Smartgen GENSET CONTROLLER MGC310 User manual

MGC310/MGC320
GENSET CONTROLLER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO., LTD.

MGC300 Series Genset Controller User Manual Page 2 of 26
Chinese trademark
English trademark
SmartGen — make your generator smart
SmartGen Technology Co., Ltd.
No.28 Jinsuo Road, Zhengzhou, Henan Province, China
Tel: [phone]
[phone] (overseas)
Fax: [phone]
Web: www.smartgen.com.cn/ www.smartgen.cn/
Email: [e-mail]
All rights reserved. No part of this publication may be reproduced in any material form (including
photocopying or storing inany medium by electronic means or other)withoutthe 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.
Table 1 Software Version
Date Version Content
2019-10-15 1.0 Original release.
2020-01-04 1.1 Fixed application diagram.
2020-08-18 1.2 1. Fixed typical application diagram terminal 17-20 to R,S, T, N1;
2. Added note 1 of remote start.
2020-12-12 1.3 1. Added description of remote start input port/power port;
2. Modified generator poles description.

MGC300 Series Genset Controller User Manual Page 3 of 26
CONTENT
1 OVERVIEW............................................................................................................................................. 4
2 PERFORMANCE AND CHARACTERISTICS ........................................................................................ 5
3 SPECIFICATION..................................................................................................................................... 6
4 OPERATION............................................................................................................................................ 7
4.1 FRONT PANEL DESCRIPTION....................................................................................................... 7
4.2 KEYS FUNCTION DESCRIPTION................................................................................................... 8
4.3 LCD ICONS DESCRIPTION ............................................................................................................ 9
4.4 DISPLAY DESCRIPTION............................................................................................................... 10
4.4.1 LOW POWER CONSUMPTION OPERATION.........................................................................11
4.4.2 INSTRUCTION..........................................................................................................................11
4.4.3 AUTO START SEQUENCE.......................................................................................................11
4.4.4 AUTO STOP SEQUENCE ....................................................................................................... 12
4.4.5 MANUAL START/STOP OPERATION..................................................................................... 12
5 PROTECTION....................................................................................................................................... 13
6 CONNECTION...................................................................................................................................... 14
7 DEFINITION AND RANGE OF PARAMETERS.................................................................................... 16
7.1 PARAMETER SETTING CONTENTS AND RANGE ..................................................................... 16
7.2 DEFINABLE CONTENTS OF OUTPUT PORTS........................................................................... 19
7.3 DEFINABLE CONTENTS OF INPUT PORTS ............................................................................... 19
7.4 SENSOR SELECTION................................................................................................................... 20
8 CONTROLLER PARAMETER SETTINGS........................................................................................... 21
9 SENSOR SETTING............................................................................................................................... 22
10 COMMISSIONING .............................................................................................................................. 23
11 TYPICALAPPLICATION ..................................................................................................................... 24
12 INSTALLATION ................................................................................................................................... 25
12.1 FIXING CLIPS .............................................................................................................................. 25
12.2 OVERALLAND CUTOUT DIMENSIONS..................................................................................... 25
13 FAULT FINDING.................................................................................................................................. 26

MGC300 Series Genset Controller User Manual Page 4 of 26
1OVERVIEW
MGC300 Series Genset Controller is applicable for single unit automation control to realize auto
start of single unit and AMF. The controller integrates digitalization with intelligence and applies LCD
graphic display, which is simple for operation and reliable for running.
MGC300 Series Genset Controller applies 32-bit micro-processor technology, realizing precise
measuring for various parameters, set-value adjustment, timing, and threshold setting functions etc. A
majority of parameters can be adjusted from the front panel, and all parameters can be configured by
RS485 port via PC. It has compact structure, simple wiring, high reliability, which can be used for all
types of genset automation system.
MGC300 Series Genset Controller includes true low power consumption (power off) and feign low
power consumption (awakened, but screen light not on, only stop indicator flashing, not do any action).

