Siemens SINAMICS S120 Manual page 87

5. Secure the motor cables on the cable propping bar to avoid placing mechanical strain on
the terminals.
6. When shielded motor cables are used, the shields must be secured to the EMC shield
bus (option M70) in an EMC-compliant manner.
Note
PE connection of the motor
The PE connection on the motor must be guided back directly to the cabinet unit and
connected there.
Connection cross-sections
Refer to the "Technical data" for the Motor Modules, Chapter "Cabinet Modules" for the
maximum connection cross-sections.
Direction of motor rotation
EN 60034-7 defines the two ends of an electric motor as follows:
● DE (Drive End): Usually the drive end of the motor
● NDE (Non-Drive End): Usually the non-drive end of the motor
An electric motor will rotate clockwise if the shaft is turning clockwise when looking at the DE
side.
For electric motors with two shaft ends, the direction of rotation must be determined based
on the shaft end specified as the drive end.
For clockwise rotation, the electric motor must be connected according to the following table.
Table 4- 9
In contrast to the connection for the clockwise phase sequence, two phases have to be
reversed with a counter-clockwise phase sequence (looking at the drive shaft).
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
Cabinet and motor connection terminals
Cabinet (motor connection terminals)
U2/T1
V2/T2
W2/T3
Electrical installation
4.5 Connections
Motor (connection terminals)
U
V
W
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