ABB ACH580-01 - Page 171

1. Switch off the power from the drive.
2.
Open the cover, if not already opened. Frame R4: see page 174, frame R5: see page
178, frames R6…R9: see page 182.
3. To disconnect the internal EMC filters:
The DC EMC filter is disconnected by default with a plastic screw (3a).
The AC EMC filter is disconnected by default with a plastic screw (3b).
4. To disconnect the ground-to-phase varistor, replace the metal varistor screw (4)
with the plastic screw provided in the package, or just remove the metal screw.
R5R4
3
3
4
A
B
C
3
4
A
3 B
C
R6…R9
Default materialScrew
PlasticEMC (DC)A
PlasticEMC (AC)B
MetalVARC
3 B
3 A
4 C
Electrical installation – North America 171