Disconnecting Internal Emc Filter Or Ground-To-Phase Varistor - Frames R4 - ABB ACH580-01 Hardware Manual

120 Electrical installation – IEC
4. To disconnect the ground-to-phase varistor, remove the varistor screw (4a) and
place it in the storage place (4b)
R1
3b
R3
￭
Disconnecting internal EMC filter or ground-to-phase varistor - frames
R4...R9
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 cover, if not already opened. Frame R4: see page 123, frame R5: see page
129, frames R6...R9: see page 83.
4a
B
3a
A
4b
3b 4b
3a
A
4a
B
R2
Screw
A EMC (DC)
B VAR
4a
B
3a
A
3b
4b