MGC300 Series Genset Controller User Manual Page 5 of 26
2PERFORMANCE AND CHARACTERISTICS
— Graphic LCD display (backlight), LED indicators, push-button operation;
— Acrylic material for hard screen protection;
— Wide power supply range DC (8~35)V, which can suits different environments of starting
battery voltages;
— Collect and display mains/gen 3-phase voltage, 3-phase current, frequency, and power
parameters;
Mains Gen
Line voltage (L12, L23, L31) Line voltage (L12, L23, L31)
Phase voltage (L1, L2, L3) Phase voltage (L1, L2, L3)
Frequency (Hz) Frequency (Hz)
Load
Current (Ia, Ib, Ic) Unit: A
Total active power P Unit: kW
— Mains has over volt, under volt, over frequency, under frequency, and loss of phase functions;
Gen has over volt, under volt, over frequency, under frequency, over current, over power, and
loss of phase functions;
— Precisely collect all parameter values of engines:
Temperature °C Fuel level %
Battery voltage V Accumulated running time H (max. 9999 hours)
Speed RPM Accumulated start times (max. 90000000 times, display only on PC software)
— Genset fault protection and display function;
— Controller has 4 working modes: manual, auto, stop, and test mode, and MGC310 has stop,
manual, auto modes, and MGC320 has manual, auto, stop, and test mode;
— Parameter setting function: allows users to change and set the parameters, which won't be lost
in case of system power off; a majority of parameters can be adjusted from front panel, and all
parameters can be configured by RS485 via PC;
— 1 digital input port, 2 fixed input ports;
— 2 fixed relay output ports (fuel output, starting output);
— 2 digital relay output ports;
— All parameters are adjusted digitally, improving the whole reliability and stability;
— Sealing gasket is designed between the enclosure and the control panel, whose dustproof and
waterproof performance can be reached to IP65;
— Metal fixing clips are used to stable the controller;
— Modular structure design, pluggable wiring terminal, and built-in installation, make it compact in
structure and easy to install.

MGC300 Series Genset Controller User Manual Page 6 of 26
3SPECIFICATION
Table 2 Technical Parameters
Items Contents
Working Voltage DC (8.0~35.0)V continous power supply
Overall Consumption ≤1.4W (Standby mode: ≤0.35W, 0W=low power consumption)
AC Volt Input:
3 phase 4 wire
3 phase 3 wire
Single phase 2 wire
2 phase 3 wire
30V AC ~ 360V AC (ph-N)
30V AC ~ 620V AC (ph-ph)
15V AC ~ 360V AC (ph-N)
15V AC ~ 360V AC (ph-N)
Alternator Frequency 50Hz/60Hz
Crank Relay Output 7A 24V DC power supply
Fuel Relay Output 7A 24V DC power supply
Digital Relay Output Port 1 7A 250V AC volt free output
Digital Relay Output Port 2 7A 250V AC volt free output
Overall Dimensions 126mm x 106mm x 46.5mm
Panel Cutout 111mm x 91mm
CT Secondary Current Rated: 62.5mA
Working Condition Temperature:(-25~+70)°C Humidity:(20~93)% RH
Storage Condition Temperature: (-30~+80)°C
Protection Level Front panel IP65
Insulation Intensity Apply AC2.2kV voltage between high voltage te
rminal and low
voltage terminal and the leakage current is not more than 3mA within
1min.
Weight 0.27kg

MGC300 Series Genset Controller User Manual Page 7 of 26
4OPERATION
4.1 FRONT PANEL DESCRIPTION
Fig. 1 MGC310 Panel Indication
Fig. 2 MGC320 Panel Indication

MGC300 Series Genset Controller User Manual Page 8 of 26
4.2 KEYS FUNCTION DESCRIPTION
Table 3 Keys Description
Icons Function Description
Stop/On
Stop the running genset both in manual mode and in auto mode;
In alarm status, press this button to reset any shutdown alarms;
In stop mode, press this button and Up to test if LCD icons and LED
indicators are OK;
In stop mode, press this button and Down to set backlight always on;
In stop process, re-press this button to stop generator immediately;
In parameter setting process, press this button to exit the setting quckly;
In stop status, press this button to start;
In start status, press longer for 3s and release to stop;
Auto Press this key
and controller enters to Auto mode; under this mode,
genset can be controlled by remote start input signals;
Start Press this key and genset will start;
Down/Decrease LCD page scroll;
In parameter settings, decrease the value where
the cursor is;
Press the two keys
simultaneously to enter
parameter settings
page;
Up/Increase LCD page scroll;
In parameter settings, increase the value where
the cursor is;
Manual/Confirm
Confirm key for parameter settings page;
Manual key for other pages and
press it to make controller in Manual
mode;
This key is especially for MGC310;
Test/Confirm Confirm key for parameter settings page;
Test key for other pages and press it to make controller commissoning;
This key is especially for MGC320.

