Electrical installation
4.9 Additional connections
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
145
Adapting the auxiliary power supply (-T10)
A transformer is installed in the Line Connection Module (-T10) to produce the auxiliary
voltages of the enclosed drive. The location of the transformer is indicated in the layout
diagrams supplied.
When delivered, the taps are always set to the highest level. The line-side terminals of the
transformer may need to be reconnected according to the existing line voltage.
The tables below show the appropriate transformer setting for the control power supply
based on the existing line voltage.
Table 4- 46 Line voltage assignment for the internal power supply (380 to 480 V 3 ph. AC)
Line voltage range
Tap
Adaptation transformer taps (-T10) LH1 – LH2
342 ... 390 V
380 V
1 - 2
391 ... 410 V
400 V
1 – 3
411 ... 430 V
415 V
1 – 4
431 ... 450 V
440 V
1 – 5
451 ... 470 V
460 V
1 – 6
471 ... 528 V
480 V
1 – 7
Table 4- 47 Line voltage assignment for the internal power supply (3 phase 500 ... 690 V AC)
Line voltage range
Tap
Adaptation transformer taps (-T10) LH1 – LH2
450 ... 515 V
500 V
1 - 8
516 ... 540 V
525 V
1 – 9
541 ... 560 V
550 V
1 – 10
561 ... 590 V
575 V
1 – 11
591 ... 630 V
600 V
1 – 12
631 ... 680 V
660 V
1 to 14, terminals 12 and 13 are jumpered
681 ... 759 V
690 V
1 to 15, terminals 12 and 13 are jumpered
Once the jumpers have been set, the secondary voltage should be 230 V AC.
NOTICE
Property damage due to voltage set too high
If the terminals are not reconnected to the actual line voltage, this can result in damage to
the device when the voltage is set too high.
•
Set the terminals in accordance with the actual line voltage.
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