Danfoss VLT AutomationDrive FC 301 Design Guide

WARNING
LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
frequency converter properly could result in death or
serious injury.
•
Ensure correct grounding of the equipment by
a certified electrical installer.
9.2 Cables
NOTICE
Cables General
All cabling must comply with national and local
regulations on cable cross-sections and ambient
temperature. Copper (75 °C) conductors are
recommended.
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
2 days due to softness of the aluminium. It is crucial to
keep the connection a gas tight joint, otherwise the
aluminium surface oxidises again.
9.2.1 Tightening Torque
Enclosure
Type
200-240 V
[kW]
380-500 V
[kW]
525-690 V
[kW]
Cable for Tightening-up torque
[Nm]
A1 0.25-1.5 0.37-1.5 -
Mains, Brake resistor, load sharing, Motor cables 0.5-0.6
A2 0.25-2.2 0.37-4 -
A3 3-3.7 5.5-7.5 1.1-7.5
A4 0.25-2.2 0.37-4
A5 3-3.7 5.5-7.5 -
B1 5.5-7.5 11-15 -
Mains, Brake resistor, load sharing, Motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B2 11 18.5-22 11-22
Mains, Brake resistor, load sharing cables 4.5
Motor cables 4.5
Relay 0.5-0.6
Ground 2-3
B3 5.5-7.5 11-15 -
Mains, Brake resistor, load sharing, Motor cables 1.8
Relay 0.5-0.6
Ground 2-3
B4 11-15 18.5-30 11-30
Mains, Brake resistor, load sharing, Motor cables 4.5
Relay 0.5-0.6
Ground 2-3
C1 15-22 30-45 -
Mains, Brake resistor, load sharing cables 10
Motor cables 10
Relay 0.5-0.6
Ground 2-3
C2 30-37 55-75 30-75
Mains, motor cables
14 (up to 9 5mm
2
)
24 (over 95 mm
2
)
Load Sharing, brake cables 14
Relay 0.5-0.6
Ground 2-3
C3 18.5-22 30-37 37-45
Mains, Brake resistor, load sharing, Motor cables 10
Relay 0.5-0.6
Ground 2-3
C4 37-45 55-75 -
Mains, motor cables
14 (up to 95 mm
2
)
24 (over 95 mm
2
)
Load Sharing, brake cables 14
Relay 0.5-0.6
Ground 2-3
Table 9.1 Tightening Torque for Cables
Electrical Installation
VLT
®
AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
MG33BF02 - Rev. 2013-12-20 113
9 9

Danfoss VLT AutomationDrive FC 301 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 301
Category	DC Drives
Language	English