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NOVAR 2600 Operating Manual

6.2.2 Modbus-RTU Communications Protocol

For the chance of easier integration of the instrument to the user's program, the instrument is also
equipped with the Modbus - RTU communications protocol. A detailed description of the
communications records can be found in an appropriate manual.

6.3 Embedded Webserver

All of instruments with Ethernet remote communication interface are equipped with an embedded
webserver, thus both all of main measured values and the instrument setting can be viewed with a
standard web browser. It requires to set properly the instrument remote communication parameters
and to connect it to the network. Then in the web browser enter appropriate IP-address of the
instrument and information from the instrument appears as shown on Fig. 6.1.

Fig. 6.1.: Webserver

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Содержание NOVAR 2600

Страница 1: ...420 485 130 314 fax 420 482 736 896 email kmb kmb cz internet www kmb cz NOVAR 2600 Three Phase Power Factor Controllers Power Analyzers Operating Manual Document revision Release date Valid for versi...

Страница 2: ...etup 13 3 1 1 1 Setup Example 14 3 1 2 PFC Setup 15 3 1 2 1 PFC Control Setup 15 3 1 2 2 PFC Output Setup 15 3 1 2 3 AOR Process 15 4 PFC BLOCK 17 4 1 Basic Functions 17 4 2 Manipulation and Setting 1...

Страница 3: ...perations Exceeded Alarm 39 4 3 3 4 OE Output Error Alarm 39 4 3 3 5 T1 T2 Temperature Exceeded Drop Alarm 40 4 3 3 6 OoC Out of Control Alarm 41 4 3 3 7 RCF Remote Control Failure Alarm 41 4 3 4 Cont...

Страница 4: ...3 Harmonics and THD Evaluation Method 69 5 3 2 Power Power Factor and Unbalance Evaluation Method 69 5 3 2 1 Temperature 71 5 3 3 Measured Values Evaluation and Aggregation 71 5 3 3 1 Actual Values Ev...

Страница 5: ...NOVAR 2600 Operating Manual 8 MANUFACTURED MODELS AND MARKING 89 9 TECHNICAL SPECIFICATIONS 90 10 MAINTENANCE SERVICE 96 5...

Страница 6: ...hree phase control only three independent single phase controls up to 18 output sections relay or solid state controller s speed of response independently programmable for conditions of undercompensat...

Страница 7: ...ometer Design 144x144 mm plastic box for panel mounting LCD graphic display 5 keys digital input 7 16 output models only optional input for external Pt100 temperature sensor Communication Selected Mod...

Страница 8: ...ously Fig 1 1 NOVAR 2600 Block Diagram After an activation of supply voltage the instrument accomplishes internal diagnostics updating of internal database of measured data and then it starts to measu...

Страница 9: ...f connection is generally free but for maximum electromagnetic compatibility the grounded pole should be connected to the terminal AV2 The supply voltage must be connected via a disconnecting device s...

Страница 10: ...re designed for indirect current measurement via external CTs only Proper current signal polarity S1 S2 terminals must be observed You can check the polarity by the sign of phase active powers on the...

Страница 11: ...dden Otherwise the instrument can be damaged Respect maximum voltage and current rating see technical specifications The transistor outputs must be powered from the switching module s power supply or...

Страница 12: ...ing maximum allowable may cause the instrument damage 2 2 5 External Temperature Sensor Some models are equipped with the EXT TEMP external temperature sensor connector for measurement of external tem...

Страница 13: ...s if used nominal voltage UNOM and nominal frequency fNOM INOM PNOM not mandatory but recommended 3 1 1 Measured Electrical Quantities Installation Setup For the proper data evaluation it is necessary...

Страница 14: ...ase line voltage 3 1 1 1 Setup Example Following example explains how to adjust the CT ratio Assuming that the conversion of used CT for inputs of current L1 to L3 is 750 5 A To edit the parameters pr...

Страница 15: ...tion further below Now you can finally set output types and sizes The most comfortable way to do this is by using Automatic Output Recognition AOR process scroll to Recognizer and edit its value to Ru...

Страница 16: ...minimums at least in one of phases the instrument starts to control power factor to preset value If the undercurrent I alarm was disabled for the AOR process to be able to pass without any load in the...

Страница 17: ...o preset the THD and the CHL threshold levels at which the controller disconnects all compensation sections thus preventing their damage Besides that the most adverse values are recorded into the inst...

Страница 18: ...too Its state is indicated as follows inactivated digital input activated digital input 4 2 1 2 Outputs State Additional Information Icons bear additional information of particular outputs Firstly the...

Страница 19: ...d icons fixed output permanently off Such outputs are not used for power factor control 4 2 1 3 Power Factor Gauges For permanent and easy survey of actual power factor both individual phase L1 L2 L3...

