Siemens Sinamics G120 Function Manual page 234

Operation
6.4 Safe Brake Control (SBC)
Selecting SS1 when the motor is rotating
Function
1. The higher-level control selects the SS1 function
2. The inverter brakes the motor with the OFF3 ramp-down time.
3. The inverter closes the motor holding brake once the motor is at a standstill.
4. If the standstill monitoring is undershot, or once the delay time has expired, the inverter
activates the STO function and controls the brake with the SBC function.
Figure 6-14
Before you can switch on the motor again, you must deselect the SS1 function.
Inverter signal
STO active (basic functions)
STO active (extended functions)
Deselect STO (extended functions)
SBC requested (basic functions)
Deselect SS1 (basic functions)
Deselect SS1 (extended functions)
ON/OFF1
Release motor holding brake
Close motor holding brake
234
When selecting SS1, the motor holding brake closes at standstill
Parameter
r9773.1
r9722.0
r9720.0
r9773.4
r9773.5
r9720.1
r0054.0
r0899.12
r0899.13
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Included in the PROFI‐
safe telegram
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Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Can be interconnec‐
ted with
F-DI F-DO
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