HGM8151 Genset Parallel Controller User Manual Page 65 of 66
Parallel cable: EIA/TIA 568A standard on both ends or EIA/TIA 568B standard on both ends.
NOTE:
If switchboard (or router) network port has Auto MDI/MDIX function, crossover cable can also be used.
18
FAULT FINDING
Table 49 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 be connected to 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 temperature 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.
Fail to start
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 connecti
ons 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
correctly connected of 120Ω resis
ter;
Check if type of engine correct;
Check if connections from controller to engine and setting of
outputs correct.
