Safe Brake Ramp (Sbr) - Siemens SINAMICS S120 Function Manual

Description of Safety Integrated functions
4.2 Safety Integrated Extended Functions
Responses
● Speed limit violated (SAM):
– STOP A
– Safety message C01706
● System fault:
– STOP F with subsequent STOP A
– Safety message C01711
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p9546
• p9548
• p9568
4.2.14

Safe Brake Ramp (SBR)

The Safe Brake Ramp (SBR) function provides a safe method for monitoring the brake ramp.
The Safe Brake Ramp function is used to monitor braking with the functions "SS1
with/without encoder," "SLS without encoder," SS2 and STOP B / STOP C (for Safety with
encoder). For SLS, you must connect the setpoint limitation of the Safety Integrated
Functions (r9733) to the ramp-function generator (p1051/p1052).
Features
The motor is decelerated with the OFF3 ramp as soon as SS1, SS2, or SLS is triggered.
Monitoring of the brake ramp is activated once the delay time in p9582 has elapsed. The
drive monitors the motor to ensure that it does not exceed the set braking ramp (SBR) when
braking. The safe monitoring of the brake ramp is deactivated
● For SS1:
– As soon as the speed drops below the shutdown speed (p9560).
– As soon as the delay time (p9556) has elapsed.
● For SS2:
As soon as the SS2 delay time (p9552) has elapsed.
● For SLS:
– As soon as the set brake ramp has reached the new SLS level
– As soon as the actual speed drops below the newly selected SLS level and has
152
SI Motion SSM (SGA n < nx) speed limit (CU)
SI Motion SAM actual speed tolerance (Control Unit)
SI Motion SAM speed limit (Control Unit)
Or:
Or:
remained there for the time parameterized in p9582.
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated