Download
Share
Print this page
Datakom DKG-545 Manual
  1. Manuals
  2. Brands
  3. Datakom Manuals
  4. Controller
  5. DKG-545
  6. Manual

Datakom DKG-545 Manual

Automatic mains failure unit
Hide thumbs

Advertisement

Quick Links

Download this manual
DKG-545 User Manual
AUTOMATIC MAINS FAILURE UNIT
Automatic mains failure
Engine control
Generator protection
Built in alarms and warning
Manual control enabled
Magnetic pickup input
Dual genset mutual standby operation
Load shedding, dummy load
Gas engine support
Engine idle speed control
True RMS measurements
3 phase mains voltage inputs
3 phase genset voltage inputs
3 phase genset/load CT inputs
Engine oil pressure measurement
Engine coolant temperature measurement
Fuel level measurement
Oil temperature measurement
Canopy temperature measurement
Canopy temperature measurement
Genset active power measurement
Genset power factor measurement
Engine rpm display
Periodic maintenance request indicator
Engine hours counter
Event logging with date-time stamp and complete
measurement values
Remote Panel Feature
4-20mA Oil pressure measurement
FEATURES
Stores last 100 events
Statistical counters
Battery backed-up real time clock
3 level password protection
Programmable parameters
Return to factory settings enabled
RS-232/ RS-485 selectable serial port
Firmware downloadable from serial port
Free MS-Windows Remote monitoring SW:
-local and modem connection
-monitoring, download of parameters
-networking via modems
GSM and PSTN modem support
GSM-SMS sending on fault
Modem calls on fault
MODBUS communication
128x64 graphic LCD display
Multiple language support
Customer logo display
Analogue inputs: 5
Digital inputs: 9
Digital outputs: 7
Input / output expansion capability
Remote Start operation available
Engine Idle speed control
Survives cranking dropouts
Sealed front panel
Plug-in connection system for easy replacement
Dimensions (202x148x48mm)
V-11
DKG-545

Advertisement

loading
Need help?

Need help?

Do you have a question about the DKG-545 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Datakom DKG-545

Summary of Contents for Datakom DKG-545

  • Page 1 DKG-545 User Manual V-11 DKG-545 AUTOMATIC MAINS FAILURE UNIT FEATURES Automatic mains failure Stores last 100 events Engine control Statistical counters Generator protection Battery backed-up real time clock Built in alarms and warning 3 level password protection Manual control enabled...
  • Page 2 KG-545 family units. Follow carefully advices given in the document. These are often good practices for the installation of genset control units which reduce future issues. For all technical queries please contact Datakom at below e-mail address: datakom@datakom.com.tr RELATED DOCUMENTS...
  • Page 3 DKG-545 User Manual V-11 ORDERING CODES The KG-545 family units are available in various options and peripheral features. Please use below information for ordering the correct version: KG545 Variant 00: standard unit Family Code With Sealing 01...99: customer gasket specific products...
  • Page 4 DKG-545 User Manual V-11 SAFETY NOTICE Failure to follow below instructions will result in death or serious injury Electrical equipment should be installed only by qualified specialist. No responsibility is assured by the manufacturer or any of its subsidiaries for any consequences resulting from the non- compliance to these instructions.
  • Page 5 DKG-545 User Manual V-11 TABLE OF CONTENTS Section 1. INSTALLATION INSTRUCTIONS 2. MOUNTING 2.1. Dimensions 2.2. Sealing, gasket 2.3. Electrical installation 3. TERMINAL DESCRIPTIONS 3.1. Battery voltage input 3.2. AC voltage input 3.3. AC current inputs 3.4. Digital inputs 3.5. Analog sender inputs and analog ground 3.6.
  • Page 6 DKG-545 User Manual V-11 11. PROTECTIONS AND ALARMS 11.1. Service request warning 11.2. Alarms and warnings 12. PROGRAMMING 12.1. Resetting to factory defaults 12.2. Entering the programming mode 12.3. Navigating between menus 12.4. Modifying parameter value 12.5. Programming mode exit 13.