MGC300 Series Genset Controller User Manual Page 9 of 26
4.3 LCD ICONS DESCRIPTION
Table 4 LCD Icons
Icon Definition Icon Definition
Gen power indication Fuel level sensor indication
Mains power indication AC phase voltage indication
Start countdown (crank disconnect is
satisfied) L12 AC line voltage indication
Over frequency alarm Battery voltage indication
Under frequency alarm Load current unit
Temp high alarm Accumulated running time unit
Fuel level low Frequency unit
Outside input alarm Temperature unit
Engine oil pressure low alarm Speed unit (r/min)
Crank failure Active power unit
Stop failure Voltage unit
Battery voltage abnormal Percentage
Gen voltage high I# Mains Close
Gen voltage low II# Gen Close
Load over current

MGC300 Series Genset Controller User Manual Page 10 of 26
4.4 DISPLAY DESCRIPTION
Mains: Phase Voltage L1, Frequency F Mains: Phase Voltage L2, Frequency F
Mains: Phase Voltage L3, Frequency F Gen: Phase Voltage L1, Curent IA
Gen: Phase Voltage L2, Current IB Gen: Phase Voltage L3, Current IC
Mains: Line Voltage L12, Frequency F Mains: Line Voltage L23, Frequency F
Mains: Line Voltage L31, Frequency F Gen: Line Voltage L12, Frequency F
Gen: Line Voltage L23, Frequency F Gen: Line Voltage L31, Frequency F
Battery Voltage, Speed Fuel Level, Temp.
Active Power, Accumulated Running Time
NOTE1: When temp. and fuel level sensor are not displayed, it means they are not used; when OFF is
displayed, it means that sensor is open.

MGC300 Series Genset Controller User Manual Page 11 of 26
4.4.1 LOW POWER CONSUMPTION OPERATION
Controller applies low power consumption method at hardware aspect, which reduces the power
consumption greatly in the period of stop. With this battery cost is larged decreased, because it reduces
the battary change times.
Controller has true low consumption (power off) and feign low consumption (awakened, LCD light
not on, only stop indicator flashing, not do any action).
a) Power on the controller, and controller is running as normal;
b) After power on, press and controller enters normal running, if is not pressed,
controller will judge the status according to the last stop situation; If controller is stopped
manually, it will enter true low consumption as remote start signal is inactive; if it is active,
controller enters feign low consumption; Otherwise, controller will run normally;
c) In standby status, Press for 3s and controller will be powered off.
NOTE 1: When low consumption time is set to 0, controller will not enter it automatically (base pin of
control power is always energized).
NOTE 2: When low consumtion time is not set to 0, if genset is in the standby mode and doesn't have data
communication, controller will enter low consumtion based on the set low consumption time.
4.4.2 INSTRUCTION
Press and the indicator beside will be on, which means genset is in the auto mode.
4.4.3 AUTO START SEQUENCE
a) When remote start signal is active (Terminal No. 6 connects B-), “Start Delay” time is initiated;
b) When start delay is over, preheat relay outputs (if configured), “Preheat Delay” is initiated;
c) After the above delay, the fuel relay outputs, and one second later, the crank relay outputs;
During the crank time if the genset fails to start, fuel relay and crank relay stop outputting, enter
“Crank Rest Time” and wait for next crank;
d) If the genset fails to start during the set crank attempts, LCD displays and it means crank
failure alarm and meanwhile alarm indicator flashes;
e) If the genset starts successfully during the crank attempts, it enters “Safety On” time, during
which low oil pressure, high water temperature alarms are inactive; After “Safety On” delay, it
enters “Start Idle Delay” (if configured);
f) During “Start Idle Delay”, under speed, under frequency and under voltage alarms are all
inactive; When this delay is over, “High-speed Warming Up Delay” is initiated (if configured);
g) After the above delay, genset will enter into normal running status. If genset voltage or
frequency is abnormal, controller will issue shutdown alarm and stop the genset.
NOTE 1: MGC310 does not have this function.

