AEC Manuals

American Electric Control AEC4900 Intelligent Motor Controller Technical Manual

The AEC4900 series is an intelligent motor controller designed for AC 50 Hz motors with rated voltages up to 660 V and currents up to 250 A. It offers overload, over‑heat, ground‑fault, leakage, undervoltage, overvoltage, and other protections, plus measurement, self‑diagnosis, maintenance management and bus communication functions.

The controller is built on a micro‑processor platform with a modular, compact design that can be installed in low‑voltage MCC panels or drawer cabinets of 1/4 module or larger. It supports internal or external current transformers, RS‑485 communication (Modbus‑RTU or Profibus‑DP), and optional auxiliary functions such as 4‑20 mA analog output and leakage detection. This manual is written in Chinese.

Covers: Overview · Product Classification and Ordering · Installation · Technical Parameters · Special Control Functions · Communication Interface