  • Page 7 DKG-545 User Manual V-11 1. INSTALLATION INSTRUCTIONS Before installation: Read the user manual carefully, determine the correct connection diagram. Remove all connectors and mounting brackets from the unit, then pass the unit through the mounting opening. Put mounting brackets and tighten. Do not tighten too much, this can brake the enclosure.
  • Page 8 DKG-545 User Manual V-11 2. MOUNTING 2.1. DIMENSIONS Dimensions: 202x148x48mm (7.95”x5.8”x1.9”) Panel Cutout: 183x134mm minimum (7.2”x5.3”) Weight: 400g (1 lb) K35D01-EN - 8 -...
  • Page 9 DKG-545 User Manual V-11 The unit is designed for panel mounting. The user should not be able to access parts of the unit other than the front panel. Mount the unit on a flat, vertical surface. Before mounting, remove the mounting brackets and connectors from the unit, then pass the unit through the mounting opening.
  • Page 10 DKG-545 User Manual V-11 Two different types of brackets are provided: Self retaining type bracket Screw type bracket Installation of screw type bracket Installation of self retaining type bracket Do not tighten too much, this may break the unit. K35D01-EN...
  • Page 11 DKG-545 User Manual V-11 2.2. SEALING, GASKET The rubber gasket provides a watertight means of mounting the module to the genset panel. Together with the gasket, 60529-IP65 protection can be reached from the front panel. A short definition of IP protection levels is given below.
  • Page 12 DKG-545 User Manual V-11 2.3. ELECTRICAL INSTALLATION Do not install the unit close to high electromagnetic noise emitting devices like contactors, high current busbars, switchmode power supplies and the like. Although the unit is protected against electromagnetic disturbance, excessive disturbance can affect the operation, measurement precision and data communication quality.
  • Page 13 DKG-545 User Manual V-11 3. TERMINAL DESCRIPTIONS 3.1. BATTERY VOLTAGE INPUT Supply voltage: 8 to 36VDC Cranking dropouts: Survives 0VDC during 100ms. The voltage before surge should be 8VDC minimum Overvoltage protection: Withstands 150VDC continuously. Reverse voltage: -36VDC continuous Maximum operating 250mA @ 12/24VDC.
  • Page 14 SELECTING THE CT ACCURACY CLASS: The CT accuracy class should be selected in accordance with the required measurement precision. The accuracy class of the Datakom controller is 0.5%. Thus 0.5% class CTs are advised for the best result. K35D01-EN - 14 -...
  • Page 15 DKG-545 User Manual V-11 CONNECTING CTs: Be sure of connecting each CT to the related phase input with the correct polarity. Mixing CTs between phases will cause faulty power and pf readings. Many combinations of incorrect CTs connections are possible, so check both order of CTs and their polarity.
  • Page 16 DKG-545 User Manual V-11 EFFECT OF POLARITY REVERSAL The generator is still loaded with 100 kW On each phase. The load Power Factor (PF) is 1. PF in phase L2 will show -1,00 due to reverse CT polarity. The result is that total generator power displayed by the controller is 100 kW.
  • Page 17 DKG-545 User Manual V-11 3.4. DIGITAL INPUTS Number of inputs: 8 inputs, all configurable Function selection: from list Contact type: Normally open or normally closed (programmable) Switching: Battery negative or battery positive (programmable) Structure: 47 k-ohms resistor to battery positive, 110k-ohms to battery negative.
  • Page 18 DKG-545 User Manual V-11 3.6. CHARGE INPUT TERMINAL The Charge terminal is both an input and output. When the engine is ready to run, this terminal supplies the excitation current to the charge alternator. The excitation circuit is equivalent to a 2W lamp.
  • Page 19 DKG-545 User Manual V-11 3.8. DIGITAL OUTPUTS The unit offers 6 digital outputs with programmable function, selectable from list. Structure: Negative pulling protected semiconductor output. One terminal is connected to battery negative. Max continuous current: 1.0 ADC Max switching voltage:...
