Siemens SIROTEC Function Manual

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).

Siemens SIROTEC Specifications

General

Brand	Siemens
Model	SIROTEC
Category	DC Drives
Language	English