Страница 20: ...non zero reactive power value is preset the C 0 message is displayed instead During all of the situations above the power factor control cannot be executed and the controller gets into the Standby mo...

Страница 21: ...l deviation difference between fundamental harmonic reactive power and target reactive power corresponding to preset target power factor cos tan fundamental harmonic power factor in form of cos tan or...

Страница 22: ...ontrol state control process in progress balanced state control time inactive the controller in control state control process in progress unbalanced state actual control time counter state is displaye...

Страница 23: ...s 4 2 1 9 1 Multifunction button When the button pressed a pull up menu rolls over the display temporary By multiple fast pressing of the button a desired action can be selected and after the button b...

Страница 24: ...lex instruments their presetable parameters are for better orientation hierarchically arranged into several groups that are accessible in standard way via main menu But during power factor control sys...

Страница 25: ...bandwidth is constant and corresponds to the OMIN value reactive power of the minimum output the band follows the power factor slope specified at width OMIN 2 On high loads zone C the bandwidth incre...

Страница 26: ...r the following conditions instantaneous power factor is either more inductive than the value required undercompensated or more capacitive overcompensated the difference between reactive power instant...

Страница 27: ...certain circumstances the second set of parameters for tariff 2 is used as well The parameter can be set to Off the controller uses tariff1 parameters set only the tariff 2 set parameters are irrelev...

Страница 28: ...ne of following options 3p three phase power factor control only is controlled regardless single phase power factor values 3p 1p both three phase power factor and individual single phase power factors...

Страница 29: ...that the choke control limit power factor parameter setting affects the control operation too see below If the mixed mode set a choke is connected under the following circumstances controller has dis...

Страница 30: ...essary to control shifted by a certain value of reactive power A typical example is an installation of a power transformer compensating capacitor permanently connected to the transformer before the co...

Страница 31: ...group Each of the rows corresponds to particular output and contains the output number 1 1 1 9 for the output group 1 2 1 2 9 for the output group 2 the output actual state and type in the form of th...

Страница 32: ...threshold temperatures On Temp and Off Temp must be specified Alarm the output is used for alarm signalling Then Active State on off must be specified If more outputs are set as alarm ones the output...

Страница 33: ...0 discharge time set2 5 sec 20 min 20 sec Displayed when output set is set only switching mode intelligent linear circular intelligent automatic output recognizer AOR starting auto 0 auto 4 3 2 2 Dis...

Страница 34: ...connected compensation section s is are disconnected This mode is determined for harmonic filters control It is strongly recommended not to activate linear switching mode at standard power factor com...

Страница 35: ...n use the manual output type power filer Fig 4 10 Manual Filler After entering the tool in the window you can set the output type and minimum nominal output reactive power OMIN then select one of pred...

Страница 36: ...ars the active indication alarm is framed for example for the undercurrent alarm if any of outputs is set as alarm output see the output control state setup description above all of affected alarm out...

Страница 37: ...ed sections not affected by actuation PF PF control failure PF control deviation out of contr b width Qfh QfhAVG 1 sec 20 min QfhAVG 5 min I indication only NS number of switching operations exceeded...

Страница 38: ...d of the quantity or corresponding average value ULNAVG see description in the meter block part of this manual is used for the alarm condition evaluation delay minimum duration of continuous alarm con...

Страница 39: ...hese alarms have special common features actuation reaction time is 20 ms fixed affected outputs are disconnected immediately during 20 milliseconds and all at once not step by step deactivation delay...

Страница 40: ...controller detects the output phase power size approximately lower than 3333 700 2633 vars or higher than 3333 700 4033 vars it classifies the output power out of tolerance If preset number of consec...

Страница 41: ...deactivated immediately 4 3 3 7 RCF Remote Control Failure Alarm This alarm will serve for remote control problem signalling in future Now it is not functional 4 3 4 Control Manual State Indicator and...

Страница 42: ...e undercomp 1 2 3 minutes control time overcomp 1 2 30 seconds offset power 1 2 0 kvars tariff 2 control off tariff 2 control power 0 control strategy 3p 1p choke control off choke control limit cos 1...

Страница 43: ...r testing purposes 4 4 1 Control State In the control state the controller carries out its standard task the power factor control process The process consists of three basic steps performed over and o...

Страница 44: ...ate of the outputs stay unchanged They are restored into this state even after a power failure But the outputs can be temporarily switched off due to any alarm actuation if appropriate event occurs Du...

Страница 45: ...ted output Then the instrument waits until discharge time of the outputs just disconnected expires such undischarged outputs can be identified with decreasing shadow filling During this Output 1 1 mes...

Страница 46: ...nterrupted at any point either manually by pushing the button or by any of alarm actuations In such case the recognized data are neglected and output setting is not updated On completion of the total...

