Shaanxi Xingguang answers your question "How to solve the fault of the electrical control part of the diesel generator set"?

>Shaanxi Xingguang answers how to solve the fault of the electrical control part of the diesel generator set? ① For manual control units, when the key is turned, the unit does not start or the LCD module controls the unit and the unit does not start when the unit start button is pressed
Check whether the key switch operates well and correctly or whether there is output on the module start port,< br/> Check whether there is a fault indication, repair the fault if necessary, and reset the corresponding fault information
\\~\\\\\Check the battery voltage. If the voltage is too low, recharge the battery until it is full. If the voltage value is normal, you need to check step by step according to the drawing whether the voltage signal is correctly sent to all control links, such as the throttle solenoid valve and starter motor, etc.
Check whether the emergency stop button has been relaxed
Whether the actuating relay is in good condition< br/> ② Start the motor to run, but the unit does not start the vehicle
Check the fuel level and ensure that the oil pipe is correctly connected
For the mechanical speed control system unit, check whether the throttle solenoid valve is properly closed
Electronic For electronic speed control system units, check whether the power supply is correctly connected and whether the voltage is normal
For electronic speed control system units, when starting the motor to run, use an electric meter to measure whether there is a correct AC voltage signal
Check the unit Whether the rotational speed has reached or exceeded the set normal starting rotational speed
Check whether the fuel delivery system is blocked
Check whether the air filter is clogged
Before starting the unit in cold areas, make sure Unit preheating
③ High water temperature fault alarm/shutdown
Check whether the unit is overloaded
Check the tightness of the fan belt
After the unit is completely cooled, check whether the cooling water level is sufficient
/> Check whether the water temperature sensor is damaged
Check whether the water temperature sensor switch alarm is correct.
Check whether the thermostat valve can be opened correctly
Check whether the gap between the water pump and the water tank is correct
Make sure the temperature in the machine room is not higher than ℃
④ Low oil pressure fault alarm/shutdown< br/> Check the oil level
Check the oil quality and viscosity
Check the oil temperature
Check whether the oil pressure sensor is damaged
Check whether the oil filter and oil line are blocked
/> Check whether the oil pressure sensor switch alarm is correct.
⑤ Overspeed fault shutdown
Check whether there is any abnormality in the speed instrument indication
Mechanical speed regulating mechanism, check whether the throttle lever is flexible and ensure correct adjustment
Electronic speed regulating system, check Check whether the throttle lever is flexible and check whether the actuator operates correctly
Newly calibrate and adjust the overspeed protection limit
Check whether the speed sensor is properly installed
After troubleshooting, reset the alarm signal on the control screen
br/> ⑥ High voltage alarm
Measure the actual value of the output voltage of the unit
Make sure there is no deviation in the display instrument
If the voltage is actually too high, you can check and readjust it in detail according to the steps
Confirm The nature of the load is non-capacitive and the power factor is not leading
Make sure the unit speed/frequency is normal
The actual voltage value is normal, you can check whether the circuit part of the voltage display is correct
Check the setting of the high voltage alarm Is the limit value correct and reasonable?
⑦ Low voltage alarm
Measure the actual value of the output voltage of the unit
Make sure that the display instrument has no deviation
If the voltage is actually low, you can check and re-check in detail according to the steps Adjustment
Make sure the unit speed/frequency is normal
The actual voltage value is normal, you can check whether the circuit part of the voltage display is correct
Check whether the three fuses on the rear wall of the generator terminal box are normal and The connection is firm
Make sure there is no major deviation in the three-phase voltage values
Make sure there is no phase loss
Make sure the load does not change significantly when an alarm occurs
Make sure the unit is not overloaded< br/> Check whether the set limits of the voltage high and low alarms are correct and reasonable
⑧The unit cannot be loaded
Check whether the voltage is normal
Check the nature of the load and confirm that there is no overload or advanced power factor
/> Confirm whether the switch is closed and all settings are correct and reasonable
For users who have matching equipment, they should focus on checking and related parts
Check all wiring for control conversion and make sure it is correct
Confirm the conversion The control switch is not in the position
When the transfer control switch is in the position, confirm that the connected mains power does not have normal voltage
Make sure that the power of the unit is correctly introduced at the unit end
Make sure that the main AC contactor is flexible to operate. No stuck phenomenon
⑨ Manual shutdown is not possible
Check whether the key switch and control switch are in the correct position
Make sure all electrical control parts are normal
Check whether the fuel solenoid valve is normal and replace it if necessary
For the electronic speed control system unit, confirm that all settings are correct and reasonable
Make sure the oil volume of the fuel injection pump is set correctly
Make sure the unit is running in manual mode
⑩ In automatic mode , the unit cannot achieve automatic shutdown
Make sure the mains power is completely restored to normal
Make sure the no mains power sensor has been activated
Make sure the automatic shutdown delay of the unit has been calculated
Check the fuel solenoid valve Is it normal? Replace if necessary
For the electronic speed control system unit, confirm that all settings are correct and reasonable
Make sure the oil volume setting of the fuel injection pump is correct
Remote monitoring cannot be achieved
Confirm monitoring The software has been correctly installed into the remote
Make sure the communication parameter settings on the monitoring interface correspond correctly to the actual connection form
Make sure the communication line is correct and reliable and not busy
Make sure the unit communication port has been correctly connected to the communication module
Remote emergency shutdown cannot be achieved
Confirm that remote communication of the unit has been achieved normally
Confirm that the relevant wiring is correct and there are no omissions
Confirm that the unit is in automatic standby mode
Confirm that the remote control password is correct Input
Remarks For more detailed fault analysis and troubleshooting of the control module, please refer to the accompanying information of the control box.
Contact address: Xinghuo Road, Xi'an City (No. 1, 9th Pavilion, Tianzheng Mechanical and Electrical Market District, Zhuhong Road, meters south of Ostrich King Building) Xingguang Generator Set