User Manual - Datakom Iraq
Contents
1. signal A closed to open transition on the SYNCHRONIZATION CHECK ENABLE input will cause the SYNCH RELAY to deenergize and the synchronization checking to terminate The synch checking may also be initiated or terminated manually by depressing the SYNCH pushbutton Once the SYNCH CHECK relay is energized further synchronization checking may be enabled or disabled following the value of the program parameter P_09 If the synchronization checking is disabled after closing the SYNCH CHECK relay the relay output will not deenergize even if the paralleling contactor fails to close It is the responsibility of the panel builder to use a quickly closing contactor DKG 117 User Manual V 02 26 04 2007 5 OTHER FEATURES 5 1 Synchronization Checking The unit will check the synchronization only when both genset and busbar phase voltages are within programmed limits and the synchronization is enabled either with the SYNCHRONIZATION CHECK ENABLE signal or the SYNCH pushbutton If both busbar and genset phase voltages are within programmed limits then the synchroscope will illuminate The synchroscope will show the phase angle between busbar and genset phase The synchronization checking consists of the verification of below conditions during 4 consecutive busbar cycles the busbar phase voltage should be between limits set by P_00 and P_01 the genset phase voltage should be between limits set by P_02 and P_03 the frequency difference between2. the busbar and genset should not exceed the limit set by P_04 the voltage difference between the busbar and genset phases should not exceed the limit set by P_05 the phase angle between the busbar and genset phase should not exceed the limit set by P_06 If both above conditions are satisfied for 4 consecutive busbar cycles then the CHECK SYNCH relay will be immediately energized WARNING If the synchronization is lost after the CHECK SYNCH relay is operated the relay will not release It is the responsibility of the panel builder to use a quickly closing contactor 5 2 Dead bus enable It may be required from a genset to close on an unpowered bus dead bus This is especially the case for multi genset synchronization systems where one of the gensets must feed the busbar in order to serve other gensets as a reference for synchronization When active the DEAD BUS ENABLE input signal will force the SYNCH relay to close when both of below conditions are met synchronization checking enabled either via or pushbutton the genset phase voltage is within limits set by P_02 and P_03 the busbar voltage is below the limit set by P_00 Please note that if the busbar voltage is above the set limit the SYNCH CHECK relay output will not close even if the DEAD BUS ENABLE signal is active This feature is installed in order to prevent an eventual non synchronized closing of the paralleling contactor 5 3 Pre synchronization d
3. DKG 117 User Manual V 02 26 04 2007 D DATAKOMIRAQ DKG 117 SYNCHROSCOPE AND CHECK SYNCH RELAY DATAKOM DKG17 FEATURES MEASUREMENTS 24 led circular synchroscope Generator Volt U N Programmable AV Af for check synch Generator Frequency relay Busbar Volts R N 1 phase genset voltage input Busbar Frequency 1 phase busbar voltage input Frequency difference busbar generator Synch Check Enable input Voltage difference busbar generator Dead Bus Enable input Phase angle busbar phase U Auto power off Adjustable parameters Front panel configurable Survives cranking dropouts LED displays Sealed front panel Plug in connection system for easy replacement Small dimensions 72x72x52mm Low cost DKG 117 User Manual V 02 26 04 2007 TABLE OF CONTENTS Section 1 of ON INSTALLATION 1 1 Introduction to the Control Panel 1 2 Mounting the Unit 1 3 Wiring the Unit INPUTS AND OUTPUTS DISPLAYS 3 1 Led Displays 3 2 Digital Display OPERATION OTHER FEATURES 5 1 Synchronization checking 5 2 Dead bus enable 5 3 Pre synchronization delay PROGRAMMING TROUBLESHOOTING DECLARATION OF CONFORMITY TECHNICAL SPECIFICATIONS 0 CONNECTION DIAGRAM DKG 117 User Manual V 02 26 04 2007 1 INSTALLATION 1 1 Introduction to the Control Panel The unit is a display and control module used in manual synchronization and protection panels It monitors the vo
4. e limits with a hysteresis feature in order to prevent faulty decisions For example when the busbar is present the busbar voltage low limit will be used as the programmed low limit P_000 When the busbar fails the low limit will be used as P_000 P_007 It is advised to set this value to 8 volts 8 Pre synchronization delay sec 3 This is the time after the genset phase voltage is within the limits set with parameters P_002 and P_003 and the synchronization checking is enabled 9 Synchronization checking 0 0 further synchronization checking is disabled at parallel when the SYNCH CHECK relay is energized 1 synchronization checking is always performed DKG 117 User Manual V 02 26 04 2007 7 TROUBLESHOOTING AC voltages or frequency displayed on the unit are not correct Check engine body grounding it is necessary The error margin of the unit is 3 volts If there are faulty measurements only when the engine is running there may be a faulty charging alternator or voltage regulator on the engine Disconnect the charging alternator connection of the engine and check if the error is removed If there are faulty measurements only when mains are present then the battery charger may be failed Turn off the battery charger fuse and check The unit is inoperative The unit may be in sleep mode Press any front panel key to wake up Measure the DC supply voltage betwee