Страница 47: ...mply let the timeout to expire and then the CT test starts The CT test window shows information about individual phase current inputs connection At the beginning of the test following message is shown...

Страница 48: ...rrect polarity move wires to the previous phase current input keep the polarity R wrong phase reverse polarity swap the wires and move them to the next phase current input R wrong phase reverse polari...

Страница 49: ...ly to the fixed off state to force the controller to use other outputs with higher power compensation elements connected to the first control outputs are not single phase or three phase capacitors try...

Страница 50: ...must be connected together with the U1 Be careful not to exceed maximum input voltage according the technical parameters when the 1D3 connection type Take into account that the network line to line v...

Страница 51: ...erent phase than current or the voltage and current signal with opposite polarity there exists phase shift between the voltage and the current signals even at power factor equal to 1 Controller must r...

Страница 52: ...is not in the standby state due to any of alarms The process can be started manually too You can launch it not only in the control state but in the manual state as well For this in the Installation pa...

Страница 53: ...uccessful steps with the same results and the question mark repeat frequently the most likely cause is incorrectly set connection type Check it and try to start the process again Ongoing ACD process c...

Страница 54: ...ses 4 4 5 3 Operation Behaviour of the controller in the single phase mode differs from the standard in I2 and I3 currents are not measured their THDI and harmonic components are not evaluated powers...

Страница 55: ...each preset target power factor If the value is positive inductive character the controller connects compensation capacitors of appropriate power to the network if negative capacitive character the co...

Страница 56: ...urrent flowing through a capacitor forms as the sum of current harmonic component vectors Ic i 1 n Ii A and magnitude of each harmonic component is pursuant to the first formula Ii 2 fiC Ui 2 f f i C...

Страница 57: ...le 3 CHL 133 corresponds to voltage harmonic distortion limits as specified in EN 50160 4 4 6 5 RC RL Compensation Reserve Powers to Reach Target Power Factor With the compensation reserve powers RC a...

Страница 58: ...setup 3 Switch to the general meter actual values and scroll to three phase power values Push the button until 3dQ 3RL 3RC option is selected then window with actual three phase control deviation and...

Страница 59: ...ected Then perform the reserve check as described above set target power factor only but let all of the compensation outputs set as zero outputs and switch the controller into the manual state After o...

Страница 60: ...oo and a separate archive dedicated for automated meter readings can record actual status in preselected intervals Optionally the instruments can be equipped with battery backed real time circuit addi...

Страница 61: ...d weekly graphs of main quantities Electricity meter data group electric energy and maximum demand values Instrument setting presetable parameters Instrument lock Information instrument type serial nu...

Страница 62: ...ase three phase real power factor cos 3cos single phase three phase fundamental harmonic power factor P Q S D active reactive apparent distortion power Pfh Qfh fundamental harmonic active reactive pow...

Страница 63: ...PNOM 5 2 2 2 Daily and Weekly Graphs This option is supported by instrument models equipped with RTC additional memory only A one week history of main measured quantities such as voltages currents po...

Страница 64: ...oup are explained in chapter Measured Electrical Quantities Installation Setup above the Commissioning part 5 2 2 4 3 Clock Setting This setting is relevant for instrument models equipped with a real...

Страница 65: ...arity Set to 8 for KMB protocol for Modbus usually set to 9 Stop Bits Set usually to 1 Ethernet interface DHCP activation of dynamic IP address allocation IP Address Internet protocol address Subnet M...

Страница 66: ...tate The admin locked state is indicated with the A character inside the lock icon Warning Store the admin password code at the secure place to be able to unlock the instrument later in case the code...

Страница 67: ...nd to a service organization 4 16 RTC error in the time setup window or better with the ENVIS program if possible set actual date time if the error appears again send the instrument to a service organ...

Страница 68: ...a base for all other calculations The sampling of all voltage and current signals is executed together with the frequency of 128 96 samples per mains cycle The sampling rate is adjusted according to...

Страница 69: ...ding to IEC 61000 4 7 ed 2 as harmonic sub groups Hsg Following quantities are evaluated Harmonic components of voltage and current up to 50th order Uih1 Iih1 i order of harmonic component Absolute an...

Страница 70: ...ental harmonic three phase power factor cos cos arctg Qfh Pfh Powers and power factors of the fundamental harmonic component cos are evaluated in 4 quadrants in compliance with the standard IEC 62053...

Страница 71: ...y are measured and updated each approx 10 seconds 5 3 3 Measured Values Evaluation and Aggregation As described above measured values are evaluated according to IEC 61000 4 30 ed 2 based on continuous...

Страница 72: ...meric format and expressed in amperes their values are extended with a sign The sign indicates if a current phasor of appropriate harmonic is delayed after its voltage phasor positive value or if the...

