ENGLISH User manual
Contents
1. 24 9 2 NOTES on MPPT Maximum Power Point 25 10 SERVICE A t 26 11998 Waranty CONGIIOMN eee m UU m 26 DES 26 EN 1 A 1 PRECAUTIONS AND SAFETY MEASURES The instrument has been designed in compliance with directive IEC EN61010 1 relevant to electronic measuring instruments Before and while carrying out measurements observe the following indications and read all notes preceded by the symbol with the utmost attention CAUTION In case the instrument is used in a way different from the one described in this user manual this could result in a failure of the protections the instrument is provided with Do not carry out any voltage or current measurement in humid environments e Do not carry out any measurements in case gas explosive materials or flammables are present or in dusty environments e Avoid contact with the circuit being measured if no measurements are being carried out e Avoid contact with exposed metal parts with unused measuring probes circuits etc e Do not carry out any measurement in case you find anomalies in the instrument such as deformation breaks substance leaks absence of display on the screen etc e Pay special attention when measuring voltages higher than 20V since a risk of electrical shock exists e Only use original accessories2. Set PV plant Set Instrument Select 4 3 2 Displaying the status of MPP300 by means of MASTER instruments of Type 2 In case the MASTER instrument is connected to MPP300 though USB cable it is possible to display the general parameters and obtain information about a possible error state of MPP300 STATUS LED red steady For a description of the error conditions please refer to the Message table in the User Manual of the MASTER instrument In GENERAL MENU select the Instrument informations icon and press ENTER key The herewith screen is shown by the instrument 12 09 2006 16 55 10 x Model MPP300 SN XXXXXXXX Hw xx Fw 1 xx Press ESC key or smart icon to back to GENERAL MENU screen EN 7 T 5 SETTINGS ON MASTER INSTRUMENTS Instructions are given according to the Type of instruments classified according to Table 2 Further in this manual a brief description is provided of the settings of the MASTER instrument for use together with MPP300 For an exhaustive description of the controls and functions of the MASTER instrument please refer to the User Manual of the instrument itself 5 1 MASTER INSTRUMENTS OF TYPE 1 REMOTE UNIT SETTINGS Turn on the instrument press the MENU key position the cursor onto SET by using the arrow keys A W and confirm with ENTER The display shows the screen which lists the different settings of the instrument 1 Position the cursor onto Remote Uni
3. steady not flashing on the display of SOLAR 02 b MASTER and REMOTE LEDs flashing green on unit MPP300 Connect the VDC1 and VDC1 inputs of the MPP300 unit to the output terminals of the string paying attention to the polarity and the colours indicated in Fig 4 or Fig 5 Repeat the operation described in the step above for other possible DC power trackers to be monitored by using the VDC2 and VDC3 inputs according to the number of DC inputs set see SOLAR300N user s manual EN 16 9 Connect the output connector of the DC clamp the IDC1 input of unit CAUTION BEFORE CONNECTING THE DC CLAMPS TO THE CONDUCTORS N Switch on the clamp check the LED indicating the status of the clamp s internal batteries if present select the correct range press the ZERO key on the DC clamp and check on the display of SOLARSOON the actual zeroing of the corresponding Idc value values up to 0 02A are acceptable 10 Insert the DC current clamp onto the positive output conductor of the string respecting the direction of the arrow found on the clamp itself as indicated in Fig 4 or Fig 5 Position the clamp toroid as far as possible from the inverter and from the negative output conductor of the string itself 11 Repeat the operations described in the two steps above for other possible DC power trackers to be monitored by using the IDC2 and IDC3 inputs according to the number of DC inputs s
4. 99 99k 0 01k 0 7 rdg 3401 So 10 FS 10 FS 100 0 00k 99 99k 0 01k 100 0k 999 9k 0 1k 0 0k 999 9k 0 1k 0 7 rdg 00k 99 Imeas gt 10 FS Vmeas voltage at which power is measured Imeas measured current EN 22 AY MPP300 8 2 REFERENCE STANDARDS Instrument safety IEC EN61010 1 Safety of measuring accessories IEC EN61010 031 Technical documentation IEC EN61187 Insulation double insulation Mechanical protection IP 40 Pollution level 2 Measurement category CAT III 1000V DC 1000V between DC inputs CAT IV 300V AC to earth max 600V between AC inputs 8 3 GENERAL CHARACTERISTICS Memory Memory capacity 2 MBytes Integration Period 9 10 30 60 120 300 600 900 1800 3600s Battery duration with SOLAR 02 approx 1 5 hours PI 5s approx 8 days PI 600s Characteristics of radio module Frequency range 2 400 2 4835GHz R amp TTE category Class 1 transmission power 30uW Max connection distance 1m 3911 Power supply Internal power supply Internal rechargeable LI ION battery 3 7V 1900mAh Battery duration gt 3 hours External power supply AC DC power supply 100 240VAC 50 60Hz 5VDC Mechanical characteristics Dimensions L x W x H 300 x 265 x 140mm 12 x 10 x 6in Weight batteries included 1 2kg 2lv 8 4 ENVIRONMENTAL CONDITIONS FOR USE Reference temperature 23 5 73 41 F Operating temperature 0 40 C 32 1
5. ENGLISH User manual Copyright HT ITALIA 2012 Version EN 2 00 xx xx 2012 AY MPP300 Table of contents 1 PRECAUTIONS AND SAFETY 50 6 2 1 1 Preliminary 41148 eic enc ee ee ee ee 2 1 2 3 20 gt UG cee 3 1 4 Definition of measurement overvoltage 3 2 GENERAL 4 deese mmm 4 22 Jette TUNIC HONS 4 3 PREFARAHNONPOR USE 5 2m HNIC Rm 5 3 2 Instrument power 5 CGU 5 2 10040 E E E E E 5 A OVER TEV 6 4 1 Instrument desctbllOf 6 4 2 Description of the indication 6 MASTER HS CUI E 6 4 3 1 Displaying the status of MPP300 by means of MASTER instruments of Type 1 7 4 3 2 Displaying the status of MPP300 by means of MASTER instruments of Type 2 7 5 SETTINGS ON MASTER INSTRUMENTS eem 9 5 1 MASTER instruments OF type 1 Remote unit 8 5 2 MASTER instruments OF type 2 Remote unit settings 8 6 OP
