Electrical Connection - Siemens SINAMICS S120 Manual

4.5

Electrical connection

Adjusting the fan voltage (-T10)
The power supply for the device fans (1 AC 230 V) in the Motor Module (-T10) is taken from
the line supply using transformers. The installation position of the transformers is indicated in
the interface descriptions.
The transformers are fitted with primary taps so that they can be fine-tuned to the line supply
voltage.
If necessary, the connection fitted in the factory, shown with a dashed line, must be
reconnected to the actual line voltage.
Note
Two transformers for Motor Modules of frame size JX
Two transformers (T10 and -T20) are installed in Motor Modules frame size JX. The two
primary-side terminals on each of these devices must be adjusted together.
Figure 4-10
The supply voltage assignments for making the appropriate setting on the fan transformer
are indicated in the following tables (factory presetting: 480 V / 0 V or 690 V / 0 V).
Note
With the 3 AC 500 V to 690 V fan transformer, a jumper is inserted between the "600 V"
terminal and "CON" terminal. The jumper between terminal "600 V" and "CON" is for internal
use.
NOTICE
Consequences of incorrect voltage setting
If the terminals are not reconnected to the actual line voltage:
• The required cooling level will not be provided (risk of overheating).
• The fan fuses may blow (overload).
Chassis power units
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
Setting terminals for the fan transformers (3 AC 380 to 480 V / 3 AC 500 to 690 V
Motor Modules
4.5 Electrical connection
195