Fault Finding - Smartgen HGM8110DC-2 User Manual

16 FAULT FINDING

Symptoms
Controller no response with power.
Genset shutdown
Controller emergency stop
Low oil pressure alarm after crank
disconnect
High water temp. alarm after crank
disconnect
Shutdown Alarm in running
Crank not disconnect
Starter no response
Genset running while ATS not
transfer
RS485 communication is abnormal
ECU communication failed
ECU warning or stop
HGM8110DC-2 Genset Controller
HGM8110DC-2 GENSET CONTROLLER USER MANUAL
Table 49 - Troubleshooting
Check starting batteries;
Check controller connection wirings; Check DC fuse.
Check the water/cylinder temperature is too high or not;
Check the genset AC voltage;
Check DC fuse.
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.
Check the oil pressure sensor and its connections.
Check the temperature sensor and its connections.
Check related switch and its connections according to the
information on LCD;
Check programmable inputs.
Check fuel oil circuit and its connections;
Check starting batteries;
Check speed sensor and its connections;
Refer to engine manual.
Check starter connections; Check starting batteries.
Check ATS;
Check the connections between ATS and controllers.
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.
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.
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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2020-02-20
Possible Solutions
Version 1.0 Page 69 of 69