CJ1W-MCH72 Datasheet, PDF (360/374 Pages) Omron Electronics LLC – Programmable Controller SYSMAC CJ-series CJ1W-MCH72

Error Indicators
Section 6-2
6-2
6-2-1
Error Indicators
The unit's status LED indicators indicate the following errors:
Errors During Initialisation
/i
Status
LED:
RUN
Initial hardware test OFF
error
Error log access
error
OFF
PLC watchdog
timeout error
OFF
Communication error OFF
between the unit and
the PLC
Other CPU error OFF
Unit No. setting error OFF
I/O table
OFF
configuration error
ON:
Lit
ERC
Flashing
OFF:
Not lit
ERH
OFF
ON
OFF
OFF
OFF
OFF
ON
FLASH:
Flashing
WDOG
OFF
--: Not
changed
BF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
6-2-2 Errors During Operation
/i
Status
LED:
RUN
Low or empty battery --
error
Error log access --
error
PLC watchdog
timeout error
OFF
Communication error --
between the unit and
the PLC
CPU fatal error
--
(FALS)
CPU non-fatal error --
(FAL)
Mechatrolink-II bus --
error
BASIC program
--
error
Axis error
--
Other errors
--
ON: Lit
ERC
Flashing
OFF:
Not lit
ERH
--
ON
--
--
--
--
ON
FLASH:
Flashing
WDOG
--
--: Not
changed
BF
--
--
--
--
--
--
--
--
--
OFF
--
--
--
--
--
--
--
OFF
ON
--
--
--
--
--
--
--
--
--
--
--
--
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