6
vacon • 58
Commissioning
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
6.2
Changing EMC protection class
If your supply network is an IT (impedance-grounded) system but your AC drive is EMC-protected
according to class C1 or C2 you need to modify the EMC protection of the AC drive to EMC-level T
(C4). This is done as described below:
6.2.1
Changing EMC protection class - MU2 three-phase version
Figure 41.Changing of the EMC class in MU2 control unit.
Warning! Do not perform any modifications on the AC drive when it is connected
to mains.
1
Remove the three screws on the EMC plate from the unit.