6. Ok In this way the settings made will remain valid also after turning off the instrument 3 To quit the settings made or to exit without saving press the ESC key or the smart icon 26 EN 8 6 OPERATING INSTRUCTIONS Further in this manual a brief description is provided of the use of MPP300 together with the MASTER instrument For an exhaustive description of the controls and functions of the MASTER instrument please refer to the User Manual of the instrument itself For the sake of simplicity further in this manual the word string will be used although often the term photovoltaic field would be more correct From the point of view of the instrument the management of a single string or of more parallel strings photovoltaic field is identical Furthermore the acronym MPPT Multiple Power Point Tracker shall indicate the characteristic of the DC AC converter inverter capable of maximizing the DC power which can be taken from the photovoltaic field the acronym PRp shall indicated the Performance ratio evaluated on active powers See 9 1 for further details ATTENTION For the evaluation of the PRP only the measurement of the DC voltage and current is not strictly necessary Conversely it is necessary if you want to evaluate the performance of the photovoltaic section ndc and DC AC conversion nac 6 4 PV SYSTEM TESTING FOR INSTRUMENTS OF TYPE 1 SOLAR l V 6 1 1 Te
7. In this manual and on the instrument the following symbols are used CAUTION observe the instructions given in this manual an improper use could damage the instrument or its components gt High voltage danger electrical shock hazard Double insulation DC voltage or current N 1 voltage or current Connection to earth 1 1 PRELIMINARY INSTRUCTIONS e This instrument has been designed for use in an environment with pollution level 2 and in the environmental conditions specified in 8 4 Do not use in different environmental conditions e We recommend following the normal safety rules devised to protect the user from dangerous currents and the instrument from an incorrect use The instrument may be used for measuring VOLTAGE in CAT Ill 1000V DC or CAT IV 300V AC to earth Do not use on systems exceeding the limit values specified in 8 e The instrument may be used for measuring CURRENT by means of external clamp transducers e Only original HT accessories guarantee safety standards They must be in good conditions and replaced with identical models when necessary e Before connecting the measuring cables to the circuit being measured check that the instrument has been correctly set EN 2 1 2 DURING USE Please carefully read the following recommendations and instructions CAUTION Failure to comply with the notes and or instructions may damage the instrument and or its compo
8. 1m press the GO STOP key on SOLAR l V to start testing Consequently e he display of SOLAR I V shows the message Rec start waiting e The display of SOLAR 02 shows the message HOLD and the time expressed in seconds remaining before the recording is started e On MPP300 the STATUS LED turns on green not flashing Rec Start Waiting Select MPP Iun EN 12 AY MPP300 21 Upon reaching the instant 00 after pressing the GO STOP 15 05 10 15 35 00 key the test is started and the three units are PRp synchronized with each other In these conditions Irr e The display of SOLAR 1 shows the message rec running e The display of SOLAR 02 shows the message 54 Recording e MPP300 the STATUS LED flashes green Rec running Select MPP 22 At any time it will be possible to analyze the current recording status by pressing the MENU key The following stari information will be shown 14 02 00 17 18 00 Period 5 e starting date and time of recording o In DER 54 e the value set for the integration period Rec time Od th e the number of periods elapsed from the beginning of the recording Reg in corso e the remaining memory capacity for recording Rec running Press the ESC key to exit the screen Select 23 Now it is possible to bring the unit SOLAR 02 near the PV strings to measure irradiation and temperature by means of the relevant probes When the distance between uni
9. 7 ON OFF key 8 Connector for external supply Fig 1 Description of the instrument s front panel 4 2 DESCRIPTION OF THE INDICATION LEDS GREEN steady MPP300 supplied by external power supply POWER flashing MPP330 supplied by internal batteries RED flashing Batteries of MPP300 almost flat GREEN steady MPP300 in synchronization phase before starting recording GREEN flashing MPP300 in recording phase STATUS RED flashing MPP300 memory full RED steady Internal error of MPP300 see S 4 3 1 and Message table in the User Manual of the MASTER instrument OFF MPP300 is NOT connecting to the MASTER unit OFF MPP300 is NOT connecting to unit SOLAR 02 Table 1 Description of the indication LEDs on 4 3 MASTER INSTRUMENT MPP300 may be controlled only by the following MASTER instruments MASTER instrument Instrumenttype Firmware Fw update SOLAR I V 1 RF connection 5 02 or higher Can be carried out by the user SOLAR 300N 2 USB connection 1 27 or higher Can be carried out by the user Table 2 Characteristics of the MASTER instruments CAUTION All controls are sent to the instrument via RF communication MASTER instrument of Type 1 or via USB port MASTER instrument Type 2 We recommend the user verifies that the software version Firmware in the MASTER instrument to which MPP300 should be connected is consistent with the indications given in Table 2 This information is present in the i
