B&R ACOPOSinverter P84, User Manual

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Installation guide
90 ACOPOSinverter P84 User's Manual 2.10
1.3.17 Operation in IT system or distribution network with grounding of the type "cor-
ner-grounded"
IT system: Isolated or impedance-grounded neutral conductor. Use a permanent insulation monitoring that is
compatible with non-linear loads
Distribution network with grounding of the type "corner-grounded": System with a grounded phase
All inverters of the type 8I84T4*****.01P-1 and 8I84T200037.01P-1 to 8I84T200750.01P-1 contain integrated EMC
filters. When operating the inverter in an IT system, the connection between these filters and the ground can be
disconnected as shown in the following figure. The separation of this connection is possible but not mandatory.
Remove the jumper plug on the left side of the power terminals (two jumpers for 8I84T402200.01P-1).
Normal
(Filters
connected)
IT Mains
(Filters
disconnected)
8I84T402200.01P-1
Caution!
RISK OF DAMAGE TO FREQUENCY INVERTER
If the models 8I84T400075.01P 1 to 8I84T400400.01P-1 are not connected to the filter, the switching
frequency of the inverter is not permitted to exceed 4 kHz. For information on setting the corresponding
parameter, refer to the programming instructions.
Failure to follow these instructions can result in injury and/or equipment damage.