Synchronization (Vector) - Siemens SINAMICS S120 Function Manual

4.26

Synchronization (vector)

Features
S For the vector mode
S For induction motors without encoder
S Line supply sensing using the Voltage Sensing Module (VSM10) connected to
the infeed or vector (p3801)
S Connector inputs for the actual voltage sensing of the motor via VSM10 (p3816,
p3817)
S Setting a phase difference (p3809)
S Can be activated by parameter (p3802)
Description
Using the synchronizing function, it is possible to synchronize to the line supply, for
example, in order to directly transfer to the line supply after synchronization (by-
pass). An additional application is to temporarily operate the motor from the line
supply in order to be able to carry out maintenance work on the drive converter
without incurring any down times.
Synchronizing is activated using parameter p3800 and either internal or external
actual voltage sensing is selected. For the internal actual voltage sensing
(p3800 = 1), the voltage setpoints of the electrical motor model are used for syn-
chronizing. For the external actual voltage sensing (p3800 = 2), the voltage is
sensed using a VSM, this is connected between the Motor Module and Motor.
The voltage values must be transferred to the synchronization via connectors
p3816 and p3817.
Prerequisite
S Firmware release 2.4
S Drive object, vector/infeed with connected VSM10
S Induction motor without encoder
S Vector control
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
Extended Functions
Synchronization (vector)
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