Setting The Fan Transformer - Siemens Simovert Masterdrives Operating Instructions Manual

Connecting-up
7.3

Setting the fan transformer

NOTICE
Connecting the fan
transformer
NOTICE
7-16
The fan for cooling the unit is supplied with 230 V by the fan
transformer. The primary side of the fan transformer has several
tappings and has to be connected up according to the current line
voltage. In the default setting the fan transformer is set for the highest
permissible line voltage.
The following table shows how the existing line voltage is assigned for
adjustment by the fan transformer.
Supply voltage
3 AC 380 V
3 AC 400 V
3 AC 415 V
3 AC 425 V
3 AC 440 V
3 AC 460 V
3 AC 480 V
Table 7-10 Connecting the fan transformer
Converters with a supply voltage of 380 - 480 V AC 3-phase can be
parameterized such as to enable operation at 200 V - 230 V AC
3-phase.
In this case the fan transformer has to be disconnected from the input
busbars U and V.
The fan has to be supplied via the terminal strip -X18 with 230 V AC
single-phase.
For this purpose remove the existing cables from -X18/1 and -X18/5
(= secondary side of the fan transformer) and connect the 230 V at this
point in accordance with the following table. Insulate the ends of the
disconnected cables and fasten them such that they cannot cause a
short-circuit or earth fault.
Rated input voltage
3 AC 380 V (- 15 %) to 480 V (+ 10 %)
Transformer tappings
380 V
400 V
400 V
400 V
440 V
460 V
460 V
6SE7087-6JD50
Operating Instructions SIMOVERT MASTERDRIVES
08.2009
Siemens AG