Procedure
Proceed as follows to remove the fan unit:
1. Switch off the inverter power supply.
WARNING
Electric shock as a result of a residual charge in power components
After the power supply has been switched off, it takes up to 5 min. until the capacitors in
the inverter have discharged so that the residual charge is at a non-hazardous level.
● Check the voltage at the inverter connections before you carry out any installation work.
2. Withdraw the cables for the line supply, motor and braking resistor.
3. Remove the shield plate.
4. Using your fingers, press on the sides of the fan unit locking lugs.
5. Withdraw the fan unit from the housing.
You have withdrawn the fan unit.
Install fan unit, FSA ... FSC
Procedure
Proceed as follows to install the fan unit:
1. Align the power supply connection of the fan unit to the connector in the inverter.
2. Carefully insert the fan unit into the heatsink until until the locking lugs engage.
3. Mount the shield plate.
4. Insert the cables for the line supply, motor and braking resistor.
5. Switch on the power supply for the inverter.
You have installed the fan unit.
Corrective maintenance
9.2 Replacing inverter components
SINAMICS G120C converter
386 Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
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