Growatt CP250 User Manual
Contents
1. 20 years yield power Monthly Yearly yield yield power Power Table 6 1 Growatt CP250 LCD Menu After powering on the LCD it will initialize itself first and then enter the boot which displays the progress bar of starting up The main interface will display after finishing the startup about 20S if the progress bar has not been finished after 60S there is communication problem between LCD and control board Then you can begin to read the information and set the parameters Inverter communication state station number and system time 1s displayed at the top of each page of the LCD 29 W Each page has five commonly used function keys run data historical information system settings Home at the below of the page The five commonly used keys corresponding sub menu are under the button and it will be marked green after selected 6 2 LCD operation 6 2 1 Initialization Initialization interface The initialization interface will be divided into two parts the LCD initialization and inverter initialization LCD initialization it will be finished after powering up for 20S Inverter initialization After LCD initialization completed the inverter boot screen will pop up The initialization progress will be displayed on the LCD After finishing initialization which takes about 30S it will automatically switch to home page and operation on the LCD can be2. 42 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt proceeded Note The default language is Chinese 6 2 2 Home page Clicking Home button in any interface will enter into the Home page The operating status of the inverter output power safety standard model input and output voltage current information can be viewed in the page Pressing the following key can switch to other pages 43 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt siet ee fe ff ele OPEN e LEI SL e Output Power HI KN FT veven tenanan Larowatt Daily Generation 1 6 kWh Total Generation 236 EWh Operation State OnGrid DO Present Safety UL W P LE DEE ST IEN 1510 aa Sa k VE 375 1 V 1488 A Bl Sa i 546 0 V emm Ek 186 1 A 3768 v 105A P ST V R NA SE CP250 Operation Data e Es i EE 5 E 1 ort SH 6 2 3 ON OFF interface Clicking ON OFF button in any interface will enter into this interface There are ON and OFF button which is used to turn on and turn off the inverter After selecting a sub window will pop up for confirmation Yes No L er FU EE 4 De IA eh I 44 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt 6 2 4 System setting Clicking System setting button in any interface will enter
3. Check if there is abnormal sound when inverter is operating Caution risk of danger 7 3 Waste disposal powering tomorro every week The inverter will not cause environmental pollution since the all the components meet the requirements of environmental protection According to environmental protection requirements user shall dispose the inverter in accordance with the relevant laws and regulations 58 Growatt New Energy CO LTD 8 Appendix 8 1 Specification Rating PV input quantities Vmax PV absolute maximum PV input operating voltage range Maximum operating PV input current Isc Pv absolute maximum Max inverter backfeed current to the array a c output quantities Voltage nominal or range Current maximum continuous Frequency nominal or range Power maximum continuous Power factor range Maximum output fault current Maximum output overcurrent protection Weight unit Ingress Protection Environmental category Suitability for wet locations Pollution degree Elect protection class Overvoltage category Mains connection Transformer info Insulation class 8 2 software version SSCP_DSP_V1 0 00 www ginverter com powering tomorro 450 1000 W or VA with 250K PF 35 35 35 a c A peak and duration or RMS 00 Category III for AC output category IIfor DC Without isolating Transformer 59 powering tomorro Growatt New Energy CO LTD www ginv
4. o E O OE EN A 6l powering tomorro Growatt New Energy CO LTD www ginverter com rowatt I About this Manual This chapter describes the contents of this manual target reader and safety symbols can help users to have a better understanding of the manual 1 1 Contents This manual applies to Growatt CP250 PV grid connected inverters the manual contains lt gt safety instruction Attention that needs to be paid when operating and maintenancing the Growatt CP250 lt gt Product description The role inverter plays in the photovoltaic grid connection system and structure principle protection operation mode storage and package size of the Growatt CP250 lt gt Installation Inverter installation conditions tools and the inverter mechanical and electrical installation the communication connection and inspection lt Commissioning Inspection before commissioning and procedure to turn on off inverter lt GUI Graphic User Interface instruction Information displayed on the inverter LCD touch screen and setting instruction lt Routine maintenance Daily maintenance of the inverter the replacement of some spare parts and waste disposal instruction lt Appendix Technical data warranty policy and contact information 1 2 Target readers Qualification 1 Only professional electricians or professionally qualified personnel can transport or install this product 2 The operator should be fully familiar with th
