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112 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 FSO starts to monitor the SLS time delay (parameter SLSx.04).
The drive (parameter 23.13 or 23.15) defines the deceleration ramp until the speed
reaches the SLS limit.
2
The drive trips on a fault, there is a drive power loss, or user stops the drive by coast
stop.
SLS Modoff delay time starts (parameters
).
delay starts.
3
Modulation of the drive has not returned and the SLSx.06 Modoff delay time has run
out (parameter SLSx.06), and FSO activates STO function and STO indication
(parameter STO.21 STO output). See section See section
on
page
for more information on how to configure the STO function.
4
SLSx.04 time delay for SLS time monitoring
5
SLS indication goes on after STO.14 delay has elapsed.
Summary of Contents for FSO-12
Page 1: ... OPTIONS FOR ABB DRIVES FSO 12 safety functions module User s manual ...
Page 4: ......
Page 12: ...12 Table of contents ...
Page 36: ...36 Safety information and considerations ...
Page 136: ...136 Safety functions ...
Page 196: ...196 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Page 200: ...200 PROFIsafe ...
Page 326: ...326 Start up ...
Page 386: ...386 Dimension drawings ...