  • Page 20 DKG-545 User Manual V-11 3.9. INPUT/OUTPUT EXTENSION The module provides resources for 16 additional digital inputs and 16 additional digital outputs. Digital inputs can be extended using DKG-188 Digital Input Extension modules, each one providing 8 inputs. Digital inputs are programmable through the main controller.
  • Page 21 DKG-545 User Manual V-11 3.10. RS-232 PORT Description: RS-232, non isolated. Functionality: External modem, PC connection, PLC connection Connector: RJ11-6pin Connection: 6 wires (Rx-Tx-DTR-CxD-GND-+10V). Full duplex. Baud rate: 9600 bauds Data type: 8 bit data, no parity, 1 bit stop...
  • Page 22 The RS-485 port features MODBUS-RTU protocol. Multiple modules (up to 128) can be paralleled on the same RS-485 bus for data transfer to automation or building management systems. The Modbus register list is available at Datakom technical support. The RS-485 port provides also a good solution for distant PC connection where Rainbow program will enable programming, control and monitoring.
  • Page 23 DKG-545 User Manual V-11 4. FUNCTIONALITIES The same unit provides different functionalities through parameter setting. Thus a single stock item will fulfill various duties, minimizing stock cost. 4.1. CT LOCATION SELECTION CTs may be placed at alternator or load busbars. The CT location selection is configured with Controller Configuration >...
  • Page 24 DKG-545 User Manual V-11 4.4 REMOTE DISPLAY UNIT FUNCTIONALITY The standard KG-545 unit may be configured as a remote display and control panel of another KG-545 unit. The remote panel will have identical display and led status with the main unit and will allow the...
  • Page 25 DKG-545 User Manual V-11 5. CONNECTION DIAGRAMS 5.1. AMF FUNCTIONALITY, CTs AT LOAD SIDE K35D01-EN - 25 -...
  • Page 26 DKG-545 User Manual V-11 5.2. AMF FUNCTIONALITY, CTs AT ALTERNATOR SIDE K35D01-EN - 26 -...
  • Page 27 DKG-545 User Manual V-11 5.3. REMOTE START FUNCTIONALITY K35D01-EN - 27 -...
  • Page 28 DKG-545 User Manual V-11 5.4. ENGINE CONTROL FUNCTIONALITY K35D01-EN - 28 -...
  • Page 29 DKG-545 User Manual V-11 5.5. REMOTE DISPLAY PANEL FUNCTIONALITY K35D01-EN - 29 -...
  • Page 30 DKG-545 User Manual V-11 6. TERMINAL DESCRIPTION Term Function Technical data Description BATTERY NEGATIVE 0VDC Power supply negative connection. BATTERY POSITIVE +12 or 24VDC The positive DC Supply terminal for both 12V and 24V battery systems. Term Function Technical data...
  • Page 31 DKG-545 User Manual V-11 Term Function Technical data Description COOLANT LEVEL Digital input This terminal drives the coolant level sensor with AC signal and senses the coolant liquid level. IN-1: HIGH TEMP Digital inputs These inputs have programmable characteristics selected via the program IN-2: LOW OIL PRESSURE menu.
  • Page 32 DKG-545 User Manual V-11 7. TECHNICAL SPECIFICATIONS Alternator voltage: 0 to 300 V-AC Phase to Neutral (0 to 520 V-AC Phase to Phase) Alternator frequency: 0-100 Hz. Mains voltage: 0 to 300 V-AC Phase to Neutral (0 to 520 V-AC Phase to Phase) Mains frequency: 0-100 Hz.
  • Page 33 DKG-545 User Manual V-11 8. DESCRIPTION OF CONTROLS 8.1. FRONT PANEL FUNCTIONALITY Graphic LCD Next display Mimic Diagram screen group (sysem status) Next screen in the same group. LAMP TEST if held pressed Alarm Mute & Mains Reset button Contactor...
