66 Safety functions
SS1 with speed limit activated SBC
In these examples, the SBC and drive STO functions are activated at a user-defined
speed limit.
With time monitoring (SS1-t)
The operation of the SS1-t function with speed limit activated SBC is described in the
time diagram and table below. For configuration, see section
with speed limit activated SBC
on page
A
SBC speed (parameter
): Speed limit below which the FSO activates the SBC
(brake) and drive STO functions while ramping.
B
SS1-t delay for STO (parameter
): Time after which the FSO activates the STO
function regardless of the motor speed.
C
SBC time to zero (parameter
): Time from the SBC activation to the moment
when the safety function is completed and the SS1 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
Drive STO state
& indication
SS1 request
Motor speed
Time
SS1 state &
indication
1
6
2
5
SBC output
3
A
D
SS1 completed
indication
B
3b
- ->
C
4
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 ...