MGC300 Series Genset Controller User Manual Page 12 of 26
4.4.4 AUTO STOP SEQUENCE
a) When remote start input is invalid, “Stop Delay” time is initiated;
b) Once this “Stop Delay” has expired, the “High-speed Cooling Delay” is initiated;
c) When “Stop Idle Delay” (if configured) starts, idle speed relay is energized and outputs;
d) When “ETS Solenoid Hold” begins, ETS relay is energized and fuel relay is de-energized;
e) When controller enters "Wait for Stop" time, it will judge whether genset has stopped
completely;
f) After complete stop, controller will enter standby status; if genset cannot stop controller, it will
issue alarm (LCD displays ).
NOTE 1: Press stop key in auto start status, genset will stop and enter into stop mode simultaneously.
NOTE 2: In the process of crank rest time, when fuel output is disconnected and crank rest countdown is
less than 7s, preheat and ETS stop output; after crank rest time, ETS stop output is disconnected and fuel
outputs; preheat output is stopped before crank.
4.4.5 MANUAL START/STOP OPERATION
Manual Start: press to start genset (Please refer to start procedure b~g of AUTO START
SEQUENCE). If water temperature high and abnormal voltage occur during the running process,
controller shall protect it to stop quickly.
Manual Stop: press to stop the running genset (Please refer to stop procedure b~f of AUTO
STOP SEQUENCE).

MGC300 Series Genset Controller User Manual Page 13 of 26
5PROTECTION
Table 5 Alarm Types
Icons Alarm Contents Type Trigger Condition
Over Frequency Shutdown Gen frequency is above over frequency limit for 2s, it
alarms;
Under Frequency Shutdown Detected when genset is running normally; gen freq. is
less than under frequency limit for 10s, and it alarms;
Temp. High Shutdown
Detected after safety on delay; when temp. high is
above high temp. limit for 3s, it alarms;
Temp. High Input Shutdown Detected after safety on delay; when temp. high input
is active, it alarms;
Oil Pressure Low Input Shutdown Detected after safety on delay; when oil pressure low
input is active, it alarms;
Gen Over Current Warning Action is set as Warning; gen current is over pre-set
value, and lasting time is over delay time, it alarms;
Gen Over Current Shutdown Action is set as Shutdown; gen current is over pre-set
value, and lasting time is over delay time, it alarms;
Gen Over Current
Cooling Shutdown Action is set as Cooling Shutdown; gen current is over
pre-set value and lasting time is over delay time, it
alarms;
Gen Voltage High Shutdown Detected after safety on delay; gen voltage is over the
threshold, and lasting time is over delay, and it alarms;
Gen Voltage Low Shutdown Detected after genset normal running; gen voltage is
lower than threshold, and lasting time is over delay
time, and it alarms;
Crank Failure Shutdown It alarms when crank failure during the pre-set crank
attempts;
Outside Shutdown
Alarm Input Shutdown When the input port is configured as "Outside
Shutdown Alarm Input", and it is active, it alarms;
Fuel Level Low Warning When fuel level is lower than the threshold for 10s, it
alarms;
Fuel Level Low Input Warning When fuel level low input is active, it alarms;
Stop Failure Warning Complete stop time is over but genset still not stops
completely and it alarms;
Battery Voltage Low Warning Battery voltage is lower than the threshold for 20s, it
alarms;
Battery Voltage High Warning Battery voltage is higher than the threshold for 20s, it
alarms.
NOTE 1: Shutdown alarms are latched signals and alarms can be removed by using Stop key (in stop
status); warning alarms are not latched.

