(ENG)MPI 1500~6000 user manual
Contents
1. WARNING END USERS ARE STRONGLY NOT RECOMMENDED TO UPGRADE THE F W HIMSELF IMPROPER PROCEDURE MAY RESULT IN INVERTER FAILURE 14 English 6 Troubleshooting In this section troubleshooting techniques are listed to assist technicians in understanding the nature of a problem and deciding a proper action Tools needed 1 2 S 4 5 6 Digital Multi Meter For checking DCV ACV ACF AC frequency and open short circuit Screwdriver For removing unit form bracket and disconnect wiring This manual Laptop computer with the installation of solar control and firmware upgrade program Standard RS232 cable Oscillate Scope optional Fault condition message in English Fault Display Possible actions 1 Check the impedance between PV amp PV and earth ground The impedance must be larger than 8MQ 2 If above action is useless the isolation detection circuit fails replace one unit 1 This is caused by too high ground current 2 Unplug PV generator from the input check AC peripheral system 3 After the cause is cleared plug PV input again Check the status of the inverter 4 If above actions are useless the GFCI circuit fails replace one unit 1 Wait for 30 seconds if the grid come back to normal inverter will start again automatically Grid Fault 2 Make sure grid voltage and frequency meet the specifications 3 Use solar control to adjust operation range 4 If above actions are ineffective2. Buying Solar should be this easy USER MANUAL MPI 1500 2000 3000 4000 6000 Series GRID TIED SOLAR INVERTER 1 5KW 6 0KW V 1 2 WWW MPPSOLAR COM English Lr WARNING ONLY A CERTIFIED ELECTRICIAN OR TRAINED ASSEMBLING PROFESSIONAL SHOULD OPEN OR INSTALL THE INVERTER Before you start Thanks for purchasing MPI series grid tied inverter The MPI series inverters are highly reliable products with innovative designs and strict quality control This manual contains important information of installation operation and safety reminding of this unit Be sure to read this manual carefully before using this product If you encounter any problem during installing or running this unit please check this manual first before contacting with your local dealer or representative Most of the problems you encountered will be solved according to the instruction inside Thank you for purchasing our product again Please keep this manual in safe place for later use English Safety instructions Risk of Electric Shock 1 Do not remove the covers No user serviceable parts inside Refer service to qualified service personnel 2 Both AC and DC voltage sources are terminated inside this equipment Each circuit must be individually disconnected before servicing 3 When a photovoltaic array is exposed to light it supplies a DC voltage to this equipment Risk of electric shock from energy stored in capacitors Do not remove c
3. Ref 2 5V Fault DC Sensor Fault GFCI Fault Sci Fault Consistent Fault CPU Ver Mismatch EEPROM Fault Grid V Mismatch Grid F Mismatch Grid Z Mismatch GFCI Mismatch DC Curr Mismatch No AC Line PV Voltage is too high DC bus voltage is too high DC bus voltage is too low Temperature is too high Grid Voltage or Grid Frequency is wrong Hole sensor GFCI Device or AD Reference Voltage Fault PV Panel isolation problem Grid Impedance Fault Output ground leakage current too high Output Relay Fail Output DC injection too high 2 5V reference voltage inside problem Output DC sensor abnormal GFCI detection problem Communication between Master and Slave problem The value of Master and Slave are mismatch Firmware Version of Master and Slave are not the same EEprom problem The Grid V of Master and Slave are mismatch The Grid F of Master and Slave are mismatch The Grid Impedance of Master and Slave are mismatch The GFCI value of Master and Slave are mismatch The Output DC current of Master and Slave are mismatch Message table in English Operating conditions Display message Normal working status No display PV inverter is totally shutdown IPV 90V Standby INV Standby 90V lt Input voltage lt 100V Input voltage range 100 150V during start up After PV voltage is higher than 100V inverter is waiting for feeding to grid Initialization amp waiting INV Waiting 12 When PV voltage gt 150V inverter
