Siemens Sinamics S110 Function Manual page 368

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Note
Activating SS1 may cause the higher-level control (PLC, motion controller), which enters the
speed setpoint, to interrupt the ramp function by triggering OFF2.
The device behaves in this way as a result of a fault reaction triggered by OFF3 activation.
This fault reaction must be avoided using the appropriate parameterization/configuration.
Note
If you use SS1 together with EPOS, then as fault reaction to F07490 (EPOS: enable
withdrawn while traversing) OFF2 is not permitted. The reaction can be configured using
p2100/p2101.
Commissioning
Note
When "Safe Stop 1" (SS1) is installed, the function "Safe Acceleration Monitor" (SAM) is
active. For parameterizing the "Safe Acceleration Monitor" (SAM) function
→ see section "Safe Acceleration Monitor (SAM)".
The delay time (SS1 time) is set using parameters p9356 and p9556. The wait time until the
pulses are 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 along the
OFF3 ramp (p1135).
Note
So that the drive is able to travel down the OFF3 ramp completely and any motor holding
brake present can be applied, the delay time can be set as follows:
 Motor holding brake parameterized: Delay time ≥ p1135 + p1228 + p1217
 Motor holding brake not parameterized: Delay time ≥ p1135 + p1228
When setting a shutdown speed in p9360/p9560, you must be certain that the safety of
personnel or machinery will not be compromised at speeds less than or equal to this speed
or as a result of subsequent coasting caused by the pulse inhibit.
The actual speed tolerance is set using parameters p9348/p9548 (for more information
please see section "Safe Acceleration Monitor (SAM)").
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Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual