Operating Instructions
Transponder-Coded Safety Switch CET.-AR-…
6
(Translation of the original operating instructions) 2110788-13-03/20
NOTICE
For information about combination with an AR evaluation unit, please refer to chapter 10.11. Information
on operation on an AR evaluation unit on page 35.
3. Description of the safety function
Devices from this series feature the following safety functions:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to ENISO14119)
Ì Safety function (see chapter 6.8. Switching states on page 11):
- The safety outputs are switched off when guard locking is released (monitoring of the locking element).
- The safety outputs are switched off when the guard is open (monitoring of the door position).
- Guard locking can be activated only when the actuator is located in the switch head (prevention of inadvertent locking
position (faulty closure protection)).
- The following additionally applies in an AR series connection: the safety outputs are switched on only when the device
receives a corresponding signal from its predecessor in the chain.
Ì Safety characteristics: category, Performance Level, PFH
D
(see chapter 13. Technical data on page 42).
NOTICE
You can regard the complete AR device chain as one subsystem during calculation. The following
calculation method applies to the PFHd value:
#1
PFH
D,1
PFH
D,ext
AR-Device #1 ... n External Evaluation
(e.g. PLC)
PFH
D
ges =∑ PFH
D,k
+ PFH
d,ext
n
#2
PFH
D,2
#n
PFH
D,n
Alternatively, the simplied method according to section 6.3 of EN 13849-1:2015 can be used for
calculation.
To Next Page
Loading...
Need help?
General