HGM1790N
GENSET CONTROLLER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO., LTD.
HGM1790N GENSET CONTROLLER USER MANUAL
CONTENT
1. OVERVIEW ....................................................................................................................................... 4
2. PERFORMANCE AND CHARACTERISTICS ................................................................................. 4
3. SPECIFICATION............................................................................................................................... 6
4. OPERATION ..................................................................................................................................... 7
4.1. FRONT PANEL DESCRIPTION ................................................................................................... 7
4.2. INDICATOR LIGHTS.................................................................................................................... 7
4.3. PANEL KEYS ............................................................................................................................... 8
4.4. LCD ICONS ................................................................................................................................. 8
4.5. DISPLAY DESCRIPTION ............................................................................................................ 9
4.6. AUTO START/STOP OPERATION ............................................................................................10
4.7. MANUAL START/STOP OPERATION ....................................................................................... 11
5. PROTECTION ................................................................................................................................ 11
6. CONTROLLER BACK PANEL .......................................................................................................13
7. PARAMETER RANGE AND DEFINITION .....................................................................................15
7.1 PARAMETERS CONFIGURATION (TABLE 1) .........................................................................15
7.2 DEFINITION OF RELAY OUTPUTS (TABLE 2) ........................................................................19
7.3 DEFINITION OF DIGITAL INPUTS (ACTIVE WHEN CONNECT TO GND (B-)) (TABLE 3) ......19
7.4 SENSOR SELECTION (TABLE 4) .............................................................................................20
7.5 CONDITIONS OF CRANK DISCONNECT (TABLE 5) ...............................................................21
8. CONTROLLER FUNCTION SETTING ...........................................................................................21
8.1. PARAMETER SETTING ............................................................................................................21
8.2. LCD CONTAST ADJUSTMENT .................................................................................................22
8.3. GENERATOR FLYWHEEL TEETH AUTOMATIC ADJUSTMENT .............................................22
9. SENSOR SETTINGS CLARIFICATION .........................................................................................23
10. COMMISSIONING ..........................................................................................................................24
11. TYPICAL APPLICATION ................................................................................................................24
12. INSTALLATION ..............................................................................................................................25
12.1. FIXING CLIPS ............................................................................................................................25
12.2. OVERALL DIMENSION .............................................................................................................25
13. FAULT FINDING .............................................................................................................................27
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 2 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
Date
Version
Note
2016-10-11
1.0
Original release.
Chinese trademark
English trademark
SmartGen — make your generator smart
Smartgen Technology Co., Ltd
No. 28 Jinsuo Road
Zhengzhou
Henan Province
P. R. China
Tel: 0086-371-67988888/67981888
0086-371-67991553/67992951
0086-371-67981000(overseas)
Fax: 0086-371-67992952
Web: http://www.smartgen.com.cn
http://www.smartgen.cn
Email: sales@smartgen.cn
All rights reserved. No part of this publication may be reproduced in any material form (including
photocopying or storing in any medium by electronic means or other) without the written
permission of the copyright holder.
Applications for the copyright holder‟s written permission to reproduce any part of this publication
should be addressed to SmartGen Technology at the address above.
Any reference to trademarked product names used within this publication is owned by their
respective companies.
SmartGen Technology reserves the right to change the contents of this document without prior
notice.
Software Version
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 3 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
1. OVERVIEW
HGM1790N genset controller is suit for single unit automation and monitoring control (also can
be used for pimping unit). It can be started and stopped manually or via a remote start/stop signals.
HGM1790N controller can supervise and protect genset operation by gathering and analyzing
genset data like generate voltage, current, water temperature, oil pressure and so on, and
graphical LCD monitor on the front panel displays fault conditions and provides effective alarm
signals so as to do maintenance as soon as possible. Moreover, parameter threshold and delay
value can be adjusted via front panel or USB port (communicated with PC software).
2. PERFORMANCE AND CHARACTERISTICS
Graphical LCD display(with backlight), LED indicator, touch-buttons operation;
Hard screen acrylic material is used to protect screen.
Silicone panel and buttons are adopted to increase high and low temperature adaption
ability.
Power supply range DC (8~35)V，compatibility with 12V or 24V starter batteries;
Generator single phase voltage, current, frequency, power and load percentage parameters
are measured and displayed:
Generator Voltage V Generator Frequency Hz
Generator Power kW Generator Current A
Load Percentage %
Precision measured and displayed electric quantity of generator:
Oil Pressure kPa Temperature ºC
Fuel Level % Total Running Time H (max. 199999 hours)
Battery Voltage V Engine Speed RPM
Accumulated Start Times (max. 199999 times, displayed on PC)
With genset fault protection and display functions.
