10.2.3.3 Replacing the fan unit, FSH/FSJ
Two external fan units are installed at the bottom of the converter.
Procedure
Proceed as follows to replace the fan unit(s):
1. Switch off the converter power supply.
2. Release the retaining screws (two screws on FSH, and three screws on FSJ) and remove
the lower cover of the converter ①.
3. Disconnect the two cable lugs of fan power supply ②.
4. Release the retaining screws (four screws on FSH, and eight screws on FSJ) ③ and draw
out the fan unit(s) ④.
5. Install the new fan unit(s) in the reverse sequence (tightening torque for the fixing screws:
3 Nm/26.5 lbf.in).
You have replaced the fan unit(s).
❒
Corrective maintenance
10.2 Replacing spare parts
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 837
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