Omron CK3W-GC 00 Series Hardware User Manual page 230

6 Troubleshooting
 HWChangeErr
Register name
Description
Range
Details
Detection timing
Recovery
Effects
Cause and cor-
rection
Precautions/
Remarks
6-16
Sys.HWChangeErr
After the save, the hardware configuration was changed.
0 to 1
0: No change in hardware configuration.
1: After the save, the hardware configuration was changed.
When power is turned ON or the Controller is reset.
Cycle the power supply, or issue reset command ($$$)
Operate with default settings.
Cause (Assumed cause)
After the save, the Unit
configuration or address
switch was changed.
Contamination with conduc-
tive object
Noise
•
Data corruption in bus
signals
•
Malfunction of bus inter-
face circuit
The CPU Unit or the CK3W
Unit has failed
None
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
Correction
Check the Unit configura-
tion or address switch.
When changing the Unit
configuration or address
switch, change the settings
to match the new configura-
tion, and issue a save com-
mand. If the Unit configura-
tion or address switch has
not changed, implement the
following measures.
If there is conductive mate-
rial nearby, blow air through
the Unit.
If the error occurs even af-
ter making the above cor-
rection, check noise entry
paths such as the FG and
the power supply lines and
implement noise counter-
measures as required.
If this error persists even
after you make the above
corrections, replace the
CPU Unit or the CK3W
Unit.
Prevention
None
Do not perform any metal
work in the vicinity of the
control panel. Make sure
that the work environment
is free of dirt and dust.
Then close the control pan-
el.
Implement noise counter-
measures.
None