Function modules

7.11 Parallel connection of chassis power units (vector)

7.11Parallel connection of chassis power units (vector)

7.11.1Features

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:

Parallel connection of up to four power units on one motor

With parallel connection of several power units to one motor with separate winding systems (p7003 = 1)

Note:

Motors with separate winding systems are recommended.

– 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.

Parallel connection of up to four power units on the infeed side (closed/open loop)

A CU320 can implement a maximum of one parallel connection on the mains connection and one parallel connection on the infeed side.

Simple commissioning, because no special parameterization is necessary.

The power units connected in parallel must be connected to the same Control Unit.

Individual power units can be diagnosed (troubleshooting) using p7000 ff

7.11.2Integration

Overview of key parameters (see SINAMICS S List Manual)

p0120 Power unit data sets (PDS) number

p0121 Power unit component number

p0602 Power unit temperature sensor with parallel connection

r7000 Parallel circuit configuration, number of active power units

r7001 Parallel circuit configuration, enable power units

r7002 Parallel circuit configuration, status power units

p7003 Parallel circuit configuration, winding system

p7010 Parallel circuit configuration, current asymmetry alarm threshold

p7011 Parallel circuit configuration, DC link voltage asymmetry alarm threshold

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Drive Functions

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 288
Image 288
Efficient Networks S120 manual Parallel connection of chassis power units vector, Features