Connecting The Motor And Power Cables - Siemens SINAMICS G130 Operating Instructions Manual

Electrical installation
4.7 Power connections
Note
Shielded cables
The PROTOFLEX-EMV-3 PLUS shielded cable recommended by Siemens is the protective
conductor and comprises three symmetrically-arranged protective conductors. The individual
protective conductors must each be provided with cable eyes and be connected to ground.
The cable also has a concentric flexible braided copper shield. To comply with EN 61800-3
regarding radio interference suppression, the shield must be grounded at both ends with the
greatest possible surface area.
On the motor side, cable glands that contact the shield with the greatest possible surface
area are recommended for the terminal boxes.
4.7.3

Connecting the motor and power cables

Connecting the motor and power cables on the Power Module
1. If necessary, remove the covers or front covers in front of the connection panel for motor
cables (terminals U2/T1, V2/T2, W2/T3; X2) and power cables (terminals U1/L1, V1/L2,
W1/L3; X1).
2. Screw the protective earth (PE) into the appropriate terminal (with earth symbol) (50 Nm
for M12) at the points provided in the cabinet.
3. Connect the line and motor cables to the terminals.
Make sure that you connect the conductors in the correct sequence: U2/T1, V2/T2,
W2/T3 and U1/L1, V1/L2, W1/L3!
NOTICE
Material damage due to loose power connections
Insufficient tightening torques or vibration can result in faulty electrical connections. This
can result in damage due to fire or malfunctions.
• Tighten all power connections with the specified tightening torques, e.g. line supply
• Regularly check all power connections by retightening them with the specified tightening
Note
PE connection of the motor
The PE connection on the motor must be guided back directly to the Power Module and
connected there.
60
connection, motor connection, DC link connections.
torque. This applies in particular after transport.
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A