6. IN CASE OF TROUBLE
IMSRM02-E6
68
(3) CT module related
Problem
Probable cause
Solution
RUN lamp does not flash
Power line defect
Replace mother block
Power supply section defect
Replace module
CPU section breakdown
Replace module
RUN lamp stays lit
Module different from system
specifications inserted
Replace with module matching
specifications
Maximum number of linkable
units exceeded
Eliminate a module
FAIL lamp lit up
CPU section breakdown
Replace module
Electrical current read-in value
abnormal
CT sensor different from module
specifications used
Replace CT sensor
Heater cut line
Inspect heater
Terminal loose, mis-wiring
between channels
Tighten terminals, check wiring
Input circuit, CPU breakdown
Replace module
Error from certain module on
Head mother block defect in
error module
Replace mother block
Module connections
disconnected
Check connections
