Instruction manual

6. IN CASE OF TROUBLE
IMSRM15-E6
106
(5) H-CT module
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 break Inspect heater
Terminal loose, miss-wiring
between channels
Tighten terminals, check wiring
Input circuit, CPU breakdown Replace module