Identifying Different Types Of Electrical Power Systems - ABB ACS880-04 Manual De Hardware

EMC filter +E202 (ARFI-10)
Check from this table if you have to remove EMC filter +E202 (ARFI-10) or ground-to-
phase varistor (VAR screw).
Frame Symmetrically grounded
size TN systems
(TN-S systems)
TT systems
R10, R11 Do not remove ARFI-10
or VAR.
Note: These are the EMC filter and varistor screws of different drive frame sizes.
Frame
size
R10, R11

Identifying different types of electrical power systems


To identify the electrical power system type, find out the supply transformer connection. If
that is not possible, measure these voltages at the distribution board before you connect
power to the drive:
1. input voltage line to line (U
2. input voltage line 1 to ground (U
3. input voltage line 2 to ground (U
4. input voltage line 3 to ground (U
Corner-grounded and
midpoint-grounded
1
and
2
Do not remove ARFI-10
1
L1
L2
L3
N
PE
Drive
2
L1
L2
L3
N
Drive
EMC filter screw
-
)
L-L
L1-G
L2-G
L3-G
3
delta systems
(< 600 V)
or VAR.
3
L1
L2
L3
PE
Drive
L1
L2
L3
PE
Drive
Ground-to-phase varistor screw
)
)
).
Update notice 3
IT systems (ungrounded or
high-resistance-grounded
4
[>30 ohms])
Remove ARFI-10 and VAR.
4
L1
L2
L3
Drive
VAR