PLC (programmable controller) although the stable performance, convenient and flexible, the current is still the automation of the main controller unit.And professional controller based on microprocessor as the core, the generator voltage, rotating speed of diesel engine and water temperature, oil temperature, oil pressure, over current, short circuit and other signal, through sampling transform input microcomputer system, since the launch of realization of diesel generating sets, and other functions.

With the development of automation units, relay control logic circuit composed of electronic components and the separation control gradually become obsolete.PLC (programmable controller) although the stable performance, convenient and flexible, the current is still the automation of the main controller unit.Exist but its peripheral circuit is complex, and need to configure the voltage, speed, oil pressure, water temperature, oil temperature of logic circuit and relay can't overcome the defects such as port extension.The development of science, and promote the creation of professional automation unit controller.Professional controller for its use of flexible, simple peripheral circuit and strong professional advantages, such as rapid popularization and application.

Professional controller based on microprocessor as the core, the generator voltage, rotating speed of diesel engine and water temperature, oil temperature, oil pressure, over current, short circuit and other signal, through sampling transform input microcomputer system, since the launch of realization of diesel generator set, since the investment and various fault protection alarm function.Controller is mainly composed of three parts: (1) motor control part, mainly including voltage regulating device, overload, short circuit protection unit and voltage regulator, etc.(2) diesel engine control part, mainly from the start, stop operation, electronic regulator and liquid crystal display modules and other components, realize to monitor the working status of diesel engine.(3) microcomputer control part, this part of the diesel generating sets is the core of the automatic controlHeart, mainly controlled by the host unit, the signal detection unit and the parameters of the power drive unit, display unit and power supply unit, etc.Professional control system the main function is as follows:

1) with automatic, manual, test three kinds of operation mode.

2) phase of the generator and enterprise (line) voltage, current, frequency, speed, power, temperature, pressure, and so on and so forth, real-time monitoring, without external appearance.Of tachycardia, low oil pressure, water temperature is high, the overvoltage, undervoltage, over frequency, low frequency, over current, short circuit and start the fault can alarm in real time.

3) on the unit output voltage and frequency was compared with the set value for automatic adjustment, no applied voltage frequency controller.