1000 V DC,
> 100 Mohm
U1-PE, V1-PE, W1-PE
ohm
M
3~
U1
V1
W1
PE
Grounding system compatibility check
The standard drive can be an be installed to a symmetrically grounded TN-S system.
For other systems, see sections EMC filter option +E200 or +E202 and Ground-to-phase
varistors below.
￭ EMC filter option +E200 or +E202
A drive with EMC filter options +E200 and +E202 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. See section When to disconnect EMC filter
(options +E200 and +E202) or ground-to-phase varistor: TN-S, IT, corner-grounded
delta and midpoint-grounded delta systems and TT systems (page 86).
WARNING!
Do not install the drive with the EMC filter options +E200 and +E202 connected
to a system that the filter is not suitable for. This can cause danger, or damage
the drive.
Note: When EMC filter +E200 or +E202 is disconnected, the drive EMC compatibility
is considerably reduced.
￭ Ground-to-phase varistors
A standard drive with 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 varistor. See sections When to disconnect EMC filter (options
+E200 and +E202) or ground-to-phase varistor: TN-S, IT, corner-grounded delta and
midpoint-grounded delta systems and TT systems (page 86).
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.
Electrical installation – IEC 85
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