MGC300 Series Genset Controller User Manual Page 14 of 26
6CONNECTION
Fig. 3 Controller Back Panel

MGC300 Series Genset Controller User Manual Page 15 of 26
Table 6 Terminal Connection Description
No. Function Cable Size Note
1 B- 1.5mm Connected with negative of starting battery
2
2 B+ 1.5mm Connected with positive of starting battery
2
3 Fuel Relay Output 1.0mm B+ power is supplied by terminal 2, rated 7A
2
4 Crank Relay Output 1.0mm B+ power is supplied by terminal 2, rated 7A
2
5 Digital Input 1.0mm Digital input, grounded active (B-); Fuel level sensor; connected with level low digital
signal or level resistance sensor.
2
6 Remote Start Input
Port/Power Port 1.0mm
Grounded active (B-)
2
1.
For MGC320, when mains failure and mains
detection is active, this port is active; MGC310
is always active;
2. This port is power port, when it is disconnected,
controller will power off.
7 Oil Pressure Input 1.0mm Connected with digital signals of oil pressure low
2
8 Fuel Level Sensor Input 1.0mm Fuel level sensor input
2
9 Temp. Sensor Input 1.0mm Connected with water/cy
linder digital signals or
temp. resistance sensor
2
10 RS485- 1.0mm
2
11 RS485+ 1.0mm
2
12 Digital Output 1 1.0mm Relay N/O connector, volt free output, rated 7A
2
13
14 Digital Output 2 1.0mm N/C output, rated 7A
215 Relay COM
16 N/O output, rated 7A
17 Mains R Voltage 1.0mm Connected to Mains R Phase
2
18 Mains S Voltage 1.0mm Connected to Mains S Phase
2
19 Mains T Voltage 1.0mm Connected to Mains T Phase
2
20 Mains N1 Input 1.0mm Connected to Mains N1 wire
2
21 Gens U Voltage 1.0mm Connected to genset output U Phase
2
22 Gens V Voltage 1.0mm Connected to genset output V Phase
2
23 Gens W Voltage 1.0mm Connected to genset output W Phase
2
24 Gens N2 Input 1.0mm Connected to genset output N2 wire
2
25 CT COM 1.0mm
2
26 CT IC 1.0mm
Outside connected with CT secondary coil (rated
62.5mA)
2
27 AT IB 1.0mm
Outside connected with CT secondary coil (rated
62.5mA)
2
28 CT IA 1.0mm Outside connected with CT secondary coil (rated
62.5mA)
2

MGC300 Series Genset Controller User Manual Page 16 of 26
7DEFINITION AND RANGE OF PARAMETERS
7.1 PARAMETER SETTING CONTENTS AND RANGE
Table 7 Parameter Setting Contents and Range
No. Items Range Default Description
P00 Mains Normal Delay (0~3600)s 10 Confirm t
ime duration for Mains voltage
from abnormal to normal or from normal to
abnormal to be used forATS transfer.
P01
Mains Abnormal
Delay (0~3600)s 5
P02 Mai
ns Under Volt
Threshold (30~6000)V 184
If the voltage sample is lower than it, mains
under voltage is considered; When it is set
30V, under voltage signal shall not be
detected; return difference is 10V.
P03
Mains Over Volt
Threshold (30~6000)V 276
If the voltage sample is higher than it,
mains over voltage is considered; When it
is set 6000V, over voltage signal shall not
be detected; return difference is 10V.
P04 Mains Options (0~1) 0 0: AMF 1: Display Only
P05 Start Delay (0~3600)s 1 Time duration from
mains abnormal or
remote start signal is active to genset
startup.
P06 Stop Delay (0~3600)s 1 Time duration from mains normal or remote
start signal is deactivated to genset stop.
P07 Crank Attempts (1~10) times 3 It is maximum crank attempts when engine fails to start. When it is reached, controller
shall send out crank failure signal.
P08 Preheat Time (0~300)s 0 Preheating plug pre-
energization time
before starter is powered on.
P09 Cranking Time (3~60)s 8 Time for starter to be energized every time.
P10 Crank Rest Time (3~60)s 10
The waiting time before second power up
when engine start fails.
P11 Safety On Delay (1~60)s 10 Alarms for low oil pressure,
temp. high,
under speed, under frequency and under
voltage, charging failure are deactivated.
P12 Start Idle Delay (0~3600)s 0 Time for genset idle running at starting.
P13 Warming Up Time (0~3600)s 10 Warming-up time before breaker close after
high speed running for genset.
P14 Cooling Time (3~3600)s 10 Radiating time before genset stop after
genset is unloaded.
P15 Stop Idle Delay (0~3600)s 0 Time for genset idle running at stopping;
P16 ETS Solenoid Hold (0~120)s 20 The time for stop electromagnet
to be
energized before genset stop.
P17 Wait for Stop (0~120)s 0 Time from idle delay to complete stop when
ETS stop output is set to 0s
; when the

