Function Module, Parallel Connection Of Chassis Power Units (Vector) - Siemens SINAMICS S120 Function Manual

Extended Functions

Function module, parallel connection of chassis power units (vector)

4.7 Function module, parallel connection of chassis power
units (vector)
4.7.1 Features
SINAMICS supports the parallel connection of power units on the motor and infeed
side to extend the power spectrum of the SINAMICS.
The main characteristics of the parallel connection are:
S Parallel connection of up to four power sections on one motor
– With parallel connection of several power units to one motor with separate
winding systems (p7003 = 1)
Note:
We recommend motors with separate winding systems.
– Connecting several power units in parallel to a motor with a single winding
system (p7003 = 0)
Caution
!
Additional information and instructions in the Equipment Manual must be carefully
taken into consideration.
S Parallel connection of up to four power sections on the infeed side (closed/open
loop)
S A CU320 can implement a maximum of one parallel connection on the mains
connection and one parallel connection on the infeed side.
S Simple commissioning, because no special parameterization is necessary.
S The power sections connected in parallel must be connected to the same
Control Unit.
S Individual power units can be diagnosed (troubleshooting) using p7000ff
4-200
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition