Safe Stop 1 (Ss1, Time Controlled) - Siemens Sinamics S110 Function Manual

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8.4.2

Safe Stop 1 (SS1, time controlled)

General description
A Category 1 stop in accordance with EN 60204-1:2006 can be implemented with function
"Safe Stop 1". The drive decelerates with the OFF3 ramp (p1135) once "Safe Stop 1" is
selected and switches to "Safe Torque Off" once the delay time set in p9652/p9852 has
elapsed.
CAUTION
Once the SS1 (time-controlled) function has been selected by parameterizing a delay in
p9652/p9852, STO can no longer be selected directly via terminals.
Functional features of "Safe Stop 1"
SS1 is selected by setting p9652 and p9852 (delay time) not equal to "0"
● The function can be selected only in conjunction with "Safe Torque Off".
● When SS1 is selected, the drive is braked along the OFF3 ramp (p1135) and STO/SBC is
● The selection is realized through two channels - however braking along the OFF3 ramp,
Release of the SS1 function
The function is enabled by entering the delay time in p9652 and p9852.
Prerequisite
The "Safe Torque Off" function must be enabled.
In order that the drive can brake down to a standstill even when selected through one
channel, the time in p9652/p9852 must be shorter than the sum of the parameters for the
data cross-check (p9650/p9850 and p9658/p9858).
The time in p9652/p9852 must be dimensioned so that after selection, the drive brakes to a
standstill.
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
automatically initiated after the delay time has expired (p9652/p9852).
As soon as the function is selected, the delay time will start to run down - even if the
function is deselected during this time. In this case, after the delay time has expired, the
STO/SBC function is selected and then again de-selected immediately.
only through one channel.
Safety Integrated Functions
8.4 Basic Functions
301

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