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Overview 51
Safe direction (SDI)
This safety function monitors that the motor rotates into the correct direction. If the
motor rotates into the forbidden direction more than the user-defined SDI tolerance
limit allows, the FSO module activates the SSE function and the motor stops. This
safety function requires that you use an encoder in the safety application. See section
on page
Safe acceleration range (SAR)
This safety function provides safe deceleration ramp monitoring for other safety
functions. FSO module has two different SAR functions, SAR0 and SAR1.
SAR0 and SAR1 functions behave in the same way but they can be configured to
work differently, based on the application needs. SAR0 parameters are used with the
SSE function. SAR1 parameters are used with the SS1, SLS, varSLS, and SDI
functions. For more information, see section
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 ...