ABB ACS580-01 Manual page 37

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Disconnect EMC filter or ground-to-phase varistor, if needed
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 figure
3. To disconnect the internal EMC filter, remove the two EMC screws.
4. To disconnect the ground-to-phase varistor, remove the varistor screw.
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EN – R5 Quick installation guide 179
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B on page 435.
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