MGC300 Series Genset Controller User Manual Page 17 of 26
No. Items Range Default Description
output time is not 0s; it's time from ETS
delay over to complete stop.
P18 Generator Poles (2~64) 2 Number of generator poles. It can be used
for speed calculation of engine without
speed sensor.
P19
Gen Abnormal
Delay (0~20.0)s 10.0 Alarm delay for gen under/over voltage.
P20 Gen Over Volt Shut
Threshold (30~6000)V 264
When generator voltage is higher than this
threshold and lasts for the
set gen
abnormal delay, then over voltage is
considered and shutdown
alarm will be
initiated.
(No detection for over volt signals if it is set
as 6000V)
P21 Gen Under Volt Shut
Threshold (30~6000)V 196
When sample
voltage falls below this
threshold and lasts for the set delay, under
voltage is considered and shutdown alarm
shall be initiated.
(No detection for under volt signals if it is
set as 30V)
P22 Level
High to
disable Fuel Pump (0~100)% 80 When fuel level is over the pre-set value for
2s, fuel pump is off.
P23 Level Low to enable
Fuel Pump (0~100)% 25 When fuel level is under the pre-set value
for 2s, fuel pump is on.
P24 Gen
Under Freq
Shut Threshold (0~75.0)Hz 45.0
When generator frequency falls below this
threshold (not 0) and lasts for
the delay
time, then it is considered under frequency
and shutdown alarm signal will be initiated.
P25 Gen Over Freq Shut
Threshold (0~75.0)Hz 57.0
When generator frequency is over than this
threshold and lasts for the delay time, then
it is considered over frequen
cy and
shutdown alarm signal will be initiated.
P26
Under Frequency
Shutdown Delay (0~60)s 10
When generator frequency falls below this
threshold (not 0)
and lasts for the delay
time, then it is considered under frequency
and shutdown alarm signal will be initiated.
P27
Over Frequency
Shutdown Delay (0~60)s 2
When generator frequency is over than this
threshold and lasts for the delay time, then
it is considered over frequen
cy and
shutdown alarm signal will be initiated.
P28 Temp. High Shut
Threshold (80~140)ºC 98
When outside temp. sensor is above this
value, and temp. high signal is issued; it is
detected only after safety on delay and only
for externally connected t
emp. sensor;

