Automated Gate Systems Technician key terms

A sensor or contact device that detects a person or object in the gate's path and stops or reverses gate motion to prevent injury. Examples include photo eyes, edge sensors, and loops.

Built-in means of entrapment protection that is part of the operator itself, such as a torque or force sensing circuit that reverses the gate when resistance is detected, without relying on external sensors.

Entrapment protection provided by devices separate from the operator, such as photo eyes, edge sensors, or access control devices that signal the operator to stop or reverse when an obstruction is detected.

A non-contact device using an infrared beam between an emitter and receiver. When the beam is interrupted, the sensor signals the operator to stop or reverse the gate, protecting pedestrians and vehicles.

A contact sensor mounted on the gate's leading edge that detects pressure when the gate contacts a person or object and signals the operator to stop and reverse direction.

A vehicle detection device consisting of wire embedded in pavement connected to a detector unit. It senses metal vehicles and signals the operator to open, hold open, or prevent closing.

The set of devices that authorize and trigger gate operation, including keypads, card readers, intercoms, and remote controls, often integrated with the gate operator's control board.

The printed circuit board inside the operator that processes inputs from sensors and access devices and controls the motor, including reversal logic and safety inputs.

A gate operator that moves a gate horizontally along a track or cantilever system. It requires a rack and pinion or chain drive and specific safety clearances at the ends of travel.

A gate operator that opens and closes a gate by rotating it on hinges, typically using an arm, articulated arm, or underground hydraulic mechanism.

A switch that detects when the gate reaches a fully open or fully closed position and signals the operator to stop the motor at that point.

A mechanical or electronic device that limits the force the operator can apply to the gate, reducing injury risk by preventing excessive pressure during obstruction.

The setting on an operator that determines how much resistance the gate can encounter before the operator reverses or stops. It must be set per manufacturer instructions and tested regularly.

A motorized device that opens and closes a vehicular gate in response to a signal, designed for vehicle traffic and not for pedestrian use.

A gate intended for controlling vehicle traffic, which must be installed with entrapment protection and signage because pedestrians should not use it as a walkway.

A separate gate designed for people to walk through, distinct from a vehicular gate, often installed alongside an automated vehicle gate to keep pedestrians out of the vehicle path.

A required placard mounted near the gate warning pedestrians not to use the vehicular gate and to keep clear, per safety standards and manufacturer instructions.

A product safety standard for gate, door, and window operators that defines entrapment protection requirements, classifications, and testing criteria for automated gate systems.

A classification category (such as residential, commercial, industrial, or restricted access) that determines the duty cycle, usage, and safety requirements the operator must meet.

A rating describing how frequently an operator can run within a given time period, expressed as cycles per hour or a usage class, which determines suitability for a site's traffic volume.

A pre-installation assessment of the gate location covering gate type, dimensions, terrain, power availability, traffic patterns, and safety hazards to plan a compliant installation.

A drawing or document showing the proposed placement of the gate, operator, sensors, access devices, conduit runs, and power supply before installation begins.

One complete open-and-close sequence of the gate. Cycle counts and timing are used to size operators and plan maintenance intervals.

Tubing used to protect and route electrical wiring between the operator, power source, and control devices, sized and installed according to electrical code.

Wiring carrying control and sensor signals at reduced voltage, typically separated from line-voltage power runs to reduce interference and comply with code.

A manually operated switch that removes all electrical power from the operator for servicing, required by code and lockable to prevent accidental re-energizing.

The connection of electrical equipment to earth to provide a safe path for fault current, protecting people from shock and equipment from damage.

A mechanism that disengages the operator from the gate so it can be moved by hand during a power failure or emergency, required on most gate operators.

A secondary power source that allows the operator to continue functioning during a utility power outage, often required for egress and safety.

The process of testing and adjusting a newly installed system to verify that the operator, safety devices, and access controls function correctly and meet specifications before handover.

A documented list of incomplete items or defects found during commissioning or inspection that must be corrected before the installation is accepted and handed over.

A drawing updated to reflect the actual installed configuration of the gate system, including device locations and wiring, provided to the customer at handover.

The manufacturer's documentation covering operation, safety instructions, maintenance schedules, and warranty terms, which must be given to the end user at handover.

Scheduled inspection, lubrication, adjustment, and testing performed to keep the gate system safe and functional and to identify wear before it causes failure.

A systematic process of diagnosing faults by observing symptoms, testing components, and isolating causes in the operator, wiring, sensors, or access controls.

A test instrument used to measure voltage, current, and resistance when diagnosing electrical faults in the operator, wiring, and control circuits.

A safety procedure that isolates and locks energy sources before servicing equipment, preventing accidental energizing or release of stored energy while a technician works.

The operator's safety response when an entrapment protection device is triggered, halting motion and reversing direction to free a person or object.