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Elevator drives eliminate the need for contactors

19 January, 2024

The Brazilian motors and drives manufacturer WEG has announced a new series of lift drives that, it says, “redefine elevator technology”. The ADL500 drives use a technology called EBC500 (Electronic Brake Control) that eliminates the need for contactors in what WEG calls a “zero contactors concept”.

There are three models – the ADL550, ADL530 and ADL510 – tailored for high-rise, medium-rise, low-rise or modernisation projects.

“The ADL550 is equipped with a comprehensive safety package and advanced features,” explains Karim Boudaoud, WEG Automation Europe’s product manager. “This model is ideal for high-rise buildings, while the ADL530 accommodates both asynchronous and synchronous motors, featuring an integrated universal multi-encoder interface, with a range of encoders (EnDat, SinCos, BiSS and Digital Incremental) already integrated into the inverter. This innovative design eliminates the need for additional cards, streamlining stock management and setup.”

The ADL510 is designed for asynchronous motors typical of low-rise buildings or modernisation projects and covers ratings from 4–15kW. It is said to be easy to install.

The drives, which are certified to European standards EN81-20 and EN81-50, combine elements of the series’ predecessor, the ADL300, with functions such as Safe Torque Off (STO), Safe Brake Test (SBT) and the Safe Brake Control (SBC) and the EBC accessory which allows operators to control and monitor motor brakes to avoid unintentional movements.

WEG’s new elevator drives come in three versions for different types of application

Efficiency has been designed into the new drives, including a standby function that eliminates idle-state energy consumption. Rechargeable external supercapacitors provide energy peak shaving to avoid spikes in consumption. Regeneration is possible using WEG’s AFE200 active front end power supply.

An app (called WEG Liftouch) for Android, IOS and Windows platforms allows local and remote monitoring, tuning and alarm checks. Whether onsite using a Wi-Fi connection, or remotely via WEG’s Drives RMS (Remote Management System) portal, operators can manage operations easily and precisely.

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