3 working modes: manual, auto, stop;
Compatibility with multiple temperature, pressure, fuel level sensors, which can be
user-defined and used directly; temperature sensors, pressure sensors can be used in
parallel with annunciator, providing analog quantity and increasing protection level at the
same time;
Multiple crank disconnect conditions to select (engine speed sensor, oil pressure, generator
frequency);
1 configurable input port which can be set as digital input or liquid level sensor;
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 4 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
4 fixed relay outputs (fuel relay, start relay, stop relay and idle relay);
1 configurable output port which can be set as common alarm output, fail to stop output,
preheat output or idle control output;
Parameters can be set and modified by users and saved in internal FLASH storage, which
means that they will not be lost in case of power off. Most parameters of the controller can be
modified using the front panel and all parameters can be adjusted by PC software via type-B
USB port;
Digital regulation of all parameters - instead of analog regulation using conventional
potentiometer - and, therefore, higher reliability and stability;
Modular design, self extinguishing ABS plastic enclosure and embedded installation way;
small size and compact structure with easy mounting
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 5 of 27
3. SPECIFICATION
Item
Content
Working Voltage
DC8. 0V to 35. 0V, Continuous Power Supply
Power Consumption
<1.2W (Standby mode: ≤0.5W)
Alternator voltage Input
AC 15V ~ AC 360 V (ph-N)
Alternator Frequency
50/60Hz
Speed Sensor Voltage
1.0V to 24V (RMS)
Speed Sensor Frequency
Max. 10KHz
Start Relay Output
1Amp DC28V DC B+ power supply
Fuel Relay Output
1Amp DC28V DC B+ power supply
Idle Relay Output
1Amp DC28V DC B+ power supply
Stop Relay Output
1Amp DC28V DC B+ power supply
Programmable Relay
Output
1Amp DC28V DC B+ power supply
Programmable Digital
Input
Active when connected to BCase Dimensions
95mm x 86mm x 46.5mm
Panel Cutout
78mm x 66mm
CT Secondary Current
Rated: 5A
Working conditions
Temperature: (-25~+70)ºC
Humidity: (20~90)%RH
Storage Condition
Temperature: (-30~+80)ºC
Protection Level
IP55: When waterproof rubber gasket installed between the
controller and panel fascia.
Insulation Intensity
Attach AC2.2kV voltage between AC high voltage terminal and low
voltage terminal (leak current below 3mA in 1 minute).
Weight
0.18kg
HGM1790N GENSET CONTROLLER USER MANUAL
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 6 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
4. OPERATION
4.1. FRONT PANEL DESCRIPTION
HGM1790N Panel Indication
4.2. INDICATOR LIGHTS
Stop status indicator light: genset in stop mode.
Auto status indicator light: genset in auto mode.
Manual start indicator light: genset in manual mode.
Alarm indicator light: blink slowly (1time/s) when warn alarm occurred; blink fast (5 times/s) when
shutdown alarm occurred.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 7 of 27
4.3. PANEL KEYS
Key
Definition
Description
Stop/Reset
In auto/manual mode, press this button will shutdown the genset;
Reset shutdown alarms when genset in alarm status; Indicator
lights and LCD icons status can be tested if press this button for
over 3s in stop mode; Stop immediately if press this button during
stop process; Quick exist parameter setting menu if press this
button.
Auto/Increase
Pressing this button will place the module into its auto mode, and
genset is controlled by remote start signals;
In settings menu moves cursor up and increases the set value.
Start/Decrease
Pressing this button will start genset.
In settings menu moves cursor down and decreases the set value.
Page Down
Using this button you can scroll pages of the LCD monitor;
Enter settings menu if hold and press over 2s;
Move cursor and confirm setting information in parameter setting
menu.
Icon
Definition
Icon
Definition
Genset start indication
Fuel Level Indication
Boot time is counting(reaching crank
disconnect condition)
Generator Voltage Indication
Emergency Stop Alarm
Battery Voltage Indication
Over Speed/Over Frequncy Alarm
Oil Pressure Unit
Under Speed/Under Frequency Alarm
Current With Load Unit
High Temp. Alarm
Hours Count
Low Fuel Level
Frequency Unit
Auxiliary Alarm
Temperature Unit
Low Oil Pressure
Speed Unite (revolutions per minute)
Fail to start
Active Power Unit
Fail to stop
Voltage Unit
Voltage Abnormal
Percentage
Over Voltage
Under Voltage
Over Current With Load
HGM1790N GENSET CONTROLLER USER MANUAL
4.4. LCD ICONS
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 8 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
4.5. DISPLAY DESCRIPTION
Generator: phase voltage L1, frequency F Load: active power, current
Load percentage Oil pressure, temperature
Fuel level, total running time Battery voltage, generator speed
Parameter setting
Remark:
1) When active power is “---”, which means active power is negative, please check voltage and current
connection.
