ABB ACS580-01 Manual page 12

28 EN – R1...R4 Quick installation guide

Ground-to-phase varistor
The ground-to-phase varistor is not suitable for use on an IT (ungrounded) system.
Disconnect the ground-to-phase varistor before connecting the drive to the supply
network. Check the table on page 28.
R1-
R4
WARNING! Do not install the drive with the ground-to-phase varistor
R5 connected on an IT system (an ungrounded power system or a high-
resistance-grounded [over 30 ohms] power system), otherwise the varistor circuit can
be damaged.
R6-
R9
Check from the table below if you have to disconnect the EMC filter (EMC) or ground-
to-phase varistor (VAR). For instructions on how to do this, see page 29.
Frame EMC
EN
sizes filter
DA
(EMC)
DE
R1...R3 EMC
ES
(1 screw)
-
FI
R4 EMC
FR
(2 screws)
IT -
NL
1
PL
PT
RU
SV
Drive
TR
ZH
Ground- Symmetrically
to-phase grounded TN
varistor systems (TN-S
systems)
(VAR)
- Do not disconnect
VAR Do not disconnect
(1 screw)
- Do not disconnect Frame R4 cannot
VAR Do not disconnect
(1 screw)
2
L1
L2
L3
N
PE
Corner grounded
TN systems
1
Disconnect
Disconnect
be used in corner
grounded TN
systems.
3
L1
L2
L3
PE
Drive
IT systems
2
(ungrounded or
high-resistance
grounded [>30
3
ohms])
Disconnect
Disconnect
Disconnect
Disconnect
L1
L2
L3
Drive