5. elay Especially on engines without a body heater it may be desired that the genset should not take the load immediately after running The unit offers a timer controlled pre synchronization delay feature When the genset voltage is within the limits the engine will be allowed to run during parameter P_08 and then the synchronization checking will be enabled The default factory setting of this parameter is 3 seconds If a delay is not requested the parameter may be set to 0 DKG 117 User Manual V 02 26 04 2007 6 PROGRAMMING The program mode is used to program the timers and operational limits of the unit To enter the program mode press the MENU button for 5 seconds The program mode will not affect the operation of the unit Thus programs may be modified anytime even while the genset is running In program mode when the MENU key is pressed the display will show the program parameter number when the MENU key is released the display will show the program parameter value The first program number is 000 Each depression of the MENU key will cause the display to switch to the next program parameter After the last parameter the display switches back to the first parameter The displayed parameter value may be increased or decreased using A and W keys If these keys are hold pressed the program value will be increased decreased by steps of 10 Program parameters are kept in a non volatile memory and are not affec
6. hecking may also be initiated or terminated manually by depressing the SYNCH pushbutton GENSET PHASE U Generator phase input 0 300V AC Connect the generator phase to this input The generator phase voltage upper and lower limits are programmable UNUSED No connection Please leave open 10 GENERATOR NEUTRAL Input 0 300V AC Neutral terminal for the generator phase 11 BUSBAR NEUTRAL Input 0 300V AC Neutral terminal for the busbar phase 12 UNUSED No connection Please leave open 13 BUSBAR PHASE R Busbar phase input 0 300V AC Connect the busbar phase to this input The busbar voltage upper and lower limits are programmable DKG 117 User Manual V 02 26 04 2007 3 DISPLAYS 3 1 Led Displays The unit has 30 LEDs divided in 4 groups Group_1 Synchronoscope this group indicates the instantenous phase angle of the genset voltage with reference to the busbar voltage When both networks are in synchronization the upper center yellow led with 0 mark will illuminate When the genset frequency is higher then the busbar frequency then the synchroscope will turn in the clockwise direction When the genset frequency is lower then the busbar frequency then the synchroscope will turn in the counter clockwise direction Group 2 Status This group indicates the current status of the busbar genset voltages and the synchronization checking statu
7. ltage and frequency of 2 independent power networks and shows the measured values on its 3 digit digital display The 24 led circular synchroscope indicates the true instantenous phase angle between the networks The synchronization may be made between a genset and a genset busbar or between a genset busbar and mains The unit is designed to provide user friendliness for both the installer and the user Programming is usually unnecessary as the factory settings have been carefully selected to fit most applications However programmable parameters allow complete control over the operation Programmed parameters are stored in a Non Volatile Memory and thus all information is retained even the event of complete loss of power The measured parameters are Genset voltage phase U to neutral Genset frequency Busbar voltage phase R to neutral Busbar frequency Frequency difference busbar genset Voltage difference busbar genset Phase angle busbar genset 1 2 Mounting the Unit 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 The unit fits into a standard panel meter opening of 68x68 millimeters Before mounting remove the retaining steel spring and connectors from the unit then pass the unit through the mounting opening The unit will be maintained in its position by the steel spring Engine body must be grounded for cor
8. m minimum Mounting Front panel mounted with rear retaining steel spring Weight 130 g approx Case Material High Temperature ABS UL94 V0O 100 C 11 DKG 117 User Manual V 02 26 04 2007 10 CONNECTION DIAGRAM BUS 4 DKG 117 ajqeuy youAs sng Battery Negative must be grounded GEN DATAKOMIRAQ Turkey Baghdad Tel 00964 770 641 71 57 Eng Salam e mail info datakomirag com Tel 0090 212 533 3223 website www datakomirag com 0090 212 533 2155 00964 770 263 85 85 07901 326 302 12
