Replacing The Cooling Fan - Siemens SINAMICS G120 Hardware Installation Manual

6.2

Replacing the cooling fan

Service life of the fan
The average service life of the fan is 40,000 hours. In practice, however, the service life may
deviate from this value. Especially a dusty environment can block up the fan.
The fan must be replaced in good time to ensure that the inverter is ready for operation.
Replacing the fan modules for inverters, frame sizes FSA ... FSC
Proceed as follows to replace a fan module:
1. Switch-off the inverter, and wait 5 minutes until the DC link capacitors have been discharged.
2. Withdraw the line and motor cable plug connectors and, if available, remove the braking
resistor from the Power Module.
3. Remove the shield plate from the Power Module.
4. Remove the fan module from the Power Module in steps
diagram. Use a screwdriver if necessary.
5. Install the new fan module in the inverse sequence.
You have replaced the fan module.
Removing the fan from inverters, frame sizes FSD and FSE
Proceed as follows to replace a fan:
1. Switch-off the inverter, and wait 5 minutes until the DC link capacitors have been discharged.
2. Disconnect all of the cables from the Power Module.
3. Release the fan cover
4. Remove the fan cover
5. Remove the fan connector
6. Release the fan catches
Power Module PM230, IP20 / Push-through technology (PT)
Hardware Installation Manual, 08/2016, A5E34331322B AB
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Service and maintenance
6.2 Replacing the cooling fan
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and as shown in the
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