Product Information
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1 Product Information
1.1 Product Positioning and Features
The MD520 series AC drive is designed to be a general‑purpose high‑performance
current vector drive. It is mainly used to control and regulate the speed and torque of
three‑phase AC asynchronous motors and three‑phase AC permanent magnet motors.
With the high‑performance current vector technology, the MD520 feature rich
functions, convenient operations, and aesthetic appearance.
Figure 1‑1 Product appearance
The AC drive highlights the following:
● Drives three‑phase AC asynchronous motors and three‑phase AC permanent
magnet motors.
● Enhances drive performance to enable synchronous and asynchronous motors to
deliver 150% torque output at zero speed without an encoder, simplifying the
drive and control process.
● Addresses technical‑ and performance‑related problems of equipment in
industries such as cables, machine tools, metal products, petrochemicals, natural
gas, lifting, pulping and paper making, textile, printing and dyeing, and ceramics.
● Supports the VVC algorithm to simplify and stabilize the synchronous motor
control, especially at high speed.
● Upgraded based on the MD500‑PLUS, MD500, MD500E, MD290, and MD330 and
compatible with MD500‑PLUS options, including PG cards, communication cards,
I/O expansion card, and bracket.
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