90 Safety functions
With an encoder
A SBC speed (parameter SBC.15): Speed limit below which the FSO activates the SBC
(brake) and drive STO functions while ramping.
B Zero speed with encoder (parameter FSOGEN.52): Speed limit to define the motor as
stopped. The safety function is completed and the SS1 completed indication (parameter
SS1.22) goes on. The acknowledgment becomes allowed.
C SS1-t delay for STO (parameter SS1.14): Time after which the FSO activates the STO
function regardless of the motor speed.
D Response time (depends on system configuration, see page 532)
Drive STO state
& indication
SS1 request
Motor speed
Time
SS1 state &
indication
1
6
2
5
SBC output
3
A
D
SS1 completed
indication
C
SS1.14
B
4
3b
- -> Safe torque off (STO)
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