HGM8110DC-2 GENSET CONTROLLER USER MANUAL
HGM8110DC-2 Genset Controller 2020-02-20 Version 1.0 Page 69 of 69
16
FAULT FINDING
Table 49 - Troubleshooting
Symptoms
Possible Solutions
Controller no response with power.
Check starting batteries;
Check controller connection wirings; Check DC fuse.
Genset shutdown
Check the water/cylinder temperature is too high or not;
Check the genset AC voltage;
Check DC fuse.
Controller emergency stop
Check emergence stop button is correct or not;
Check whether the starting battery positive is connected with the
emergency stop input correctly;
Check whether the circuit is open.
Low oil pressure alarm after crank
disconnect
Check the oil pressure sensor and its connections.
High water temp. alarm after crank
disconnect
Check the temperature sensor and its connections.
Shutdown Alarm in running
Check related switch and its connections according to the
information on LCD;
Check programmable inputs.
Crank not disconnect
Check fuel oil circuit and its connections;
Check starting batteries;
Check speed sensor and its connections;
Refer to engine manual.
Starter no response
Check starter connections; Check starting batteries.
Genset running while ATS not
transfer
Check ATS;
Check the connections between ATS and controllers.
RS485 communication is abnormal
Check connections;
Check COM settings are correct or not;
Check A and B wires of RS485 are connected reversely or not;
Check whether RS485 transfer model is damaged or not;
Check whether communication port of PC is damaged or not.
ECU communication failed
Check connections of CAN high and low polarity;
Check if
120Ω resister is connected correctly;
Check if engine type selection is right or not;
Check if controller and engine connection wiring is right or not,
and whether output setting is right or not.
ECU warning or stop
Get information from alarm page of LCD;
If there is detailed alarm, check engine according to description.
If not, please refer to engine manual according to SPN alarm
code.
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