Wallace Perimeter Security ALPHA - Installing Photoelectric Sensors

Alpha/Delta (Kinetic Operator) Installation and Maintenance Manual Revision 1 - MAY 2023
145
INSTALLING PHOTOELECTRIC SENSORS FOR EXTERNAL ENTRAPMENT PROTECTION ONLY
Installing Photoelectric Sensors for External Entrapment
Protecon Only
Refer to Figure 42 to help plan the most appropriate placement for the photo eyes being installed as
external entrapment protecon devices. If no other external entrapment protecon devices (like edge
sensors) are installed, then at least two photoelectric sensors are required to guard the gate in each
direcon of travel. If the photo eyes are tripped, the operator will temporarily stop the gate.
Consult a photoelectric sensor manual for wiring details. Make all electrical connecons to SmartDC
Controller as shown in Figure 43 on the next page.
Operaon Notes
• A photo eye trip does not reverse gate.
• The SmartDC Controller soware is factory set to stop upon photo eye trip.
• Soware is congurable to stop and reverse two seconds upon photo eye trip.
If the photo eye is cleared within ve seconds, the gate will proceed in the direcon of travel.
The SmartDC Controller has three sensor inputs (Sensor 1, Sensor 2, Sensor 3) which can be used for any
type of photoelectric inputs. See “Figure 43. Connecons for Entrapment Protecon Only” on page
146. Underwriters Laboratories requires that any non-contact sensor used as an external entrapment
protecon device, must be tested to, and recognized by, the UL 325 Standard.
There are two common types of photoelectric sensors, thru-beam and retro-reecve, and each has its
advantages.
Figure 42. Photoeye Placement as External Entrapment Protecon Devices