Siemens SINAMICS S120 Function Manual page 83

Features
● Safe monitoring of the speed limit specified in p9346 and p9546
● Parameterizable hysteresis via p9347 and p9547
● Variable PT1 filter via p9345 and p9545
● Fail-safe output signal
● No stop response
● This function is not available for speed monitoring without an encoder.
Overview of important parameters (see the SINAMICS S120/S150 List Manual)
● p9345 SI Motion SSM (SGA n < nx) filter time (Motor Module)
● p9545 SI Motion SSM (SGA n < nx) filter time (Control Unit)
● p9346 SI Motion SSM velocity limit (Motor Module)
● p9546 SI Motion SSM (SGA n < nx) velocity limit n_x (CU)
● p9347 SI Motion velocity hysteresis (crosswise) (Motor Module)
● p9547 SI Motion velocity hysteresis (crosswise) (Control Unit)
● p9368 SI Motion SBR velocity limit (Motor Module)
● p9568 SI Motion SBR velocity limit (CU)
● r9722.0...15 CO/BO: SI Motion drive-integrated status signals
Safety Integrated
Function Manual, (FHS), 11/2009, 6SL3097-4AR00-0BP0
Safety Integrated Extended Functions
5.7 Safe Speed Monitor (SSM)
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