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122 Safety functions
SSE with emergency ramp
This applies when the SSE function has been configured as “Emergency ramp” (with
ramp monitoring or time monitoring).
Step Description
1
The SLS request is received, the motor speed is below the SLS limit positive (B) and
the FSO starts the SLS monitoring. The SLS indication (parameter
,
,
or
) goes on.
2
The motor speed goes above the SLS limit positive (B).
3
The motor speed reaches the SLS trip limit positive (A). The SLS indication goes off.
4
After time C has elapsed, the FSO activates the SSE function, opens the drive STO
circuit and the motor coasts to a stop.
5
After time D has elapsed, the motor has stopped and the SLS indication goes on
(speed is below the SLS limit positive). The SSE completed indication goes on.
Note
: If the SBC is configured in the SSE function, parameter
is used here
instead of
.
6
The SLS request is removed. The SLS monitoring is still on (acknowledgement method
is manual or from a safety PLC).
7
The SLS function is acknowledged and the FSO stops the SLS monitoring. The SSE
function is acknowledged with the same acknowledgement. The indications go off.
A
SLS trip limit positive (parameter
,
,
B
or
)
C
Response time (depends on system configuration, see page
)
SLS indication
SLS request
Motor speed
Time
A
8
1
7
B
4
3
C
SSE state &
indication
SSE completed
indication
2
D
6
5
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 ...