Siemens Sinamics PM250 Hardware Installation Manual page 50

Operation, service and maintenance
6.3 Replacing fans
Fan replacement, frame sizes FSD and FSE:
Procedure
1. Switch the inverter off.
2. Disconnect all the cables from the Power Module.
3. Release the fan cover catches
4. Release and remove the fan cover
5. Remove the fan connector
6. Release the fan catches
7. Remove the fan from the device
Install the new fan in the inverse sequence.
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Hardware Installation Manual, 01/2016, A5E36265179B-AA
PM250 Power Module