LiftMaster LA500 Residential / Light Commercial Swing Gate Operator - Manual (Page 7)

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To prevent SERIOUS INJURY or DEATH from a moving gate:
• Entrapment protection devices MUST be installed to protect anyone who may
come near a moving gate.
• Locate entrapment protection devices to protect in BOTH the open and close
gate cycles.
• Locate entrapment protection devices to protect between moving gate and
RIGID objects, such as posts or walls.
NON-CONTACT SENSORS
If the photoelectric sensor beam gets blocked while the gate is moving, the gate will stop and reverse. The gate will not be able to travel in that direction until the obstruction
is cleared. It is best to use monitored photoelectric sensors, model CPS-UN4. If a monitored photoelectric sensor is not working or loses power or the beam is blocked, then ALL
gate operation in that direction will stop. Unmonitored photoelectric sensor models AOMRON and RETROAB are also acceptable.
CONTACT SENSORS (EDGE SENSORS)
If the electrically activated edge sensor comes in contact with an obstruction while the gate is moving, the gate will stop and reverse. The gate will not be able to travel in that
direction until the obstruction is cleared. Use non monitored edge sensor models G65MG0204, G65MGR020, or G65MGS020.
REQUIRED ENTRAPMENT PROTECTION DEVICES
SAFETY
REQUIRED ENTRAPMENT PROTECTION DEVICES
An entrapment zone is every location or point of contact where a person can become entrapped between a moving gate and a stationary object. All gate operator systems
REQUIRE two independent entrapment protection systems for each entrapment zone. This operator contains an inherent (internal) entrapment protection system (the primary
entrapment protection system) and REQUIRES the addition of an external entrapment protection system (non-contact photoelectric sensor or contact safety edge sensor) for
EACH entrapment zone.
Your application may contain one or many entrapment zones. Property owners are obligated to test entrapment protection devices monthly.
Edge Sensor for Open Cycle Edge Sensor for Close Cycle
3 Edge Contact Sensor
Safety Non-Contact Sensor
Sensor for Open Cycle
Sensor for Close Cycle