  • Page 34 DKG-545 User Manual V-11 8.2. PUSHBUTTON FUNCTIONS BUTTON FUNCTION Selects TEST mode. The genset runs and takes the load. Selects AUTO mode. The genset runs when necessary and takes the load. Selects MANUAL mode. The genset operation is controlled manually with front panel pushbuttons.
  • Page 35 DKG-545 User Manual V-11 8.3. DISPLAY SCREEN ORGANIZATION The unit measures a large number of electrical and engine parameters. The display of the parameters is organized as PARAMETER GROUPS and items in a group. Navigation between different groups are made with button.
  • Page 36 DKG-545 User Manual V-11 Group Screen Contents Description ENGINE Oil Pressure Displayed in bars and kPa, large characters PARAMETERS If PSİ display is enabled by program parameter, then displayed in bars and psi. Engine Temperature Displayed in degrees C and degrees F,...
  • Page 37 DKG-545 User Manual V-11 Group Screen Description COMMUNICATION This screen shows the modem parameters. STATUS It is displayed only if the modem is enabled. Group Screen Contents Description GENSET Genset Status Ascii explanation of the current status. STATUS Logo The company logo, Kirloskar Green Power Ideas.
  • Page 38 DKG-545 User Manual V-11 8.6. DISPLAY NAVIGATION MAP K35D01-EN - 38 -...
  • Page 39 DKG-545 User Manual V-11 8.7. LED LAMPS Alarm indicator Mains ON Load Mains Alarm Reset button Load Fault Indicator Genset led leds Genset ON led AUTO mode TEST mode MANUAL STOP mode indicator indicator mode indicator indicator Function Color Description...
  • Page 40 DKG-545 User Manual V-11 Function Color Description ALARM If a fault condition resulting to the engine shutdown has occurred, the alarm led turns on steadily. If a warning condition occurs, this led will flash. Alarms work on a first occurring basis. The occurrence of a fault will disable other faults of lower or equal priority.
  • Page 41 DKG-545 User Manual V-11 8.8. MEASURED PARAMETERS The unit performs a detailed set of measurements. The list of measured parameters is below: Mains voltage phase L1 to neutral Mains voltage phase L2 to neutral Mains voltage phase L3 to neutral...
  • Page 42 DKG-545 User Manual V-11 9. DISPLAYING EVENT LOGS The unit keeps record of the last 100 events in order to supply information for the service personal. The date-time, genset status information and a comprehensive set of measured values are stored within the event memory.
  • Page 43 DKG-545 User Manual V-11 Event logs are displayed within the program mode menu. This is designed in order to reduce the interference of event logs with other measurement screens. To enter the event display, press together buttons for 10 seconds.
  • Page 44 DKG-545 User Manual V-11 10. OPERATION OF THE UNIT 10.1. QUICK START GUIDE STOPPING THE ENGINE: Press STOP button; the engine will enter cooldown mode. Press again STOP button for immediate stop. STARTING THE ENGINE: Press MANUAL then press RUN...
  • Page 45 DKG-545 User Manual V-11 10.3. AUTO MODE The AUTO mode is entered by pressing the button. The AUTO mode is used for the automatic transfer between genset and mains. The controller will constantly monitor the mains availability. It will run the engine and transfer the load when a mains failure occurs.
  • Page 46 DKG-545 User Manual V-11 10.4. MANUAL MODE The MANUAL mode is entered by pressing the button. When the RUN button is pressed, the engine will be started regardless of the mains availability. The starting sequence is as described below: The unit turns on the fuel and preheat glow plugs (if any) and waits for preheat timer.
  • Page 47 DKG-545 User Manual V-11 11. PROTECTIONS AND ALARMS The unit provides 3 different protection levels, being warnings, loaddumps and shutdown alarms. 1- SHUTDOWN ALARMS: These are the most important fault conditions and cause: The ALARM led to be on steadily,...
  • Page 48 DKG-545 User Manual V-11 11.1. SERVICE REQUEST WARNING The SERVICE REQUEST led is designed to help the periodic maintenance of the genset to be made consistently. The periodic maintenance is basically carried out after a given engine hours (for example 200 hours), but even if this amount of engine hours is not fulfilled, it is performed after a given time limit (for example 12 months).
