Dynamic Braking - Siemens SINAMICS G110M Operating Instructions Manual

Advanced commissioning
8.20 Electrically braking the motor
DC braking voltages
The line supply voltage available to the converter determines the amount of rectified brake
voltage available for DC braking function. Listed in the following table are examples of the
correlation between the input AC voltage to the available DC voltage for the DC braking function.
Line voltage 380 V AC
Rectified brake volt‐ 171 V DC
age
The following formula can be use a guide to the rectified brake voltage that is available from the
line voltage:
Line voltage x 0.45 = Brake coil voltage
For example: 400 V AC x 0.45 = 180 V DC.
8.20.3

Dynamic braking

Overview
Typical applications for dynamic braking require continuous braking and acceleration
operations or frequent changes of the motor direction of rotation:
• Horizontal conveyors
• Vertical and inclined conveyors
• Hoisting gear
316
400 V AC 440 V AC
180 V DC 198 V DC
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL
480 V AC 500 V AC
216 V DC 225 V DC
Distributed converter for SIMOGEAR geared motors