10. instrument carefully observe the recommendations listed in this manual in order to prevent possible damage or danger during use Do not use the instrument in environments with high humidity levels or high temperatures Do not expose to direct sunlight Always switch off the instrument after use 7 2 STATUS OF THE INTERNAL RECHARGEABLE BATTERIES The status of the POWER LED provides indications about the operating charge status of the instrument s internal rechargeable batteries POWER GREEN steady MPP300 supplied by external power supply GREEN flashing MPP330 supplied by internal batteries RED flashing Batteries of MPP300 almost flat CAUTION In case the LED indicates the condition of almost flat batteries we recommend connecting the instrument to power supply It is not necessary to stop possible measurements in progress to connect the power supply lf the instrument detects a too low battery voltage it stops possible recordings in progress and switches off The instrument maintains the data stored also in case of flat battery 7 3 CLEANING THE INSTRUMENT Use a soft and dry cloth to clean the instrument Never use wet cloths solvents water etc 7 4 OF LIFE CAUTION this symbol indicates that the appliance its accessories and the internal batteries must be collected separately and correctly disposed of 21 T MPP300 8 TECHNICAL SPECIFICATIONS 8 1 TECHNICAL SPECIFICATIONS FOR TEST ON PV SYSTEMS Unce
11. 04 Allowable relative humidity lt 80 HR Storage temperature 10 60 C 14 140 F Storage humidity lt 80 HR Max operating altitude 2000m 65621 Prescriptions for the use of the instrument at altitudes between 2000 and 5000m As regards inputs the instrument must be considered as downgraded to overvoltage category CAT 11 1000V DC and CAT 300V to earth max 1000V between inputs The marks and symbols found on the instrument are valid only when the instrument is used at altitudes lt 2000m 8 5 ACCESSORIES See the attached packing list EN 23 EN MPP300 9 APPENDIX THEORETICAL OUTLINE 9 1 TESTING PHOTOVOLTAIC SYSTEMS According to the requirements of the laws in force the result of the test depends on settings about Temperature effects compensation and PRp calculations see MASTER instrument settings Tcel PV Module Temp measured CEI 82 25 Italian Tcel Tamb NOCT 20 x a G Guideline Tcel PV module Temp calculated C src Tcel PV Module Temp measured 5 t 100 La 25 x 2 p n where Description 0000 Irradiance 1000 Nominal Power sum of all power module Pmax n included in the part of PV plant under test AC Active Power measured 2 if Tcel 40 C Thermal Corrective factor e H Tcel DAT Absolute value of Pmax ther
12. ERATING INSTRUCTIONS eee mmm nnne nens 9 6 1 PV system testing for instruments of Type 1 SOLAR 1 9 6 1 1 Testing of PV systems with single multi MPPT inverter single three phase AC output 9 6 2 PV system testing for instruments of 1 SOLAR 15 6 2 1 Testing of PV systems with single multi MPPT inverter single three phase AC output 15 Te MANTENAN O E ce E 21 r MEME G Dalee m mmm 21 7 2 Status of the internal rechargeable 21 rc Gleanng 21611 0 111 RR 21 LA OF 2 M n 21 TECHNICAL 5 22 8 1 Technical specifications for test on PV systems 22 Oo 51 11 11 1016 2 1 11 6 1 6 omen CHO Omen NR CN 23 8 3 General i Ee 23 8 4 Environmental conditions for use 23 ON secet 23 S 001 6 4 4 8 41655 43 24 9 1 Testing photovoltaic systems
13. On MPP300 the STATUS LED turns on green not flashing 21 Upon reaching the instant 00 after pressing the F1 key the test is started and the three units are 2 synchronized with each other In these conditions The display of SOLAR300N shows the icon b The display of SOLAR 02 shows the message Recording c On MPP300 the STATUS LED flashes green EN 18 MPP300 29106 2011 120453 Example of a DC screen for PV systems with 3 MPPTs Example of an AC screen for PV systems with three phase output F1 key SOLARSOON to start recording ef TOVOLTAIC MPP300 Pag 13 o omo o o e E MPP300 22 At any time while recording it will be possible to t5 07 201110 331105 onea analyze its current status by selecting the button 2 Saved data management in the GENERAL Date 15 07 2011 10 09 00 MENU The following information will be shown eae die a starting date and time of recording Autonomy 12 days 19 hours b the value set for the integration period c the number of periods elapsed from the beginning of the recording d the remaining memory capacity for recording Press the ESC key to exit the screen z wo 23 Now it is possible to bring the unit SOLAR 02 near the PV strings to measure irradiation and temperature by means of the relevant probes When the distance between unit SOLAR 02 and MPP300 does not allow the RF connection on the display of
14. SOLAR 02 the symbol flashes for approx 30s and then disappears Unit MPP300 steadily searches for the RF connection with unit SOLAR 02 24 Position the reference cell onto the surface of the PV modules Please refer to the relevant User Manual for a correct assembly 25 Put the temperature sensor in contact with the rear side of the module and fasten it with some tape prevent touching it with your fingers as this could alter the measure 26 Wait for a few seconds to allow the probes to reach a steady measure and then connect the irradiation probe to input PYRA CELL and the temperature probe to input TEMP of unit SOLAR 02 2 Wait for the message READY to appear on the display of SOLAR 02 to indicate that the unit has detected the data with solar irradiation gt minimum threshold set see SOLAR300N user s manual 28 With the message READY shown on the display wait for a time period at least equal to the set integration period see SOLARSOON user s manual in order to take a significant number of samples gt 2 29 Disconnect the irradiation and temperature probes from unit SOLAR 02 and bring the unit near unit The two units must be near each other max distance 1m 30 Connect if disconnected the SOLAR300N unit to the unit The MASTER LED must always be flashing to indicate the connection between SOLARSOON and 31 Press key W on SOLAR 02 to activate the RF connection
