ABB ACS880-01 Series Kurzanleitung für Installation und Inbetriebnahme - Seite 3
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6. Remove the covers.
R1...R3
IP55 (UL Type 12)
2
1
1
7. Make sure that the drive is compatible with the grounding system
You can connect all drives to a symmetrically grounded TN-S system (center-grounded wye). With option +E200 or +E202: If
you install the drive to a different system, you must remove the EMC screw (disconnect the EMC filter) and/or remove the
VAR screw (disconnect the varistor circuit).
Frame
Symmetrically grounded
TN-S systems (center-
grounded wye)
R1...R4
Do not remove EMC AC or
VAR screws.
R5
R6...R9
1) A residual current device must be installed in the supply system. In NEC installations the residual current device is only
required at or above 1000 amps.
2) ABB does not guarantee the EMC category or the operation of the ground leakage detector built inside the drive.
WARNING! Do not install the drive on a 525...690 V corner-grounded or midpoint-grounded delta system.
Disconnecting the EMC filter and ground-to-phase varistor does not prevent damage to the drive.
8. Measure the insulation resistance of the power cables and the motor
Measure the insulation resistance of the input cable before you connect it to the drive. Obey local regulations.
Measure the insulation resistance of the motor cable and motor when the
cable is disconnected from the drive. Measure the insulation resistance
between each phase conductor and the PE conductor. Use a measuring
voltage of 1000 V DC. The insulation resistance of an ABB motor must be
more than 100 Mohm (reference value at 25 °C). For the insulation
resistance of other motors, see the manufacturer's instructions. Moisture
inside the motor decreases the insulation resistance. If you think that there
is moisture, dry the motor and do the measurement again.
R4,R5
1
1b
1a
Corner-grounded delta
and midpoint-grounded
delta systems
Do not remove EMC AC or
VAR screws.
Do not remove EMC AC or
VAR screws. Remove EMC
DC screw.
Do not remove EMC AC or
VAR screws. Remove EMC
DC screw.
R6...R9
IP55 (UL Type 12)
1
1b
2
IP21 (UL Type 1)
IT systems (ungrounded
or high-resistance
grounded)
Remove EMC AC, EMC DC
and VAR screws.
Remove EMC AC, EMC DC
and VAR screws.
Remove EMC AC, EMC DC
and VAR screws.
ohm
IP55 (UL Type 12)
1a
2
2
IP21 (UL Type 1)
1) 2)
TT systems
Remove EMC AC, EMC DC
and VAR screws.
Remove EMC AC, EMC DC
screws and VAR screws.
Remove EMC AC, EMC DC
and VAR screws.
U1-PE, V1-PE, W1-PE
U1
M
V1
1000 V DC,
3~
> 100 Mohm
W1
PE
3
1