Elevator door inverter (door drive) is a device used to control the elevator door opening and closing speed by adjusting the speed and voltage of the elevator door motor.

It makes the elevator door operator machine running efficiency,safety and comfortably. Specifically including:

• Controlling the motor speed by changing the power supply frequency
• Controlling the elevator door open and close.
• Energy saving: Adjust the door motor speed according to the actual demand to reduce energy consumption.
• Smoothness: Achieving the speed smooth mediation of the door machine to reduce vibration and noise.
• Safety: Providing safety protection functions to prevent the door machine from losing control and accidents.