Technology
Can a Motor Drive Harm an Elevator or Escalator System?
Testing to reduce high-frequency currents produced by VFDs and DC controllers is conducted. Most modern elevator electric motors run via a variable-frequency drive (VFD) for AC motors and a DC...
The Space Elevator
Ninth Symposium on Lift & Escalator Technologies will be reaching for greater heights in September. Editor’s Note: Dr. Bryan Laubscher of The International Space Elevator Consortium (ISEC) will be the...
How Biodegradable Oils Function in Hydraulic Environments
Various popular fluids are examined, trouble signs are identified, and solutions are given. By Mark Kreitzburg and Doug Muennich The negative environmental effects of using petroleum and other nonbiodegradable lubricants...
Jerk-Free Takeoff With Pulsed Pre-Torque Drive Software
New method and system for reducing rollback senses needed pre-torque before the mechanical brake is released, resulting in a smooth start. by Peter Stipan, Garry Anderson and John Backman Magnetek...
The Power – and Power Savings – of PMS Technology with Regenerative Drives
In the last decades of the 20th century, microprocessor controls replaced conventional relay controls, and AC variable-voltage drive systems were upgraded with AC VV, variable-frequeny technology. However, one of the...
An Effective Energy-Saving Elevator
How growing demand for a power-storage battery for elevators combined with a control system can be met by K. Takasaki, R. Ootsubo, J. Takeda and S. Nojima Designers in various...
Modern Information Systems for Elevators
Products can help create a more user-friendly experience for owners, operators and users. Members of today’s society use smartphones and tablet PCs everywhere, and expect similar user interfaces from other...
Data-Driven Maintenance
Making use of the Internet of Things, big data and machine learning This article was first presented at the Fifth Symposium on Lift & Escalator Technologies, www.liftsymposium.org. New technologies such...
South Korea’s Escalator Technology Is Climbing
Sinnam Station Subway Line 3 in Daegu City earns national record as longest new escalator. In April 2015, South Korea’s new longest escalator in the country commenced operation. It had...
How Fast Could the Fastest Elevators Be?
Examining what limits passenger-elevator speed and how faster ones will come to be available by Dr. Albert So and Ricky Chan Last year, the first author of this article published...
