Electrical Installation; Removal Of Knockouts For Extra Cables; Connection To Mains And Earthing - Danfoss FC 300 Operating Instructions Manual

FC 300 Operating Instructions

Electrical Installation

NB!:
Cables General
Always comply with national and local regulations on cable cross-sections.
Tightening-up Torque
FC size
0.25-7.5 kW
11-15 kW
11-15 kW

Removal of Knockouts for Extra Cables

Remove cable entry from the frequency converter (Avoiding foreign parts in the
1.
frequency converter when removing knockouts)
Cable entry has to be supported around the knockout you intend to remove.
2.
The knockout can now be removed with a strong mandrel and a hammer.
3.
Remove burrs from the hole.
4.
Mount Cable entry on frequency converter.
5.

Connection to Mains and Earthing

NB!:
The plug connector for power can
be removed.
Make sure the FC 300 is properly earthed.
1.
Connect to earth connection (terminal 95).
Use screw from the accessory bag.
Place plug connector 91, 92, 93 from the
2.
accessory bag onto the terminals labelled
MAINS at the bottom of FC 300.
Connect mains wires to the mains
3.
plug connector.
The earth connection cable cross
section must be at least 10 mm
or 2 rated mains wires terminated
separately according to EN 50178.
The mains connection is fitted to the main
switch if this is included.
How to Install
Cable for:
Line, Brake resistor, load sharing Motor
cable
Line, Brake resistor, load sharing Motor
cable
Motor cable
Relay
Earth
2
MG.33.A5.02 - VLT is a registered Danfoss trademark
Tightening up torque
0.5-0.6 Nm
1.8 Nm
1.8 Nm
1.8 Nm
0.5-0.6 Nm
2-3 Nm
How to connect to mains and earthing (A2
and A3 enclosure).
15