15. again Consequently the REMOTE LED on unit MPP300 will start flashing EN 19 T 32 stop recording press the GO STOP key on the instrument SOLAR300N and confirm with ENTER that 2 you want to stop recording 33 The display of SOLARSOON will show various messages indicating the different phases of data transfer to the main unit The transferred data will be saved automatically 34 After the automatic data transfer phase the instrument 0 787 3 98 kW 0 85 941 W m 5 000 kW 34 7 0 6 C gt Do not show any results if do not exist on the PV Example of a result combined installation a stable irradiance condition more with MPP300 than the minimum irradiance threshold see see users manual of MASTER instrument or all PRp values are not valid PRp gt 1 15 gt Display the best performance values if during the recording the Irradiance values reached the stable condition and its values were higher than the minimum irradiance threshold see user s manual of MASTER instrument 35 Press SAVE to save the obtained results Pressing the key will display the virtual keyboard for adding possible comments Further pressing the SAVE key will archive the measure and the added comments and will go back to the initial screen for a new measurement EN 20 P MPP300 7 MAINTENANCE 7 1 GENERAL INFORMATION The instrument you purchased is a precision instrument While using and storing the
16. am of the DC AC converter inverter Check and if necessary set the sensitivity of the reference cell SOLAR 02 consistently with the type of PV modules which will be measured please refer to the User Manual of SOLAR 02 We recommend making a preliminary evaluation of the value of irradiation on the surface of the PV modules being tested by means of unit SOLAR 02 operating independently and the reference cell Switch on SOLARSOON check and if necessary change the settings relevant to the type of remote unit to the minimum irradiation threshold to the full scale of the AC and DC clamps to the parameters of the system being measured and to the value of the integration period see SOLAR300N user s manual In order to guarantee the operators safety disable the system being measured by means of the switches breakers upstream and downstream of the DC AC converter Inverter Connect SOLARSOON to the MPP300 unit via the USB cable and bring SOLAR 02 and MPP300 nearer max distance approx 1 m All instruments must be switched on see the User Manuals of SOLAR 2 and MPP300 for further details The display of SOLARSOON must show for 5 seconds the message MPP300 connected On SOLARSOON access the GENERAL MENU select the function View Measures and press ENTER wait for the three units to start communicating with each other This condition is highlighted by the contemporary presence of the following indicators Symbol
17. and of the ac performance are consistent with the system being measured e g nac gt 1 is not physically acceptable EN 17 AY 18 On SOLAR300N press key F3 to access the second screen which contains the values of the output DC parameters of the strings according to the number of DC inputs set see SOLARSOON user s manual In particular in this screen Vdcx dc voltage of string x Idcx dc current of string x Pdx dc power of string x We recommend checking that the values of the electrical parameters Vdc are consistent with the system being measured 19 On SOLARSOON press key F4 to access the third screen which contains the values of the electrical parameters on the AC side of the inverter consistently with the settings made see SOLAR300N users manual single phase three phase 4 wires In particular in this screen Vacxy ac voltage between Phase and Neutral if single phase or between Phases x and y if three phase lacx ac current of phase x Pacx ac power of phase x We recommend checking that the values of the electrical parameters Vac lac Pac are consistent with the system being measured 20 Keeping the three instruments connected press the Consequently The display of SOLAR300N shows the icon t The display of SOLAR 02 shows the message HOLD and the time expressed in seconds remaining before the recording is started b
18. checking it to detect any damage possibly suffered during transport In case anomalies are found immediately contact the dealer We also recommend checking that the packaging contains all components indicated in 8 5 In case of discrepancy please contact the Dealer In case the instrument should be returned please follow the instructions given in 10 3 2 INSTRUMENT POWER SUPPLY The instrument only operates with a Li ION rechargeable battery 3 7V 1900mAh housed inside the instrument itself Use the external power supply 0055 provided to recharge the battery For indications on the status of the battery please refer to 7 2 The instrument maintains the data stored also in case of completely flat battery 3 3 CALIBRATION The instrument has the technical specifications described in this manual Its performance is guaranteed for 12 months from the date of purchase 3 4 STORAGE In order to guarantee precise measurement after a long storage time under extreme environmental conditions wait for the instrument to come back to normal condition see the environmental specifications contained in 8 4 EN 5 T 4 OVERVIEW 4 4 INSTRUMENT DESCRIPTION CAPTION Bp 3 1 DC voltage inputs 7 N 2 DC current inputs e N 4 3 AC voltage inputs 4 current inputs 5 Indication LEDs 8 6 USB connector only for 7 MASTER instruments of Type 2 see 4 3 S G
19. e reason why MPPTs are used is simple a photovoltaic system without MPPTs may operate anyway however with the same solar irradiation it provides less energy EN 25 10 SERVICE 10 1 WARRANTY CONDITIONS This instrument is warranted against any material or manufacturing defect in compliance with the general sales conditions During the warranty period defective parts may be replaced However the manufacturer reserves the right to repair or replace the product Should the instrument be returned to the After sales Service or to a Dealer transport will be at the Customer s charge However shipment will be agreed in advance A report will always be enclosed to a shipment stating the reasons for the product s return Only use original packaging for shipment any damage due to the use of non original packaging material will be charged to the Customer The manufacturer declines any responsibility for injury to people or damage to property The warranty shall not apply in the following cases e Repair and or replacement of accessories not covered by warranty e Repairs that may become necessary as a consequence of an incorrect use of the instrument or due to its use together with non compatible appliances e Repairs that may become necessary as a consequence of improper packaging e Repairs which may become necessary as a consequence of interventions performed by unauthorized personnel e Modifications to the instr
