Changing The Emc Protection Level, Lc Filter, Of7Z1, 380 A - Danfoss iC7 Series Installation Manual

Installation Guide | iC7 Series Liquid-cooled System Modules
Figure 38: Level C4
4.
After the change, write "The EMC level was changed from C3 to C4", and the date on the "product modified" label. If the label is
not yet attached, attach it on the drive near the product label.

Changing the EMC Protection Level, LC Filter, OF7Z1, 380 A

4.7.3
In an IT system, to change the EMC protection level of the AC drive from C3 to C4, disconnect the LC Filter ground capacitor.
Procedure
1.
Loosen the screw of the grounding wire of the LC Filter.
2.
Remove the grounding wire from the grounding terminal.
3.
Move the cable lug of the grounding wire with the screw onto the insulator and tighten the screw (maximum 0.5 Nm (4.4 in-lb)).
Figure 39: Level C3
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