Siemens SINAMICS G110M Operating Instructions Manual page 316

Advanced commissioning
8.20 Electrically braking the motor
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 fulfilled:
– "DC braking duration" p1233 has expired.
– The DC braking command is inactive (p1230 = 0 signal).
DC braking when the motor is switched off
Figure 8-67
Set p1231 = 5.
The following occurs after an OFF1 or OFF3 command:
1. The motor brakes along the OFF1 or OFF3 deceleration ramp to starting speed p1234.
2. The converter de-energizes the motor for the motor de-excitation time p0347 in order to
demagnetize the motor.
3. The converter activates the DC braking.
4. After "DC braking duration" p1233 expires, the converter de-energizes the motor.
If the OFF1 command is deactivated before "DC braking duration" p1233 expires, the converter
terminates the DC braking and switches to normal operation.
314
DC braking when the motor is switched off
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL