ABB ACS880-34 User Manual

88 Installation instructions
 When to disconnect EMC filter (option +E202) or ground-to-phase
varistor: TN-S, IT, corner-grounded delta, and midpoint-grounded
delta system
Note: These are the EMC filter and varistor screws.
 Guidelines for installing the drive to a TT system
The drive can be connected on a TT system under these conditions:
1. Residual current device has been installed in the supply system.
2. These screws and ARFI-10 have been disconnected. Otherwise EMC filter and
ground-to-phase varistor capacitor leakage current will cause the residual current
device to trip.
Frame
size
Symmetrically grounded
TN systems (TN-S
systems)
1
Corner-grounded and
midpoint-grounded delta
systems
2
IT systems (ungrounded or high-
resistance-grounded [>30 ohms])
3
R11 Do not disconnect EMC AC
or VAR screws. Do not
disconnect .ARFI-10.
Do not install the drive on a
corner-grounded or mid-point
grounded system.
Disconnect EMC AC and VAR
screws. Disconnect ARFI-10
Frame
size
EMC filter (+E202) Ground-to-phase varistor screws
R11 EMC AC VAR
Frame
size
EMC filter +E202 Ground-to-phase varistor screws
R11 EMC AC, ARFI-10 VAR
Drive
PE
N
L3
L2
L1
Drive Drive
PE
L3
L2
L1
L3
L2
L1
Drive
PE
L3
L2
L1
123
2

ABB ACS880-34 Specifications

General

Brand	ABB
Model	ACS880-34
Category	DC Drives
Language	English