Fault Finding - Smartgen HGM9510 User Manual

18 FAULT FINDING

Symptoms
Controller no response with power.
Genset shutdown
Controller emergency stop
Low oil pressure alarm after crank
disconnect
High water temperature alarm after
crank disconnect
Shutdown alarm in running
Crank not disconnect
Starter no response
Genset running while ATS not
transfer
RS485 communication abnormal
ECU communication failure
ECU warning or stop
HGM9510 Genset Parallel Controller User Manual
Table 48 Fault Finding
Check starting batteries;
Check controller connection wirings;
Check DC fuse.
Check the water/cylinder temperature is too high or not;
Check the AC genset voltage;
Check DC fuse.
Check emergence stop button is correct or not;
Check whether the starting battery positive be connected with the
emergency stop input;
Check whether the circuit is open.
Check the oil pressure sensor and its connections.
Check the water 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 setting of COM port is correct or not;
Check RS485's connections of A and B is reverse connect or not;
Check RS485 transfer module whether damage or not;
Check communication port of PC whether damage.
Check connections of CAN high and low polarity;
Check if correctly connected of 120Ω resister;
Check if type of engine correct;
Check if connections from controller to engine and setting of outputs
correct.
Get information from LCD of alarm page;
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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Possible Solutions
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