Electrical Installation; Cables General; Removal Of Knockouts For Extra Cables - Danfoss VLT CDS302 Operating Instructions Manual

How to Install

3.3 Electrical Installation

3.3.1 Cables General

CAUTION
Cables general:
Always comply with national and local regulations on
cable cross-sections.
Frame 200-240 V 380-500 V
size [kW] [kW]
B1 5.5-7.5 11-15
B2 11 18.5-22
B3 5.5-7.5 11-15
B4 11-15 18.5-30
Table 3.5 Tightening-up Torque
3.3.2 Removal of Knockouts for Extra
Cables
•
Remove cable entry from the frequency converter
(Avoiding foreign parts in the frequency
converter when removing knockouts)
•
Cable entry has to be supported around the
knockout that is to be removed
•
The knockout can now be removed with a strong
mandrel and a hammer
•
Remove burrs from the hole
•
Mount cable entry on frequency converter
3.3.3 Mains Connection for B1, B2 and B3
NOTE
Frequency converter sizes differ, but terminal numbers are
always the same. Incoming power is always 91, 92, 93
labeled L1, L2, L3.
MG34M302 - VLT
Operating Instructions VLT
525-690 V Cable for
[kW]
Mains, Motor cables
15 Relay
Earth
Mains
Motor cables
18.5-22
Relay
Earth
Mains, Motor cables
15 Relay
Earth
Mains, Motor cables
18.5-22 Relay
Earth
®
is a registered Danfoss trademark/Commercial Compressor
®
CDS302 and CDS303
Illustration 3.6 How to Connect to Mains and Earthing for B1
and B2
Tightening up torque
[Nm]
1.8
0.5-0.6
2-3
4.5
4.5
0.5-0.6
2-3
1.8
0.5-0.6
2-3
4.5
0.5-0.6
2-3
17
3 3