Mebay DC20D MK2 Manuel utilisateur
DC20D MK2
GENSET CONTROLLER
USER MANUAL
DC20D MK2 GENSET CONTROLLER USER MANUAL
1
Software Version
No.
Version
Date
Note
1
V1.0
2020-08-01
Original release.
2
V1.1
2019-03-01
1) Optimization of over current inverse time
function.
2) Add over-current fault delay function.
3
V1.2
2020-05-01
Add RS485 communication baud rate and CRC
check bit setting;
4
V1.3
2021-02-01
Name of unified input and output port.
5
V1.4
2021-06-01
Fix known errors in wiring diagram。.
Chongqing MEBAY Technology Co.,Ltd
Add: No6-2,Building 4, Gangan Rd, Jiangbei District, Chongqing.
Tel：+86-23-6869 3061
Fax：+86-23-6765 8207
Web：http://www.mebay.cn
http://www.cqmb.cn
E_mail：[email protected]
DC20D MK2 GENSET CONTROLLER USER MANUAL
2
Symbol Description
Symbol
Description
Note
Remind operators to operate correctly, otherwise it may cause
the equipment not to work correctly.
Be care
It is indicated that potential hazards can damage equipment
without proper precautions.
Warning
It is indicated if appropriate preventive measures are not taken,
potentially dangerous situations may result in death, serious
personal injury or significant property losses.
DC20D MK2 GENSET CONTROLLER USER MANUAL
3
Warning
1. The installation of this equipment must be carried out by professionals.
2. When installing and operating the controller, please read the entire instruction
manual first.
3. Any maintenance and commissioning of the equipment must be familiar with all the
equipment.
4. t, safety standards and precautions in advance, otherwise it may cause personal
injury or damage to related equipment.
5. The engine must have an overspeed protection device independent of the
controller system to avoid casualties or other damage caused by engine out of
control.
6. After the installation of the controller is completed, please verify that all protection
functions are valid.
Be Care
1. Please keep the good connection of the power supply of the controller. Do not
share the connection lines of the positive and negative electrodes of the battery
with the floating charger.
2. During the operation of the engine, do not disconnect the battery, otherwise it may
cause damage to the controller.
DC20D MK2 GENSET CONTROLLER USER MANUAL
4
CATALOGUE
1. Summary............................................................................................................................... 5
2. Main Features...................................................................................................................... 5
3. Parameters Display............................................................................................................. 5
4. Protection.............................................................................................................................. 5
5. Parameters........................................................................................................................... 6
6. Overall Dimension and Wiring Diagram........................................................................... 7
7. Installation instruction....................................................................................................... 10
8. Panel and display.............................................................................................................. 11
9. Control and operation instruction.................................................................................... 12
10. Warnings and Shutdown Alarms.................................................................................. 14
11. Parameters setting.......................................................................................................... 18
12. Fault finding......................................................................................................................23
Notes:
1. All rights reserved. No part of this duplication may be reproduced in any material
form (including photocopying or storing in any medium by electronic means or others)
without the written permission of the copyright holder.
2. MEBAY Technology reserves the rights to change the contents of this document
without prior notice.
DC20D MK2 GENSET CONTROLLER USER MANUAL
5
1. Summary
DC20D MK2 is one module used for Diesel/gasoline Generator, It's an
upgraded product of DC20D.It is with the functions of Auto Star/Stop, Protection and
Alarm indication. DC Power and Running situation is indicated on the front panel.
The status of the engine and generator can be checked conveniently because
these parameters of over speed, under speed, Over Frequency, Low Frequency,
Over Voltage, Under Voltage, Low Oil Pressure, High Temperature, Low Water Level,
Low Oil Level, Charge Failure, Over-time Stop, Emergency Stop Alarm System as
well as Low Battery Voltage can be indicated in time.
The output connector is connected with traditional relay which can burden more
output current. The parameters can also be set by the front face buttons so that it can
be used in different kinds of situations.
2. Main Features
Dual core 32bit high performance single chip microcomputer.
5 Units LED tube Display.
LED and Fault Alarm Code Indication.
Totally 4 relay’s output, among which 2 relay output can be self-configurable, each
relay can be set as max 6 functions.
It has two sensors and three switch inputs (input channels 2 and 3 can be
configured as sensors or switch inputs);
With RS485 communication port, can achieve “Three Remote” functions via
MODBUS protocol.
Various of crank conditions (RPM, Frequency, Oil Pressure) can be chosen.
Sensor can be self-defined by PC software.
Control Protection: Auto Start/Stop of genset, perfect failure display and protection.
Standard water-proof rubber gasket, The waterproof can reach IP54.
