Siemens SINAMICS G220 Operating Instructions Manual page 604

Functions
14.11 Drive functions
Description of function
The motor converts braking energy of the load into heat.
Figure 14-188
Features of DC braking:
• No constant braking torque
• No braking torque at standstill
The converter activates the compound braking dependent on the DC link voltage. Above a DC
link voltage threshold value (r1282), the converter adds a DC current to the motor current.
The DC current brakes the motor and prevents the DC link voltage from increasing above a
critical value.
Figure 14-189
602
Energy flow during compound braking
Braking of the motor with and without active compound braking
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
SINAMICS G220 converter