Electrical Data - Siemens SINAMICS G120 Hardware Installation Manual

6.2

Electrical Data

Power and motor connections
Warning
The SINAMICS G120 inverter must always be grounded.
Isolate the line supply before making or changing connections to the unit.
Ensure that the SINAMICS G120 inverter is configured for the correct supply voltage. The
SINAMICS G120 inverter must not be connected to a higher voltage supply.
When synchronous motors are connected or when coupling several motors in parallel, the
SINAMICS G120 inverter must be operated with V/f control characteristics (P1300 = 0, 2 or
3).
Caution
The control, power supply and motor cables must be laid separately. Do not feed them
through the same cable conduit or trunking.
After connecting the power and motor cables to the proper terminals, make sure that the
front covers (FSD to FSF only) have been returned to the closed position and are snapped
shut, before supplying power to the SINAMICS G120 inverter!
Notice
Ensure that the appropriate circuit-breakers/fuses with the specified current rating are
connected between the power supply and the SINAMICS G120 inverter (see Technical
data).
Use Class 1 75 °C copper wire only (for UL compliance).
For tightening torques, see Technical data.
Power Modules PM240
Hardware Installation Manual, 2006-04-04, A5E00807525B AA
Technical data
6.2 Electrical Data
6-5