Safety functions 121
SLS trip limit hits
If the motor speed goes above/below an SLS trip limit, the FSO activates the SSE
function. The operation of SLS and SSE indications in SLS trip limit hit situations are
described in the diagrams and tables below. For more information on the SSE
function, see section
on page
.
SSE with immediate STO
This applies when the SSE function has been configured as “Immediate STO”.
A
SLS trip limit positive (parameter
B
,
C
Response time (depends on system configuration, see page
D
Time to zero speed (parameter
SLS trip limit (A)
SLS indication
SLS request
Motor speed
Time
A
7
1
6
B
4
3
D
C
SSE state &
indication
5
SSE completed
indication
2
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 ...