The remote control is not directly control the positive and negative rotation of the motor, the remote control is a communication tool, as a signal transmission, whether it is wired or wireless, the remote control sends a signal, transmitted to the motor controller, the motor controller controls the positive and negative rotation of the motor; Remote control is a device used to remotely control machinery. Modern remote control is mainly composed of integrated circuit boards and used to generate different messages (message definition in communication: composed of a group of interrelated meaningful symbols that can express a complete meaning of information). Is composed of buttons. The remote control of the passenger door uses the latest technology to encode and decode, and controls the door pump solenoid valve in a flashing way to achieve the purpose of switching the automatic door. Used for bus (bus, bus) remote control to open and close the door, to avoid the driver needs to get on the door every time the trouble. The main component of the transmitting part of the remote control is the infrared light-emitting diode. It is actually a special light-emitting diode, because its internal material is different from ordinary light-emitting diodes, so when a certain voltage is applied at both ends, it emits infrared rather than visible light.
A motor positive and negative remote control can not use the remote control board and relay or AC contactor to design a positive and negative control circuit, can be achieved through the remote control to control the motor positive and negative rotation (three-phase or single-phase motor is OK) whether wired or wireless, the remote control signals, transmitted to the motor controller, motor controller control the motor positive and negative rotation.