Operating instructions

Electrical installation
4.6 Power connections
Drive converter cabinet units
Operating Instructions, 10/2008, A5E00288214A
59
4.6.4 Adjusting the internal power supply (-A1-T10)
A transformer is installed in the Line Connection Module (-A1-T10) to produce the internal
230 V AC supply voltage for the cabinet unit. 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 to the existing line voltage.
The line voltage assignments for making the appropriate setting on the transformer for the
internal power supply are indicated in the following tables.
NOTICE
If the terminals are not reconnected to the actual line voltage, the internal power supply will
not be correct.
Table 4- 6 Line voltage assignments for the internal power supply (380 V – 480 V 3 AC)
Line voltage range Tap Taps of voltage adaptation transformer (-A1-T10) LH1 – LH2
342 V – 390 V 380 V 1 - 2
391 V – 410 V 400 V 1 – 3
411 V – 430 V 415 V 1 – 4
431 V – 450 V 440 V 1 – 5
451 V – 470 V 460 V 1 – 6
471 V – 528 V 480 V 1 – 7
Table 4- 7 Line voltage assignments for the internal power supply (500 V – 690 V 3 AC)
Line voltage range Tap Taps of voltage adaptation transformer (-A1-T10) LH1 – LH2
450 V – 515 V 500 V 1 - 8
516 V – 540 V 525 V 1 – 9
541 V – 560 V 550 V 1 – 10
561 V – 590 V 575 V 1 – 11
591 V – 630 V 600 V 1 – 12
631 V – 680 V 660 V 1 – 14, terminals 12 and 13 are jumpered
681 V – 759 V 690 V 1 – 15, terminals 12 and 13 are jumpered