The control system of the bridge crane is an important part of the crane. If you want to operate the crane well, you must understand its control system in detail. In this issue, the Shandong bridge crane manufacturer will introduce the control system of the bridge crane to you.

1. Crane control form

1. Cam controller control

2. Main command controller control

2. Automatic control

1. Programmable controller automatic control. The operation of each mechanism of the crane depends on the program control device, and now the crane is mostly controlled by the programmable controller.

2. Automatic positioning device control. The automatic positioning of the crane generally determines the mechanism form of the device according to the use environment and accuracy requirements of the controlled object. The automatic positioning device usually uses various detection elements to cooperate with relays, contactors or programmable controllers to achieve automatic positioning. the purpose of positioning.

3. Ground operation, wired and wireless remote control hoist crane adopts ground control, and its key component is the manual button switch. Wired remote control is a method that uses a special cable or power line as a carrier, and uses a modem to transmit the signal to achieve control with only a few channels. Wireless remote control uses contemporary electronic technology to transmit information in the form of radio waves or light waves to achieve the purpose of control.

4. Deviation correction and electrical synchronization of cart running mechanism. The deviation correction is divided into manual deviation correction and automatic deviation correction. When the deviation correction exceeds a certain value, the deviation correction signal generator sends a signal, the driver disconnects the motor on the side of the leading outrigger, and turns on the motor on the side of the lagging outrigger for adjustment. Automatic deviation correction means that when the deviation exceeds a certain value, the deviation correction command generator sends an instruction, and the system performs automatic deviation correction. Electrical synchronization is in the AC drive, commonly used electric shaft system with a balanced motor to achieve electrical synchronization.

5. Crane electromagnet and its control circuit. It is mainly to provide the DC power supply of the electromagnet and complete the control requirements (suction and discharge). Its working mode is divided into two control forms of constant voltage and adjustable voltage.