Harsen GU601A Generator controller 
The GU601A is an Auto Control and Safety Protect Module for Genset. Either AUTO or MAN mode can be chosen through the panel push button. When the controller is running in MANUAL mode, the Start and Stop push buttons control the starting of the Genset. In AUTO mode, the preset “remote start signal” controls the Genset. The module displays operational status and parameters on the front panel LCD. Its main characteristics as below:
1. Adopts MPU as core.
2. The protective parameters can be configured neatly through the panel push button and LCD.
3. Measure and display parameters, such as frequency and voltage of generator, battery voltage, oil pressure, coolant temperature and running hour of the engine.
4. Set fuel mode (N.C. or N.O.) via procedure.
5. 5 relay control outputs, except for fuel and start (crank) relay output, the rest are configurable.
6. 5 digital inputs, except for oil pressure and engine temperature, the rest are configurable.
7. With optional modes of built-in P/T-sensor for user.
8. Equipped with built-in communication interface to configure parameters by PC.
9. All connections of controller are by secure plug and socket, for ease and convenience to connect, move, maintain and replace the device.
1. Adopts MPU as core.
2. The protective parameters can be configured neatly through the panel push button and LCD.
3. Measure and display parameters, such as frequency and voltage of generator, battery voltage, oil pressure, coolant temperature and running hour of the engine.
4. Set fuel mode (N.C. or N.O.) via procedure.
5. 5 relay control outputs, except for fuel and start (crank) relay output, the rest are configurable.
6. 5 digital inputs, except for oil pressure and engine temperature, the rest are configurable.
7. With optional modes of built-in P/T-sensor for user.
8. Equipped with built-in communication interface to configure parameters by PC.
9. All connections of controller are by secure plug and socket, for ease and convenience to connect, move, maintain and replace the device.