Digital Genset Controllers


Digital Genset PLC Controllers



Rotating Image

The GCU-3000 is the advanced Digital Genset PLC Control Unit. It delivers full Genset wiring and protection and equipped with most accurate water temperature and oil pressure sender available on the market. The design is to be operation friendly with extra large easy to read LCD display and graphical warning icons. The module requires no addition connection to a PC, all function settings can be programmed directly on the front panel. It is equipped with optional USB, RS485, and Ethernet remote communication functions to allow remote operation.


  • Micro-Processor auto control & protection
  • Easy to read large LCD display
  • Modularity design, easy to install
  • Provide accurate temperature and oil pressure display
  • Provide full engine & generator alarms signals shutdowns
  • All functions setting can be done directly on GCU-3000 no need for PC connection *1
  • Provide emergency stop and voltage adjustment on front panel *2
  • Total of 15 memorable event logs
  • Optional USB/RS485/Ethernet remote communication functions
  • J1939 CAN Bus Protocol Available (Option)
  • Customized settings are auto-saved into memory and will remain even when power is off.
  • Provide gen-set run-in modulate model and manual start and stop functions, when user proceed modulate controller will shut down all protect functions.


Power Input Voltage 8-60 Vdc (12V , 24V)
AC Sensing Input Voltage 15-500 Vac
Frequency 50/60 Hz
Power Dissipating Max. 7 watts
MPUSignal Input Voltage +/-2 to +/-70 Vac
Frequency 100 Hz Min. 10K Hz Max.
CT Specification Burden 2.5 VA
Protection & Alarm Status Indicators
  • Engine Start Failure
  • Engine Over Speed
  • Sender Failure
  • Abnormal AC Voltage
  • Low Engine Oil Pressure
  • Emergency Stop Activated
  • High Engine Temp.
  • MPUFailure
  • Generator Over Load
  • Abnormal Battery Voltage
Large LCD Display
  • Programmable Display with 3 Phase Volts, Amp & Frequency
  • Engine Operation Hours & Battery Voltage Display
  • Can Display Different Unit Of Temperature & Oil Pressure
  • Failure Signal Status By Graphic Display
Environment Operating Temperature -20 to +70 °C
Relative Humidity Max. 95%
Max. Vibration 5-25 Hz , +/-1.6 mm , 25-100 Hz , a=4g
Panel Cut-Out 251.5 x 157.0 +/-0.5 mm
Dimension 290.0 (L) x 166.0 (W) x 70.0 (H) mm
Weight 1341 g +/-2%

Diagram and Dimensions

Quick Link