Siemens SINAMICS SM150

9.5.2 Filter mats
9.5.2.1 Replacing filter mats
NOTICE
Suction of the running cabinet fans
Dust can enter the interior of the cabinet during filter mat replacement due to the suction of
the running cabinet fans. Dust deposits can damage the device.
Ensure that no dust enters the cabinet when replacing the filter mats.
1. Remove the screws for the louvered fan grid in the cabinet door.
Figure 9-6 Schematic diagram: Replacing filter mats
2. Remove the filter mat.
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. Insert the filter mat in the frame of the fan opening. In order that dirt is not drawn into the
converter, insert a clean mat in the same direction as it was installed before the cleaning.
5. Carefully place the louvered cover over the frame.
6. Retighten the cover screws.
Maintenance
9.5 Maintenance
SINAMICS SM150 6SL3845-7NN46-7AA0
166 Operating Instructions 04/2017