Example Of A Star/Delta Switchover - Siemens SINAMICS S120 Function Manual

4.10.4

Example of a star/delta switchover

Prerequisites:
S Initial commissioning is complete.
S 2 motor data sets (MDS), p0130 = 2
S 2 drive data sets (DDS), p0180 = 2
S 2 digital outputs for controlling the auxiliary contactor
S 2 digital inputs for monitoring the auxiliary contactor
S 1 free speed monitoring (p2155)
S 2 auxiliary contactors with auxiliary contacts (1 NO contact)
S 2 motor contactors with positively-driven auxiliary contacts (1 NC contacts,
1 NO contact)
S 1 motor, 1 Control Unit, 1 infeed, and 1 Motor Module
Fig. 4-9
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
U1
M
V1
~
3
W1
Example: star/delta switchover
r0830
r0830.1
r0830.2
p0831[0]
p0831[1]
K1 K2
U2
V2
W2
Extended Functions
Motor changeover
K1H K2H
K1
K2
K1 K2
K1H K2H
K2 K1
4-211