Siemens SINUMERIK 828D Function Manual page 27

● Without brake ramp monitoring with encoder:
● Selecting SLS at low velocities
● Deselect SLS
Safety Integrated
Function Manual, 07/2012, 6FC5397-3EP40-3BA0
The inverter monitors the load velocity after the "delay time for SLS changeover" has
expired.
Advantage: Commissioning is simplified, because instead of the subfunction SBR or SAM
of the alternative brake ramp monitoring, you only have to set the delay time.
If the motor velocity when selecting SLS is less than the SLSlimit, then the drive responds
as follows:
The inverter monitors the velocity without any delay time.
If the higher-level control deselects SLS , then the inverter deactivates limiting and
monitoring.
Description of the Safety Integrated Extended Functions
3.6 Safely Limited Speed (SLS)
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