4. inverter to cooler place 3 If it is not effective the temperature sensors fails replace another one 16 7 Specification MPI 1500 MP1 2000 MPI 3000 MPI 4000 MPI 6000 1500W 2000W 3000W 4000W 6000W 1650W 2200W 3300W 4400W 6000W Input Nominal DC voltage 360 VDC Maximum PV open 500 VDC 600V voltage MPPT range 150 to 500VDC urrent distortion 396 0 99 i RE CENMVETRIOM SMICIENGY saia gt 95 gt 95 gt 96 gt 96 max European efficiency Environment rotection degree IP 65 25 to 552C output power derating at 40 C and higher 0 to 95 non condensing Convection coustic noise level lt 40dB A weighted ommunication 8 features omm Interface RS232 standard USB SNMP amp RS485 optional W upgrade Yes via RS232 Mechanical WxDxH mm 352x300x133 352x300x133 352x300x143 550x300x133 550x420x143 Weight kg Product specifications are subject to change without notice 17
5. replace one unit 1 Grid impedance higher than the permissible value 2 Wait for 30 seconds see if it works again 3 Check the wires between inverter and grid Change larger wires if necessary 4 Adjust impedance parameter by solar control program 5 f useless the impedance circuit inside failure please replace another one 1 Grid is not connected check the AC connection by multi meter 2 Check grid connection such as wire and connector to the inverter 3 Check breaker between inverter and grid if it is tripped DO NOT CLOSE again replace another unit Isolation Fault Ground I Fault System fault Impedance Fault No Utility 15 English Fault Display Possible actions 1 Check the PV open voltage see if it is more than or too close to 500VDC 2 If PV voltage is much less than 500VDC e g 430V measure the DCV by multi meter compare the readings on meter and LCD if 25596 replace another unit 1 It is caused by the reading between main and redundant controllers Consistent are different Fault 2 Disconnect PV or PV from the input start the unit again 3 f this does not work replace another one 1 Caused by improper operation of the circuit Device Fault 2 Disconnect PV or PV from the input start the unit again 3 If it does not work replace another one 1 The internal temperature is higher than specified normal value 2 Reduce the ambient temperature by some other ways or move
6. is checking T bed BETTE UU conditions eeding grid MPPT Working Mode Inverter is feeding power Updating Master CPU hasten Flach The internal program is updating Master CPU firmware through RS232 interface I l The internal program is updating Slave CPU Updating Slave CPU firmware Slave Flash through RS232 interface Monitoring parameters nstantaneous Output power O P Watt xxxxW The real time output power in xxxx W ww feta energy which has been feed to grid since information inverter was installed rid voltage GRID VOLT xxx xV Grid voltage in xxx x VAC rid frequency GRID FREQ xx xHz Grid frequency in xx x Hz System fault Earth fault of the PV panels or failure of surge Isolation failure Isolation Fault voltage protection G G Fis O O C 3 c jeb et D Q D 5 D c lt FI GFCI Ground Fault Current Ground I Fault Current on ground conductor is too high Interrupter active Grid measured data is beyond the specification Grid failure Grid Fault voltage 8 frequency 1 Grid impedance higher than the permissible Abnormal Grid Impedance Impedance Fault value 2 Grid impedance change is higher than limit T m 1 Inverter is not connected to grid No grid utility voltage No Utility ae pean DC I t volt higher than th issibl DC Input voltage too high PV Over Voltage aay voltage higher than the permissible Inverter failure The readings of 2 microprocessors are not C
7. to fix the inverter Be sure to check the mounting of inverter Try to lift up the inverter on the bottom make sure it is firmly attached Select the installation location carefully The height of inverter should be visible so that user can check 6 English the inverter status easily the wall must be strong enough to support the inverter to prevent vibration while in operation WALL M3 15L Screw Connect to grid AC utility 1 Check the grid utility voltage and frequency 230VAC or 220VAC 50 60Hz single phase 2 Openthe AC breaker or fuse between AC wire and utility 3 For 1500 2000 3000 4000 series connect AC wires as follows Disassemble female socket Connect AC wires to connection socket as indicated below Female insert with coupling ring AC wire inserting direction Pressing screw Insert Line wire to L Neutral wire tol NI and Ground wire to pin e Assembly the socket again Insert the whole socket set to inverter r English Twist the coupling ring to receptacle on inverter Make sure it is perfectly matched 4 For 6000 series connect AC wires as follows Disassemble female socket and turn on the lock key 1 Connect AC wires to connection socket as indication Insert Line wire to 1 or L Neutral wire to N and Ground wire to pin e Assembly the socket again and turn off the lock key 1 Insert the whole socket set to inverter and turn off t
