Wallace Perimeter Security SPEEDGATE - Page 74

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PHOTO EYE ALIGNMENT
Table 9. Vericaon of Photo Eye Alignment
Green transmier LED ON. Power present and transmier is funconal.
Green receiver LED ON. Successful system alignment, power present and
receiver is funconal.
Green receiver LED FLASHING. Obstrucon between photo eyes is present. (On
the receiver side, single-pole relay clicks.)
Green receiver LED FLASHING when
there is NO OBSTRUCTION present.
FAULT: Beam blocked or not aligned. The receiver
is not “seeing” the transmier.
Recommended acon(s):
1. Clean the sensor (beam output and receiver)
with a so, clean, dry cloth.
2. Re-align transmier and receiver.
3. Check voltage and current with mulmeter.
TEST:
1) Place an obstrucon (e.g., hand) in front of the receiver. Green receiver LED should be
ON and ashing, indicang obstrucon detecon.
2) Remove obstrucon from the receiver. Green receiver LED should be ON and not
ashing.
Opcal crosstalk occurs when a photoelectric receiver responds to light from an adjacent
emier. Crosstalk is occurring if the transmier is solid green and the receiver appears
dead (LED not lit), except when an obstrucon is detected, in which case the green
receiver LED commences ashing.
If re-alignment or reposioning of transmier and receiver does not resolve crosstalk
and/or the interference is occurring at a site with more than one SpeedGate, decrease
the sensivity seng on the receiver to the posion where the green LED on the receiver
starts to ash. Then increase sensivity seng one quarter turn.