Inovance MD520-4T18.5B Frequency Converter

The Inovance MD520‑4T18.5B is a premium 18.5kW three‑phase AC drive belonging to the reliable Inovance MD520 series, specially engineered for industrial motor speed and torque control. Designed for 380V to 480V three‑phase power input, the Inovance MD520‑4T18.5B serves as an ideal universal inverter for both asynchronous induction motors and permanent magnet synchronous motors, covering diverse medium and heavy‑duty industrial automation scenarios.

Equipped with a built‑in dynamic braking unit, the Inovance MD520‑4T18.5B delivers outstanding overload resistance, supporting 150% rated load overload operation for 60 seconds to cope with frequent startup, shutdown and variable load working conditions. Adopting advanced SVC open‑loop and FVC closed‑loop vector control technology, this Inovance MD520 series drive achieves 200% high starting torque at zero speed, ensuring stable, precise and efficient motor operation without jitter or speed deviation.

Industrial reliability is the core advantage of the Inovance MD520‑4T18.5B. The drive features conformal coated circuit boards and strict industrial‑grade protection, adapting to harsh working environments with high temperature, dust and humidity. It can stably operate at an ambient temperature of up to 50°C, greatly reducing equipment failure rates and extending service life. In addition, the Inovance MD520‑4T18.5B complies with C2/C3 electromagnetic compatibility standards, effectively suppressing electromagnetic interference and ensuring compatibility with other precision automation equipment on site.

In terms of functional scalability, the Inovance MD520‑4T18.5B offers rich built‑in functions including fault self‑diagnosis, tension control, position control and limp mode protection. It supports multiple mainstream industrial communication protocols, enabling seamless connection with PLC and automation control systems for quick system integration and intelligent upgrading. With an adjustable carrier frequency ranging from 0.8kHz to 16kHz, the drive lowers operating noise and meets the noise reduction requirements of high‑precision production workshops.

Widely applicable to fans, water pumps, conveyors, mixers, textile machinery and packaging equipment, the Inovance MD520‑4T18.5B is a cost‑effective high‑performance inverter for industrial users. Compared with traditional imported drives, the Inovance MD520‑4T18.5B balances superior performance, stable quality and competitive pricing, becoming the preferred power control solution for automation system integrators and equipment manufacturers worldwide.