GE AF-650 GP - Brake IGBT Module Removal (Optional)

7 Electrical Installation
7.1 Connections- Unit Sizes 1x, 2x and 3x
NB!
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 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
Unit Size 200 - 240 V 380 - 480 V 525 - 690 V Cable for: Tightening up torque
0.25-1.5 kW 0.37-1.5 kW
Mains, Brake resistor, load sharing, Motor cables
0.5-0.6 Nm
12 0.25-2.2 kW 0.37-4 kW -
13 3-3.7 kW 5.5-7.5 kW -
15 3-3.7 kW 5.5-7.5 kW -
21 5.5-7.5 kW 11-15 kW - Mains, Brake resistor, load sharing, Motor cables 1.8 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
22 11 kW 18.5-22 kW 11-22 kW Mains, Brake resistor, load sharing cables 4.5 Nm
Motor cables 4.5 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
23 5.5-7.5 kW 11-15 kW - Mains, Brake resistor, load sharing, Motor cables 1.8 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
24 11-15 kW 18.5-30 kW - Mains, Brake resistor, load sharing, Motor cables 4.5 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
31 15-22 kW 30-45 kW - Mains, Brake resistor, load sharing cables 10 Nm
Motor cables 10 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
32 30-37 kW 55-75 kW 30-75 kW Mains, motor cables
14 Nm (up to 95 mm
2
)
24 Nm (over 95 mm
2
)
Load Sharing, brake cables 14 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
33 18.5-22 kW 30-37 kW - Mains, Brake resistor, load sharing, Motor cables 10 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
34 37-45 kW 55-75 kW - Mains, motor cables
14 Nm (up to 95 mm
2
)
24 Nm (over 95 mm
2
)
Load Sharing, brake cables 14 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
7.1.1 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.
AF-650 GP Design Guide
117
7