Fault Finding - Smartgen HGM7110DC User Manual

15

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
abnormal
ECU communication failed
ECU warning or shutdown
HGM7110DC Genset Controller
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;
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 setting of COM port is correct or not;
Check RS485's connections of A and B is reverse
is
connect or not;
Check RS485 transfer model 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 output
ports setting are 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.
Version: 1.0
HGM7110DC Genset Controller
Possible Solutions
2014-09-27 Page 68 of 68