130 Safety functions
SMS function, version 1
The operation of the SMS function, version 1 is described in the time diagram and
table below. For configuration, see section
How to configure SMS, version 1
page
A
SMS trip limit positive (parameter
B
SMS trip limit negative (parameter
)
C
Response time (depends on system configuration, see page
)
SMS trip limits (A and B)
Step
Description
1
The motor speed reaches the SMS trip limit positive (A).
2
After time C has elapsed,
the FSO activates the SSE function. In this case, the SSE
function has been configured as “Immediate STO” (parameter
). This opens
the drive STO circuit immediately and the motor coasts to a stop. The STO and SSE
indications go on.
Note
: If SBC is used, it is also activated (see the note on page
). See section
on page
for more information on how to configure the SSE
function.
3
After the SSE function has been completed, the FSO acknowledges the SSE function
(in this case, automatic acknowledgement is used) and deactivates the SSE and drive
STO functions. The indications go off.
1
Drive STO state
& indication
B
A
C
2
SSE state
& indication
3
Motor speed
Time
- ->
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 ...