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DKG-255 User Manual Firmware V-1.0

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The unit continuously monitors abnormal conditions during operation. Programmable alarm limits are
provided for every measured value.

If any fault condition occurs, the related error led turns on and an alarm code is displayed.

ALARM CODE DESCRIPTION

Err1

High Battery Voltage. This alarm occurs if battery voltage is higher than 30VDC.

Err2

Low Battery Voltage. This alarm occurs if battery voltage is below set value.

Err3

MPU Error. This alarm occurs if mpu signal is lost when engine speed is below
600rpm.

Err4

MPU Error. This alarm occurs if mpu signal is lost when engine speed is above
600rpm.

Err5

Shot circuit or overload at actuator output.

Err6

Overspeed.

Hold pressed Up and Down buttons together for 5
seconds to reset errors.

Press Up button to view error codes.

5. PROTECTIONS AND ALARMS

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Содержание DKG-255

Страница 1: ... remote location The auxiliary speed adjustment input allows voltage controlled speed trimming for synchronizing and load sharing applications If an adequate speed signal is not supplied to the unit the speed signal monitoring circuit will detect this and shut off the actuator output in order to prevent any damage The unit is capable to deliver actuator currents as high as 10 Amps However the outp...

Страница 2: ...ntrol unit which reduce future issues For all technical queries please contact Datakom at below e mail address technical support datakom com tr If additional information to this manual is required please contact the manufacturer directly at below e mail address technical support datakom com tr Please provide following information in order to get answers to any question Device model name see the ba...

Страница 3: ...R DESCRIPTION 01 10 04 2019 MH First edition firmware version 1 0 CAUTION Potential risk of injury or death WARNING Potential risk of malfunction or material damage ATTENTION Useful hints for the understanding of device operation REVISION HISTORY TERMINOLOGY ...

Страница 4: ... proximity of the unit Fuses must be of fast type with a maximum rating of 16A Disconnect all power before working on equipment When the unit is connected to the network do not touch terminals Any electrical parameter applied to the device must be in the range specified in the user manual Although the unit is designed with a wide safety margin over range parameters may reduce lifetime alter operat...

Страница 5: ...AMMING 7 PROGRAM PARAMETER LIST 8 OPERATION OF THE UNIT 8 1 AUTO PID SETUP 9 OTHER FEATURES 9 1 ISOCHRONOUS AND DROOP OPERATION 9 2 IDLE SPEED SELECTION 9 3 EXTERNAL SPEED ADJUSTMENT 9 4 SPEED ADJUSTMENT FOR AUTOMATIC SYNCHRONIZATION 9 5 STARTING FUEL ADJUSTMENT 9 6 SPEED RAMPING ADJUSTMENT 9 7 OVERSPEED ALARM ADJUSTMENT 9 8 SAVING AND RESTORING THE CONFIGURATION 9 9 FIRMWARE UPDATE 10 CONNECTION ...

Страница 6: ...e specific to each engine is performed The unit is capable of delivering actuator currents as high as 10 Amps However the output circuit is protected against short circuit and overload Protection against reverse battery connection and transient voltages are provided The unit is suitable for both 12 and 24V operation The unit is designed to be mounted inside a control cabinet A vertical mounting po...

Страница 7: ...should not be less than 0 50mm 0 020 The usual way of adjusting the gap is backing up the sensor turn after touching the ring gear teeth The magnetic speed sensor voltage should be at least 1 5 VAC RMS during cranking If the alternator voltage is used for speed detection an AC voltage of 300V or below can be directly connected to terminals E F Do not rely exclusively on the governor controller act...

Страница 8: ...ther twisted or shielded If the alternator voltage is used for speed detection an AC voltage of 300V or below can be directly connected to these terminals F Magnetic pick up G Speed Trim Input Connect an external speed trim potentiometer to adjust the engine speed H J K Droop Input Connecting this terminal to battery negative will cause DROOP operation The DROOP range is adjusted through DROOP pro...

Страница 9: ... J External speed trim range 6 min 3000Hz Auxiliary input terminal M Input voltage range 0 to 10VDC Input impedance 150 k ohms Adjustment range 25 min 3000 Hz Steady state speed accuracy 0 2 Droop adjustment range 1 to 5 minimum Actuator output 10 Amps continuous max Operating temp 20 C 4 F to 70 C 158 F Storage temp 30 C 22 F to 80 C 176 F Maximum humidity 95 non condensing Dimensions 130 x 110 x...

Страница 10: ...amp red Led turns on when the rpm reaches running rpm value and the speed is increasing as defined by speed ramp ratio parameter Running red Led turns on when the engine reaches its nominal speed Overspeed red Led turns on when engine speed is above the overspeed limit Error red Led turns on when an error condition occurs Droop red Led turns on when the droop input is active terminal_K Idle red Le...