9. n terminals 5 and 6 at the rear of the unit If OK turn all the fuses off then turn all the fuses on starting from the DC supply fuse Then test the unit again 8 DECLARATION OF CONFORMITY The unit conforms to the EU directives 73 23 EEC and 93 68 EEC low voltage 89 336 EEC 92 31 EEC and 93 68 EEC electro magnetic compatibility Norms of reference EN 61010 safety requirements EN 50081 2 EMC requirements EN 50082 2 EMC requirements The CE mark indicates that this product complies with the European requirements for safety health environmental and customer protection 10 DKG 117 User Manual V 02 26 04 2007 9 TECHNICAL SPECIFICATIONS Generator voltage 300 V AC max Ph N Generator frequency 0 100 Hz Busbar voltage 300 V AC max Ph N Busbar frequency 50 60 Hz Digital inputs 0 30 V DC Internally connected to battery positive via 4700 ohm resistor DC Supply Range 9 0 to 33 0 V DC Cranking dropouts survives 0 V for 100ms Typical Standby Current 100 mA DC Maximum Operating Current 150 mA DC Relay outputs open Check Synch Relay Output 10 A 28V DC Operating temp 20 C 4 F to 70 C 158 F Storage temp 30 C 22 F to 80 176 Maximum humidity 95 non condensing IP Protection IP65 from front panel IP30 from the rear Measurement category CAT II Air category Pollution degree 1 Dimensions 72 x 72 x 52 mm WxHxD Panel Cut out Dimensions 68x68 m
10. nerator paralleling contactor If the genset phase voltage is not within programmed limits or if the genset phase voltage frequency and phase angle are not within the programmed limits compared to the busbar this relay will not be energized If the busbar is not powered up synchronization checking may be overridden with the DEAD BUS ENABLE input signal The relay output is rated to 10Amps 28VDC Do not connect to AC voltages DEAD BUS ENABLE This input will be driven by a normally open contact switching to battery when active If the signal is active the unit will be allowed to close the relay output when the voltage level at the busbar input is below the set limit See programming section for more details on level setting GROUND O VDC Power supply negative connection BATTERY POSITIVE 12 or 24VDC The positive terminal of the DC Supply shall be connected to this terminal The unit operates on both 12V and 24V battery systems SYNCHRONIZATION CHECK ENABLE This input will be driven by a normally open contact switching to battery when active If the signal is active the unit will be allowed to close the relay output when the synchronization conditions are met Otherwise it will not close the relay This input may be hard wired to battery negative for the fastest synchronization A closed to open transition on this input will cause the SYNCH RELAY to deenergize The synchronization c
11. ng the SYNCH pushbutton or with the SYNCHRONIZATION CHECK ENABLE signal input UNIT GROUP Red This group indicates the unit of the value displayed in the digital display Different values may be scrolled by pressing the MENU key DKG 117 User Manual V 02 26 04 2007 3 2 Digital Display The unit has a three digit seven segment display It shows Measured parameters Parameter names Program parameters The navigation between different parameters is made with the MENU pushbutton When the MENU key is hold pressed the parameter name will be displayed By pressing the MENU key below values may be displayed U1 busbar phase to neutral voltage U2 genset phase to neutral voltage dU voltage difference between busbar and genset phases F1 busbar frequency F2 genset frequency dF frequency difference between busbar and genset deg phase angle between busbar and genset phases degrees 4 OPERATION The unit is designed for continuous operation from the genset battery voltage 12 or 24 volts DC It will shut off its displays in 1 minute if there is no voltage at the AC inputs and if no key is pressed It will power up automatically when voltage is applied to either genset or busbar voltage input or any front panel pushbutton is depressed The synchroscope display will illuminate automatically if both genset and busbar phase voltages are within their programmed limits Otherwise the synchroscope will t
12. rect operation of the unit otherwise incorrect voltage and frequency measurements may occur DKG 117 User Manual V 02 26 04 2007 1 3 Wiring the Unit WARNING THE UNIT IS NOT FUSED Use external fuses for Generator phase U Busbar phase R Battery positive BAT Install the fuses as nearly as possible to the unit in a place easily accessible for the user The fuse rating should be 6 Amps WARNING ELECTRICITY CAN KILL ALWAYS disconnect the power BEFORE connecting the unit ALWAYS remove the plug connectors when inserting wires with a screwdriver ALWAYS refer to the National Wiring Regulations when conducting installation An appropriate and readily accessible set of disconnection devices e g automatic fuses MUST be provided as part of the installation The disconnection device must NOT be fitted in a flexible cord The building mains supply MUST incorporate appropriate short circuit backup protection e g a fuse or circuit breaker of High Breaking Capacity HBC at least 1500A Use cables of adequate current carrying capacity at least 0 75mm and temperature range DKG 117 User Manual 2 INPUTS AND OUTPUTS V 02 26 04 2007 Term Function Technical data Description 1 CHECK SYNCH RELAY COMMON TERMINAL CHECK SYNCH RELAY NORMALLY OPEN TERMINAL CHECK SYNCH RELAY NORMALLY CLOSED TERMINAL Relay output 10A DC These outputs provide energy to the ge
