Siemens SINAMICS SM150, Operating And Installation Instructions

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Note
To route the power cables from above into the cabinet, remove the cover plate at the top of
the cabinet.
NOTICE
Danger of thermal damage
Inadequately fastened cables at the connection point represent a high electrical transfer
resistance that can cause thermal damage (contact erosion) during operation.
Tighten the screws with the specified torque.
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
ʪ
Figure 6-5 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).
Electrical connection
6.5 Connection
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017
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