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386 Configuration
2. Modulation is lost. Motor starts to coast to a stop. FSO stores last valid safe
speed estimation value. SLS ramp monitoring limit (SAR1) is kept active also
when modulation is lost.
3. Modulation of the drive has not returned. If
SAR1 monitoring limit hit is generated based on the last valid speed estimate of
FSO.
4.
delay starts when drive modulation is lost. If modulation does not return,
SLS indication goes on after
delay has elapsed.
When drive modulation is lost, last valid speed estimate is stored to FSO module until
modulation comes back or monitoring limit is reached. Ramp monitoring is kept active
also when modulation is lost during SLS deceleration ramp. The ramp monitoring is
activated when SLS is requested.
Note:
It is also possible to use fixed delay time until tripping fault without time/ramp
monitoring by setting
Modoff delay time
and by setting a suitable delay
until tripping fault with
. With value 0, the tripping fault is generated
immediately.
Note:
are used only with speed estimate and only with
SLS1…SLS4 and Variable SLS functions in a situation where drive modulation is lost
during deceleration to SLS speed.
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 ...