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120 Safety functions
SSE with ramp monitoring
The operation of the SSE with ramp monitoring is described in the time diagrams and
tables below. For configuration, see section
How to configure SSE with ramp
on page
.
With a safe speed estimate
A
): Speed limit for activating the drive STO function.
The safety function is completed, ramp monitoring is stopped and the SSE completed
indication (parameter
) goes on. The acknowledgment becomes allowed.
B
Response time (depends on system configuration, see page
)
Ramp monitoring limits
Drive STO state
& indication
SSE request
Motor speed
Time
SSE state &
indication
1
2
5
A
B
SSE completed
indication
3
2b
SAR0
monitoring
4
- ->
Safe torque off (STO)
Summary of Contents for FSO-21
Page 1: ... OPTIONS FOR ABB DRIVES FSO 21 safety functions module User s manual ...
Page 4: ......
Page 16: ...16 Safety instructions ...
Page 34: ...34 Safety information and considerations ...
Page 52: ...52 Overview ...
Page 236: ...236 PROFIsafe ...
Page 265: ...PROFIsafe 265 2 Select your CPU from the list 3 Install the FENA 21 GSDML file ...
Page 275: ...PROFIsafe 275 20 In ABB_Drive FB add blocks DPRD_DAT and DPWR_DAT 21 Insert values to blocks ...
Page 282: ...282 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Page 286: ...286 PROFIsafe ...
Page 304: ...304 Installation ...
Page 400: ...400 Configuration ...
Page 488: ...488 Verification and validation ...
Page 506: ...506 Fault tracing ...
Page 514: ...514 Maintenance ...
Page 536: ...536 Technical data ...