Omron CK3M Series, Hardware User Manual

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6-3 Troubleshooting for Errors
6-3-1
Fatal Errors in the CPU Unit
For fatal errors in the CPU Unit, take the following corrective actions depending on the nature of the
error.
Description Cause Corrective action
Power Supply Unit
power supply error Power is not supplied
to the Power Supply
Unit Check the following items and adequately supply power to the
unit.
•
Is the power turned on?
•
Is the power cable wired correctly?
•
Is the power cable free of damage?
Input voltage is out of
allowable range Check the following items and adjust the voltage so that it falls
within the allowable range.
•
Is the power supply voltage within the specified range?
•
Is the capacity of the power supply sufficient?
•
Is the power supply failing?
Output current of the
power supplied to the
encoder exceeds the
maximum current ca-
pacity Check the following items and adjust the voltage so that it does
not exceed the maximum current capacity.
•
Does encoder current consumption exceed the maximum cur-
rent capacity?
•
Is the encoder connector wiring connected correctly?
•
Has the encoder cable short-circuited?
•
Is the encoder failing?
Power supply error of
mounted unit Remove the connected Units one by one, and if the error is elimi-
nated, replace that Unit.
The number of con-
nected Units exceeds
the maximum capaci-
ty Check whether the connected Units exceed the maximum con-
nectable number. The maximum connectable number is 2
CK3W-AX Units.
Power Supply Unit
failure If the error persists even after you make the above corrections,
replace the Power Supply Unit.
CPU Unit power
supply error Connection error be-
tween the Power
Supply Unit and the
CPU Unit Make sure that the Power Supply Unit and the CPU Unit are con-
nected correctly.
CPU Unit or Power
Supply Unit failure If the error persists even after you make the above corrections,
replace the CPU Unit or the Power Supply Unit.
6 Troubleshooting
6-5
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
6-3
T
roubleshooting for Errors
6
6-3-1
Fatal Errors in the CPU Unit