Safe Stop 1 (Ss1, Time Controlled); Ss1 With Off3 - Siemens SINAMICS S120 Function Manual

Safety Integrated Basic Functions

11.5 Safe Stop 1 (SS1, time controlled)

11.5 Safe Stop 1 (SS1, time controlled)
11.5.1

SS1 with OFF3

The "Safe Stop 1" (SS1) function allows the drive to be stopped in accordance with EN 60204-1,
Stop Category 1. The drive decelerates with the OFF3 ramp (p1135) once "Safe Stop 1" is
selected and switches to "Safe Torque Off" (STO) once the delay time set in p9652 has elapsed.
Note
Selection via terminals
The selection of the "Safe Stop 1" (time-controlled) function via terminals is parameterized by
setting a delay > 0 in p9652. In this case, the STO function can no longer be selected directly
via terminals, i.e. either STO or SS1 can be selected via terminals.
If the "Safe Stop 1" (time-controlled) function has been selected by parameterizing a delay time
in p9652, STO can no longer be selected directly via terminals.
Precondition
● The Basic Functions are enabled via terminals and/or PROFIsafe:
– p9601 = 1, 8 or 9 (hex)
● Enabling Basic Functions via TM54F
– p9601.6 = 1
● In order that the drive can brake down to a standstill even when selected through one
channel, the time in p9652 must be shorter than the sum of the parameters for the data
cross-check (p9650 and p9658). Otherwise the drive will coast down after the time
p9650 + p9658 has elapsed.
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Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions