Product Features:

◎  An integrated system combines frequency converters, logic control unit for construction hoists, braking unit, and motor brake power supply module;

◎ Features brake failure protection in open-loop vector condition. If the brake fails to grip tightly after shutdown within a period of time and causes the cab slip, the hoist can automatically suspend the cab at zero speed and alarm brake failure at the same time, notice the operator to lower the cab to the ground. It adds an electrical protection to the existing mechanical anti-fall brake;

◎ Adopts an open-loop vector control mode with a professional and reliable brake release logic sequence, ensuring reliable sensation during brake, release operation, providing excellent comfort level;

◎ Possesses high-torque output at zero-speed with open-loop vector control, ensuring smooth and reliable operation at zero speed in both forward and reverse directions without relying on the brake or DC braking for support, eliminating any jerking sensation;

◎ Incorporates a built-in load limiter protection device, avoiding customers to purchase a separate load limiter;

◎ All limit and master control signals are clearly indicated with LEDs and silk-screen markings, facilitating easy installation and maintenance.