Siemens SINAMICS S120 Function Manual page 115

Safety integrated
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An override can also be added to SLS limit value 1. In operation, this override can be varied
using a PROFIsafe telegram.
Note
Deviation of the displayed speed limit
The SLS speed limit displayed in r9714[2] can deviate slightly from the specified SLS speed
limit. The reason for this is the internal resolution (r9732) of the speed values.
Note
Response in the event of a communication error
If p9580 ≠ 0 and SLS is active, in the event of communication failure, the parameterized
ESR reaction is only realized if, as SLS response, a STOP with delayed pulse cancellation
when the bus fails has been parameterized (p9563[0...3] ≥ 10).
Note
Setpoint speed limit and SLS
• It makes sense to configure the set velocity limit if SLS is also parameterized. This is
done in a higher-level controller that evaluates the safety information channel, for
example, or by wiring r9733[0/1] to the speed limits of the ramp-function generator
(p1051/p1052).
• It does not make sense to use the positive and negative setpoint limiting for SLS in
conjunction with standard telegram 105 and others: With this combination, the velocity
setpoint of the standard telegram is only effective after the setpoint limiting.
Note
Deactivation of SLS during external STOP A
If "Deactivating SOS/SLS during an external STOP A" (p9501.23 = 1) is released and SLS is
selected, SLS is deactivated during a STOP A.
Figure 4-13
Safety Integrated
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Signal flow: Deactivation of SLS during external STOP A
Description of Safety Integrated functions
4.2 Safety Integrated Extended Functions
113

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