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Errors and Alarm Troubleshooting
Section
7-1
192
7-1 Errors
and
Alarm
Troubleshooting
7-1-1
Judging Errors by Indicators
RUN
LC001
RD
SD
ERC
ERH
CS
Indication
Name
Color
State
Description
Out
System stopped
A probable cause is one of the following:
Initialization of unit in progress
Unit hardware trouble
No power supply from power supply unit
Unit WDT error
Operation of Loop Control Unit stopped
(A probable cause is one of the following:)
- Regular operation stopped
- CPU Unit run stop error
- CPU Unit in standby mode
- Load rate exceeded at operation
cycle of 2 s (Operation Cycle
Automatic Switching Generation
flag ON)
RUN
CPU Unit
running
Green
Lit
Loop Control Unit running
Out
No CPU Unit error
ERH
CPU Unit
error
Red
Lit
CPU Unit error
Out
No error
Lit
Error
ERC
Loop
Control
Unit error
Red
Blinking
Battery error (Only when DIP switch pin 2 is OFF)
SD
Not used
RD
Not used