Siemens SINAMICS G110M - Page 233

After the OFF1 or OFF3 command:
1. The converter brakes the motor down to a standstill using the OFF1 or OFF3 command.
2. When braking, the converter compares the speed setpoint and the actual speed with the
"standstill detection speed threshold" p1226:
– Speed setpoint < p1226: The "standstill detection monitoring time" p1227 starts
– Current speed < p1226: The "pulse cancellation deceleration time" p1228 starts
3. When the 󹪝rst of the two times (p1227 or p1228) has elapsed, the converter issues the
command to close the brake.
4. After the "motor holding brake closing time" p1217, the converter switches o󹪜 the motor.
The motor holding brake must close within the time p1217.
The "Motor holding brake" function has been commissioned.
❒
After the OFF2 command
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21
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U 
U 
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W
W
W
W
W
W
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Figure 8-31 Controlling the motor holding brake after OFF2
After the OFF2 command, the converter issues the signal to immediately close the motor
holding brake, irrespective of the motor speed.
Advanced commissioning
8.12 Motor holding brake
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL 231