Harsen GU320a User Manual

GU320a Controller Manual
11
Low Oil Pressure After the safety-on time-delay timeout, the controller detects the oil pressure switch closed, the engine
stop instantaneously, and the LCD display “ALARM： LOW OILPRESS”， the fault indicator light “LOW OIL
PRESSURE”, the buzzer warn.
H Temperature The controller has detected the T-sensor switch of the engine closed, the engine stop instantaneously, the
LCD display “ALARM：COOLANT TEMP”，and the indicator light“HIGH TEMPERATURE” illuminate, the
buzzer warn.
Overspeed The controller has detected the running speed of the engine beyond the overspeed fault setting value, the
engine stop instantaneously, the LCD display “ALARM：OVER SPEED””，and the indicator light
“OVERSPEED” illuminate, the buzzer warn.
Under Speed The controller detects the running speed of the engine lower than the low speed fault value, the engine
stop instantaneously, and the LCD display “ALARM：UNDER SPEED”，the buzzer warn.
High Voltage The controller detect the output voltage of the generator higher than the high voltage fault value, the
engine will stop after confirming the delay, and LCD display “ALARM：V HIGH”，the buzzer warn.
Low Voltage After the safety-on delay timeout, the controller detect the output voltage of the generator lower than the
low voltage fault value, the LCD will display “ALARM：V LOW””after confirming the delay，and the buzzer warn.
Overcurrent The controller detect the output current of the controller higher than the over current fault value, the
engine will stop after confirming the delay, and the LCD display “ALARM：I HIGH”，the buzzer warn.
Standby Output If set the aux input to fault stop, then when the signal at the input is valid, the engine will stop
instantaneously, and the LCD display “ALARM：EXT. ALARM”，the buzzer warn.
NOTE:
 The data of low oil pressure pre-alarm is from the measuring of the oil pressure sensor, and the data of low
pressure stop fault is from the measuring of the oil pressure sensor (set for no use at factory) or the oil pressure
switch state.
 The data of high temperature pre-alarm is the water position from the measuring of the temperature sensor, and
the data of high temperature stop fault is the water position from the measuring of the temperature sensor (set for
no use at factory) or the temperature switch state.
 The rotating speed of the engine typically from the measuring frequency of the speed sensor mounted on the
flywheel of the engine, if no speed sensor equipped in the system, the controller will take the voltage frequency of
the generator output as the controlling and fault protection parameter. To be convenient for the user, part of the
data is rotating speed, RPM=HZ*30.
 Generator fault during the running of the generator: stop instantaneously after the high temperature , or low
pressure, or overspeed, or under speed occur. But the low speed and low pressure required the idle delay set to 0
(without idle function) to active protection, or it won't be active.
8 Parameter configuration
8.1 SYSTEM
NO. Item Preset Range
1.0
QUIT
1.1
CT 60 1~5000
1.2
VT 1 1~100
1.3
Comm Address 1 1~255
1.4
Default settings
1.5
<Language> English/中文
English
中文/English
1.6 Firmware update
8.2 GENERATOR
NO. Item Preset Range
2.0
QUIT

Harsen GU320a Specifications

General

Brand	Harsen
Model	GU320a
Category	Controller
Language	English