2) Pressure, temperature and liquid level sensors are not displayed, which means not used; when
displayed “OFF” means sensors are open circuit.
3) When total running time are lower than 20000 hours, value before the decimal point is means running
hours and value after the decimal point is means 1/10 hour.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 9 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
4.6. AUTO START/STOP OPERATION
Auto mode is selected by pressing ; a LED besides the button will illuminate to confirm the
operation.
Automatic Start Sequence:
1) When “Remote Start” is active(6 terminal connect with B-), “Start Delay” timer is initiated;
2) When start delay is over, preheat relay energizes (if configured), preheat delay starts to count.
3) After the preheat delay, the Fuel Relay (if configured) is energized, and then one second later,
the Start Relay is engaged. If the engine fails to fire during this cranking attempts then the fuel
relay and start relay are stop to output; “crank rest time” begins and wait for the next crank
attempt.
4) Should this start sequence continue beyond the set number of attempts, the start sequence will
be terminated, will be displayed on LCD means Fail to Start and meanwhile, alarm
indicator light is blinking.
5) In case of successful crank attempt, the “Safety On” timer is activated, allowing Low Oil Pressure,
High Temperature and etc. alarms are without triggering the fault. As soon as this delay is over,
“start idle” delay is initiated (if configured).
6) During “start idle” delay, under speed, under frequency, under voltage alarms are inhibited.
When this delay is over, “warming up” delay is initiated (if configured).
7) When “warming up delay” is over, genset start normal running; if generator voltage or frequency
is abnormal, shutdown alarm signals will be sent by the controller.
Automatic Stop Sequence,
1) When the “Remote Start” signal is removed, the Stop Delay is initiated.
2) Once this “stop delay” has expired, the Generator Breaker will open and the “Cooling Delay” is
then initiated.
3) During “Stop Idle” Delay (if configured), idle relay is energized.
4) “ETS Solenoid Hold” begins, ETS relay is energized while fuel relay is de-energized.
5) "Fail to Stop Delay" begins, complete stop is detected automatically.
6) Generator is placed into its standby mode after its “After stop” delay. Otherwise, fail to stop
alarm is initiated.(LCD display )
Remark:
a) When press stop button in auto start status, genset will be stopped and enter into stop mode
simultaneously.
b) When in process of crank rest delay, preheat and ETS functions are energized when fuel output is
de-energized and crank rest time countdown is less than 7s. After crank rest delay, ETS output is
de-energized, fuel relay starts output, and preheat relay output is off before crank.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 10 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
Icons
Alarms
Type
Triggering Condition
Emergency Shut Alarm
Shut Alarm
Controller sent alarms when detected emergency
shutdown alarms.
Over Speed Shut
Shut Alarm
Controller sent alarms when genset speed is higher
than over speed threshold and last for over 2s.
Over Frequency Shut
Shut Alarm
Controller sent alarms when generator frequency is
higher than over frequency threshold and last for
over 2s.
Under Speed Shut
Shut Alarm
Detection after the idle delay, controller sent alarms
when genset speed is lower than under speed
threshold and last for over 10s.
Under Frequency Shut
Shut Alarm
Detection when genset is normal running, controller
sent alarms once genset frequency fell below under
frequency threshold and last for over 10s.
High Temp. Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms once genset temperature is higher than over
temp. threshold and last for over 3s.
High Temp. Input Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when high temperature input is active.
Temp. Sensor
Open/Short Circuit Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when temperature sensor resistance value
is above 6000Ω or under 5Ω.
Low Oil Pressure Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when genset oil temperature is lower than
low oil pressure threshold and last for over 2s.
Low Oil Pressure Input
Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when low oil pressure input is active.
Oil Pressure Sensor
Open/Short Circuit Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when oil pressure sensor resistance value is
above 6000Ω or under 5Ω.
4.7. MANUAL START/STOP OPERATION
1) MANUAL START: Press button to start the gen-set (No.2~7 of Automatic Start
Sequence for detail procedures). With high temperature, low oil pressure, over speed and
abnormal voltage during generator running, controller can protect genset to stop quickly.
2) MANUAL STOP: Press can shuts down the running generators. (Please refer to No.2~6 of
Automatic Start Sequence for detail procedures).
5. PROTECTION
Controller Alarms are as follows,
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 11 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
Icons
Alarms
Type
Triggering Condition
Gen Over Current Warn
Warn Alarm
Controller sent alarms when generator current is
higher than the preset value and over current action
is selected as “Warn”.
