ABB ACS580 Series - Disconnecting Internal EMC Filter or Ground-To-Phase Varistor - Frames R4

2. Open the front cover, if not already opened, see page 140.
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)
R2R1
4b
3b
4a
3a
B
A
8 mm
4b3b
4a
3a
B
A
R3
Screw
EMC (DC)A
VARB
4b3b
4a
3a
A
B
￭
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:
136 Electrical installation – Global (IEC)