Line Supply Connections; Adjusting The Fan Voltage - Siemens SINAMICS S120 Manual

Electrical installation
4.4 Connections
4.4.6

Line supply connections

Line Connection Modules
The line supply is connected in the Line Connection Module at terminal X1.
Table 4- 10
Terminals
U1/L1, V1/L2, W1/L3
3 AC power input
4.4.7

Adjusting the fan voltage

A transformer is incorporated in the Motor Module in the chassis format (-T1-T10) and/or
Basic Line Module/Smart Line Module/Active Line Module (-T2-T10) for setting the correct
operating voltage for the 230 V fans. The locations of the transformers are indicated in the
layout diagrams supplied.
The transformer is fitted with line-side taps so that it can be fine-tuned to the line voltage.
When delivered, the taps are always set to the highest level. With a lower line voltage, the
appropriate transformer tap must be activated on the transformer. The neutral conductor is
left on terminal "0" and the phase is clamped to the existing line voltage.
Note
The position of the setting terminals for the fan transformers is provided in chapter "Cabinet
Modules in the design descriptions of the appropriate modules.
Note
In the case of Smart Line Modules, Active Line Modules, and Motor Modules with "HX" and
"JX" frame sizes, two transformers are incorporated (-T10/-T11). The two line-side terminals
on each of these devices must be adjusted together.
78
Line supply connection, Line Connection Modules
Technical data
Voltage:
3 AC 380 V -10 % to 3 AC 480 V +10 % (-15 % < 1 min)
3 AC 500 V -10 % to 3 AC 690 V +10 % (-15 % < 1 min)
Connecting thread:
M12/50 Nm for ring cable lugs to DIN 46234
Cabinet Modules
Manual, (GH5), 05/2010, A5E03263538A