Safety functions 153
SLS reaction if modulation is lost with Monitoring active and modoff delay time
- modulation returns
The operation of the SLS function in case the modulation of the drive is lost during the
deceleration ramp with Monitoring active and modoff delay time selected (parameter
SLSx.05 is set to Monitoring active and modoff delay time) is described in the time
diagram and table below. For configuration, see section How to configure SLS
function behavior when drive modulation is lost on page 376.
A SAR1 ramp monitoring
B Actual motor speed (coasting after modoff)
C SLS trip limit
DSLS limit
E Last valid speed estimate of FSO
Motor speed
Time
1 432 5
Drive modulation
SLS request
SAR1 monitoring
SLSx.06 Modoff
delay time monitoring
C
D
E
A
B
A
SLS indication
To Next Page
Loading...
