Fast Magnetization For Induction Motors - Siemens SINAMICS S120 Function Manual

Vector control

6.16 Fast magnetization for induction motors

6.16 Fast magnetization for induction motors
Function description
For crane applications, frequently a frequency converter is switched alternately to different
motors. After being switched to a different motor, a new data set must be loaded in the
frequency converter and the motor magnetized. This can result in excessive waiting times
which can be significantly reduced by means of quick magnetization.
Features
● Application for induction motors in closed-loop vector control
● Rapid flux build-up by injecting a field-generating current at the current limit, which
considerably reduces the magnetization time
● The "flying restart" function continues working with parameter p0346 (magnetization time)
● Magnetizing is not dependent on a brake configuration (p1215) as it is with servo drives
Characteristics
The following figure shows the characteristics for quick magnetizing.
Figure 6-22
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Quick magnetization characteristics
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions