Siemens SINAMICS S150 NEMA, Operating Instructions Manual, Page: 76 / 862

Electrical installation
4.6 Power connections
Enclosed Drives
74
Operating Instructions, 12/2018, A5E36652151A
Note
Information on the phase sequence
If an incorrect phase sequence was connected when the motor was connected, p1821
(phase sequence direction reversal) can be used to correct the incorrect phase sequence
without physically changing it over (see "Functions, monitoring and protective functions/
direction reversal").
With motors that can be star-connected or delta-connected, it must be ensured that the
windings are interconnected consistent with the operating voltage indicated on the rating
plate or in the motor documentation. Make sure that the winding insulation of the connected
motor has sufficient insulation strength to meet the requirements for converter operation.
4.6.5 Adjusting the fan voltage (-G1-T10, -T1-T10)
The power supply for the device fans (230 V 1 AC) in the Active Line Module (-G1-T10) and
in the Motor Module (-T1-T10) is generated from the main supply system using transformers.
The positions of the transformers are shown in the layout diagrams provided.
The transformers are equipped with taps on the primary side to finely adjust to the rated line
supply voltage.
If necessary, the connection fitted in the factory, shown with a dashed line, must be
reconnected to the actual line voltage.
Note
Cabinet units with two transformers
Two transformers (-G1-T10 and -G1-T20 or -T1-T10 and -T1-T20) are installed in the
following cabinet units. The two primary terminals on these devices must be set together.
• for 3 AC 380 ... 480 V:
6SL3710-7LE36-1AU3, 6SL3710-7LE37-5AU3, 6SL3710-7LE38-4AU3,
6SL3710-7LE41-0AU3, 6SL3710-7LE41-2AU3, 6SL3710-7LE41-4AU3
•
for 3 AC 500 ... 690 V:
6SL3710-7LG34-1AU3, 6SL3710-7LG34-7AU3, 6SL3710-7LG35-8AU3,
6SL3710-7LG37-4AU3, 6SL3710-7LG38-1AU3, 6SL3710-7LG38-8AU3,
6SL3710-7LG41-0AU3, 6SL3710-7LG41-3AU3