ABB ACQ580-34 Kurzanleitung Für Die Installation Und Inbetriebnahme Seite 7

Make sure that the drive is compatible with the grounding
system
The standard drive with internal EMC filter +E210 and the ground-to-phase varistor
connected can be installed to a symmetrically grounded TN-S system. If you install
the drive to another system, you may need to disconnect the EMC filter and
ground-to-phase varistor.
Do not install the drive with the EMC filter and the ground-to-phase varistor
connected to a system that they are not suitable for. If you do, it can cause
danger or damage the drive.
Do not install the drive on a corner-grounded or midpoint-grounded delta
system. Disconnecting the EMC filter and ground-to-phase varistor does not
prevent damage to the drive.
Symmetrically grounded TN-S
systems (centergrounded wye)
Do not disconnect EMC AC and
VAR wires.
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.
Disconnecting instructions
￭
EMC AC and varistor (VAR) grounding wires are located at the top of the circuit board
compartment. Disconnect them (1) and attach them with the nearby plastic clamp (2).
Move the drive to the installation site and unpack it
Move the transport package by pallet truck to the installation site.
To unpack the package:
• Cut the straps.
• Lift the lid.
EN – Quick installation and start-up guide 7
IT systems (ungrounded or high-
resistance grounded)
Disconnect EMC AC and VAR
wires.
1
1) 2)
TT systems
Disconnect VAR wire.
2
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