V/f control (vector control)
6.5 Vdc control
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
307
6.5
Vdc control
The "Vdc control" function can be activated using the appropriate measures if an overvoltage
or undervoltage is present in the DC link.
Figure 6-7
V
dc control
V/f
Undervoltage in the DC link
●
Typical cause:
Failure of the supply voltage or supply for the DC link.
●
Remedy:
Specify a regenerative torque for the rotating drive to compensate the existing losses,
thereby stabilizing the voltage in the DC link (kinetic buffering).
Summary of Contents for SINAMICS S120
Page 1: ......
Page 2: ......
Page 24: ...Contents Drive functions 24 Function Manual 11 2017 6SL3097 4AB00 0BP5 ...
Page 932: ......
Page 1094: ......