IFE ELEVATORS CO., LTD.
IFE ELEVATORS CO., LTD.

History of Elevator Control

Long ago, people used primitive lifting tools to transport people and goods.


1100 BC

Reel shovel

236 BC

Combined hoist and pulley system

Early 19th century

Steam engine

1889

Electrically powered


This means that elevators did not really appear until 1889. The development of elevator drive technology has gone through direct current motor drive, single-speed alternating current motor drive, two-speed alternating current motor drive, and now alternating current permanent magnet synchronous motor drive.


Since the development of electric drive, control has also gone through stages of relay control, PLC control, and microcomputer control, gradually moving towards integrated control.


  • Relay control (now banned)

  • PLC control (used for harsh environments or special elevators)

  • Microcomputer control (currently the most popular)


Elevator classification by drive system


  • Elevator with open-loop direct starting of single-phase AC induction motor drive system.

  • Elevator with open-loop drive system with variable-pole speed control of two-speed AC motor.

  • Elevator with closed-loop voltage and speed control system of two-speed AC motor.

  • Elevator with closed-loop voltage and speed control system of two-speed AC motor (referred to as ACVV).

  • Elevator with closed-loop voltage and speed control of single-speed AC motor (referred to as VVVF).

  • Elevator with closed-loop voltage and speed control system of AC permanent magnet synchronous motor (referred to as VVVF).

  • DC motor closed-loop voltage and speed control drive system.


Elevator classification by control system


  • Elevator electrical control system with car hand switch control.

  • Elevator electrical control system with car button switch control.

  • Elevator electrical control system with landing button switch control.

  • Elevator electrical control system with car and landing button switch control.

  • Elevator electrical control system with signal control.

  • Elevator electrical control system with group control.

  • Elevator electrical control system with two parallel control.

  • Elevator electrical control system with collective control.


Elevator classification by usage


Passenger elevators, ship elevators, miscellaneous elevators, freight elevators, vehicle elevators, tourist elevators, building construction elevators, medical elevators, and special elevators. Special elevators include inclined elevators, stereo parking garage elevators, fire elevators, refrigeration elevators, mine elevators, special elevators, sliding elevators, machine room elevators, door hoist elevators, and wheelchair elevators.


Elevator classification by management method


  • Elevator electrical control system with dedicated driver.

  • Elevator electrical control system without dedicated driver.

  • Elevator electrical control system with or without dedicated driver.

Recommended IFE Elevators And Escalators Products
Latest News & Blogs
Jul 15-2022
[Good News] IFE Elevator Entered The List Of 2022 Top 10 Elevator Manufacturers In China
On July 15, the list of "2022 Top 10 Elevator Manufacturers in China" launched by the Organizing Committee of the Global Elevator Industry Summit and ELEVATOR magazine was released in Beijin...
Apr 12-2023
What Is the Difference Between a Lift Escalator and Horizontal Moving Walk Escalator?
A lift (or elevator), an escalator, and a moving walkway are all types of transportation systems that help people move between different levels of a building or space. However, there are some key diff...
Jul 19-2023
Major Problems with Elevators
Is elevator maintenance being done every 15 days? Some users have reported that elevators in office buildings frequently experience malfunctions such as malfunctioning elevator cabin door switches, wh...