Grounding system compatibility check
The standard drive with no EMC filter 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. 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 and +E202 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 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
Electrical installation 111
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