MGC300 Series Genset Controller User Manual Page 18 of 26
No. Items Range Default Description
when set value is 140, temp. high signal is
not issued (only for temp. sensor, excluded
the temp. high alarm signal of input port).
P29
Level Low Warning
Value (0~200)% 50 When level is under this value for 10s, level
low warning is issued (only warning, not
stop).
P30 Battery
Over Volt
Warn Threshold (12~40)V 33.0
When battery voltage is higher than this
value for 20s, battery voltage abnormal
signal is issued. (only warning, not stop)
P31 Battery
Under Volt
Warn Threshold (4~30)V 8.0
When battery voltage is lower than this
value for 20s, battery vo
ltage abnormal
signal is issued. (only warning, not stop)
P32 CT Ratio 500A/62.5mA 500 CT ratio for externally connected CT.
P33 Full Load Current (5~6000)A 500 Rated current of genset; used for full load
current calculation.
P34
Over Current
Percentage (50~130)% 120 When load current is higher than this, over
current delay started.
P35 Over Current Delay (0~3600)s 60
DMT over current delay; when load current
is over the pre-set value for pre-set time,
over current is considered; when delay is
0s; it only gives warning, not stop.
P36 Over CurrentAction (0~2) 0 0: Warning 1: Shutdown
2: Cooling Shutdown
P37 Digital Output 1 Set (0~9) 5 See Table 8 for detailed output contents.
P38 Digital Output 2 Set (0~9) 6 See Table 8 for detailed output contents.
P39 Fuel Output Time (1~60)s 1 Fuel output time for genset start.
P40 Module Power On
Mode (0~2) 0 0: Stop Mode
1: Manual Mode
2: Auto Mode
P41 Module Address (1~254) 1 Communication address
P42 Password Set (0~9999) 318 Controller password.
P43 Disconnection
Frequency (0.0~30.0)Hz 14.0
In the starting process when gen frequency
exceeds this value, it is considered that
start is successful
and starter will be
disconnected.
P44 AC System (0~3) 0 0: 3P4W 1: 2P3W
2: 1P2W 3: 3P3W
P45 Temp Sensor Types (0~12) 8 See Table 10 for Temp. sensor type.
P46
Level Sensor
Selection (0~5) 3 See Table 10 for level sensor type.
P47 Input 1 Set (0~8) 4 See Table 9 for input contents.
P48 Digital Input 1 Delay (0~20.0)s 2.0 Digital input acts when input is delaying.
P49 Low Consumption (0~180)s 0 Low power consumption time setting.

MGC300 Series Genset Controller User Manual Page 19 of 26
7.2 DEFINABLE CONTENTS OF OUTPUT PORTS
Table 8 Definable Contents of Output Ports
No. Items Function Description
0 Not Used When this is chosen, output port won’t output.
1 Common Alarm
Includes all shutdown alarms and warnings; when there is only warning
alarm input, alarms are not latched; when shutdown alarms occur, alarms
are latched until they are reset.
2 ETS Control It is used for some gensets with stop electromagnet. Pull-in occurs
when
stop idle ends. Open occurs when “ETS Delay” ends.
3 Idle Speed Control It is used for genset with idling speed. Pull-in occurs when it starts. Open
occurs when it enters high-speed warming up. Pull-
in occurs in the
process of stop idle and open occurs when the genset stops completely.
4 Preheat Control Close before start, open before starter energized.
5 Gen Close Output Generator close outputs when generator is normally running.
6 Mains Close Output Mains close outputs when generator is normally running.
7 High Speed Output Outputs when enters high-speed warming up; disconnects after cooling.
8 Fuel Pump Output Outputs when fuel pump works.
9 Reserved
7.3 DEFINABLE CONTENTS OF INPUT PORTS
Table 9 Definable Contents of Input Ports (All Grounded(B-) Active)
No. Items Remark
0 Not Used
1 Temp. HighAlarm Input After safety on delay is finished, genset shutdown immediately if this
signal is active.
2 Oil Pressure Low Input
3 Reserved
4
Outside Shutdown
Alarm Input If this signal is active, genset will immediately shutdown.
5
Cooling Shutdown for
Temp. High
When this signal is active and genset is running normally, if temp.
high occurs, controller will stop after cooling delay; when this signal
is inactive, if temp. high occurs, controller will stop immediately.
6 Reserved
7 Reserved
8 Reserved

MGC300 Series Genset Controller User Manual Page 20 of 26
7.4 SENSOR SELECTION
Table 10 Sensor Selection
No. Items Contents Remark
1 Temp. Sensor
0: Not Used
1: Customized Resistance Curve
2: VDO
3: SGH
4: SGD
5: CURTIS
6: DATCON
7: VOLVO-EC
8: SGX
9: Digital Low Input Active
10: Digital High Input Active
11: Reserved
12: Reserved
Customized
resistance input
range: 0Ω~6000Ω; Default: SGX
Sensor.
2 Fuel Level Sensor
0: Not Used
1: Customized Resistance Curve
2: SGH
3: SGD
4: Digital Low Input Active
5: Digital High InputActive
Customized
resistance input
range: 0Ω~6000Ω; Default: SGD
Sensor.