Grounding system compatibility check
The standard drive 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. See ACS880 frames R1 to R11 EMC filter and ground-to-phase
varistor disconnecting instructions (3AUA0000125152 [English]).
WARNING! Do not install the drive with EMC filter options +E200 or +E202
connected to a system that the filter is not suitable for. This can cause danger, or
damage the drive.
WARNING! Do not install the drive with the ground-to-phase varistor connected
to a system that the varistor is not suitable for. If you do, the varistor circuit can
be damaged.
￭ Corner-grounded and midpoint-grounded 525…690 V delta systems
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.
Connecting the power cables
￭ Connection diagram with conduits
This diagram shows power cable connections when conduits are used. For connections
with shielded cables, see chapter Electrical installation – IEC (page 89).
118 Electrical installation – North America
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