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- Limit_switch abstract "In electrical engineering a limit switch is a switch operated by the motion of a machine part or presence of an object. They are used for control of a machine, as safety interlocks, or to count objects passing a point. A limit switch is an electromechanical device that consists of an actuator mechanically linked to a set of contacts. When an object comes into contact with the actuator, the device operates the contacts to make or break an electrical connection.Limit switches are used in a variety of applications and environments because of their ruggedness, ease of installation, and reliability of operation. They can determine the presence or absence, passing, positioning, and end of travel of an object. They were first used to define the limit of travel of an object; hence the name “Limit Switch.”Standardized limit switches are industrial control components manufactured with a variety of operator types, including lever, roller plunger, and whisker type. Limit switches may be directly mechanically operated by the motion of the operating lever. A reed switch may be used to indicate proximity of a magnet mounted on some moving part. Proximity switches operate by the disturbance of an electromagnetic field, by capacitance, or by sensing a magnetic field.Rarely, a final operating device such as a lamp or solenoid valve will be directly controlled by the contacts of an industrial limit switch, but more typically the limit switch will be wired through a control relay, a motor contactor control circuit, or as an input to a programmable logic controller.Miniature snap-action switch may be used for example as components of such devices as photocopiers, computer printers, or microwave ovens to ensure internal components are in the correct position for operation and to prevent operation when access doors are opened. A set of adjustable limit switches are installed on a garage door opener to shut off the motor when the door has reached the fully raised or fully lowered position. A numerical control machine such as a lathe will have limit switches to identify maximum limits for machine parts or to provide a known reference point for incremental motions.".
- Limit_switch thumbnail Eindschakelaar_op_de_Mallegatsluis_in_Gouda.JPG?width=300.
- Limit_switch wikiPageID "4689915".
- Limit_switch wikiPageRevisionID "606356977".
- Limit_switch hasPhotoCollection Limit_switch.
- Limit_switch subject Category:Electrical_engineering.
- Limit_switch subject Category:Sensors.
- Limit_switch type Artifact100021939.
- Limit_switch type Detector103180969.
- Limit_switch type Device103183080.
- Limit_switch type Instrumentality103575240.
- Limit_switch type Object100002684.
- Limit_switch type PhysicalEntity100001930.
- Limit_switch type Sensors.
- Limit_switch type Whole100003553.
- Limit_switch comment "In electrical engineering a limit switch is a switch operated by the motion of a machine part or presence of an object. They are used for control of a machine, as safety interlocks, or to count objects passing a point. A limit switch is an electromechanical device that consists of an actuator mechanically linked to a set of contacts.".
- Limit_switch label "Endlagenschalter".
- Limit_switch label "Limit switch".
- Limit_switch label "Sensor final de carrera".
- Limit_switch label "Концевой выключатель".
- Limit_switch sameAs Koncový_spínač.
- Limit_switch sameAs Endlagenschalter.
- Limit_switch sameAs Sensor_final_de_carrera.
- Limit_switch sameAs m.0j9nm8f.
- Limit_switch sameAs Q1340519.
- Limit_switch sameAs Q1340519.
- Limit_switch sameAs Limit_switch.
- Limit_switch wasDerivedFrom Limit_switch?oldid=606356977.
- Limit_switch depiction Eindschakelaar_op_de_Mallegatsluis_in_Gouda.JPG.
- Limit_switch isPrimaryTopicOf Limit_switch.