Gen Over Current Shut
Shut Alarm
Controller sent alarms when generator current is
higher than the preset value and last for over than
the delay value (over current action is selected as
“Shutdown”).
Gen Over Current
Cooling Shut
Shut Alarm
Controller sent alarms when generator current is
higher than the preset value and last for over than
the delay value (over current action is selected as
“Cooling Shutdown”).
Gen Over Volt Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when generator voltage is higher than over
voltage threshold and last for over than voltage
abnormal delay value.
Gen Low Volt Shut
Shut Alarm
Detection after safe running delay, controller sent
alarms when generator voltage is lower than under
voltage threshold and last for over than voltage
abnormal delay value.
Fail to Start
Shut Alarm
Controller Sent alarms when genset fail to start in
preset attempts.
Auxiliary Shut Warn
Input
Shut Alarm
Controller sent alarms when auxiliary input port,
which is configured as “auxiliary shutdown alarm
input”, is active.
Low Fuel Level Warn
Warn Alarm
Controller sent alarms when fuel level is lower than
low fuel level threshold and last for over 10s.
Low Fuel Level Input
Warn
Warn Alarm
Controller sent alarms when low fuel level input is
active.
Fuel Level Sensor
Open/Short Circuit Shut
Warn Alarm
Controller sent alarms when Fuel level sensor
resistance value is above 6000ohm or under 5
ohm.
Fail to Stop
Warn Alarm
Controller sent alarms when genset fail to stop in
stop duration.
Low Battery Volt Warn
Warn Alarm
Controller sent alarms when battery voltage is
lower than under voltage threshold and last for over
20s.
High Battery Volt Warn
Warn Alarm
Controller sent alarms when battery voltage is
higher than over voltage threshold and last for over
20s.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 12 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Function
Cable Size
Remarks
1
DC Voltage Input B-
1.5mm2
Connect to negative of starter battery
2
DC Voltage Input B+
1.5mm2
Connected to positive of starter battery. If wire length
is over 30m, better to double wires in parallel. Max.
20A fuse is recommended.
3
Emergency Stop Input
1.0mm2
B+ voltage input is active, and connected to
emergency stop normal closed button.
4
Fuel Output
1.0mm2
B+ is supplied by 3 points, rated 1A.
5
Crank Output
1.0mm2
B+ is supplied by 3 points, rated 1A.
6
Remote Start Input
1.0mm2
Ground connected is active (B-)
7
Aux. Input
1.0mm2
Ground connected is active (B-) if it is configured as
switch input value.
Connect to low fuel level switch value or fuel level
resistor type sensor.
8
Oil Pressure Input
1.0mm2
Connect to low oil pressure switch value or resistor
type sensor.
9
Engine Temp. Input
1.0mm2
Connect to high water/cylinder temp. switch value or
temperature resistor type sensor.
10
Magnetic Pickup
0.5mm2
Connect to speed sensor, and shielded wire is
recommended.
The other end of speed sensor is connected to B-.
11
Gen Volt Monitoring
Input
1.0mm2
Connect to generator voltage output port.
(2A fuse is recommended)
12
1.0mm2
6. CONTROLLER BACK PANEL
Terminals description as follows,
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 13 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Function
Cable Size
Remarks
13
Load Current(Inlet
Loop)
1.5 mm2
Connect to secondary coil of current
transformer.(Rated 5A)
14
Load Current(Outlet
Loop)
1.5 mm2
15
Idle Output
1.0 mm2
B+ is supplied by 2points, rated 1A, and connected to
idle relay.
16
Stop Output
1.0 mm2
B+ is supplied by 2points, rated 1A, and connected to
stop electromagnet.
17
Aux. Output
1.0 mm2
B+ is supplied by 2points, rated 1A.
Remark: Type-B USB port, which can be connected with PC software, is apply for parameter configuration
and data monitoring.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 14 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Parameter
Range
Default
Value
Description
P00
Start Delay
(0-3600)s
1
Time from remote start signal is active to
start genset.
P01
Stop Delay
(0-3600)s
1
Time from remote start signal is
deactivated to genset stop.
P02
Start Attempts
(1-10) times
3
The maximum number of crank attempts.
If none of them is successful, the
controller will initiate fail to start alarm.
P03
Preheat Time
(0-300)s
0
Time of pre-powering heat plug before
starter is powered up.
P04
Cranking Time
(3-60)s
8
The time of powering up the starter for
every crank attempt
P05
Crank Rest
Time
(3-60)s
10
The waiting time before second power up
when engine start fail.
