Siemens SINUMERIK 840D sl Function Manual page 424

Data descriptions
9.2 Parameters for SINAMICS S120
p9547 SI Motion SSM (SGA n < n
Sets the speed hysteresis for the SSM feedback signal to detect standstill (n < n
See also: C01711
The velocity hysteresis is only effective when the function has been enabled
(p9501.16 = 1).
Unit: Default value:
mm/min, rpm 10.0000
p9548 SI Motion SBR actual speed tolerance (Control Unit)
Sets the speed tolerance for the safe monitoring of the acceleration (SAM) function
See also: C01706
Unit: Default value:
mm/min, rpm 300
p9549 SI Motion slip velocity tolerance (Control Unit)
Sets the velocity tolerance, which is applied for a 2-encoder system in a crosswise
comparison between the two monitoring channels.
See also p9501, p9542
If the actual value synchronization is not enabled (p9501 3 = 0), then the value
parameterized in p9542 is used as tolerance in the crosswise data comparison.
Unit: Default value:
mm/min, rpm 6
p9550 SI Motion SGE changeover tolerance time (Control Unit)
Sets the tolerance time to change over the safety-related inputs (SGE)
Unit: Default value:
ms 500
p9551 SI Motion SLS (SG) switchover / SOS (SBH) delay time (Control Unit)
Sets the delay time for the SLS changeover and for the activation of SOS for the
functions "Safely-Limited Speed" (SLS) and "Safe Operating Stop" (SOS).
At the transition from a higher to a lower Safely-Limited Speed stage and when
activating a Safe Operating Stop (SOS), the "old" speed level remains active for
this delay time.
This delay still applies even when SLS or SOS is activated from the non-safety
mode.
The set time is internally rounded off to an integer multiple of the monitoring clock
cycle (p9500/p9300).
Unit: Default value:
ms 100
424
) speed hysteresis (CU)
x
Minimum value: Maximum value:
0.0010 500.0000
Minimum value: Maximum value:
0 120 000
Minimum value: Maximum value:
0 6000
Minimum value: Maximum value:
0 10 000
Minimum value: Maximum value:
0 600000
). Checksum: Protection level:
x
Yes 3
Data type: Effectiveness:
FloatingPoint32 POWER ON
Checksum: Protection level:
Yes 3
Data type: Effectiveness:
Floating Point32 POWER ON
Checksum: Protection level:
Yes 3
Data type: Effectiveness:
Floating Point32 POWER ON
Checksum: Protection level:
Yes 4
Data type: Effectiveness:
FloatingPoint32 POWER ON
Checksum: Protection level:
Yes 3
Data type: Effectiveness:
Floating Point32 POWER ON
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated