Siemens SINAMICS SM150 - Table 6-3 Drive and Motor Connection Terminals

1. Screw the protective ground at the provided locations in the cabinet to the appropriate
connection with the ground symbol.
Note
Connect the motor cables first and then the power cables.
2. Connect the infeed cable to the supply-system connection busbar.
8
:
9
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Figure 6-6 Connection of the supply-system power cable
3. Screw the individual phases of the motor cable to the connections below of the output
phases.
Observe the following connection sequence of the conductors: U1, V1, W1
Direction of motor rotation
Connect asynchronous machines with clockwise phase sequence (looking at the drive shaft) to
the drive as follows:
Table 6-3 Drive and motor connection terminals
Drive (connection terminals) Motor (connection terminals)
U2/T1 U
V2/T2 V
W2/T3 W
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).
Note
If an incorrect phase sequence was connected during the cable installation and it cannot be
corrected by a subsequent swapping of the motor cables, you have two possibilities:
● Change the phase sequence by entering a negative setpoint.
● Change the phase sequence with the drive parameterization.
Note
Interconnect the windings for motors that can be operated in star-delta correctly. To do this,
read the motor documentation. Observe the required isolation voltage for the operation of the
drive.
Electrical connection
6.5 Connection
SINAMICS SM150 6SL3845-7NN46-7AA2
96 Operating Instructions Rev.201910281345 EXAMPLE