
Example 2: SAR1 ramp monitoring active
The operation of the SLS function in case the modulation of the drive is lost during the
deceleration ramp with Monitoring active selected (parameter SLSx.05 is set to Monitoring
active) is described in the time diagram and table below.
STO active
Motor speed
Time
A
A
Drive modulation
SLS request
SAR1 monitoring
SLS indication
E
B
C
D
STO.14 delay
SAR1 ramp monitoring
A
Actual motor speed (coasting after modoff)
B
SLS trip limit
C
SLS limit
D
Last valid speed estimate of FSO
E
24 Option description