Ss2 With Braking Ramp Monitoring (Ss2-R) - Siemens SINAMICS S210 Operating Instructions Manual

Safety functions integrated in the drive
4.2 Extended Functions
4.2.4.2

SS2 with braking ramp monitoring (SS2-r)

Flow diagram
Behavior
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● SS2 is selected during operation.
● The drive immediately initiates braking following the response time via the OFF3 ramp. The SBR
delay time is initiated at the same 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, monitoring of the braking ramp is deactivated. Braking
continues.
● SOS is triggered once the SS2 delay time has elapsed.
● The SS2 delay time set must allow the drive to brake to a standstill from every speed of the
operating process within this time.
● Standstill of the motor safely monitored with Safety function SOS. The motor remains in control
mode.
● SS2 and SOS are deactivated with (manual or automatic program-controlled) deselection.
● You can immediately continue traversing the axis from the standstill position.
SINAMICS S210 servo drive system
Operating Instructions, 01/2019, A5E41702836B AC