Error Indicators; Errors During Initial Processing; Errors During Normal Operation - Omron CJ1W-CTL41-E Operation Manual

5 Error Processing, Maintenance and Inspection
5-1

Error Indicators

The RUN-, ERC-, and ERH indicators at the front panel of the Counter Unit, display the following errors.
5-1-1

Errors during initial processing

RUN ERC ERH Error
OFF OFF ON Setup error
OFF ON OFF DM-configuration
error
Unit error
OFF ON ON Unit classification
error
OFF OFF OFF Watch Dog Timer
time-out error
5-1-2

Errors during normal operation

RUN ERC ERH Error
ON ON OFF Unit error
ON OFF ON System error
5-2
Probable cause
Incorrect Unit number
Cyclic initial error
Invalid contents of the settings
for device variables for CJ-
series Unit (for setting)
An error occurred in the Unit's
EEPROM, RAM or CPU or a
system software error occurred
The Unit classification was set
incorrectly
The Unit's Watch Dog Timer
has timed out
Probable cause
• Overflow or underflow of Lin-
ear Counter.
• Preset error
CPU error
CJ-series 4-Channel Counter Unit Operation Manual for NJ-series CPU Unit (W512)
Remedy
Set correct Unit number and turn ON
the power again
Check the error code with *_ErrCode1
(Error code 1) and *_ErrCode2 (Error
code 2), set the device variables for CJ-
series Unit (for setting) (unit setting)
again correctly. Restart the Unit or reset
the Controller.
Refer to 5-2 Error Codes for more infor-
mation on error codes and how to clear
them.
Restart the Unit or reset the Controller.
If errors reoccur, then replace the High-
speed Counter Unit.
Replace the Counter Unit
Turn OFF and then ON the power
again. If errors reoccurs, then replace
the Counter Unit
Remedy
Check the Error Code(s) in *_ErrCode1
(error code 1) and *_ErrCode2 (Error
code 2). Apply appropriate remedy
according to the cause of the error.
Refer to 5-2 Error Codes for more infor-
mation on error codes and how to clear
them.
Check the CPU for errors and apply the
appropriate remedy according to the
cause of the error.