Siemens SINAMICS S120 Equipment Manual page 69

Connecting the motor cables
1. Open the cabinet and remove the covers in front of the connection panel for motor cables
2. Move or remove the base plate below the connection panel through which the motor
3. Screw the protective earth (PE) onto the PE busbar at the specified points in the cabinet
4. Screw the motor cables onto the terminals.
5. Secure the motor cables on the cable propping bar to avoid placing mechanical strain on
6. When shielded motor cables are used, the shields must be secured to the EMC shield
S120 Cabinet Modules Equipment Manual
Manual, (GH5), 10/2008, A5E00427098A
(terminals U2/T1, V2/T2, W2/T3; X2).
cables are fed.
(50 Nm with M12).
Make sure that the conductors have been connected properly (U2/T1, V2/T2, W2/T3).
CAUTION
Tighten the screws with the appropriate torque (50 Nm with M12), otherwise the terminal
contacts could heat up excessively during operation.
the terminals.
bus (option M70) in an EMC-compliant manner.
Note
For the location of the connections for motor cables, see the layout diagrams included on
the enclosed customer CD.
The motor ground should be fed back directly to the cabinet (PE busbar) and connected.
Electrical installation
4.5 Connections
69