Safety functions 75
Step Description
1
The SS1 request is received (for example, from the I/O). The drive starts to ramp down
the motor speed. SAR1 parameter
defines the deceleration ramp. The FSO
starts the SAR1 ramp monitoring (parameters
and
).
Note:
If parameter
has value
0
, the drive (parameter
23.23
) defines the ramp.
2
The drive trips on a fault or user stops the drive, modulation of the drive stops. FSO
module activates the STO function and STO indication (parameter STO.21 STO
output).
SAR1 ramp monitoring goes off.
See section
on page
for more information on how to configure
the STO function.
Note:
If STO is used in cascaded system (see
on page
), it will not be
activated in the whole system in this case.
Note:
SS1 completed indication (SS1.22) is used instead of STO completed indication
(STO.22) in this case
Note:
If the SBC is configured in the STO function, also the SBC is activated according
to the configuration (not shown in the figure).
3
The SS1 completed indication goes on and the acknowledgement becomes allowed as
soon as the SS1 request has been removed.
SS1 function can be acknowledged when STO.14 delay has elapsed after the drive
modulation is lost.
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 ...