Safe Stop 1 With Braking Ramp Monitoring (Ss1-R) - Siemens SINAMICS S210 Operating Instructions Manual

4.2.3.2

Safe Stop 1 with braking ramp monitoring (SS1-r)

Flow diagram
Behavior
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SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC
● SS1 is selected in operation.
● The drive immediately initiates braking following the response time via the OFF3 ramp.
● At the same time, the drive initiates the SBR delay time.
● The drive monitors the motor to ensure that it does not exceed the set braking ramp when
braking.
● Upon reaching the SBR speed limit, the drive deactivates monitoring of the braking ramp.
Braking continues.
● STO is triggered by the drive when the STO shutdown speed is reached or when the SS1 delay
time has elapsed.
● The motor coasts down to a standstill.
● The drive safely prevents a restart of the motor with the pulse inhibit.
Safety functions integrated in the drive
4.2 Extended Functions
91