Connection To Mains And Earthing - Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual

3 How to Install
3.3.2 Removal of Knockouts for Extra Cables
1. Remove cable entry from the frequency converter (Avoiding foreign parts falling into the frequency converter when removing knockouts)
2. Cable entry has to be supported around the knockout you intend to remove.
3. The knockout can now be removed with a strong mandrel and a hammer.
4. Remove burrs from the hole.
5. Mount Cable entry on frequency converter.
3

3.3.3 Connection to Mains and Earthing

NB!
The plug connector for power is plugable on frequency converters up to 7.5 kW.
1. Fit the two screws in the de-coupling plate, slide it into place and tighten the screws.
2. Make sure the frequency converter is properly earthed. Connect to earth connection (terminal 95). Use screw from the accessory bag.
3. Place plug connector 91(L1), 92(L2), 93(L3) from the accessory bag onto the terminals labelled MAINS at the bottom of the frequency converter.
4. Attach mains wires to the mains plug connector.
5. Support the cable with the supporting enclosed brackets.
NB!
Check that mains voltage corresponds to the mains voltage of the name plate.
IT Mains
Do not connect 400 V frequency converters with RFI-filters to mains supplies with a voltage between phase and earth of more than
440 V.
The earth connection cable cross section must be at least 10 mm
50178.
The mains connection is fitted to the mains switch if this is included.
22
2
or 2 x rated mains wires terminated separately according to EN
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MG.33.AG.02 - VLT is a registered Danfoss trademark
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VLT AutomationDrive FC 300 Operating
Instructions