Direction Of Motor Rotation - Siemens SINAMICS S150 NEMA Operating Instructions Manual

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NOTICE
Property damage due to loose power connections
Insufficient tightening torques or vibrations can result in faulty electrical connections.
This can cause fire damage or malfunctions.
• Tighten all power connections with the specified tightening torques, e.g. power
• Regularly check all power connections by retightening them with the prescribed
Note
PE connection of the motor
The motor ground (PE) must be routed directly to the drive enclosure.

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 2 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- 4
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).
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
connection, motor connection, and DC link connections.
tightening torque. This applies in particular after transport.
Cabinet unit and motor connection terminals
Cabinet unit (connection terminals)
U2/T1
V2/T2
W2/T3
Electrical installation
4.6 Power connections
Motor (connection terminals)
U
V
W
73

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