Siemens SINAMICS S120 Function Manual page 60
Safety integrated
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Overview of Safety Integrated functions
3.2 Safety Integrated Extended Functions
How does SSM function in detail?
Requirements
The safety function SSM cannot be selected or deselected using external control signals.
SSM is active when you have set a monitoring velocity > 0 for SSM .
Evaluating the speed
The converter compares the load speed with the speed limit and signals if the limit value is
undershot to the high-level control.
Parameterizable hysteresis
The parameterizable hysteresis ensures that the SSM output signal does not jump between
the values "0" and "1" in the limit range.
Figure 3-3
Details and parameterization
For further details and information on how to parameterize this function, see Section "Safe
Speed Monitor (SSM) (Page 121)".
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Time response of the safety function SSM (Safe Speed Monitor)
Function Manual, 12/2018, 6SL3097-5AR00-0BP1
Safety Integrated
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