Siemens SINAMICS G130 - Connecting the Motor and Power Cables

Electrical installation
4.7 Power connections
Inverter chassis units
60 Operating Instructions, 07/2016, A5E00331449A
Note
Shielded cables
The PROTOFLEX
-EMV-3 PLUS shielded cable recommended by Siemens is the protective
cond
uctor 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 ter
minal 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
connection, motor connection, DC link connections.
• Regularly check all power connections by retightening them with the specified tightening
torque. This applies in particular after transport.
Note
PE connection of the motor
The PE connection on the motor must be guided back directly to the Power Module and
connected there
.