Safe Brake Control (Sbc) - Siemens SINUMERIK Series Function Manual

Overview of Safety Integrated functions
2.3 Safety Integrated Extended Functions
Acceleration monitoring
For Extended Functions, there is only the "Acceleration monitoring" mode:
● The inverter monitors the motor speed using the function SAM (Safe Acceleration
Monitor).
● The inverter prevents the motor from re-accelerating by continuously adjusting the
monitoring threshold to the decreasing speed.
● The inverter reduces the monitoring threshold until the "Shutdown speed" has been
reached.
● The inverter safely switches off the motor torque (STO) if one of the following conditions is
fulfilled:
– The speed has fallen below the shutdown speed SS1.
– The maximum time until the torque is switched off has expired.
Note
SS1 without OFF3
If you use "SS1 without OFF3", then acceleration monitoring SAM is not active.
2.3.3

Safe Brake Control (SBC)

For the control options and the functionality for "Safe Brake Control" (SBC), refer to chapter
"Description of Safety Integrated Basic Functions (Page 29)".
32
Function Manual, 10/2015, 6FC5397-3EP40-5BA3
Safety Integrated