Continuing Education
Electronic Theorems for Design and Repair Professionals
Ohm’s Law Wheel and other important circuit theorems are discussed for practical use. Virtually all contemporary elevators and escalators are powered by electrical motors, either DC or AC run in...
Traction for Field Personnel, Part Two
Conclusion of series examines components used in electric elevator systems that provide safe traction. In Part 1 (ELEVATOR WORLD, August 2017), we learned the design basics of traction, starting with...
Traction for Field Personnel, Part One
Unintended loss of traction, resulting from component deterioration, for example, is very hazardous and can allow an elevator to move uncontrolled. Four factors determine and control traction: The traction ratio...
CAN Bus for Elevators
Details of this important data-conveyance system are given, from the ground up. Controller Area Network (CAN) bus is one of several serial-bus electronic communication methods that has found favor in...
Troubleshooting Elevators
How to find and correct problems with motors, drives and controllers When it comes to troubleshooting, elevators are a special case. The electric motors that power them are larger and...
Full-Cab A18.1/B355 Lifts – An Alternative to LU/LA Elevators
How to differentiate between lifts and elevators in North America and choose between a traditional or LU/LA elevator, stairlift, IPL or VPL As the population of North America ages, accessibility...
Thoughts on Escalator and Moving Walk Maintenance
Procedures, frequency, training, responsibilities and more are covered in the examination of maintenance. The Merriam-Webster dictionary defines maintenance as “the upkeep of property or equipment.” Escalators and moving walks, like...
Reading Electronic Schematics
How to understand and create tools essential in troubleshooting and comprehending electronic devices In electronic equipment, there has been a continuous move toward more complexity and increased miniaturization. These trends...
Making Hydraulic Elevators Heat Resilient
The dangers of heat in hydraulic systems and how to guard against them One of the biggest technical challenges a hydraulic engineer faces is designing a heat-resilient hydraulic elevator system....
Oscilloscopes, Part Two
The first installment of this series (ELEVATOR WORLD, May 2016) looked at the oscilloscope’s historical roots, including some early innovations and theoretical underpinnings, such as the Fourier Transform. This concluding...