  • Page 49 DKG-545 User Manual V-11 11.2. ALARMS AND WARNINGS Digital input alarms are fully programmable for the alarm name, sampling and action. Only internal alarms are explained in this section. GENSET LOW / HIGH Set if the generator frequency is outside programmed limits for Genset Speed SPEED ALARM Fail Timer.
  • Page 50 DKG-545 User Manual V-11 OVERCURRENT Set if one of the genset phase currents goes over the Overcurrent Limit for LOADDUMP Overcurrent Timer. If currents go below the limit before expiration of the timer then no alarm will be set. EXCESS POWER...
  • Page 51 DKG-545 User Manual V-11 12. PROGRAMMING 12.1. RESETTING TO FACTORY DEFAULTS In order to resume to the factory set parameter values: -hold pressed the OFF, ACK/RESET and buttons for 5 seconds, -“RETURN TO FACTORY SET” will be displayed -immediately press and hold pressed the ACK/RESET button for 5 seconds -factory set values will be reprogrammed to the parameter memory.
  • Page 52 DKG-545 User Manual V-11 12.2. ENTERING THE PROGRAMMING MODE To enter the program mode, press together buttons for 10 seconds. When the program mode is entered, below password entry screen will be displayed. Press 2 buttons for 10 seconds A 4 digit password must be entered using ACK/RESET, buttons.
  • Page 53 DKG-545 User Manual V-11 12.3. NAVIGATING BETWEEN MENUS The program mode is driven with a two level menu system. The top menu consists on program groups and each group consists on various program parameters. When program mode is entered, a list of available groups will be displayed. Navigation between different ►...
  • Page 54 DKG-545 User Manual V-11 12.4. MODIFYING PARAMETER VALUE Next parameter Decrease parameter Increase value parameter value Return to the upper menu 12.5. PROGRAMMING MODE EXIT To exit the program mode press one of the mode selection keys. If no button is pressed during 1 minute the program mode will be cancelled automatically.
  • Page 55 DKG-545 User Manual V-11 13. PROGRAM PARAMETER LIST 13.1. CONTROLLER CONFIGURATION GROUP Factory Parameter Definition Unit Description This parameter is used to set LCD contrast. Adjust for LCD Contrast the best viewing angle. 0: English language selected. 1: Turkish language selected. This language may...
  • Page 56 Simulate Mains signal disappears. Flashing Relay Timer hours Dual Genset Systems: flashing relay toggle timer. Please contact DATAKOM for dual genset mutual stanby operation. This parameter trims precisely the real time clock circuit. Values from 0 to 63 speed up the clock with Real Time Clock Adjust 0.25sec/day steps.
  • Page 57 DKG-545 User Manual V-11 13.2. CONTROLLER CONFIGURATION GROUP (continued) Factory Parameter Definition Unit Description This parameter is used in the conversion of the genset frequency to engine rpm. RPM from genset frequency 0: read rpm from the optional MPU input...
  • Page 58 DKG-545 User Manual V-11 13.2. CONTROLLER CONFIGURATION GROUP (continued) Factory Parameter Definition Unit Description This parameter enables the Coolant Level AC Input. Enable Coolant Level AC 0: Coolant Level AC input not monitored Input 1: Coolant Level AC input monitored This parameter enables the Weekly Scedule Timer.
  • Page 59 DKG-545 User Manual V-11 13.3. ELECTRICAL PARAMETERS GROUP Factory Parameter Definition Unit Description This is the rated value of current transformers. Current Transformer Ratio All transformers must have the same rating. The secondary of the transformer will be 5 Amps.
  • Page 60 DKG-545 User Manual V-11 13.3. ELECTRICAL PARAMETERS GROUP (continued) Factory Parameter Definition Unit Description Low Battery Voltage If the battery voltage falls below this limit, this will 19.0 Warning generate a LOW BATTERY warning. High Battery Voltage If the battery voltage goes over this limit, this will 29.0...
