the On state?
Replace the CPU module Replace the CPU module
K register error,
Clear the K registers or
resupply the power
Module address error.
Correct program and
resupply the power.
Module change error.
Check module and
resupply the power.
Unidentified module installed.
Check module type and
resupply the power.
F0.0 = 1
F0.1 = 1
F0.2 = 1
F0.3 = 1
F0.4 = 1
F0.5 = 1
F0.6 = 1
F0.7 = 1
Yes
Yes
No
Are any
of the following bit
addresses in the On state:
F0.0, F0.1, F0.2, F0.3,
F0.4, F0.5, F0.6,
F0.7
No
Are any
of the above bit addresses in
the On state?
Yes
No
Yes
No
Yes
No
Go to the system check
flow chart