ABB ACH580-01 Series - Free Space Requirements

34 EN – R6…R9 Quick installation guide
R0-
R3
R6-
R9
EN
DA
DE
ES
FI
FR
IT
NL
PL
PT
RU
SV
TR
ZH
WARNING! Do not install the drive with the ground-to-phase varistor
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.
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 35.
Frame
sizes
EMC
filter
(EMC)
Ground-
to-phase
varistor
(VAR)
Symmetrically
grounded TN
systems (TN-S
systems)
1
Corner grounded
TN systems
2
IT systems
(ungrounded or
high-resistance
grounded [>30
ohms])
3
R6…R9 2 × EMC - Do not disconnect Disconnect Disconnect
-1 × VAR
Do not disconnect Do not disconnect Disconnect
1 2 3
Drive
PE
N
L3
L2
L1
Drive Drive
PE
L3
L2
L1
L3
L2
L1