Advantages of Inverter In escalators

Advantages of the inverter when opening and closing escalators

In escalators and walkers with the inverter option, the voltage and frequency increase gradually with a preset acceleration. When the escalator starts up, the inverter supplies a regulated voltage to the motor drive to ensure a smooth take-off. In this way, the main circuits and other major components do not experience sudden forced movement, which greatly increases their service life. In addition, it can prevent sudden stop when shutting down, reducing the danger of people falling down.

Advantages of the inverter in escalator operating modes

An inverter allows the device to be used in different modes of operation. For example, if no one is using the escalator while it is in operation, after some time the speed of the device will automatically reduce to 40% of the rated speed, and this is called “Standby Mode”. Also, if the device is not used for a long time, it can be set to stop completely, and this is called “Stop Mode”. In both modes, the device starts to gain nominal speed when a passenger passes through the photoelectric sensor on the floor at the entrance.

VVVF escalator detection sensor option

The task of the sensor called “Photoelectric Sensor” is to detect a passenger entering the escalator. The photoelectric sensor comes in two types. The first type is a beam sensor, which can be mounted on two posts and detects passengers before they enter the boarding area, or a beam sensor, which can be mounted on the skirt panel in front of the combed junction line, without posts, and detects passengers the moment they step on the horizontal steps of the travel area. In the postless type, passengers feel the acceleration when the escalator reaches its rated speed because the distance between the beam sensor and the travel zone is short.

The second type is the microwave sensor, which is usually located at the railing entrance and can detect passengers on the descent before they reach the traffic zone. Because the distance between the detection zone and the motion zone in this type of sensor is small, the passenger does not feel any acceleration when the escalator reaches its rated speed.

Advantages of the inverter in escalator power consumption

The inverter generates different speeds by controlling the voltage and frequency, resulting in a significant reduction in power consumption. Without an inverter, power consumption increases three to four times during operation and especially during start-up.