Mebay DC20D MK2 User Manual
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Mebay DC20D MK2 User Manual

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DC20D MK2
GENSET CONTROLLER
USER MANUAL

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Summary of Contents for Mebay DC20D MK2

  • Page 1 DC20D MK2 GENSET CONTROLLER USER MANUAL...
  • Page 2 DC20D MK2 GENSET CONTROLLER USER MANUAL Software Version Version Date Note V1.0 2020-08-01 Original release. 1) Optimization of over current inverse time V1.1 2019-03-01 function. 2) Add over-current fault delay function. Add RS485 communication baud rate and CRC V1.2 2020-05-01 check bit setting;...
  • Page 3 DC20D MK2 GENSET CONTROLLER USER MANUAL Symbol Description Symbol Description Remind operators to operate correctly, otherwise it may cause the equipment not to work correctly. Note It is indicated that potential hazards can damage equipment without proper precautions. Be care...
  • Page 4 DC20D MK2 GENSET CONTROLLER USER MANUAL 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.

  • Page 5: Table Of Contents

    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.

  • Page 6: Summary

    DC20D MK2 GENSET CONTROLLER USER MANUAL 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.

  • Page 7: Parameters

    DC20D MK2 GENSET CONTROLLER USER MANUAL  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 ...

  • Page 8: Overall Dimension And Wiring Diagram

    DC20D MK2 GENSET CONTROLLER USER MANUAL 6. Overall Dimension and Wiring Diagram  Overall Dimension:...
  • Page 9 DC20D MK2 GENSET CONTROLLER USER MANUAL  Descriptions of terminal connection Cable cross No. Function Description sectional area Battery Negative Input B- Controller power supply input B-. 2.5mm Battery Negative Input B+ Controller power supply input B+. 2.5mm Fuel Output +VE output, Max 5 Amp 1.5mm...
  • Page 10 DC20D MK2 GENSET CONTROLLER USER MANUAL  DC20D MK2Typical Wiring Diagram CTs MUST BE 5 AMP SECONDARY S1 S2 TO LOAD B+ B- RS485 GEN VOLTS GEN CURRENT MODEL:DC20D MKII 13 14 BATTERY NEGATIVE MUST BE GROUNDED Note: Please don’t move battery during running status or it may cause the controller broken! WARNING: When generator is on-load, C.

  • Page 11: Installation Instruction

    Battery Voltage Input DC20D MK2 controller is suitable for 8-36V DC battery voltage. Battery negative must be reliably connected to the enclosure of the engine. The controller power supply B+ and B- must be connected to battery positive and negative, and the wire size must not be less than 2.5mm...

  • Page 12: Panel And Display

    DC20D MK2 GENSET CONTROLLER USER MANUAL Current transformer with rated secondary current 5A must be externally connected to the controller current input. 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.

  • Page 13: Control And Operation Instruction

    DC20D MK2 GENSET CONTROLLER USER MANUAL 9. Control and operation instruction  Manual Start Mode press and make sure it is in the stop position before starting. Press “ ” and the test file indicator is on. At this time, it is detected whether the connection of each sensor is normal.
  • Page 14 DC20D MK2 GENSET CONTROLLER USER MANUAL process after the "loop time delay" is performed. Auto start and stop process: Longest Longest Longest voltage rated speed temperature Transfer built/ warming increasing increasing Cooling runn- back to increasing up time time time...

  • Page 15: Warnings And Shutdown Alarms

    DC20D MK2 GENSET CONTROLLER USER MANUAL 10. Warnings and Shutdown Alarms  Warnings Notes: Warning is a non-serious failure state, which will not harm the gensets system for the time being. It only reminds operators to pay attention to the situation that does not meet the requirements and solve it in time to ensure the continuous operation of the system.
  • Page 16 DC20D MK2 GENSET CONTROLLER USER MANUAL Alarm lights will light up, Generators will stop, displays "ALA.20" on the led screen.  Shutdown Alarms Warning: After the Shutdown Alarm occurs, the system will be locked immediately and the generator set will be stopped. Only after troubleshooting, press key to clear the alarm, can it be re-operated.
  • Page 17 DC20D MK2 GENSET CONTROLLER USER MANUAL screen. High Coolant Temperature Sensor Alarm When the controller detects that the coolant temperature value is higher than the "High coolant temperature alarm", Then start alarm delay and the duration (Normal alarm delay) have not returned to normal, the alarm of High coolant temperature alarm is reported.Alarm lights...
  • Page 18 DC20D MK2 GENSET CONTROLLER USER MANUAL frequency alarm”, Then start alarm delay and the duration (Normal alarm delay) have not returned to normal, the alarm of under frequency is reported. Alarm lights will light up, Generators will stop, displays "ALA.16" on the led screen.

  • Page 19: Parameters Setting

    DC20D MK2 GENSET CONTROLLER USER MANUAL 11. Parameters setting  Enter the edition page Please set the parameters according to below steps: 1）In the stop mode, please simultaneously, then loose, Then system comes into menu setting. 2）Press to shift up the parameters, press...
  • Page 20 DC20D MK2 GENSET CONTROLLER USER MANUAL 7- Low water level alarm switch. 8- 9 Reserved. 10- Oil pressure sensor VDO 0-10BAR. 11-Oil pressure sensor DATCON 10Bar 12- Oil pressure sensor 3015237 10Bar 13- Oil pressure sensor User-defined(PC to configure） AUX. INPUT 0- Disable.
  • Page 21 DC20D MK2 GENSET CONTROLLER USER MANUAL AUX. when the setting value of shutdown OUTPUT (4. Preheat ) delay is over, then it is off. 2. Idle speed control: used for speed 2(Functional of PIN 6) controller, there is output under idle but no output under high speed.
  • Page 22 DC20D MK2 GENSET CONTROLLER USER MANUAL frequency, under voltage, charge failure are all invalid during this time except for emergency stop ,over speed and emergency stop. Idle time 0~240s (5s) Idle running time when crank successfully and before engine stop.
  • Page 23 DC20D MK2 GENSET CONTROLLER USER MANUAL warning under battery voltage delay but still lower (normal alarm delay), then under battery voltage warns. If the value is set as 0, when coming into parameters setting, then all the parameters can be set as defaults.

  • Page 24: Fault Finding

    DC20D MK2 GENSET CONTROLLER USER MANUAL Over current 1-2000A (500A) When the current is higher than the alarm value and comes into over current delay but still higher (over current delay), then over current alarms. If the value is set as 2000, then the alarm is disabled.
  • Page 25 DC20D MK2 GENSET CONTROLLER USER MANUAL Check the genset AC voltage. Check DC fuse. Genset Emergency Check the emergency stop button. Stop Check the controller connection. Check oil pressure sensor and its wiring. Check the oil pressure sensor type and controller settings must Low oil pressure alarm be consistent.

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