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LC, light curtain
407
02/16 MN05013001Z EN
Figure 207:
Example 2 Light curtain: Signal diagram
a
Clearing of the light curtain.
b
Monitored enabling at the Reset coil, LC01QS initiates enable.
c
Intervention in the protected area of the light curtain with the
removal of the enable.
d
Discrepancy time exceeded when the light curtain is cleared
again: error.
e
Acknowledgement of the error signal at LC01ER by repeated
interruption of light curtain and renewed operation of LC01I1
and LC01I2 within the discrepancy time DT of 0.5 seconds.
f
Monitored re-enabling after the Reset coil has dropped out.
LC01I1
LC01I2
LC01QS
LC01ER
LC01RE
t > DT
a
b
c
d
e
f
t < DT
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