8. am 1 Asample grid tied PV system is indicated in figure below 2 PVarray Provide DC power to inverter Connection es PV array system 3 Inverter Convert DC power from PV array to AC Alternative Current power Because MPI inverter is a grid connected inverter it works to control its current amplitude according to power provided from PV array The inverter will always try to extract maximum power from PV array 4 Connection system The interface between Utility and inverter It may consist of electrical breaker fuse and terminals for connection To ensure safety this part must be performed by qualified technician 5 Utility It is also call grid in this manual The way your power company provides power to your home Please note that MPI inverters can be connected to low voltage system 220 230VAC system only 10 English 4 Inverter status MPI inverter is designed to be user friendly therefore the status of inverter can be easily shown by panel display All possible information is shown in the following table LED Display There are 2 LED s on Inverter one is blue and the other is red 1 Power on Blue LED It lights up when Inverter is working It will be dark when fault mode or shutdown mode 2 Fault red LED Once this LED lights up it means inverter meets fault or failure conditions The detail conditions can be found in the table below LCD Display A Under normal conditions LCD w
9. he lock key 2 Female insert with coupling ring Pressing inserting direction Twist the coupling ring to receptacle on inverter Make sure it is perfectly matched 5 Suggested wire size for AC cable Model mm AWG no MPI 3000 MPI 4000 MPI 6000 Connect to PV array DC MPI 1500 2000 3000 English MPI 4000 6000 1 Turnoff the DC switch 2 Make sure the maximum open circuit voltage Vox of each PV string is less than 500V UNDER ANY CONDITION MPI 6000 is 600V We recommend use PV array which Vec is less than 430VDC under 25 C ambient 3 Use MC Multi contact or Tyco connectors as PV array terminals 4 Connect positive from array to terminals and negative to terminals Each DC terminal on Inverter can withstand 20A DC current at most 6000 is 30A 5 Turn on the DC switch Note Before connecting to DC terminals please make sure the polarity is correct Incorrect connection will damage the unit PERMANENTLY Checklist 1 After connecting DC the message on the LCD display should be in the sequence of INV Waiting gt No Utility and the RED fault LED keeps on Close the AC breaker or fuse in previous section check whether the inverter starts to work If inverter works normally the LCD will show Working mode That is the power feed to grid The checking is completed AC is not yet connected at this point English 3 System diagr
10. ill show Working Mode as inverter is working B When LCD shows Working Mode press button over 3 sec LCD will show Setting then enter setting function mode LCD Contrast setting gt press button over 3 sec to enter Press button to select Contrast 1 to Contrast 5 Then press button over 3 sec LCD will show Setting Contrast setting is OK LCD Language setting press button over 3 sec to enter Press button to select English or French or German Then press button over 3 sec LCD will show Setting Language setting is OK If user doesn t touch button over 5 sec LCD will escape setting function mode C In Working Mode you can toggle button to enter meter value mode LCD will show general meter value by turns O P WATT PV VOLT GRID VOLT GRID FREQ O P CUR xxx KWH O P energy RATING xx KW PV Inverter Rating M CPU Ver xxx Firmware version of Mater CPU S CPU Ver xxx Firmware version of Slave CPU 1 If user doesn t touch button over 5 sec LCD will escape meter value mode and shows Working Mode 2 During meter value mode if user presses button over 5 sec the screen will Freeze Lock 3 If screen freezes Locked user presses button over 5 sec and the screen will Unfreeze Unlock D Error Message No Utility PV Over Voltage DC Bus High DC Bus Low Over Temperature Grid Fault Device Fault Isolation Fault Impedance Fault Ground I Fault Relay Failure DC INJ High
