Electrical Installation; Removal Of Knockouts For Extra Cables; Connection To Line Supply And Grounding - Danfoss FC 300 Design Manual

FC 300 Design Guide

Electrical Installation

"
NOTE
Cables General
Always comply with national and local regulations on cable cross-sections.
Tightening-up Torque
AFD size
0.34-10 HP [0.25-7.5
kW]
14.75-10 HP [11-15
kW]
14.75-10 HP [11-15
kW]

Removal of Knockouts for Extra Cables

"
Remove the cable entry from the adjustable frequency drive (avoid foreign parts entering
1.
the adjustable frequency drive when removing knockouts).
The cable entry must be supported around the knockout you intend to remove.
2.
The knockout can now be removed with a strong mandrel and a hammer.
3.
4. Remove burrs from the hole.
Mount cable entry on adjustable frequency drive.
5.

Connection to Line Supply and Grounding

"
NOTE
The plug connector for power can
be removed.
Make sure the FC 300 is properly grounded.
1.
Connect to ground connection (terminal 95).
Use screw from the accessory bag.
Place plug connector 91, 92, 93 from the
2.
accessory bag onto the terminals labeled
MAINS at the bottom of the FC 300.
Connect line wires to the line plug connector.
3.
The ground connection cable cross-section
must be at least 3.9 in
have 2 rated line supply wires terminated
separately according to EN 50178.
The line supply connection is fitted to the line
supply 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
Ground
2 [10 mm 2 ] or
MG.33.B6.22 - 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
97