20. each characteristic curve there is one single point in which the power transfer towards a hypothetical charge supplied by the photovoltaic module is maximized The maximum power point corresponds to the voltage current pair for which the product V l is maximum where V is the value of voltage at the module s terminals and 1 is the current which runs in the circuit obtained by closing the module on a hypothetical charge With reference to the figure above the product is represented for the three solar irradiation values mentioned above through the three curves in thinner lines The figure shows that as stated above these curves only have one single maximum point For example for 1000W m the maximum power point corresponds to a voltage value of approx 36V and to a current value of approx 5 5A Obviously if the power provided by the system is maximized it is possible to make the most of the system both in case the system is connected to mains and in case it is stand alone is an inbuilt device in the inverters It typically reads the voltage and current values at any instant calculates their product i e the power in Watts and by causing small variations in the conversion parameters duty cycle it is capable of determining by comparison if the photovoltaic module is working in maximum power conditions or not According to the result it operates again on the circuit in order to bring the system to an optimal condition Th
21. es and ripple control units e Measurement category Ill is for measurements performed on installations inside buildings Examples are measurements on distribution boards circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use and some other equipment for example stationary motors with permanent connection to fixed installation e Measurement category Il is for measurements performed on circuits directly connected to the low voltage installation Examples are measurements on household appliances portable tools and similar equipment e Measurement category is for measurements performed on circuits not directly connected to MAINS Examples are measurements on circuits not derived from MAINS and specially protected internal MAINS derived circuits In the latter case transient stresses are variable for that reason the standard requires that the transient withstand capability of the equipment is made known to the user EN T 2 GENERAL DESCRIPTION 2 1 INTRODUCTION Dear Customer thank you for choosing one of the instruments in our range If used according to the instructions given in this manual the instrument you have just purchased will guarantee accurate and reliable measures The instrument is designed to guarantee maximum safety thanks to a newly conceived development which ensures double insulation and enables the
22. et see SOLAR300N user s manual 12 Connect the VAC1 and N inputs of unit MPP300 to the Phase and Neutral conductors respectively respecting the polarities and the colours indicated in in Fig 4 or Fig 5 In case of three phase systems in which no Neutral conductor is available connect input N to earth 13 In case of inverter with three phase output see SOLARSOON user s manual repeat the operation described in the step above for the remaining phases by using the VAC2 and inputs of MPP300 14 Connect the AC clamp to the Phase L1 conductor respecting the direction of the arrow found on the clamp itself as indicated in Fig 4 or Fig 5 Position the clamp toroid as far as possible from the inverter and from the Neutral conductor Connect the clamp output to the IAC1 input of MPP300 15 In case of inverter with three phase output see SOLARSOON user s manual repeat the operation described in the step above for the remaining phases by using the IAC2 and IAC3 inputs of MPP300 16 Restore the operation of the electrical system being measured 17 The display of SOLARSOON will show the values samemot112 02237 of the general electrical parameters of the system lf being measured PR In particular in this screen Pdc General dc power sum of the string powers Pac ac power if single phase or sum of the ac powers if three phase We recommend checking that the values of the electrical parameters Pnom Pac
23. ety while making the connections disable the system being measured by means of the switches breakers upstream and downstream of the DC AC converter inverter 1 Check and if necessary set the sensitivity of the reference cell on SOLAR 02 consistently with the type of PV modules which will be measured please refer to the user manual of SOLAR 02 2 We recommend making a preliminary evaluation of the value of irradiation on the surface of the PV modules being tested by means of unit SOLAR 02 operating independently and the reference cell 3 Switch on SOLAR I V check and if necessary change the settings relevant to the type of remote unit to the minimum irradiation threshold to the full scale of the AC and DC clamps to the integration period and to the parameters of the system being measured see the User Manual of SOLAR 1 4 In order to guarantee the operator s safety disable the system being measured by means of the switches breakers upstream and downstream of the DC AC converter inverter EN 10 Tl MPP300 5 Bring SOLAR I V SOLAR 02 and unit MPP300 nearer maximum distance of 1m between them All instruments must be switched on see the User Manuals of SOLAR 2 and MPP300 for further details 6 On SOLAR I V press the MENU key select the function EFF and press ENTER wait for the three units to start communicating with each other This condition is highlighted by the contemporary presence of the following indicat
