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
Frame size 200 - 240 V 380 - 500 V
A1 0.25-1.5 kW 0.37-1.5 kW
A2 0.25-2.2 kW 0.37-4 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.
4. Remove burrs from the hole.
5. Mount Cable entry on frequency converter.
16
525 - 690 V Cable for:
- Mains, Brake resistor, load sharing, Motor cables
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 - Mains, Brake resistor, load sharing, Motor cables
Relay
Earth
18.5-22 kW - Mains, Brake resistor, load sharing cables
Motor cables
Relay
Earth
11-15 kW - Mains, Brake resistor, load sharing, Motor cables
Relay
Earth
18.5-30 kW - Mains, Brake resistor, load sharing, Motor cables
Relay
Earth
30-45 kW - Mains, Brake resistor, load sharing cables
Motor cables
Relay
Earth
55-75 kW - Mains, motor cables
Load Sharing, brake cables
Relay
Earth
30-37 kW - Mains, Brake resistor, load sharing, Motor cables
Relay
Earth
55-75 kW - Mains, motor cables
Load Sharing, brake cables
Relay
Earth
MG.33.AC.02 - VLT is a registered Danfoss trademark
®
VLT AutomationDrive FC 300 Operating
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
24 Nm (over 95 mm
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
24 Nm (over 95 mm
14 Nm
0.5-0.6 Nm
2-3 Nm
Instructions
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