Note
The fiber-optic cables for the gating boards must be properly inserted in the connectors.
9.4.5
Replacing filter mats
NOTICE
Damage due to dust deposits
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 9-5
Example 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 in, 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
9.4 Inspection and maintenance
SINAMICS SM150 6SL3810-7NN38-0AA1
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Operating Instructions Rev.201910281406 EXAMPLE