Safety functions 145
SLS with ramp monitoring and speed above monitored speed
The operation of the SLS function with ramp monitoring is described in the time
diagram and table below. For configuration, see section How to configure SLSn with
ramp monitoring on page 364.
A SLS trip limit positive (parameter SLSx.14, SLSx.23, SLSx.33 or SLSx.43)
B SLS limit positive (parameter 200.23, 200.33, 200.43 or 200.53)
C Response time (depends on system configuration, see page 532)
Ramp monitoring limits (SAR1) or SLS trip limit (A)
SLS state &
indication
C
A
2
3
5
SLS request
Motor speed
Time
SAR1
monitoring
1
B
2b
4
- -> Safe torque off (STO)
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