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188 Safety functions
SDI with time monitoring
This applies when the motor rotates into the forbidden direction when the SDI
function is activated and the time monitoring method is used. The SDI positive
function is used as an example.
A
SDI delay (parameter
): Delay for forcing to start the SDI monitoring.
B
Zero speed with encoder (parameter
): Speed limit to define the motor as
stopped. The safety function is completed and the SSE completed indication (parameter
) goes on. The STO acknowledgment becomes allowed.
SDI state &
indication
SDI request
Motor speed
Time
B
1
2
4
A
2b
SDI.12
SSE state &
indication (2b)
3b
3
- ->
Safe stop emergency (SSE)
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 ...