  • Page 61 DKG-545 User Manual V-11 13.4. ENGINE PARAMETERS GROUP Factory Parameter Definition Unit Description If the genset frequency goes under this limit, a Low Frequency Shutdown GENSET LOW SPEED alarm is generated and the engine stops. If the genset frequency goes under this limit, a Low Frequency Warning GENSET LOW SPEED warning is generated.
  • Page 62 DKG-545 User Manual V-11 13.4. ENGINE PARAMETERS GROUP (continued) Factory Parameter Definition Unit Description This is the maximum start period. Starting will be Crank Timer automatically cancelled if the genset fires before the timer. Wait Between Starts This is the waiting period between two start attempts.
  • Page 63 DKG-545 User Manual V-11 13.4. ENGINE PARAMETERS GROUP (continued) Factory Parameter Definition Unit Description 10.0 When the genset frequency reaches this limit, the Crank Cut Frequency engine is supposed running and the crank output will release. 0: no crank stop with oil pressure...
  • Page 64 DKG-545 User Manual V-11 13.4. ENGINE PARAMETERS GROUP (continued) Factory Parameter Definition Unit Description This is the period between the frequency or revolution Genset Speed Fail Delay goes out of the limits and OVERSPEED or UNDERSPEED alarms occur. 0: Disable 4-20 mA Sender...
  • Page 65 DKG-545 User Manual V-11 13.6. DIGITAL INPUT CONFIGURATION The unit has 8 digital inputs. By using external input extension modules, up to 24 inputs in total are available. Input Configuration-01 (High Temperature Switch) Parameter Definition Unit Fac.Set Description 0: Shutdown (the engine stops immediately)
  • Page 66 DKG-545 User Manual V-11 Input Configuration-03 (Emergency Stop) Parameter Definition Unit Fac.Set Description 0: Shutdown (the engine stops immediately) 1: Load Dump (the engine stops after cooldown) Action 2: Warning (the horn relay operates) 3: No operation 0: Always 1: After holdoff timer...
  • Page 67 DKG-545 User Manual V-11 Input Configuration-06 (Spare–1 Input) Parameter Definition Unit Fac.Set Description 0: Shutdown (the engine stops immediately) 1: Load Dump (the engine stops after cooldown) Action 2: Warning (the horn relay operates) 3: No operation 0: Always 1: After holdoff timer...
  • Page 68 DKG-545 User Manual V-11 13.7. OUTPUT CONFIGURATION The parameters below define the functions of digital outputs. The unit has 7 digital outputs. All outputs have programmable functions, selected from a list. The relays may be extended up to 23 using Relay Extension Modules.
  • Page 69 DKG-545 User Manual V-11 OUTPUT FUNCTION LIST Fuel IN_1 alarm IN_1 warning Alarm IN_2 alarm IN_2 warning Start IN_3 alarm IN_3 warning Stop IN_4 alarm IN_4 warning Gen. Contactor IN_5 alarm IN_5 warning Mains Contactor IN_6 Alarm IN_6 warning Choke...
  • Page 70 DKG-545 User Manual V-11 13.8. INPUT FUNCTION SELECTION The parameters below define the functions of digital inputs, selected from a list. Functions from 12 to 23 activate also the related operating sequence. The related input configuration parameters apply for each input, thus any signal can be programmed for NO or NC contact, closing to BAT+ or BAT-.
  • Page 71 DKG-545 User Manual V-11 13.9. SITE ID STRING The site identity string is designed to identify the current controller. This is the site Id string sent at the beginning of SMS messages, e-mails and web page headers for the identification of the genset sending the message. Any 20 character long string may be entered.
  • Page 72 DKG-545 User Manual V-11 14. CRANK CUTTING In order to insure fast and reliable crank cutting, the unit uses various resources for engine running condition detection. Cranking is stopped when at least one of below conditions is met: - Crank timer expired: The crank timer is adjusted through Engine Parameters >...
