P0916N] OB FOXBORO
Brand : FOXBORO
Model number :P0916N] OB
Origin :USA
Warranty: One year
Contact information :+ 86-17735379951
Email :340565517@qq.com
The time control of fast acceleration and three-level deceleration braking resistor switching for AC dual speed elevators is completed by the PLC internal timer. The PLC program is directed according to the call signal, and the fast train starts and runs, while the slow train decelerates and brakes.
There are many AC speed regulating elevators, and the methods of using PLC to achieve control are also different. PLC directly controls the direction of elevator operation, maintenance operation, and fast train operation. The speed change signal sent by PLC switches the main driving circuit from fast train operation to deceleration braking state, and the speed change signal is input to the governor. The set deceleration operation curve controls the braking current through the speed regulator, and closed-loop control is carried out through speed or position detection, When reaching zero speed, the governor sends a zero speed signal to the PLC, which controls the holding brake to stop.Allen Bradley SLC 500 1746 NI4 Analog Input Module
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Designing a conventional circuit requires buttons, time relays, and intermediate relays. Designing complex circuits also requires analog controllers and intelligent controllers. After using PLC, these problems can be easily solved, eliminating the need for complex external circuits and enabling easy control of devices on touch screens and computers
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