P06
Safety On Delay
(1-60)s
10
Alarms for low oil pressure, high
temperature, under speed, under
frequency and under voltage are inactive.
P07
Start Idle Time
(0-3600)s
0
Idle running time of genset when starting.
P08
Warming Up
Time
(0-3600)s
10
Warming time between genset switch on
and normal running.
P09
Cooling Time
(3-3600)s
10
Radiating time before genset stop, after it
unloads.
P10
Stop Idle Time
(0-3600)s
0
Idle running time when genset stop.
P11
ETS Solenoid
Hold
(0-120)s
20
The time of powering up the
electromagnet during stop procedure.
P12
Fail to Stop
Delay
(0-120)s
0
Time between ending of genset idle
delay and stopped when “ETS time” is
set as 0;
Time between ending of ETS hold delay
and stopped when “ETS Hold output
time” is not 0.
P13
Flywheel Teeth
(1-300)
118
Tooth number of the engine is for judging
of crank disconnect conditions and
inspecting of engine speed. See the
installation instructions.
P14
Generator Poles
(2-16)
4
Configuring numbers of generator poles.
P15
Generator
(0-20.0)s
10.0
Alarm delay for generator over and under
7. PARAMETER RANGE AND DEFINITION
7.1 PARAMETERS CONFIGURATION (TABLE 1)
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 15 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Parameter
Range
Default
Value
Description
Abnormal Time
voltage states.
P16
Generator Over
Voltage
(30-1000)V
264
When generator voltage exceeds this
value and stays so for the time of
„Generator Abnormal Time‟, it is regarded
as over voltage and Generator Over
Voltage shutdown alarm is initiated. If the
voltage value is 1000V, over voltage
signal is not initiated.
P17
Generator
Under Voltage
(30-1000)V
196
When detected voltage falls below this
value and stays so for the time of
„generator abnormal state delay‟, it is
regarded as under voltage and Generator
Under Voltage shutdown alarm is
initiated. If the voltage value is 30V,
under voltage signal is not initiated.
P18
Engine Under
Speed
(0-6000)RPM
1200
When engine speed falls below this value
and stays so for 10 seconds, this is
regarded as under speed and under
speed alarm shutdown signal is sent.
P19
Engine Over
Speed
(0-6000)RPM
1710
When engine speed exceeds this value
and stays so for 2 seconds, this is
regarded as over speed and over speed
alarm shutdown signal is sent.
P20
Under
Frequency
(0-75.0)Hz
45.0
When generator frequency falls below
this value and stays so for 10 seconds, it
is regarded as under frequency and
under frequency alarm shutdown is
initiated.
P21
Over Frequency
(0-75.0)Hz
57.0
When generator frequency exceeds this
value and stays so for 2 seconds, it is
regarded as an over frequency and over
frequency alarm shutdown is initiated.
P22
High
Temperature
(80-140)ºC
98
When the temperature value of the
external temperature sensor exceeds this
threshold, high temperature signal is
sent. Detection starts after safety delay
and only concerns external temperature
sensor which connected to the
temperature sensor input port. If the set
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 16 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Parameter
Range
Default
Value
Description
value is 140, high temperature signal will
not be sent (this only concerns
temperature sensor, not high
temperature signal via config. input port).
P23
Low Oil
Pressure
(0-400)kPa
103
When the external pressure sensor value
falls below this threshold, low oil pressure
delay begins. Detection begins after
safely on delay. If the set value is 0, low
oil pressure signal is not sent (this only
concerns pressure sensor and does not
concern low oil pressure warning signal
via configurable input port)
P24
Low Liquid
Level
(0-100)%
10
When the liquid level of the external
sensor falls below this value and stays so
for 10 seconds, low liquid level signal is
sent and warning without shutdown is
initiated.
P25
Battery Over
Volts
(12-40)V
33.0
When battery voltage exceeds this value
and stays so for 20 seconds, Battery
Over Volts signal is sent and warning
without shutdown is initiated.
P26
Battery Under
Volts
(4-30)V
8.0
When battery voltage falls below this
value and stays so for 20 seconds,
Battery Under Volts signal is sent and
warning without shutdown is initiated.
P27
CT Ratio
(5-6000)/5
500
Current transformer ratio default as
500:5.
P28
Full-load
Current
(5-1900)A
500
It is the rated current of generator, which
is apply for calculating over current with
load.
P29
Over Current
Percentage
(50-130)
120
Over current delay starts when current
with load is greater than value of full-load
current multiply over current percentage.
P30
Over Current
Delay
(0-3600)s
60
When current with load exceeds preset
value and stays so over delay time, over
current alarm will be initiated.