  • Page 73 DKG-545 User Manual V-11 15. SOFTWARE FEATURES 15.1. Remote Start Operation The unit offers the possibility of Remote Start mode of operation. Any digital input may be assigned as Remote Start Input using Input Function Select program parameters. The Remote Start signal may be a NO or NC contact, switching to either battery positive or battery negative.
  • Page 74 DKG-545 User Manual V-11 15.3. Battery Charging Operation, Delayed Simulate Mains The Delayed Mains Simulation feature is used in battery backed up telecom systems where batteries are able to supply the load during a certain period. The genset is requested to run only when battery voltage drops below the critical level.
  • Page 75 If a Priority input is defined, then the system will work in priority mode. If the priority signal is applied, the unit will become master after each mains failure. If the priority signal is not applied, then the unit will become the slave one and the other genset will start. Please contact DATAKOM for a complete application manual. K35D01-EN...
  • Page 76 DKG-545 User Manual V-11 15.5. External Control of the Unit The unit offers total external control through programmable digital inputs. Any digital input may be programmed for below functions: - Force STOP mode - Force AUTO mode - Force TEST mode...
  • Page 77 DKG-545 User Manual V-11 15.7. Weekly Operation Scheduler In most applications, the genset is requested to operate only in working hours. Thanks to the weekly program feature, unwanted operation of the genset may be prohibited. The scheduler is active only in AUTO mode. When the scheduler prevents genset operation in AUTO mode, the AUTO led will flash.
  • Page 78 DKG-545 User Manual V-11 15.10. Engine Block Heater The unit is able to provide a digital output in order to drive the block heater resistor. The temperature reference is the coolant temperature measured from the analog sender input. The block heater output function may be assigned to any digital output using Relay Definition program parameters.
  • Page 79 DKG-545 User Manual V-11 15.13. Load Shedding / Dummy Load The load shedding feature consists on the disconnection of the least crucial loads when the genset power approaches to its limits. These loads will be supplied again when the genset power falls below the programmed limit.
  • Page 80 485 Enable parameters are different from zero, the local PC connection will not work. Advised modems are DATAKOM types which are powered up from the same DC battery voltage than the unit. Most of other desktop modems with standard AT commands are also usable, but it is the user‟s responsibility to provide an uninterrupted AC supply source to the modem.
  • Page 81 GSM SMS messages. Any new upcoming alarm will result in a new GSM SMS message. The new message will indicate all existing alarms, even masked ones. The necessary GSM modem cable will be supplied by DATAKOM. This is the same cable as PSTN (land) modems.
  • Page 82 PC or the downloading of stored parameters from PC to the unit. The necessary PC connection cable will be supplied by DATAKOM. For PCs without a serial port, below USB to serial adapters are tested and approved : DIGITUS USB 2.0 TO RS-232 ADAPTER (PRODUCT CODE: DA70146 REV 1.1)
  • Page 83 Detailed description about the MODBUS protocol is found in the document “Modicon Modbus Protocol Reference Guide”. The web address is: www.modbus.org/docs/PI_MBUS_300.pdf Below is a limited shortlist of readable registers. For the detailed Modbus Application Manual and a complete list of registers please contact DATAKOM. ADDRESS R / W...
  • Page 84 “Monitoring and control instruments including industrial monitoring and control instruments” and exempted from ROHS directive. However Datakom is not using any ROHS uncompliant electronic components in the production. Only the solder contains lead. The switching to unleaded solderin is in progress. K35D01-EN...
  • Page 85 DKG-545 User Manual V-11 21. TROUBLESHOOTING GUIDE Below is a basic list of most often encountered troubles. More detailed investigation may be required in some cases. The genset operates while AC mains are OK or continues to operate after AC mains are OK: -Check engine body grounding.
  • Page 86 DKG-545 User Manual V-11 The engine does not run after the first start attempt, then the unit does not start again and OIL PRESSURE EXISTS ! message is displayed: -The oil pressure switch closes very lately. As the unit senses an oil pressure, it does not start. When oil pressure switch closes the unit will start.