Страница 73: ...ppears On the left of each maximum value its time stamp is displayed The symbol after the time data means that the displayed value is maximum You can display minimum average values in similar way The...

Страница 74: ...phase and three phase energies are processed In addition at selected models three phase energies are evaluated in three preset tariff zones time of use The actual tariff can be controlled either by an...

Страница 75: ...egistered since last clearing up to now total for all tariff zones t appear imported active energy I exported active energy E imported reactive energy inductive L and exported reactive energy capaciti...

Страница 76: ...t The X index depends on the evaluation interval preset value D day W week M month Q quarter Y year In the 3rd row there is maximum of the 3AD reached during just passing evaluation interval 3MDCX C c...

Страница 77: ...ation link is called Local 6 1 2 Remote Communication Links The instruments may be optionally equipped with the remote communication link for operation of the instrument via a remote computer Subseque...

Страница 78: ...rs especially at high communication rates and long distances Terminating resistors are only installed on the final points of the link for example one on the PC and another on the remotest instrument T...

Страница 79: ...manual 6 3 Embedded Webserver All of instruments with Ethernet remote communication interface are equipped with an embedded webserver thus both all of main measured values and the instrument setting...

Страница 80: ...NOVAR 2600 Operating Manual 7 Examples of Connections NOVAR 2600 Typical Installation TN Network Direct Star 3Y Connection 18 Contactor Sections 80...

Страница 81: ...NOVAR 2600 Operating Manual NOVAR 2600 R16 Typical Installation TN Network Direct Star 3Y Connection 14 Contactor Sections 2nd Tariff Control Fan Alarm 81...

Страница 82: ...NOVAR 2600 Operating Manual NOVAR 2600 T18 Typical Installation 82...

Страница 83: ...NOVAR 2600 Operating Manual NOVAR 2600 T7 Typical Installation 83...

Страница 84: ...al NOVAR 2600 Measured Signal Connection Examples Three Phase Connections 84 TN Network Direct Star 3Y Connection IT Network Direct Delta 3D Connection TN Network Star 3Y Connection via VT IT Network...

Страница 85: ...Three Phase Networks 85 TN Network 1Y3 Connection Type recommended wiring TN Network 1Y3 Connection Type IT Network Delta 3D Connection via VT VT to Line to Neutral Primary Voltage IT Network Delta 3...

Страница 86: ...AR 2600 Power Supply Options 86 IT Network 1Y3 Connection Type IT Network 1D3 Connection Type Line to Neutral Voltage AC Power Supply Line to Line Voltage AC Power Supply DC Power Supply NOTE MAXIMUM...

Страница 87: ...NOVAR 2600 Operating Manual NOVAR 2600 T External Temperature Sensor Connection 87...

Страница 88: ...NOVAR 2600 Operating Manual NOVAR 2600 4 RS485 Remote Communication Connection 88...

Страница 89: ...NOVAR 2600 Operating Manual 8 Manufactured Models and Marking 89...

Страница 90: ...uring range UL N 10 625 VAC measuring range UL L 20 1090 VAC measuring uncertainty tA 23 2 C 0 05 of rdg 0 02 of rng temperature drift 0 03 of rdg 0 01 of rng 10 C measurement category 300V CAT III 60...

Страница 91: ...armonics up to 50th order reference conditions other harm up to 1000 of class 3 acc to IEC 61000 2 4 ed 2 measuring range 500 of class 3 acc to IEC 61000 2 4 ed 2 measuring uncertainty Ih 10 INOM 1 IN...

Страница 92: ...cos uncertainty 0 005 reference conditions B ambient temperature tA U I for active power PF cos for reactive powe 23 2 C U 80 120 UNOM I 1 120 INOM PF 0 87 PF 0 87 act react power uncertainty 1 of rdg...

Страница 93: ...UNOM v3 PFA PFV power factor 0 5 0 1 Pst Plt flicker 5 0 4 10 1 2 Udip voltage dips 0 5 0 05 1 UNOM 2 Uswl voltage swells 0 5 1 1 2 UNOM 2 Utr transients overvoltage Uint voltage interruption 1 0 0 0...

Страница 94: ...energy function performance class 0 5 Outputs Digital Input Relays R output type models type N O contact load rating standard models 250 VAC 4 A H models 250 VAC 4 A 110 VDC 0 5 A 220 VDC 0 2 A Trans...

Страница 95: ...N 55011 class A EN 55022 class A not for home use RTC option accuracy 2 seconds per day backup battery capacity 5 years without supply voltage applied local communication port option USB 2 0 remote co...

Страница 96: ...ust be in proper packaging to prevent damage during transit A description of the problem or its symptoms must be delivered together with the product If a warranty repair is claimed the warranty certif...

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