P31
Action
(0-2)
0
0: Warn 1: Shutdown 2:Cooling and
Shutdown
P32
Relay Output
(0-9)
1
Default: Common Alarm
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 17 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Parameter
Range
Default
Value
Description
P33
Digital Input
(0-8)
4
Default: Auxiliary shutdown; if the set
value is 8, fuel level sensor type can be
selected.
P34
Digital Input
Delay
(0-20.0)s
2.0
Active delay time for digital input ports
P35
Power On Mode
(0-2)
0
0: Shutdown 1: Auto 2:Manual
P36
Password Set
(0-9999)
0318
P37
Crank
Disconnect
Condition
(0-6)
See table 5.
1
Starter motor disconnection condition.
There are 3 conditions of disconnecting
starter with engine (magnetic pickup,
generator frequency and oil pressure).
Aiming at to separate the start motor and
genset as soon as possible.
P38
Disconnect
Engine Speed
(0-3000) RPM
360
When generator speed is higher than the
set value, starter will be disconnected.
P39
Disconnect
Generator Freq
(10.0-30.0) Hz
14.0
When generator frequency higher than
the set value, starter will be
disconnected.
P40
Disconnect Oil
Pressure
(0-400) kPa
200
When generator oil pressure higher than
the set value, starter will be disconnected
and oil engine crank successfully.
P41
AC System
(0-3)
2
0：3P4W 1：2P3W
2：1P2W 3：3P3W
It is used for calculating generator
voltage and active power.
P42
Temperature
Sensor
(0-10)
06
SGD (120ºC resistor type)
P43
Oil Pressure
Sensor
(0-10)
06
SGD (10Bar resistor type)
P44
Fuel Level
Sensor
(0-7)
0
Not used. (If fuel level sensor is used,
then the digital input port must be set as
„not used‟.
P45
Disconnect Oil
Pressure Delay
(0-20.0)s
0.0s
When crank disconnect condition
including oil pressure, and engine oil
pressure and delay value are higher than
set values, starter will be disconnected
and oil engine crank successfully.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 18 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Items
Description
0
Not Used
Output is not active.
1
Common
Alarm
Includes all shutdown alarms and warning alarms. Warning alarms are not
self-latching, while shutdown alarms are and will not disappear until they
are reset.
2
Energized to
Stop
Suitable for the genset with stop electromagnet. The electromagnet closes
when stop idle is over. And opens when EST delay is over.
3
Idle Control
Used for machines that have idle mode. Closes during cranking,
disconnects during warming up, closes during stop idle delay, disconnects
after complete stop.
4
Preheat
Control
It closes before starting and opens before starter is power on.
5
Closing Gens
During normal operation of the generator, closes the breaker.
6
High Speed
Output
Output when enter high speed warning up and off after high speed cooling.
7
Reserved
8 Reserved
9
Reserved
No.
Description
Notes
0
Not Used
1
High Temperature Input
If these signals are activated after crank disconnect,
shutdown alarm will be immediately initiated.
2
Low OP Warning Input
3
Reserved
Only warning and not stops if this input is active.
4
Auxiliary Shutdown
Shutdown alarm will be immediately initiated if this input is
active.
5
High Temperature cooling &
Stop Input
When the gen-set is working normally and this signal is
activated, if there is a high temperature situation, the
controller will first cool down the generator and then stop it;
if the signal is deactivated and a high temperature situation
occurs, the controller will shut down the gen-set without
cooling down.
6
Reserved
7 Reserved
8 Multiplex Level Sensor
Parameter P44”Fuel Level Sensor” Input is active.
7.2 DEFINITION OF RELAY OUTPUTS (TABLE 2)
7.3 DEFINITION OF DIGITAL INPUTS (ACTIVE WHEN CONNECT TO GND (B-)) (TABLE 3)
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 19 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No.
Items
Content
Remark
1
Temperature
Sensor
0 Not used
1 Low digital input is active
2 High digital input is active
3 User defined resistor type
4 VDO
5 SGH (yellow river sensor)
6 SGD (Dongkang sensor )
7 CURTIS
8 DATCON
9 VOLVO-EC
10 SGX 120 DEGREE
Digital input is switch value signal; low
or high electrical level can be selected
to be active, connecting to earth point
will mean that low electrical level is
selected, hang in air means high
electrical level is selected; cannot be
connected to power supply positive.
The range of user-defined resistor type
sensor is 0-6000 Ohm, by default SGD
sensor is selected.