11. onsistent failure Consistent Fault consistent It is probably caused by CPU and or other circuit not functioning well DC Bus High DC Bus Low DC Bus voltage too high or too low Device Fault The device is unable to return to normal status The internal temperature is higher than specified Temperature too high Over Temperature P 8 P normal value 13 5 Communication MPI inverters are equipped with power communication interface and options User can use Solar Control software to monitor the status of inverter with PC Also qualified personnel can upgrade the F W firmware inside through RS232 port 1 RS232 To use RS232 port you have to remove the RS232 cover on bottom side of Inverter It is a DB9 socket the k definition is Assignment Description omms N C means No Connection Female Side 2 Optional communication slot This slot is a very useful feature for future expansion Inverter can accept interface cards specially designed for the slot only There are 2 kinds of cards can be applied now One is RS485 card and the other is SNMP Simple Network Management Protocol card In the future extension cards such as data logger or others may be developed For card detail information please refer to use manual of individual card 3 F W upgrade To keep the firmware newest one can use RS232 port and special program to upgrade inside F W To do this please contact with your local representative AN
12. over until 3 hours after disconnecting all power sources 5 This unit is designed to feed power to grid utility only do not connect this unit to AC power supplier If connecting to those facilities AC power supplier will be damaged 6 Please take out the unit from packaging box carefully Check if there is any outside damage If you find any damage please contact with your local dealer AS WARNING HIGH LEAKAGE CURRENT THE EXTERNAL PROTECTIVE EARTH PE TERMINAL MUST BE CONNECTED TO THE PE CONDUCTOR BEFORE CONNECTING SUPPLY English 1 Overview MPI 1500 2000 3000 Series 1 5KW 3KW RED LED FAULT LCD DISPLAY BUTTON FRONT VIEW BLUE LED WORKING USB RS232 AC CONNECTOR INPUT DC SWITCH BOTTOM VIEW EXTERNAL PROTECTIVE EARTH PE TERMINAL SOLAR PANEL DC INPUT COMMUNICATION SLOT FOR SNMP amp RS485 OPTIONAL English MPI 4000 6000 Series 4KW 6KW FRONT VIEW MPI 4000 FRONT VIEW MPI 6000 LCD DISPLAY BLUE LED WORKING RED LED FAULT LCD DISPLAY BUTTON BOTTOM VIEW MPI 4000 AC CONNECTOR COMMUNICATION SLOT FOR INPUT DC NMP amp RS485 OPTIONAL USB RS232 SOLAR PANEL SWITCH DC INPUT EXTERNAL PROTECTIVE EARTH PE TERMINAL ic lll i BOTTOM VIEW MPI 6000 4 English 2 Installation Before starting installation please check the following items This unit is designed for indoor and outdoor usage But the unit cannot be exposed
13. under rain or water directly and using a shelter to protect the unit would be recommended Do not expose this unit to the sun directly This may reduce the output power due to high temperature Check the ambient temperature of installation is within specification 25 55 C The grid to which the inverter is connected must only be 230V system The connection to grid is approved by utility company The installation must be done by qualified personnel Though MPI inverter can be installed where temperature up to 50 C we still strongly recommend that it should be installed where ambient temperature in the range of 0 40 C Mount MPI inverter to the wall 1 2 Select a wall or solid place can support the inverter Convection cooling space required To dissipate the heat generated by inverter 25cm space at least on the top and bottom is necessary Mark the hole position according to following table or mounting template attached F IM y ow oc odo oo am aro o y Pod g a a a Taj a a mi a a p a Lal a a a al 2 a a s u s u p 2 s 25cm space required 25cm space required 4 5 6 English MPI 1500 MPI 2000 MPI 3000 MPI 4000 MPI 6000 w mm 347 6 347 6 347 6 257 257 257 327 W A 7 jn URN YW FO l de crew holes on wall 4ocs f M4 screw dpcs Hang the inverter on the 4 screws Drive fix screw on bottom leg
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