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Electrical installation
4.6 Power connections
Table 4- 8
4.6.7
Removing the connection clip to the basic interference suppression module for
operation on an ungrounded supply system (IT system)
If the cabinet unit is operated on an ungrounded supply system (IT system), the connection
clip for the basic interference suppression module of the Active Interface Module (-R2) must
be removed.
Note
Warning label on the connection clip
A yellow warning label is attached to each connection clip so that it is easier to find.
• The warning label must removed from the connection clip (by pulling it off) if the
connection clip is to remain in the unit (operation on a grounded line supply).
• The warning label must be removed together with the connection clip if the unit is
operated on a non-grounded line supply (IT system).
Figure 4-7
NOTICE
Damage to the device through not removing the connection clip with a non-grounded line
supply
Failure to remove the connection clip to the basic interference suppression module on a
non-grounded line supply (IT system) can cause significant damage to the device.
• With a non-grounded line supply (IT system), remove the connection clip to the basic
74
Line voltage assignments for the internal power supply (3 AC 500 ... 690 V)
Line voltage range
450 ... 515 V
516 ... 540 V
541 ... 560 V
561 ... 590 V
591 ... 630 V
631 ... 680 V
681 ... 759 V
Warning label on the connection clip
interference suppression module.
Tap
Adaptation transformer taps (-T10)
500 V
525 V
550 V
575 V
600 V
660 V
1 – 14, terminals 12 and 13 are jumpered
690 V
1 – 15, terminals 12 and 13 are jumpered
Operating Instructions, 11/2017, A5E36652151A
LH1 – LH2
1 - 8
1 – 9
1 – 10
1 – 11
1 – 12
Converter cabinet units
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