Electrical Installation - Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual

3. How to Install

3.3. Electrical Installation

NB!
Cables General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (60/75°C) con-
ductors are recommended.
3
Aluminium Conductors
Terminals can accept aluminium conductors but the conductor surface has to be clean and the oxidation must be removed and sealed by neutral acid-
free Vaseline grease before the conductor is connected.
Furthermore the terminal screw must be retightened after two days due to softness of the aluminium. It is crucial to keep the connection a gas tight
joint, otherwise the aluminium surface will oxidize again.
Tightening-up Torque
Enclosure 200 - 240 V
A1 0.25-1.5 kW
A2 0.25-2.2 kW
A3 3-3.7 kW
A5 3-3.7 kW
B1 5.5-7.5 kW
B2 11 kW
B3 5.5-7.5 kW
B4 11-15 kW
C1 15-22 kW
C2 30-37 kW
C3 18.5-22 kW
C4 37-45 kW
3.3.1. 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.
20
380 - 500 V 525 - 690 V
0.37-1.5 kW -
0.37-4 kW 0.75-4 kW
5.5-7.5 kW 5.5-7.5 kW
5.5-7.5 kW 0.75-7.5 kW
11-15 kW -
18.5-22 kW -
11-15 kW -
18.5-30 kW -
30-45 kW -
55-75 kW -
30-37 kW -
55-75 kW -
MG.33.AB.02 - VLT is a registered Danfoss trademark
®
VLT AutomationDrive FC 300 Operating
Cable for:
Mains, Brake resistor, load sharing,
Motor cables
Mains, Brake resistor, load sharing,
Motor cables
Relay
Earth
Mains, Brake resistor, load sharing ca-
bles
Motor cables
Relay
Earth
Mains, Brake resistor, load sharing,
Motor cables
Relay
Earth
Mains, Brake resistor, load sharing,
Motor cables
Relay
Earth
Mains, Brake resistor, load sharing ca-
bles
Motor cables
Relay
Earth
Mains, motor cables
Load Sharing, brake cables
Relay
Earth
Mains, Brake resistor, load sharing,
Motor cables
Relay
Earth
Mains, motor cables
Load Sharing, brake cables
Relay
Earth
Instructions
Tightening up torque
0.5-0.6 Nm
1.8 Nm
0.5-0.6 Nm
2-3 Nm
4.5 Nm
4.5 Nm
0.5-0.6 Nm
2-3 Nm
1.8 Nm
0.5-0.6 Nm
2-3 Nm
4.5 Nm
0.5-0.6 Nm
2-3 Nm
10 Nm
10 Nm
0.5-0.6 Nm
2-3 Nm
14 Nm (up to 95 mm 2 )
24 Nm (over 95 mm 2 )
14 Nm
0.5-0.6 Nm
2-3 Nm
10 Nm
0.5-0.6 Nm
2-3 Nm
14 Nm (up to 95 mm 2 )
2
24 Nm (over 95 mm )
14 Nm
0.5-0.6 Nm
2-3 Nm