INSTALLATION—PHOTO EYE
PHOTO EYE
The photo eye is a safety measure and therefore
needed
for
proper
door
operation. When installing
photo
eyes on the back side of the door, make sure the
installation is
opposite
from the front. The end result
would be photo eye beams that crisis cross. (See
Figure 29 and Figure 30.)
The transmitter and receiver can be identified two ways.
The transmitter is designated SMT 3000 on the white
label or by a single green light that comes on at the clear
end of the transmitter. (See Figure 31.) The receiver is
designated SMR 3215 on the white label or by a yellow
light that illuminates only when it is in proper alignment
with the transmitter. (See Figure 32.)
NOTE: When the cable is connected to the photo
eye, there is only a 1/4-inch window to
see the green or yellow LED light. (See
Figure 32.)
Photo Eye
Transmitter
Transmitter
Module
Designation
Power Light
(Green)
A7700040
Photo Eye
Receiver
Figure 29
A2500258
IMPORTANT: When installing the rear set of
photo eyes, be sure that the
assembly is installed in reverse
order from the front. This is to
prevent crosstalk between the
photo eyes. (See Figure 30.)
Figure 31
Receiver
Module
Designation
Alignment Light
(Yellow)
A2500259
A7700046
Figure 30
Figure 32