Danfoss VLT HVAC Drive FC 100 Series Design Manual page 83

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VLT HVAC Drive Design Guide
Illustration 5.6: Mounting of bottom plate, E1 enclosure.
The bottom plate of the E1 enclosure can be mounted from either in- or outside of the enclosure, allowing flexibility in the installation process, i.e. if
mounted from the bottom the glands and cables can be mounted before the frequency converter is placed on the pedestal.
5.2.7. Connection to Mains and Earthing
NB!
The plug connector for power can be removed.
1. Make sure the frequency converter is properly earthed. Connect to earth connection (terminal 95). Use screw from the accessory bag.
2. Place plug connector 91, 92, 93 from the accessory bag onto the terminals labelled MAINS at the bottom of the frequency converter.
3. Connect mains wires to the mains plug connector.
The earth connection cable cross section must be at least 10 mm
The mains connection is fitted to the main switch if this is included.
NB!
Check that mains voltage corresponds to the mains voltage of the frequency converter 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.
For IT mains and delta earth (grounded leg), mains voltage may exceed 440 V between phase and earth.
2 or 2 rated mains wires terminated separately according to EN 50178.
MG.11.B7.02 - VLT ® is a registered Danfoss trademark
5. How to Install
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