5. Disconnect the connecting cable from the terminal box ① of the fan.
6. Remove the two sheet metal brackets from the fan's base plate. To do this, loosen the
screws ④.
CAUTION
The fan can fall
The fans are very heavy. They can cause injury or material damage if handled improperly.
Please take special care when removing the fans from the drive.
Installing the fan
Install the fan in reverse order.
9.5.2 Replacing filter mats
To prevent dangerous dust deposits from accumulating in the power unit components,
additional filter mats are attached to the outside of the device.
The device must not be operated when the filter mats are dirty. Dirty filter mats can cause a
premature thermal shutdown of the drive.
WARNING
Replacing the filter mats during operation
Replacing the filter mats while the drive is in operation can cause hazards for maintenance
personnel due to arcing. This can result in death, serious injuries or material damage.
Do not replace filter mats while the drive is operational.
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.
Procedure
1. Remove the screws for the louvered fan grid in the cabinet door.
2. Remove the filter mat.
3. If there is a slight amount of dirt, clean the filter mat at a suitable location. Otherwise,
correctly dispose of the dirty filter mat. Use a new filter mat
4. Insert the filter mat in the frame of the fan opening.
Maintenance
9.5 Maintenance
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 101
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