Troubleshooting - Smartgen HGM7100N Series User Manual

15 TROUBLESHOOTING

Symptoms
Controller no response with power.
Gen-set 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
Gen-set running while ATS not
transfer
RS485 communication is abnormal
HGM7100N Genset Controller
HGM7100N GENSET CONTROLLER USER MANUAL
Table 16 - Fault and Solutions
Check starting batteries;
Check controller connection wirings;
Check DC fuse.
Check the water/cylinder temperature is too high or not;
Check the gen-set AC voltage;
Check DC fuse.
Check the function of emergency stop is correct or not;
Check whether the positive electrode of battery is connected with
emergency stop input correctly or not;
Check whether wire connection open circuit or not.
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 setting of COM port is correct or not;
Check RS485's connections of A and B is reversely connected or
not;
Check communication port of PC is damaged or not.
Add 120Ω resistor between A and B of RS485 is recommended.
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2020-09-10
Possible Solutions
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