HGM501Genset Controller
HGM501 Genset Controller Version V1.0 2012-07-10 Page 15 of 15
negative, and the wire size must not be less then 1.5mm
2
. In case of floating
charger connect charger output to battery positive and negative directly, then,
connect battery positive and negative poles to controller positive and negative
power supply input port using single lines to prevent charger interference into
normal operation of the controller.
WARNING: When the engine is running, start battery must not be removed.
1) AC input
Current transformer with rated secondary current 5mA must be externally
connected to the controller current input.
WARNING!
When generator is on-load, C. T. secondary must not be open
circuit.
2) Withstanding voltage test
CAUTION: If withstanding voltage test is conducted after the controller has
already been installed onto the control panel, please unplug all controller
terminal connections in order to prevent high voltage from damaging it.
11. TROUBLESHOOTING
Problem
Possible solution
Controller does not respond
on power on
Check start battery.
Check wiring to the controller
Check DC fuse
Low oil pressure alarm after
crank disconnect
Check oil pressure sensor and its wiring.
Alarm
shutdown
during
running
Check corresponding switch and wiring in
accordance with the information on the display
Fail to start
Check fuel return circuit and wiring
Check start battery
Consult engine manual
Starter
motor
does
not
respond
Check the wiring to the starter
Check start battery
