Siemens SINAMICS G120C DP

DC braking when falling below a starting speed
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Figure8-62 DC braking when falling below a starting speed
Set p1231=14 and p1230=control command.
With an active DC braking command (p1230 = 1 signal), the following occurs:
1. If motor speed < starting speed p1234:
The converter de-energizes the motor for the motor de-excitation time p0347 in order to
demagnetize the motor.
2. The converter activates the DC braking.
3. The drive switches back to normal operation if at least one of the following conditions has
been ful󹪝lled:
– "DC braking duration" p1233 has expired.
– The DC braking command is inactive (p1230 = 0 signal).
DC braking when the motor is switched o󹪜
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Figure8-63 DC braking when the motor is switched o󹪜
Set p1231=5.
Advanced commissioning
8.21Electrically braking the motor
SINAMICS G120C Converters
328 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK