Maintenance; Replacing A Fan - Siemens SINAMICS SL150 Operating Instructions Manual

Maintenance

9.5 Maintenance
9.5 Maintenance
9.5.1

Replacing a fan

NOTICE
Improper fan storage
Even if the fan is not used, the bearing grease ages. The utility of the fan can be impaired.
Rotate the fan at least once a year. Do not store the fan for longer than two years before
commissioning.
Injury caused by rotating fan
If the converter is equipped with a temperature-controlled fan, the fan can run on even if the
power section is switched off. You can be injured if you touch the fan.
● Wait until the fan has shut down.
For reliable operation, the fans must also be fitted with a monitoring device. Replace the fan in
good time to maintain the availability of the device.
Removing the fan
1. Disconnect the equipment.
2. Switch off the motor protection switch.
3. Remove the mesh cover on the junction box side of the fan. To do this, remove the seven
4. Open the cover of the junction box and remove the fan cables.
5. The fan is attached to the roof section using four nuts, which are located inside the fan.
6. Lift the fan up and out. Eyebolts can be fitted on top of the fan so that it can be lifted out more
82
CAUTION
screws of the mesh cover.
Remove the four nuts including the contact washers. If required, also remove the mesh
cover on the other side.
easily.
CAUTION
Injury due to a falling fan
The fans are very heavy (approx. 50 kg). If incorrectly handled, fans can fall and result in
injury and material damage.
● Take extra special care when lifting the fans.
SINAMICS SL150 6SL38600UL432AA0Z
Operating Instructions Rev.201910281433 EXAMPLE