Hitachi Computer Control Elevators (1990s)

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This article is about a Hitachi passenger elevator model produced between the late 1980s and mid 1990s, which is basically an improvement of the 1980s Hitachi "Computer Control" elevator model.

Overview

The 1990s Hitachi "Computer Control" refers to a standard traction passenger elevator model produced by Hitachi from the late 1980s until around the mid 1990s. It is essentially an improvement of the 1980s "Computer Control" model produced from 1981 until the late 1980s. In this model, the design has been slightly updated and a variable voltage and frequency (VVVF) inverter control has been applied which could save more power consumption compared to previous models.

No official model name is known so far. Some people in the elevator community claim it as "YPVF", but this is unverified due to lack of evidence. The microprocessor controller name is VF-DSK[1].

It is based on the Hitachi BUIL-ACE Quality 80 Series II model in Japan.

Characteristics

  • Compared to its predecessor, the motor produces a variable frequency (VF) noise during operation due to the application of VVVF inverter.
  • Ride quality is pretty much the same like the 1980s "Computer Control" type, with smooth acceleration and deceleration.
  • Car interior design has been slightly updated, particularly the ceiling design. The fixtures remain almost the same as before except for the car floor indicator.
  • Arrival chime is the standard Hitachi mechanical bell sound.
  • The car floor indicator no longer has the word "COMPUTER CONTROL".

Fixtures

The fixtures used in this model is almost the same as the 1980s "Computer Control" elevators, but the car floor indicator has been enlarged and is now angled between the car door and ceiling. The HITACHI logo and capacity has been moved to the car floor indicator, and the word "COMPUTER CONTROL" has been removed. In addition, the operating panels were changed from aluminum to stainless steel.

Buttons

The buttons are dark grey square button with white lettering and a small orange light on the side. Door control buttons are worded. Emergency intercom button is usually marked in yellow, and is located below the speaker.

By the mid 1990s, a black square buttons with orange light and raised edges (known as "B89") could be used in these elevators as an option.

Floor indicators

The car floor indicator uses analog display with a set of small red LED dots above the number, and these dots will blink when the car is moving. Some later installations may use a digital segments or even LED dot matrix display. Compared to the previous model, the car floor indicator has been enlarged, angled and now spans the entire car width.

Landing floor indicator could be analog, digital segments or LED dot matrix display. It could be on the hall station or above the landing door.

Known installations in Indonesia

Jakarta

  • Ministry of Tourism and Creative Economy (Sapta Pesona Building) (1994)
  • Pusat Pengelolaan Kompleks Gelora Bung Karno
  • Cipto Mangunkusumo Hospital (RSCM) - Deputy of Medical Building (modernized by Lawuindo)
  • Bank Central Asia - Rawamangun Branch
  • Trisakti University
    • Faculty of Economics and Business (FEB)
    • Faculty of Earth and Energy Technology (FTKE / Building D) (replaced into another brand)
  • Artha Graha Tower (1993)

Other cities/provinces

  • Bank Central Asia - Main Branch, Yogyakarta (1994)
  • Graha Pacific, Surabaya
  • Hotel Satelit, Surabaya (1995, modernized in the 2010s, hotel closed since 2016)

Videos

Notes and references