Controlled Products Systems Group SLIDESMART DC 10F - Manual (Page 109)

Installing Photoelectric Sensors For Secondary Entrapment Protection Only
Revision D Reference 6-11
• The photo eye NO or NC output wires connect to the Smart DC Controller at the EYE CLOSE
terminal if the photo eye spans the road, or at the EYE OPEN terminal if the photo eye spans the area
between an open gate and a wall or other structure. (See NOTE).
S UPERVISED C ONNECTION :
NOTE
This connection REQUIRES that both the Eye Open and Eye Closed inputs be connected to
photoelectric eyes.
If two photo eyes are being installed and both have true NC output (one that is NC when the photo eye is
powered, aligned and set for Light Operate), then a supervised connection is recommended. A supervised
connection will signal a system Fault and prevent gate operation if either the open or close photo eye
connection ever becomes an open circuit or a short circuit. The Installer Menu item PC - Photo Eye Output
must be changed from a 0 to a 1 to enable this feature.
P
HOTO
E
YE
F
UNCTION
:
A tripped photo eye will prevent the gate from starting in either direction if the gate is stationary. If tripped
while in motion, the standard function is to stop the gate motion and then automatically restart again if the
photo eye is clear within five seconds. An optional setting in the Installer Menu will cause a two second reversal
of travel.
Alignment:
Most photo eyes require careful optical alignment in order to aim the emitter beam to the center of the receiver
or reflector. In order to avoid false triggering, it is important to carefully align the system, especially with retro-
reflective photo eyes. The best way to assure true centering of the beam is with some trial testing where the
emitter is shifted to move the beam left and right and up and down until the range of the invisible cone of the
infrared beam is known. Photo eyes usually provide alignment aid LED's for this setup, but they can be hard to
see. HySecurity has provided a unique feature that turns power on to the photo eyes and causes our buzzer to
chirp when the photo eyes enter and exit alignment. See
Table 3-1 "Smart DC Controller - User Menu
Functions" on page 3-12 to enable this feature. Set the menu item PE - PHOTO EYE ALIGN from a 0 to a 1.
The buzzer chirps once when the emitter and photo eye receiver are not aligned. When the emitter and receiver
are aligned, the buzzer chirps twice. If they go out of alignment again, the buzzer will chirp once. This
“alignment mode” will automatically reset to 0 the next time the Close Limit Switch is triggered or the RESET
key is pressed.
Notes about retro-reflective systems:
Correct installation and alignment of a retro-reflective photo eye and its reflector is important for trouble free
performance. Any system operating at a range greater than 16 feet is more prone to false triggering due to dirty
optics, condensation or poor weather. If care is taken in the initial mounting and alignment of the 3-inch
reflector, the chance of problems is greatly reduced. Use only through beam photo eyes for a distances greater
than 24 feet because the function of a retro-reflective photo eye will be too unreliable.
Taking steps to protect the photo eye and the reflector from being exposed to fog and being absolutely certain
the photo eye is perfectly aligned will greatly reduce any false triggering of the system. The ideal mounting of a
retro-reflective photo eye is inside an enclosure.