Module design: All the connections are adapted with European connectors so that
installation, connection, repair and replacement can be more easily.
3. Parameters Display
Engine RPM
Generator Frequency Hz
Generator Phase voltage L-N
Generator current A
Engine battery voltage
Running time
Accumulation time
Engine water temperature
Engine oil pressure
4. Protection
Emergency Stop
Over frequency stop
Under frequency stop
Over voltage stop
Under voltage stop
Over current stop
DC20D MK2 GENSET CONTROLLER USER MANUAL
6
Low Oil Pressure Stop
High water temperature stop
Oil pressure sensor Open
Water temperature sensor Open
Start Failure
Stop Failure
Low Water level stop
Low Water level stop
High Oil temperature stop
RPM signal lost alarm
Over speed stop
Under speed stop
Low Fuel Level warning
Low Battery voltage warning
5. Parameters
Options
Parameters
Working voltage
DC8V----36V Continuous
Power consumption
Standby：24V：MAX 1W
Working：24V：MAX 3W
AC Voltage Input
1P2W 30VAC-276VAC (ph-N)
Rotate speed sensor
Frequency
30-9999Hz
MAX Accumulating Time
99999.9Hours（Min Store time:6min）
Fuel Relay Output
Max 5 Amp DC+VE Supply voltage
Start Relay Output
Max 5 Amp DC+VE Supply voltage
AUX. OUTPUT 1
Max 2.5 Amp DC+VE Supply voltage
AUX. OUTPUT 2
Max 2.5 Amp DC+VE Supply voltage
Excitation output
Max 1AMP DC+VE supply voltage
Switch value input
Available if connecting with Battery -
Working condition
-25-65℃
Storage condition
-40-85℃
Protection Level
IP54：when waterproof rubber gasket is added
between controller and its panel
Insulation strength
Apply AC1.5kV voltage between high voltage terminal
and low voltage terminal; The leakage current is not
more than 3mA within 1min.
Overall dimension
78mm*78mm*55mm
Panel cutout
67mm*67mm
Weight
0.3Kg
DC20D MK2 GENSET CONTROLLER USER MANUAL
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6. Overall Dimension and Wiring Diagram
Overall Dimension:
DC20D MK2 GENSET CONTROLLER USER MANUAL
8
Descriptions of terminal connection
No.
Function
Description
Cable
cross
sectional
area
1
Battery Negative Input B-
Controller power supply input B-.
2.5mm2
2
Battery Negative Input B+
Controller power supply input B+.
2.5mm2
3
Fuel Output
+VE output, Max 5 Amp
1.5mm2
4
Crank Output
+VE output, Max 5 Amp.
1.5mm2
5
Aux. Output 1
+VE output, Max 2.5 Amp.
1.5mm2
6
Aux. Output 2
+VE output, Max 2.5 Amp.
1.5mm2
7
Charging excitation output
+VE output, Max 0.9 Amp.
1.0mm2
8
Aux. Input 1
Switch input,Connect to the negative side of
the active circuit.
1.0mm2
9
Generator Voltage L
Connect to generator set output L line
1.0mm2
10
Generator Voltage N
Connect to generator set output N line
1.0mm2
11
Load CT Secondary
Connected to the secondary of current
transformer, 0-5A input.
1.0mm2
12
Load CT Secondary
1.0mm2
13
Speed sensor -
Connect sensor input.Use a shielded wire to
connect the speed sensor.
1.0mm2
14
Speed sensor +
1.0mm2
15
Aux. Input 2
Switch input or sensor input (to be
configured)
16
Aux. Input 3
Switch input or sensor input (to be
configured)
DC20D MK2 GENSET CONTROLLER USER MANUAL
9
DC20D MK2Typical Wiring Diagram
WL
CTs MUST BE 5 AMP SECONDARY
FROM GENERATOR
5
4
3
21
12
109
L
67
MODEL:DC20D MKII
-VE
+VE
AUX. INPUT 1
8
11
15 16
N L COM
13 14
SCR
B+ B-
AUX. OUTPUT 1
GEN CURRENT
GEN VOLTS
SWITCH
FUSE 10 A
BATTERY
FUEL
CRANK
AUX. OUTPUT 2
ALT
BATTERY NEGATIVE MUST BE GROUNDED
AUX. INPUT 2
AUX. INPUT 3
P1 P2
S1 S2
L
N
RS485
MPU
FUSE 2A
TO LOAD
Note: Please don’t move battery during running status or it may cause the
controller broken!
WARNING: When generator is on-load, C. T. secondary must not be open
circuit, Otherwise, the high voltage generated will pose a danger to personal safety.
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