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2 9
Re-Open Photo Beam (vehicular Safety)
NOTE:
This type of photo-beam installation will stop then RE-OPEN the gate all the way
to the open limit, when the beam is obstructed. Intended for vehicular safety ONLY. For
the purpose of pedestrian entrapment, see pages 10-11.
ACCESSORY CONNECTIONS
!
TECHNICAL TIP:
For more information
regarding accessory connections
to the control board and individual
input terminal functions, refer to
“Appendix (A)”, pages 42-43.
Note regarding Photo Beam types:
Fail-Safe type -
connect the
“N.C.”
terminal of the photo beam to the
“Re-Open” terminal on the control board.
Typically, these are the reflective type
photo beams.
Fail -Secure type -
connect the
“N.O.”
terminal of the photo beam to the
“Re-Open” terminal on the control board.
Typically, these are the transmitter/
receiver type photo beams.
Check for proper operation:
The “Re-Open” LED will illuminate
solid while the beam is obstructed
and remain off when the beam is
unobstructed.