Maintenance and servicing
11.4 Replacing components
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
773
Description
The average service life of the device fans is 50,000 hours. In practice, however, the service
life depends on other variables (e.g. ambient temperature, degree of cabinet protection, etc.)
and, therefore, may deviate from this value.
The fans must be replaced in good time to maintain the availability of the cabinet unit.
Preparatory steps
●
Disconnect the cabinet unit from the power supply.
●
Allow unimpeded access.
●
Remove the protective cover.
Removal steps
The removal steps are numbered in accordance with the numbers in the diagram.
1.
Remove the retaining screws for the fan unit (2 screws).
2.
Unplug connector –X630.
You can now carefully remove the fan unit.
NOTICE
Damage to the device if signal cables are damaged when removing
Signal cables can be damaged when the fan is removed. This can cause the device to fail.
•
When removing the fan, ensure that you do not damage any signal cables.
Installation steps
To reinstall, perform the above steps in the reverse order.
Note
Pay attention to the tightening torques
The tightening torques specified in the table "Tightening torques for screw connections" must
always be carefully observed.
Summary of Contents for SINAMICS S150 NEMA
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