Replaing The Internal Fan - Siemens SINAMICS G120 Operating Instructions Manual

9.4

Replaing the internal fan

When do you have to replace the fan?
A defective fan involves an over temperature of the inverter. Indications for a defective fan
are e. g. the following alarms and faults:
● A30034 (Internal overtemperature)
● F30036 (Internal overtemperature)
● A30049 (Internal fan faulty)
● F30059 (Internal fan faulty)
Removal
The fan is situated at the top of the inverter.
1. Power-down the Inverter
Risk of electrical shock!
Hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
It is not permissible to carry out any installation work before this time has expired!
2. Using a screw driver, bend the locking latches to release the fan.
3. Pull the fan out.
Installation
1. Gently push the fan module into the inverter, ensuring that the power connections are
2. The fan will click into place as the locking latches are engaged correctly.
3. Power-up the inverter.
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
DANGER
aligned correctly.
Servicing and maintaining
9.4 Replaing the internal fan
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