24. ing to the number of DC inputs set see the User Manual of SOLAR 1 12 Connect the VAC1 and N inputs of unit MPP300 to the Phase and Neutral conductors respectively respecting the polarities and the colours indicated in Fig 2 or Fig 3 In case of three phase systems in which no Neutral conductor is available connect input N to earth 13 In case of inverter with three phase output see the User Manual of SOLAR 1 repeat the operation described in the step above for the remaining phases by using the VAC2 and VAC3 inputs of MPP300 14 Connect the AC clamp to the Phase L1 conductor respecting the direction of the arrow found on the clamp itself as indicated in Fig 2 or Fig 3 Position the clamp toroid as far as possible from the inverter and from the Neutral conductor Connect the clamp output to the IAC1 input of MPP300 15 In case of inverter with three phase output see the User Manual of SOLAR 1 repeat the operation described in the step above for the remaining phases by using the IAC2 and IAC3 inputs of MPP300 16 Restore the operation of the electrical system being measured EN 11 P MPP300 17 The display of SOLAR l V will show the values of the 15 05 10 15 34 26 general electrical parameters of the system being measured In particular in this screen Pdc General dc power sum of the string powers Pac ac power if single phase or sum of the ac powers if three phase We recommend checking that the
25. instrument to reach overvoltage category CAT III 1000V DC and CAT IV 300V AC to earth The instrument has been designed as an accessory for an instrument hereafter called the MASTER instrument see par 4 3 for the purpose of carrying out testing operations on single phase and three phase PV systems Together with a MASTER instrument MPP300 is the ideal solution for testing and analyzing the possible problems linked to possible low efficiency values of photovoltaic systems 2 2 INSTRUMENT FUNCTIONS The instrument has the following features Measurement of 3 DC voltages and currents Measurement of DC string power and total DC power Measurement of 3 AC TRMS voltages and currents Measurement of total AC power Measurement of irradiation W m by means of a reference cell connected to unit SOLAR 02 Measurement of panel and environmental temperature by means of probe PT300N connected to SOLAR 02 Testing of PV systems with single multi MPPT inverter single three phase AC output Parameter recording of a PV system with 5s to 60min programmable IP Internal memory for data saving RF USB interface for transferring the data to the MASTER instrument EN 4 3 PREPARATION FOR USE 3 1 INITIAL CHECKS Before shipping the instrument has been checked from an electric as well as mechanical point of view All possible precautions have been taken so that the instrument is delivered undamaged However we recommend
26. mal coefficient FC m Normal Operating Cell Temperature 800W m 20 C 119 C 1 5 vel Aria 1m s if Tcel gt 40 C gt Previous relationship are valid if Irradiance gt Min Irraddiance value see user manual of the MASTER instrument and the Irradiance values are steady if IP lt 1min gt Irr max Irr lt 20W m The final OUTCOME can be gt Non displayable if the obtained values are inconsistent e g gt 1 15 or if irradiation has never reached a steady value minimum threshold set see user s manual of MASTER instrument gt The maximum performance point PRp of the system The highest performance maximum value of PHp is detected according with previous relationships EN 24 nN MPP300 9 2 NOTES ON MPPT MAXIMUM POWER POINT TRACKER Solar irradiation on a surface such as the surface of a photovoltaic system has extremely variable characteristics since it depends on the position of the sun with respect to the surface and on atmospheric conditions typically on the presence of clouds A photovoltaic module presents for different solar irradiation values and for different temperature values a range of characteristic curves of the type shown in the following figure In particular the figure shows three I V curves in bold which correspond to three values 1000 800 600W m of solar irradiation Cell Temperature 25 C Current LAI Voltage LW On
27. nents or be a source of danger for the operator The red flashing POWER LED indicates that the internal rechargeable batteries are almost flat In this case connect the external power supply N as described in S 7 2 The IDC1 IDC2 IDC3 input connectors are type 4 pole type Use only clamps with 4 pin output connector or interpose adapter ACONSFAM between the clamp output connector and the instrument input The instrument maintains the data stored also in case of flat battery The instrument is particularly sensitive to ESD nearby and on the USB port while it is operating we recommend connecting the cables to the USB port when the instrument is off 1 3 AFTER USE When measurements are completed turn off the instrument by pressing and holding the ON OFF key for some seconds If the instrument is not to be used for a long time please follow the instructions given in S 3 4 1 4 DEFINITION OF MEASUREMENT OVERVOLTAGE CATEGORY otandard IEC EN61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements defines what measurement category commonly called overvoltage category is S 6 7 4 Measured circuits reads Circuits are divided into the following measurement categories e Measurement category IV is for measurements performed at the source of the low voltage installation Examples are electricity meters and measurements on primary overcurrent protection devic
28. nitial screen shown when switching on the MASTER instrument The results of the measurements carried out by MPP300 are sent to the MASTER instrument to which it is connected and shown on the master instrument s display All measures stored in the MASTER instrument s memory can be subsequently displayed and can be transferred to a PC EN 6 AY MPP300 4 3 1 Displaying the status of MPP300 by means of MASTER instruments of Type 1 In case the MASTER instrument is near MPP300 it is possible to display the general parameters and obtain information about a possible error state of MPP300 STATUS LED red steady For a description of the error conditions please refer to the Message table in the User Manual of the MASTER instrument 1 Position the cursor onto EFF by using the arrow keys 15 05 10 15 34 26 A V and confirm with ENTER The display shows the screen here to the side which contains the global trr parameters of the system es i GO start rec Select Press the ENTER key The instrument shows the 15 05 10 15 34 26 Es following options MPP300 status Set PV Plant and Set Power supply Batt Instrument Battery In use 2 Charge 99 Use the arrow keys A V to select MPP300 status and 25295 5 detected 3S confirm with ENTER The instrument shows the screen version 1 01 here to the side which indicates the main general 119109030 parameters of the instrument
