LDT, LDTB
10
PHOTO EYE INSTALLATION
1. Make sure that power is disconnected to the system prior to installing the photo eyes.
2. Photo eyes need to be mounted inside the building. They should be mounted on either side of the door and as close
as possible to the door track to offer maximum safety precaution.
3. Photo eyes should be mounted no more than 6 inches from the floor. Both brackets need to be installed at the same
height to allow them to align.
4. Select a mounting location 5 inches above the floor to the centerline of the wall mounting “L” bracket. Mount the
bracket to the wall. Repeat this step on the opposite side of the door.
5. Using the wing nuts provided, attach the photo eyes to the “L”
brackets with the arrows pointing up. Do not over tighten.
6. The transmitter and the receiver both have two 22-gauge wires
coming from them. Uncoil the wires from the photo eyes and route
them to the controller. Take one wire from the transmitter and one wire
from the receiver (these wires have no polarity) and twist the stripped
ends together. Repeat on the second wire from each unit. Connect the
wires to the BEAM terminals. Again, polarity is not important.
7. At this time, you can reconnect the power to the operator. The LEDs
on both transmitter and receiver will be lit if installed and aligned
properly; the transmitter has a red LED, and the receiver has a green LED.
8. If the photo eyes are not aligned, then the green LED on the receiver will be off. To align the photo eyes, you can
adjust the position of the transmitter or the receiver on the slot of the bracket until both LEDs are lit. Tighten the
brackets.
9. To test the photo eye system: open the door to the full open position. Close the door and as the door is closing,
obstruct the beam. The door should stop and reverse to open.
10. Test the photo eye’s function periodically.
PHOTO EYE INSTALLATION
IMPORTANT NOTE:
Identify which side of the garage door is exposed to the most
sunlight. Mount the sending unit (TX) on the side that is exposed
to the most sun. Sunlight may affect the photo sensors and this
orientation will help reduce the effect.
FIGURE 10
FIGURE 11
