Siemens SINAMICS G115D

Setting the dynamic braking
Param‐
eter
Description Setting
p0219 Braking power of the
braking resistor [kW]
For p0219>0, the converter deactivates the VDC_max controller.
For vector control, p0219 de󹪝nes the regenerative power limit
p1531.
3
PD[
3
W
S
Using p0219, you de󹪝ne the maximum braking power that the
braking resistor must absorb.
For an excessively low braking power, the converter extends the
motor ramp-down time.
Factory setting: dependent upon the nominal power of the drive
p0212.
8
Power unit con󹪝gura‐
tion
If necessary, reduce the activation threshold for the braking resistor.
p0210 Unit supply voltage [V] Sets the drive supply voltage.
Factory setting: 400
An application example for con󹪝guring a drive with braking resistor is provided in the
Internet:
Engineering and commissioning series lifting equipment/cranes (https://
support.industry.siemens.com/cs/ww/en/view/103156155)
7.22 Overcurrent protection
Overview
The U/f control prevents too high a motor current by in󹪞uencing the output frequency and
the motor voltage (I_max controller).
Requirement
You have selected U/f control.
The application must allow the motor torque to decrease at a lower speed.
Function description
The I_max controller in󹪞uences the output frequency and the motor voltage.
If the motor current reaches the current limit during acceleration, the I_max controller
extends the acceleration operation.
Advanced commissioning
7.22Overcurrent protection
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA 315