13. s 3 SYNCH This led will indicate the status of the SYNCH CHECK relay output 4 Unit This group indicates the unit of the value shown on the digital display Function Color Description SYNCHROSCOPE Red and Yellow When both busbar and genset voltages are within programmed limits the synchroscope will illuminate automatically Only one of the leds turns on at a time The led indicates the phase angle between the busbar phase and the genset phase U If the right hand side of the graph is illuminated this means that the genset phase is leading in advance the busbar If the left hand side of the graph is illuminated this means that the genset phase is lagging in retard A clockwise scrolling of the led graph means that the genset frequency is higher than the busbar frequency A counter clockwise scrolling of the led graph means that the genset frequency is lower than the busbar frequency GENERATOR Yellow The LED will turn off if the genset phase voltage is outside the set limits It will flash when the genset phase voltage is within the limits and the synchronization is not checked It turns on steadily when the synchronization is checked BUS Yellow The LED will turn on when the busbar voltage is within the limits SYNCHRONIZED Yellow The LED will turn on when the CHECK SYNCH relay is energized The synchronization checking may be initiated or terminated either manually by depressi
14. ted from power failures The program mode will be cancelled automatically after 20 seconds if no key is pressed Pgm Definition Unit Std Description teas If the busbar phase voltage goes under this 9 votada COn Limi 109 limit it means that the busbar is not energized Busbar Voltage High V 500 If the busbar phase voltage goes over this limit Limit it means that the busbar is not energized If the genset phase voltage goes under this limit it means that the genset is not running 2 Gen Voltage Low Limit V 180 If the genset phase voltage goes under this limit when the SYNCH CHECK output is energized it will deenergize immediately If the genset phase voltage goes over this limit it means that the genset is not running 3 Gen Voltage High Limit V 270 If the genset phase voltage goes over this limit when the SYNCH CHECK output is energized it will deenergize immediately 4 Frequency difference Hz 1 0 If the frequency difference between the busbar and the genset is above this limit then the synchronization will not be accepted 5 Voltage difference V 10 If the difference between the busbar and the genset phase voltages are above this limit then the synchronization will not be accepted 6 Phase angle deg 5 If the phase angle between the busbar and the genset phase voltages are above this limit then the synchronization will not be accepted 7 Hysteresis Voltage V 8 This parameter provides the busbar and genset voltag
15. urn off to prevent the display of irrevelant information The GEN led will turn off if the genset phase voltage is outside the set limits It will flash when the genset phase voltage is within the limits and the synchronization checking is disabled It turns on steadily when the synchronization checking is enabled Please check the PROGRAMMING section for limit setting The BUS led will turn off if the busbar phase voltage is outside the set limits It will turn on steadily if the busbar phase voltage is within the limits Please check the PROGRAMMING section for limit setting The synchronization checking is initiated either manually by depressing the SYNCH pushbutton or with the SYNCHRONIZATION CHECK ENABLE signal input If the synchronization checking is enabled the unit will be allowed to close the relay output when the synchronization conditions are met Otherwise it will not close the relay even if conditions are met The SYNCHRONIZATION CHECK ENABLE signal input may be hard wired to battery negative for the immediate synchronization after genset runs However a programmable pre synchronization delay P_08 may be inserted with the programming menu in order to allow the genset to stabilize or even to heat up if needed The synchronization checking is not timed The unit will continue checking the synchronization until the synchronization conditions are satisfied or the process terminated with the SYNCH key or the SYNCHRONIZATION CHECK ENABLE
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