Siemens SINAMICS G220 - Safe Stop 1 with Acceleration Monitoring (SS1-A)

Number Name Unit
p1135[0...n] OFF3 ramp-down time [s]
p9556 SI transition time SS1 to STO [ms]
p9603.0...1 SI control 
p9604.0...30 SI enable 
p9606 SI SS1 function speci󹪝cation 
r9720.0...15 SI control word 
r9722.0...15 SI status signals 
c10023 SI SS1 input terminal 
r10353.0...17 SI SS1 select cause 
14.12.4.4 Safe Stop 1 with acceleration monitoring (SS1-a)
Overview
SS1-a with Safe Acceleration Monitor (SAM) monitors whether or not the motor inadmissibly
accelerates when braking. After the de󹪝ned time interval has elapsed or the speed falls below
the de󹪝ned shutdown speed, Safe Torque O󹪜 (STO) becomes active.
Description of function
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BTUBOETUJMM
W
4".
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Q
Q
Q
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U
U
U
Q
Q

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Figure14-228 Flow diagram Safe Stop 1 with acceleration monitoring (SS1-a)
Functions
14.12Safety Integrated
SINAMICS G220 converter
664 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB