Siemens Sinamics S110 Function Manual page 308

Safety Integrated Functions
8.5 Extended Functions
Functional features of "Safe Stop 1"
● If SS1 is selected, the drive is brought to a stop along the OFF3 ramp (p1135) and
● The selection is realized through two channels - however braking along the OFF3 ramp,
● The "Safe Acceleration Monitor" (SBR) function is selected during braking (see "Safe
Note
If SS1 is selected, this can cause the device that governs the speed setpoint (PLC,
motion controller, EPOS) to interrupt the ramp function by triggering OFF2.
Cause: intrinsic fault response, which is triggered when OFF3 is activated unexpectedly.
Parameterization or wiring must be carried out in such a way that the device that governs
the speed setpoint can detect that SS1 has been triggered so that it can suppress the
OFF2 fault response.
Commissioning
The function is selected by entering the delay time in p9356 and p9556. The delay time until
the pulse is suppressed can be shortened by defining a shutdown speed in p9360 and
p9560.
To enable the drive to decelerate to standstill, the time set in p9356/p9556 must be sufficient
to allow the drive to decelerate to below the shutdown speed in p9360/p9560 with the OFF3
ramp (p1135).
The shutdown speed defined in p9360/p9560 must be set in such a way that personal safety
or the safety of the machine is not compromised as of this speed and as a result of
subsequent coasting by means of the pulse inhibit signal.
Responses
Speed limit violated (SBR):
● STOP A
● Safety message C01706/C30706
System errors:
1. STOP F with subsequent STOP A
2. Safety message C01711/C30711
Prerequisite
The time set in p9356/9556 must be dimensioned so that after selection, the drive brakes
down to a standstill.
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STO/SBC is automatically triggered on expiration of the delay time (p9356/p9556), or
after having reached the shutdown speed (p9360/p9560).
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.
Acceleration Monitor").
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Drive functions