29. onnection again Consequently the main unit will show the message radio connection activated EN 13 NATI MPP300 32 To stop testing press the GO STOP key on instrument 15 05 10 15 35 00 SOLAR l V and confirm with ENTER that you want to stop recording 33 The display of SOLAR l V will show the message DATA DOWNLOAD to indicate that the data will be transferred to the main unit during its various phases 34 After the automatic data transfer phase the instrument gt Do not show any results if do not exist on the PV installation a stable irradiance condition more than the Analysis Result minimum irradiance threshold see see user s manual of Els MPP Iwi MASTER instrument or all PRp values are not valid PRp gt 1 15 gt Display the best performance values if during the recording the Irradiance values reached the stable condition and its values were higher than the minimum irradiance threshold see users manual of MASTER instrument 35 Press SAVE to save the results or ESC to exit the screen of the results and go back to the initial screen 14 6 2 PV SYSTEM TESTING FOR INSTRUMENTS OF TYPE 1 SOLAR 300N 6 2 1 Testing of PV systems with single multi MPPT inverter single three phase AC output The instrument SOLARSOON used together with remote units SOLAR 02 and MPP300 optional allows carrying out long recordings on PV systems characterized by 1 or more PV fields
30. ors e Symbol steady not flashing on the display of SOLAR l V e Symbol 2 steady not flashing on the display of SOLAR 02 e MASTER and REMOTE LEDs flashing green on unit MPP300 7 Connect the VDC1 and VDC1 inputs of unit MPP300 to the output terminals of the string respecting the polarities and the colors indicated in Fig 2 or Fig 3 8 Repeat the operation described in the step above for other possible DC power trackers to be monitored by using the VDC2 and VDC3 inputs according to the number of DC inputs set see the user manual of SOLAR 1 9 Connect the output connector of the DC clamp to the IDC1 input of unit MPP300 CAUTION BEFORE CONNECTING THE DC CLAMPS TO THE CONDUCTORS Switch on the clamp check the LED indicating the status of the clamp s internal batteries if present select the correct range press the ZERO key on the DC clamp and check on the display of SOLAR I V the actual Zeroing of the corresponding Idc value values up to 0 02A are acceptable 10 Insert the DC current clamp onto the positive output conductor of the string respecting the direction of the arrow found on the clamp itself as indicated in in Fig 2 or Fig 3 Position the clamp toroid as far as possible from the inverter and from the negative output conductor of the string itself 11 Repeat the operations described in the two steps above for other possible DC power trackers to be monitored by using the IDC2 and IDC3 inputs accord
31. rtainty is indicated as Vereading no of digits resolution at 23 C 5 C lt 80 HR DC voltage Range V Resolution V 10 0 999 9 0 5 rdg 2401 Phase Neutral AC TRMS voltage Range V Resolution V Uncertainty 10 0 300 0 42 5 69 0Hz 0 5 rdg 2ddgt Max peak factor 1 5 Phase Phase AC TRMS voltage Range V Resolution V Uncertainty 50 0 594 0 1425 690 2 01 0 7 rdg 2401 Max peak factor 1 5 DC current by means of external clamp 5 0mV 319 9mV 0 06 FS 10V Current values corresponding to a voltage lt 5mV are zeroed AC TRMS current by means of external clamp transducer STD type uncerainy 4 Vig 0 06 0mV 219 9MV 5 pan 0 5 rdg 0 06 FS 10V Peak factor lt 1 5 Current values corresponding to a voltage 5mV are zeroed AC TRMS current by means of external clamp transducer of FLEX 8 5uV A FS 100A type Uncertainty 4 0 008 8 50mV 42 5 69 0Hz 00010 0 5 rdg 7491 Peak factor lt 1 5 Current values lt 1A are zeroed AC TRMS current by means of external clamp transducer of FLEX 8 5uV A FS 1000A type Uncertainty 0 085 85 0mV 42 5 69 0Hz 0 01 0 5 rdg 15dgt Peak factor lt 1 5 Current values lt 5A are zeroed C power Vmeas gt 150V AC power Vmeas gt 200V PF 1 Clamp FS A Range W Resolution W Uncertainty 0 000k 9 999k 0 001k 10 00k
32. sting of PV systems with single multi MPPT inverter single three phase AC output The instrument SOLAR l V used together with remote units SOLAR 02 and MPP300 allows testing PV systems characterized by 1 or more strings with the same direction and inclination and single phase or three phase output The remote unit MPP300 is capable of communicating with SOLAR l V to manage synchronization and data download and with the remote unit SOLAR 02 for recording irradiation and temperature values via a wireless radiofrequency RF connection which is active up to a maximum distance of 1m between the units Fig 2 Connection of MPP300 for testing a single phase PV system EN 9 EN MPP300 49 k t E e ONLY NEUTRAL WIRE IS MISSED Fig 3 Connection of MPP300 for testing a three phase PV system CAUTION When SOLAR I V is set in order to use MPP300 as a remote unit ALL connections relevant to electrical quantities voltages and currents must be carried out on unit MPP300 SOLAR I V must have no voltage nor current connected to its inputs The maximum voltage for the inputs of is 1000VDC between inputs VDC1 VDC2 VDC3 and 600VAC between inputs VAC1 VAC2 VAC3 Do not measure voltages exceeding the limits given in this manual Exceeding these limits could result in electrical shocks to the user and damage to the instrument In order to guarantee the operators saf