2
Oil Pressure
Sensor
0 Not used
1 Low digital input is active
2 High digital input is active
3 User defined resistor type
4 VDO 10Bar
5 SGH (yellow river sensor)
6 SGD(Dongkang sensor )
7 CURTIS
8 DATCON 10Bar
9 VOLVO-EC
10 SGX 10Bar
Digital input is switch value signal; low
or high electrical level can be selected
to be active, connecting to earth point
will mean that low electrical level is
selected, hang in air means high
electrical level is selected; cannot be
connected to power supply positive.
The range of user-defined resistor type
sensor is 0-6000 Ohm, by default SGD
sensor is selected.
3
Fuel Level
Sensor
0 Not used
1 Low digital input is active
2 High digital input is active
3 User defined resistor type
4 SGH (yellow river sensor)
5 SGD (Dongkang sensor )
6 Reserved 1
7 Reserved 2
Digital closed and Digital open both are
digital signal; low or high electrical level
can be selected to be active,
connecting to earth point will mean that
low electrical level is selected, hang in
air means high electrical level is
selected; cannot be connected to power
supply positive.
The range of user-defined resistor type
sensor is 0-6000 Ohm, by default “Not
used” is selected
Before selecting fuel level sensor type,
digital input type must be set as 8.
7.4 SENSOR SELECTION (TABLE 4)
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 20 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
No
Content
0
Speed
1
Generator Frequency
2
Speed + Generator Frequency
3
Speed + Oil pressure
4
Generator Frequency + Oil pressure
5
Generator Frequency + Speed+ Oil pressure
6
Oil pressure
7.5 CONDITIONS OF CRANK DISCONNECT (TABLE 5)
1) There are 3 conditions to make starter separate with engine; Speed, generator frequency and oil
pressure can be used separately while oil pressure is recommended to use together with speed
and generator frequency. The aim is to disconnect the starter motor as soon as possible.
2) Speed sensor is the magnetic equipment which be installed in starter for detecting flywheel teeth.
3) When set as speed, must ensure that the number of flywheel teeth is as same as setting,
otherwise, “over speed shutdown” or “under speed shutdown” may be caused.
4) If genset without speed sensor please don‟t select corresponding items, otherwise, “start fail” or
“loss speed signal” maybe caused.
5) If genset without oil pressure sensor, please don‟t select corresponding items.
6) If not select generator frequency in crank disconnect setting, controller will not collect and display
the relative power quantity (can be used in water pump set); if not select speed in crank
disconnect setting, the rotating speed displayed in controller is calculated by generator signal.
8. CONTROLLER FUNCTION SETTING
8.1. PARAMETER SETTING
Hold and press for 2s to enter into password interface, and the fist digit is blinking as follows,
1) Press button to increase the value of the blinking digit and to decrease the value;
when the first digit is set, press to move the cursor;
2) Repeat the same procedure to set the digits from 2nd to 4th;
3) If the password is right, enter into the parameter configuration interface (as shown below)
which including the serial number of the set items and their parameters; press to scroll
down and to scroll up;
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 21 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
4) Press to set the current item, and when the first digit starts blinking, use the same way
that is used for password to enter the set value.
Attention:
a) Please change the controller parameters when generator is in standby mode only (e. g. Crank
disconnect conditions selection, configurable input, configurable output, various delay),
otherwise, shutdown and other abnormal conditions may happen.
b) Serial number of parameters please reference Table1
c) The value of each parameter can be set only within a certain range.
d) Over voltage set value must be higher than under voltage set value, otherwise over voltage and
under voltage condition may occur simultaneously.
e) Over speed set value must be higher than under speed set value, otherwise over speed and
under speed condition may occur simultaneously.
f) Please set the generator frequency value as low as possible when cranking, in order to make
the starter be separated quickly as soon as crank disconnect.
g) Before selecting fuel level sensor type, it is necessary to set a configurable input port type as 8.
h) At any time press can stop current parameter setting immediately.
8.2. LCD CONTAST ADJUSTMENT
When genset is in standby status, simultaneously hold and press and keys for 2s to
enter into LCD contrast adjustment interface, and LCD contrast increases one level every 1s
without releasing buttons. There are 6 levels to select as requirement.
