
6. IN CASE OF TROUBLE
IMSRM02-E6
66
(2) TIO module related
Problem
Probable cause
Solution
RUN lamp does not flash
Power line defect
Replace mother block
Power supply section defect
Replace PCP 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
Specific output not output
Input cut line
Replace sensor
External operating device defect Inspect external operating devices
Output section mis-wiring, cut
line
Inspect wiring; replace as
necessary
Terminal screw loose
Retighten
Output circuit, CPU breakdown Replace module
Bus line defect
Replace mother block
No outputs operate
System set to
STOP
mode
Switch to
RUN
mode
System set to
Unused
mode
Switch to
Used
mode
Load power not supplied
Supply power
Load power supply voltage
outside rating
Change to voltage within rating
Main CPU section breakdown
Replace PCP module
Bus line defect
Replace mother block
Specific output relay does not go off Output relay contacts stuck
Replace module
External operation device
recovery defect due to leakage
current at surge killer etc.
Reevaluate surge killer; reevaluate
external operating device
Output circuit, CPU breakdown Replace TIO module
No output relays go off
Main CPU section breakdown
Replace PCP module
Output chattering ON/OFF with
extremely short period
Terminal tightening defect
Tighten more
ON/OFF with extremely short period Control period too short
Change period setting
Malfunction due to excess noise Investigate noise filter installation
Continued on the next page.
Содержание SR Mini System
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Страница 111: ...The 1st edition Nov 1994 The 6th edition Aug 2000...