Table of Contents
Advertisement
AC: Alternating Current. An electric current or voltage that reverses direction at regular intervals.
Alternate Action: Ability to open and close a fully open gate by using the same open command.
Arc: The area that is swept by a swing gate from fully closed to fully open position.
ATG: Anti-tailgating refers to a method of immediately closing an opening gate behind a vehicle so that
an unauthorized vehicle can not follow the authorized vehicle through the gate.
DC: Direct Current. An electric current of constant value flowing in one direction only.
Dynamic braking: Stopping the gate by activating the forward and reverse windings of the gate
Fault: An abnormal condition which causes the gate to stop to protect the gate and the user.
Gate sensitivity: The response of the gate operator to an exerting force to the gate.
Gear Box: A device that changes the speed and power of its driving force (motor).
Inrush current: Initial current drawn into an electrical device due to its capasitive or inductive nature.
Interrupt Bar or Edge: A switch which is installed at the edge of a gate to protect an object which is
LED: Light Emitting Diode. LEDs are indicators placed on the controller board which light up to
indicate an action in the system.
Limit switch: A switch which its closure indicates the gate has reached its open or close limit, causing
Limit cam: An object which its excursion corresponds to the gate traveling distance and closes the
limit switch at the open or close limit of the gate.
Loop sensor: A wire embedded in the ground for magnetically sensing large metallic objects (cars).
✔ ✔ ✔ ✔ Exit or Open Loop: activation opens the gate.
✔ ✔ ✔ ✔ Interrupt or Reverse or Reopen Loop: activation reverses or stops the gate.
✔ ✔ ✔ ✔ Shadow Loop: activation prevents a fully open or closed gate from moving while a vehicle
Loop detector: An electronic device that is activated by a loop sensor sensing a metallic object.
Master/Slave: A synchronized system containing a pair of gate operators.
Maglock: An electric magnet which is used to secure the closed gate.
Power Fail Option: A battery backup system which opens or closes the gate at power outage.
Pulley: A grooved wheel which transfers power via a belt.
Reclose Timer: An electronic timer which closes the fully open gate automatically.
Retry: A condition at which the stopped gate resumes its course automatically after the occurrence of
a Fault.
RPM: Rotation Per Minute is a term to indicate the speed of an rotary object.
Sprocket: A toothed wheel which transfers power via a chain.
Thermal overload: A condition at which a heat producing device shuts off automatically when it
Torque: A force that causes rotation.
Torque Limiter: A clutch-like mechanism used to relieve excessive torque generated by the gate on
Rev C
GLOSSARY
operator motor in each half AC cycle.
situated between the gate and the gate frame.
the gate to stop. There are two limit switches, open and close.
is inside the arc of a swing gate.
reaches a critical and damaging temperature level.
the gate operator.
Doc 6001194 (01-20259)
34 of 36
Advertisement
Table of Contents