8.3. GENERATOR FLYWHEEL TEETH AUTOMATIC ADJUSTMENT
In manual mode, if crank disconnect conditions select as “2 Speed + Generator Frequency” or
Speed + Generator Frequency + Oil Pressure” (generator frequency and speed are not 0),
controller will automatic adjustment generator flywheel teeth based on gen frequency and poles
when simultaneous press and keys.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 22 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
N/m2
Pa
kgf/cm2
bar
psi
1Pa 1 1.02x10
－
5
1x10
－
5
1.45x10
－
4
1kgf/cm2
9.8x104
1
0.98
14.2
1bar
1x105
1.02
1
14.5
1psi
6.89x103
7.03x10
－
2
6.89x10
－
2
1
9. SENSOR SETTINGS CLARIFICATION
a) Sensors are connected to the controller are all resistor type. Parts of build-in standard sensor
curves in the controller can be selected by users via PC software.(details please to see
Table4)
b) When input the sensor curve, X value (resistor) must be input from small to large, otherwise,
mistake occurs.
c) If select sensor type is set as “not used”, sensor curve is not working and LCD display “---”.
d) If there is only has low oil pressure alarm switch only and without oil pressure sensor,
pressure sensor can be set as “low digital input is active” or “high digital input is active”.
e) The headmost or backmost values in the vertical coordinates can be set as same as below,
Normal Pressure Unit Conversion Table
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 23 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
10. COMMISSIONING
Please make sure the following checks are made before commissioning,
1) Ensure all the connections are correct and wires diameter is suitable.
2) Ensure that the controller DC power has fuse, controller‟s positive and negative connected to
start battery are correct.
3) Take proper action to prevent engine to crank success (e. g. Remove the connection wire of fuel
valve). If checking is OK, make the start battery power on; choose manual mode and controller
will executive routine.
4) Set controller under manual mode, press “start” button, genset will start. After the cranking times
as setting, controller will send signal of Start Failure; then press “stop” to reset controller.
5) Recover the action to prevent engine to crank success (e. g. Connect wire of fuel valve), press
start button again, genset will start. If everything goes well, genset will normal running after idle
running (if idle run be set). During this time, please watch for engine‟s running situations and AC
generator‟s voltage and frequency. If abnormal, stop genset and check all wires connection
according to this manual.
6) Any other questions please contact with SmartGen service personnel.
11. TYPICAL APPLICATION
Caution: Start and fuel output ports should be select large capacity relays.
Caution: When sensor port configured as “high digital input is active”, hang in air means high
electrical level is selected; cannot be connected to power supply positive.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 24 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
12. INSTALLATION
12.1.FIXING CLIPS
1) Controller is panel built-in design; it is fixed by clips when installed.
2) Withdraw the fixing clip screw (turn anticlockwise) until it reaches proper position.
3) Pull the fixing clip backwards (towards the back of the module) ensuring two clips are inside
their allotted slots.
4) Turn the fixing clip screws clockwise until they are fixed on the panel.
Note: Care should be taken not to over tighten the screws of fixing clips.
12.2.OVERALL DIMENSION
Overall and cutout dimensions as follows,
BATTERY VOLTAGE INPUT
HGM1790N series controller can suit for widely range of battery voltage DC(8~35)V. Negative of
battery must be connected with the engine shell. Diameter of wire that connects from power supply to
battery must be over 1.5mm2. If floating charge configured, please firstly connect output wires of
charger to battery‟s positive and negative directly, then, connect wires from battery‟s positive and
negative to controller‟s positive and negative input ports in order to prevent charge disturbing the
controller‟s normal working.
SPEED SENSOR INPUT
Speed sensor is the magnetic equipment which be installed in starter and for detecting flywheel
teeth. Its connection wires to controller should apply for 2 cores shielding line. The shielding layer
should connect to No. 1 terminal in controller while another side is hanging in air. The else two signal
wires are connected to No.1 and No.10 terminals in controller. The output voltage of speed sensor
should be within AC(1~24)V (effective value) during the full speed. AC12V is recommended (in rated
speed). When install the speed sensor, let the sensor is spun to contacting flywheel first, then, port
out 1/3 lap, and lock the nuts of sensor at last.
OUTPUT AND EXPAND RELAYS
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 25 of 27
HGM1790N GENSET CONTROLLER USER MANUAL
All outputs of controller are relay contact output type. If need to expand the relays, please add
freewheel diode to both ends of expand relay‟s coils (when coils of relay has DC current) or, increase
resistance-capacitance return circuit (when coils of relay has AC current), in order to prevent
disturbance to controller or others equipment.
AC INPUT
Current input of controller must be connected to outside current transformer. And the current
transformer‟s secondary side current must be 5A. At the same time, the phases of current
transformer and input voltage must correct. Otherwise, the current of collecting and active power
maybe not correct.
NOTE: When there is load current, transformer’s secondary side prohibit open circuit.
WITHSTAND VOLTAGE TEST
When controller had been installed in control panel, if need the high voltage test, please disconnect
controller‟s all terminal connections, in order to prevent high voltage into controller and damage it.
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 26 of 27
13. 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.
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.
HGM1790N GENSET CONTROLLER USER MANUAL
HGM1790N Genset Controller 2016-10-11 Version1.0 Page 27 of 27
Loading...