33. t SOLAR 02 and MPP300 does not allow the RF connection on the display of SOLAR 02 the symbol W flashes for approx 30s and then disappears Unit MPP300 steadily searches for the HF connection with unit SOLAR 02 24 Position the reference cell onto the surface of the PV modules Please refer to the relevant User Manual for a correct assembly 25 Put the temperature sensor in contact with the rear side of the panel and fasten it with some tape prevent touching it with your fingers as this could alter the measure 26 Wait for a few seconds to allow the probes to reach a steady measure and then connect the irradiation probe to input PYRA CELL and the temperature probe to input TEMP of unit SOLAR 02 2 Wait for the message READY to appear on the display of SOLAR 02 to indicate that the unit has detected the data with solar irradiation minimum threshold set see the User Manual of SOLAR 1 28 With the message READY shown on the display wait for approximately 1 minute in order to take a certain number of samples 29 Disconnect the irradiation and temperature probes from unit SOLAR 02 and bring the unit near unit MPP300 Bring the main unit SOLAR l V near MPP300 too The three units must be near each other max distance 1m 30 The main unit SOLAR 1 must be in EFF mode if no flashing symbol press key activate the RF connection search again 31 Press key W SOLAR 02 to activate the RF c
34. t by using the arrow keys A V and confirm with ENTER 4 2 In parameter Remote U EFF set MPP300 NO 431 0 mV kW m2 3 Press SAVE to confirm 0 060 94 C SAVE to save SET 5 2 MASTER INSTRUMENTS OF TYPE 2 REMOTE UNIT SETTINGS In the GENERAL MENU select ANALYZER SETTINGS press the F2 key or touch the ADVANCED item on the display The herewith screens are shown by the meter pome 27 11 51 M PHOTOVOLTAIC SETTINGS L2 as Remote unit SOLARO Remote unit SOLARO2 Remote unit Pyranometer mV kW m2 Pyranometer mV kW m2 Pyranometer mV kW m2 Irr min W m2 Irr min W m2 Irr min W m2 k Clamp Dc k Clamp Dc k Clamp Dc MOD Selection of rem U SOLAR 01 Selection of rem U SOLAR 02 Selection of rem U MPP300 1 By means of the F3 or F4 key or items MOD MOD on the display select the desired unit SOLARO1 or SOLARO2 MPP300 CAUTION The selection of remote unit MPP300 automatically disables the Pyranometer field as the sensitivity of the used irradiance probe pyranometer or reference cell should be set inside the internal menu of SOLAR 02 see user manual of SOLAR 02 The selection of the type of system MPP 1 or MPP 3 shall automatically force MPP300 as remote unit type 2 Press the SAVE or ENTER key or the smart icon Zh to save the selected setting by confirming with
35. ument performed without the manufacturers explicit authorization e Use not provided for in the instrument s specifications or in the instruction manual The content of this manual cannot be reproduced in any form without the manufacturer s authorization Our products are patented and our trademarks are registered The manufacturer reserves the right to make changes in the specifications and prices if this is due to improvements in technology 10 2 SERVICE If the instrument does not operate properly before contacting the After sales Service please check the conditions of the battery and of the cables Should the instrument still operate improperly check that the product is operated according to the instructions given in this manual Should the instrument be returned to the After sales Service or to a Dealer transport will be at the Customer s charge However shipment will be agreed in advance A report will always be enclosed to a shipment stating the reasons for the product s return Only use original packaging for shipment any damage due to the use of non original packaging material will be charged to the Customer EN 26
36. values of the electrical parameters Pnom Pdc Pac and of the ac performance nac are consistent with the system being measured e g nac 1 is not physically acceptable 18 On SOLAR I V press key to access the second screen which contains the values of the output DC parameters of the strings according to the number of DC inputs set see the User Manual of SOLAR I V In particular in this screen Vdcx dc voltage of string x Idcx dc current of string x Pdx dc power of string x GO start rec We recommend checking that the values of the electrical parameters Vdc ldc Pdc are consistent with the system being measured 19 On SOLAR I V press key W to access the third screen which contains the values of the electrical parameters c12 401 4 the AC side of the inverter consistently with the settings vac23 made see SOLAR l V user s manual single phase Vac31 three phase 4 wires Pe In particular in this screen Vacxy ac voltage between Phase and Neutral if single Pac2 phase or between Phases x and y if three phase Pacs lacx ac current of phase x GO start rec Pacx ac power of phase x Select MPP Iu We recommend checking that the values of the electrical Example of a screen for parameters Vac lac Pac are consistent with the system three being measured phase outpu 20 Keeping the three instruments near each other max distance 15 05 10 15 34 26 approx
37. with the same direction and inclination each connected to an MPPT of the inverter see 5 9 1 and single phase or three phase output The remote unit MPP300 is capable of communicating with SOLAR300N via USB cable to manage data synchronization and download and with the remote unit SOLAR 02 for recording irradiation and temperature values via a wireless radiofrequency RF connection which is active up to a maximum distance of 1m between the units 7H ee ONLY IF NEUTRAL 0c WIRE IS MISSED Fig 5 Connection of for testing a three phase PV system EN 15 AY MPP300 CAUTION When SOLAR300N is set in order to use MPP300 as a remote unit ALL connections relevant to electrical quantities voltages and currents must be carried out on unit MPP300 SOLAR300N must have no voltage nor current connected to its inputs The maximum voltage for the inputs of is 1000VDC between inputs VDC1 VDC2 VDC3 and 600VAC between inputs VAC1 VAC2 Do not measure voltages exceeding the limits given in this manual Exceeding these limits could result in electrical shocks to the user and damage to the instrument In order to guarantee the operators safety while making the connections disable the system being measured by means of the switches breakers upstream and downstre
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