ABB FSO-21 User Manual page 122

Safety functions module
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122 Safety functions
With an encoder
Motor speed
B
A
1
2
A
Zero speed with encoder (parameter FSOGEN.52): Speed limit for activating the drive
STO function. The safety function is completed, ramp monitoring is stopped and the SSE
completed indication (parameter SSE.22) goes on. The acknowledgment becomes
allowed.
B
Response time (depends on system configuration, see page 532)
Ramp monitoring limits
- ->
Safe torque off (STO)
2b
3
4
5
Time
SSE request
Drive STO state
& indication
SSE state &
indication
SSE completed
indication
SAR0
monitoring

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