Siemens SINAMICS SM150

9.5.2.2 Replacing the filter mats in the roof assembly
NOTICE
Suction of the running fans
Dust can enter the interior of the cabinet during filter mat replacement due to the suction of
the running fans. Dust deposits can damage the device.
Ensure that no dust enters the cabinet when replacing the filter mats.
Figure 9-7 Changing the filter in the roof assembly
1. Release the four screws ①.
2. Release the two screws ②. Remove the filter frame.
3. Remove the filter ③.
If there is a slight amount of dirt, clean the filter mat at a suitable location. Depending on
the degree of pollution, you can also clean the filter mats using a vacuum cleaner. If the
filter mat is damaged, or the frequency of alarms increases, dispose of the dirty filter mat
in the correct fashion. Use a new filter mat
4. Place a new filter in the frame ④.
5. Reattach the frame of the filter and cover.
Maintenance
9.5 Maintenance
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017 167