Generator controller common faults and maintenance experience
After many years of accumulation, will be Generator controller Common faults and maintenance experience and processing methods listed for generator maintenance personnel reference application.
The fault phenomenon | check | Check the result | The cause of the problem and the processing method |
The oil pressure and temperature measurements are inaccurate | Is there a connection sensors dedicated the cathode circuit | Have a connection | Reconnect the battery cathode to the engine block, especially rust |
Sensor connection screws is loose | There is no | - port voltage measure oil pressure sensor, requires less than 0.3 V | |
Low oil pressure alarm | LCD display is low oil pressure switch alarm or low oil pressure alarm | Oil pressure switch | - port configuration errors |
Start with no response | Low oil pressure | No processing reference oil pressure measurement | |
Start the motor rotation, but success cannot be started | If the LCD display start state | Is not normal | Read the instructions carefully |
If there is a electric fuel measuring controller output | There is no | The controller failure | |
With the output | Check the motor output of the controller | ||
If there is a electric starter motor measurement controller output | There is no | The controller failure | |
There are | - start relay failure | ||
Start the motor rotation, but success cannot be started | Check whether actuator movement or speed governor to the output of the actuator is more than 6 VDC | There are | Please refer to the speed control system troubleshooting methods |
There is no | Check if there is a power of governor | ||
If there is a power of governor | There is no | External extension relay contact is not good | |
There are | Please refer to the speed control system troubleshooting methods | ||
After the success of the start motor not separation | Check the startup success conditions configuration, especially start successful oil pressure | Strongly recommend the use of speed conditions as a condition of separation will be more accurate | |
Boot failure warning | Check the other warning message in the process of start | ||
Speed signal loss report to the police | Check for access speed sensor, or related lines | normal | |
Check whether the speed signal voltage is reached or exceed 2 vac | Low voltage signal | - clean the iron filings on sensors | |
No idle function | Check the governor of idle speed circuit connected to the controller | normal | - check the controller corresponding port configuration is correct |
No help in the operation of the downtime | Carefully check whether there is a warning message | There is no | The controller failure |
Since the launch of mains failure will not | Check the mains detection circuit | normal | Check the relevant mains failure configuration |
The outage failure warning | After downtime check whether the oil pressure is not zero | 0 | The controller failure |
During startup owe speed or undervoltage downtime | Increase the warm-up time |