156 Safety functions
If the drive modulation returns before the STO.14 delay has run out, the deceleration
continues as parametrized and the SAR1 monitoring is set on again.
Step Description
1 The SLS request is received. The motor speed is above the SLS trip limit positive (A).
The drive starts to ramp down the motor speed. The SAR1 parameter 200.112 defines
the deceleration ramp slope until the speed reaches the SLS limit. The FSO starts the
SAR1 ramp monitoring (parameters SARx.21, SARx.22). SAR1 configuration defines
the target and monitoring limits for the deceleration ramp (SARx.22, 200.112,
SARx.02).
Note: If parameter 200.112 has value 0, the drive (parameter 23.23) defines the ramp.
2 The drive trips on a fault, there is a drive power loss, or user stops the drive by coast
stop.
SAR1 monitoring of the FSO is switched off (parameter SLSx.05 configured as
Monitoring and modoff delay time are disabled).
SLS Modoff delay time monitoring is not in use.
STO.14 delay starts.
3 The SLS indication (parameter SLSx.15, SLSx.24, SLSx.34 or SLSx.44) goes on after
STO.14 has elapsed.
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