Operation Without A Battery - Omron NX Series User Manual

6 Inspection and Maintenance
2) Use the locating part as a supporting point and push the Fan Unit into the CPU Unit.
Make sure that the lever is securely locked and there is no lifting-off of the Fan Unit.
The power supply connection for the Fan Unit is established when it is attached to the CPU
Unit. Wiring is not required.
4
Turn ON the power supply to the Controller and check the operation for about a minute.
Make sure that the fan does not generate abnormal noise or vibration, and a Slow Fan error
does not occur.
6-14
NX-series CPU Unit Hardware User's Manual (W535)