Safe Brake Control (Sbc); Selecting And Deselecting Sbc When The Motor Is Switched On - Siemens Sinamics G120 Function Manual

6.4

Safe Brake Control (SBC)

6.4.1

Selecting and deselecting SBC when the motor is switched on

If you have connected the motor holding brake to the inverter via the Safe Brake Relay, then
the SBC function is active under the following conditions:
1. You have activated the "motor holding brake" function in the inverter.
2. You have enabled the SBC function.
3. The STO function is active in the inverter.
Selecting STO when the motor is at a standstill
Function
1. The higher-level control switches the motor off: ON/OFF1 = 0 or OFF3 = 0.
2. When the drive has come to a standstill, the control selects the STO function.
Figure 6-13
Before you can switch on the motor again, you must deselect the STO function.
Inverter signal
STO deselection (basic functions)
Deselect STO (extended functions)
SBC requested (basic functions)
ON/OFF1
Release motor holding brake
Close motor holding brake
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
Wait until standstill is reached and activate SBC with STO
Parameter
r9773.0
r9720.0
r9773.4
r0054.0
r0899.12
r0899.13
6.4 Safe Brake Control (SBC)
Included in the PROFI‐
safe telegram
✓
✓
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Operation
Can be interconnec‐
ted with
F-DI F-DO
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