3700 Sagamore Parkway North . PO Box 5729 . Lafayette, IN 47903 USA . Ph: 765-423-1505
Electronic PathFinder Maze System
8
Description:
When using the photocell monitors for the runways of the Model 89000B, all photocell
connections are made through the Model 81408/09 I/O block. For the Model 89000B you can
have a maximum of 16 photocells connected at one time.
1. Locate the first runway, labeled 1. Use the IR mounting kit to mount the photocells on the
outside of the Plexiglas walls. Place the photocells on the IR mounts at the desired positions.
Usually located at the beginning and/or end of the runway.
2. Connect the first photocell to the Model 81408 I/O block.
Red
-
+28 VDC
Black
-
GND
Blue
-
Normally Open connection (Active Low “gnd”)
Clear
-
Normally Closed connection (Active High “5v”)
3. Connect the Blue wire of the Model 81413 to input #1 of the Model 81408/09 for the first
photocell.
4. Repeat for all remaining photocells, increasing inputs for photocells.
5. Please keep the photocells wiring to the outside of the column.
6. When you apply power to the ABET system with the photocells attached, a red led will light up
on the light source. If the receiver detects the light from the source, the red led on the
receiver will light up. When the red led on the receiver is off, the light source is not detected.
Adjust the photocells to make sure light is detected properly when aligned with the light
source. Make sure the red led turns off properly when the light source beam is broken.
7. All photocells from the Model 81413 are configured as inputs on the ABET system. When the
light source is detected, its’ ABET input will read OFF. When the beam is broken, its’ input
changes to ON.
Note:
It is important to keep the photocells clean and aligned for proper operation.
Required tools: Flathead Screwdriver (included)
(
H) Model 89000B Connections for Photocell Runway Monitor