106 Safety functions
Step Description
1
The SLS request is received. The motor speed is above the SLS limit. The drive starts
to ramp down the motor speed. The SAR1 parameter
defines the deceleration
ramp slope until the speed reaches the SLS limit. The FSO starts the SAR1 ramp
monitoring (parameters
). SAR1 configuration defines the target and
monitoring limits for the deceleration ramp (
Note:
If parameter 200.112 has value 0, the drive (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 on (parameter SLSx.05 configured as Monitoring
active). As the modulation is lost, FSO's safe speed estimation is stopped and it starts
to use the last speed information that it had before the modulation was lost. With
SLSx.06 Monitor active, SAR1 monitoring stays active also when the modulation is lost
from the drive.
delay starts.
3
Modulation of the drive has not returned and the safe speed estimation with the last
valid speed information hits the SAR1 monitoring and FSO activates STO function and
STO indication (parameter STO.21 STO output). See section
page
for more information on how to configure the STO function.
If the modulation returns before the last valid speed estimation of FSO hits the SAR1
monitoring limit, the drive will continue the deceleration for as long as the speed stays
within the SAR1 ramp monitoring limits.
4
SLS indication goes on after STO.14 delay has elapsed.
Содержание FSO-12
Страница 1: ... OPTIONS FOR ABB DRIVES FSO 12 safety functions module User s manual ...
Страница 4: ......
Страница 12: ...12 Table of contents ...
Страница 26: ...26 Introduction to the manual The PROFIsafe certificate for the FSO 12 module is attached below ...
Страница 36: ...36 Safety information and considerations ...
Страница 136: ...136 Safety functions ...
Страница 196: ...196 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Страница 200: ...200 PROFIsafe ...
Страница 326: ...326 Start up ...
Страница 386: ...386 Dimension drawings ...