Страница 11: ...s Switches the display to the next measured parameter Switches to alarm menu to display error codes PROGRAMMING MODE Select next parameter Increase the value of selected parameter Switches the display to the previous measured parameter PROGRAMMING MODE Select previous parameter Decrease the value of selected parameter When held pressed for 5 seconds enters PROGRAMMING mode When held pressed for 5 ...

Страница 12: ...he user The measured parameters are Engine RPM Frequency Battery Voltage Minimum rpm Maximum rpm The unit has a 4 digit seven segment display that shows Measurements Program parameters Firmware version The navigation between measurement screens is made with button By pressing the button the name of the measured value will be displayed 4 3 LED DISPLAY ORGANIZATION Measured parameter Navigate to nex...

Страница 13: ...DKG 255 User Manual Firmware V 1 0 13 Navigate to next measurement Measured parameter Measured parameter Navigate to next measurement Frequency Battery Voltage ...

Страница 14: ...DKG 255 User Manual Firmware V 1 0 14 Measured parameter Navigate to next measurement Maximum Engine rpm Measured parameter Navigate to next measurement Minimum Engine rpm ...

Страница 15: ...This alarm occurs if battery voltage is higher than 30VDC Err2 Low Battery Voltage This alarm occurs if battery voltage is below set value Err3 MPU Error This alarm occurs if mpu signal is lost when engine speed is below 600rpm Err4 MPU Error This alarm occurs if mpu signal is lost when engine speed is above 600rpm Err5 Shot circuit or overload at actuator output Err6 Overspeed Hold pressed Up and...

Страница 16: ...ram mode hold pressed buttons for 5 seconds When the program mode is entered the display will show PGM The program mode will not affect the operation of the unit Thus programs may be modified anytime even while the engine is running 6 PROGRAMMING Navigate to program parameters Enter selected parameter ...

Страница 17: ... with and buttons When a program parameter is modified press button to save in memory If button is pressed it returns to main menu of programming without saving the value Program parameters are kept in a non volatile memory and are not affected from power failures To exit the program mode hold pressed buttons together Increase parameter value Decrease parameter value Return to main menu Save to me...

Страница 18: ...er defines the amount of actuator output during cranking P_10 Running RPM Fuel 0 100 50 This parameter defines the amount of actuator output when the engine has fired It is calculated as a percentage of parameter P_09 P_11 Speed Ramping rpm Rpm sec 10 9999 200 This parameter defines the value of the speed ramping in rpm sec P_12 Low Battery Voltage Vdc 2 30 8 This parameter defines the low battery...

Страница 19: ...configurations can be saved with the numbers from 2 to 15 1 is default factory settings of the device P_26 Restore Configuration 0 15 0 This parameter is used to restore user defined configurations of the device 1 is the default factory settings of the device User defined configurations can be restored from 2 to 15 P_27 Rpm Read from Canbus 0 1 0 This is the parameter to enable rpm target setting ...

Страница 20: ...parameters will prevent the actuator from opening completely and minimize engine exhaust smoke The OVERSPEED parameters adjusts the speed alarm threshold When the engine overspeeds this will activate the overspeed alarm and the related error led will turn on During cranking the speed signal will be below the P_07 Running rpm which causes the actuator to open as defined by P_09 Starting RPM Fuel Wh...

Страница 21: ...he idle speed is selected by connecting the terminal L to battery negative Switching between idle and nominal speeds can be done while the engine is running An external speed adjustment potentiometer can be connected between terminals G H and J The potentiometer value should decrease with a clockwise rotation speed increase The recommended potentiometer value is 5 K ohms A different value may also...

Страница 22: ...e configuration Thus different configurations can be saved to different memory locations and any of them can be restored later The memory location 1 is reserved for the factory set configuration It cannot be overwritten but may be restored anytime If the user selects the memory location number from P_26 Restore Configuration parameter parameters will be automatically configured accordingly In orde...

Страница 23: ...DKG 255 User Manual Firmware V 1 0 23 10 CONNECTION DIAGRAM ...

Страница 24: ... from the usual waste The European ROHS directive restricts and prohibits the use of some chemical materials in electronic devices Following the DIRECTIVE 2011 65 EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment this product is listed in annex I under category Monitoring and control ...

Страница 25: ...eeded then readjust it b Check wiring c The speed sensor may be defective 4 Crank the engine Measure the DC battery voltage while cranking It should be above 8 VDC for a 12V system and 16V for a 24V system If below a The battery is weak or discharged 5 If the battery voltage is correct a Speed adjustment is set too low readjust b The unit is defective The engine speed is too low 1 Check the speed ...

Страница 26: ...Signal strength b Wiring c Shielding 3 Check the actuator fuel lever system for loose mechanical linkage or friction a Make the checks while the engine is operating 4 Check for electromagnetic disturbance sources in close proximity as a battery chargers b ignition systems c radio transmitters Make a test by turning them off mometarily If the stability cannot be reached then enclose the unit in a s...

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