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520 Technical data
Safety data
General
T
o determine the SIL/PL capability of the whole safety function where the FSO is
included, the failure rates (PFD
avg
/PFH) of all components implementing the safety
function (see the figure below) must be added.
•
FSO module with its subsystems.
The FSO acts as the logic part in the safety
function. The safety data for the safety function where FSO and drive are used is
composed of the safety data of the subsystems. Safety data for different
subsystems is shown in section
.
•
Digital inputs and outputs.
Subsystems for the digital inputs and outputs of the
FSO. Can be used as single or dual channel and with or without diagnostic
pulses.
Digital
input
STO
output
Digital
output
Speed
measure-
ment
Drive
STO
Switch,
input
device
Logic
Additional
actuator,
eg. relay or
cascaded
FSO
FSO
PROFI-
SAFE
Speed
measure-
ment with
FSE-31
Safety
encoder,
Input
device
Safety
PLC
Input
devices
FSE
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 ...