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102 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 (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. SLS Modoff delay time starts
(parameters
&
).
delay starts.
Note:
This reaction is the default for FSO and the delay time is set to 0 ms.
3
Modulation of the drive has not returned and the SLSx.06 Modoff delay time has run
out, and FSO activates STO function and STO indication (parameter STO.21 STO
output). See section
on page
for more information on how to
configure the STO function.
4
If modulation does not return, and STO.14 delay has elapsed, SLS indication goes on.
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 ...