92 Safety functions
With ramp monitoring
The operation of the SSE with speed limit activated SBC, SBC before STO and ramp
monitoring is described in the time diagram and table below. For configuration, see
section
How to configure SSE with speed limit activated SBC, SBC before STO
on
page
A
SBC speed (parameter
): Speed limit below which the FSO activates the SBC
(brake) while ramping. The SAR0 ramp monitoring is stopped.
B
SBC delay (parameter
): Time from the activation of the SBC function to the
moment when the FSO activates the drive STO function
.
C
SBC time to zero (parameter
): Time from the SBC activation to the moment
when the safety function is completed and the SSE completed indication (parameter
) goes on. The acknowledgment becomes allowed. You must set this to the
estimated time in which the motor brakes to a stop from the maximum speed.
D
Response time (depends on system configuration, see page
Ramp monitoring limits
Drive STO state
& indication
SSE request
Motor speed
Time
SSE state &
indication
1
7
2
5
SBC output
3
A
D
SSE completed
indication
SAR0
monitoring
3b
B
C
4
6
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 ...