HGM7110DC Genset Controller
HGM7110DC Genset Controller Version: 1.0 2014-09-27 Page
68
of
68
15 FAULT FINDING
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;
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 setting of COM port is correct or not;
Check RS485’s connections of A and B is reverse
connect or not;
Check RS485 transfer model whether damage or not;
Check communication port of PC whether damage.
ECU communication failed
Check connections of CAN high and low polarity;
Check if corre
ctly connected of 120Ω resister;
Check if type of engine correct;
Check if connections from controller to engine and output
ports setting are correct.
ECU warning or shutdown
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.
