Controlled Products Systems Group SWINGSMART DC 20 - Manual (Page 110)

Installing Photoelectric Sensors For Secondary Entrapment Protection Only
6-12 SwingSmart DC Installation and Reference Manual Revision E
If the photo eye has an internal switch for setting Light Operate vs. Dark Operate, select Light Operate. If the
photo eye has a relay output and has both NO and NC terminals, some experimentation may be required to
determine the proper connection. This is because, in the Light Operate mode, the output relay is normally
energized and releases when the beam is blocked. Some manufacturers label an output as NO, when it is
actually an NC contact. If the photo eye has a solid-state output you must choose a sinking type connection.
Three wires to the receiver and two wires to the emitter are all that is required.
• Depending on how the photo eyes are to be wired, +24VAC, +24VDC, or +12VDC, power is
provided via spades located just to the right of the COM terminal strip near the left side of the board.
• The receiver and emitter common wires are connected to the EYE COM terminal at the bottom, left
of the Smart DC Controller. (See NOTE.)
• 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 3-13 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.