Electrical installation
4.6 Power connections
Drive converter cabinet units
54 Operating Instructions, 07/07, A5E00288214A
Note
If an incorrect rotating field was connected when the cables were installed, and the rotating
field cannot be corrected by swapping the motor cables, it can be corrected when
commissioning the drive via p1821 (rotating field direction reversal) by changing the rotating
field and thus enabling a direction reversal (see section "Direction reversal").
With motors that can be operated in a star/delta configuration, the windings must be checked
to ensure that they have been connected properly. Please refer to the relevant
documentation for the motor and note the required insulation voltage for operating the
cabinet unit.
4.6.3 Adjusting the fan voltage (-G1 -T10, -U1 -T10)
The power supply for the device fans (230 V 1 AC) in the Active Line Module (-G1 -T10) and
in the Motor Module (-U1 -T10) is generated from the main supply system by means of
transformers.
The locations of the transformers are indicated in the layout diagrams supplied.
The transformers are fitted with primary taps so that they can be fine-tuned to the rated
supply voltage. When delivered, the taps are always set to the highest level. With a low
supply voltage, the appropriate transformer tap must be activated.
Note
Two transformers (-G1 –T10 and -T20 or -U1 –T10 and -T20) are installed in the following
cabinet units. The two primary terminals on these devices must be set together.
• With 380 V – 480 V 3 AC:
6SL3710-7LE36-1AA0, 6SL3710-7LE37-5AA0, 6SL3710-7LE38-4AA0, 6SL3710-7LE41-
0AA0, 6SL3710-7LE41-2AA0, 6SL3710-7LE41-4AA0
• With 660 V – 690 V 3 AC:
6SL3710-7LH34-1AA0, 6SL3710-7LH34-7AA0, 6SL3710-7LH35-8AA0, 6SL3710-7LH37-
4AA0, 6SL3710-7LH38-1AA0, 6SL3710-7LH38-8AA0, 6SL3710-7LH41-0AA0, 6SL3710-
7LH41-3AA0
• With 500 V – 600 V 3 AC:
6SL3710-7LG34-1AA0, 6SL3710-7LG34-7AA0, 6SL3710-7LG35-8AA0, 6SL3710-
7LG37-4AA0, 6SL3710-7LG38-1AA0, 6SL3710-7LG38-8AA0, 6SL3710-7LG41-0AA0,
6SL3710-7LG41-3AA0
The setting terminals must be connected to "0" and the supply voltage.
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