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Safety functions 155
SLS reaction if modulation is lost with Monitoring and modoff delay time
disabled
The operation of the SLS function in case the modulation of the drive is lost during the
deceleration ramp with Monitoring and modoff delay time disabled selected
(parameter
is set to Monitoring and modoff delay time disabled) is described
in the time diagram and table below. For configuration, see section
SLS function behavior when drive modulation is lost
.
A
SAR1 ramp monitoring
B
Actual motor speed (coasting after modoff)
C
SLS trip limit
D
SLS limit
SLS indication
Motor speed
Time
1
3
2
A
A
B
Drive modulation
SLS request
SAR1 monitoring
C
D
STO.14 delay
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 ...