Electrical installation 93
Frames R1…R3
To disconnect the internal EMC filter or ground-to-phase varistor, if needed, do as
follows:
1. Switch off the power from the drive.
2. Open the front cover, if not already opened, see page 97.
3. To disconnect the internal EMC filter, remove the EMC screw (3a) and place it in
the storage place (3b).
4. To disconnect the ground-to-phase varistor, remove the varistor screw (4a) and
place it in the storage place (4b).