5. 5 Historical information Clicking historical information can enter into the sub menu of the historical information The submenu includes The inverter ON and OFF time record history of failure serious historical failure The inverter ON and OFF time record ON and OFF time record can be found in a total of 20 by pressing the flip button 47 Growatt New Energy CO LTD rowatt a Inverter On grid Time 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 90 0 0 90 0 0 0 0 0 0 0 0 0 0 0 0 ry Operation Data ON OFF Time General fault Es Serious Fault o sjelelels sdl s 8da s sf ef wf sf ef of eof se ee of eleoleoleolololcolololo History Info powering tomorrow rowatt www ginverter com 2012 10 30 10 52 13 History Info Inverter Off 0 0 0 0 0 0 0 0 PATAG HLR RR DEED ER EE 0 0 0 07 070 RE CETE I es iren System Setup on off History of failure all the common history of failure details can be found by flipping the page up and down The common fault information see table 6 3 1 rowalt ON OFF Time General fault Time 10 17 18 10 19 20 10 21 22 10 23 24 10 25 26 10 26 27 10 28 29 10 30 31 10 32 33 10 34 35 Serious Fault p History Info a Operation Data 2012 10 30 11 17 13 History Info AC OverVolt Fault V AC UnderVolt Fault V AC OverFreq Fault Hz AC UnderFreq Fault Hz DC OverVolt Fault V DC OverCurr Fault V AC
6. Chart Month Generation JJ 2012 10 30 ka 1 14 46 11 7 FF 9 Operation Data History Info System Setup On fort Home lt gt 20 years yield yearly yield displayed in bar chart 51 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt arowatt Pressing Back can return to real time data 6 3 LCD display information schedule 6 3 1 General history failure table seseemmee oe om 52 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt i efor ov menes oe mose re ect E Nr ES mnaetn vere ou vere somme ee Os sem E em ae SN E sommaren nl ien 53 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 44 AC L1Curr High Fault se ee mere we om ne mo 54 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Table 6 3 1 General history failure table 6 3 2 Serious fault history S ee gt mente 55 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt lightning protection devices failure Overheating protection Anti discharge protection Figure 6 3 2 Serious historical fault table 6 3 3 Inverter status OR O Figure 6 3 3 inverter status table 7 Routine maintenance 7 1 Replacing the dust screen When the inverter fails the inverter will automatically disconnect from the power grid and display the alarm information When there is pr
7. DC voltage is lower than the starting voltage equal to 450Vdc the touch screen keeps shown Waiting in standby Procedure 5 If the DC voltage is higher than the starting voltage equal to 450Vdc the inverter will inspect the grid connected conditions When conditions are satisfied 1t will automatically switch to Normal at this moment the OPERATION lamp will be on e Automatic power on When the power on conditions both at DC and AC sides are satisfied the inverter will be powered on automatically After the DC input or AC grid fault is demolished the inverter will also be powered on automatically e Manual power off In the operation process of the inverter we can power off the machine through the OFF button on the panel At this moment the inverter stops work and stops to transmit the DC energy to grid 1 After manual power off the machine must be powered on manually otherwise the inverter is unable to power on It still maintains voltage after manual power off 5 4 Pilot operation completion The following procedures shall be carried out after the inverter is grid connected Procedure 1 Inspect whether abnormity exists in the inverter such as excessive noise excessive heat abnormal smell or smoke Procedure 2 Measure whether inverter connected grid voltage current and THD are stable Procedure 3 Operate LCD control panel and inspect whether it displays normally and accurately 40 powering
8. Liability The liability of Growatt in respect of any defects in its PV inverters shall be limited to compliance with the obligations as stated in these terms and conditions of warranty Maximum liability shall be limited to the sale price of the product Growatt shall accept no liability for loss of profit resultant of indirect damage any loss of electrical power and or compensation of energy suppliers within the express meaning of that term The warranty rights as meant herein are not transferable or assignable to any third party excepting the named warranty holder 8 4 Contact If you have technical problems concerning our products contact your installer or Growatt During inquiring please provide below information Inverter type Modules information Communication method Serial number of Inverters Error code of Inverters Display of inverters Growatt New Energy Technology Co Ltd Building B Jiayu Industrial Zone 28 Guanghui Road Longteng Community Shiyan Baoan District Shenzhen P R China Tel 86 0 755 2951 5888 Fax 86 0 755 2951 8158 Email service ginverter com Website www ginverter com Importer 61
9. h e There must be ventilation equipment inside the distribution room to ensure release of the waste heat generated by the inverter from the equipment and allow for maximum ambient environment temperature This can be realized from installation of exhaust devices e Another fan can be added at the air duct outlet to exhaust the air out and ensure balanced pressure e The direction of the air outlet shall be selected according to the local actual wind direction e Pay attention to the dustproof measures and waterproof design at the air inlet and outlet 23 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt e If more air ducts are required its dimensions shall be designed by the professionals according to the air output amount Figure 4 1 2 Inverter internal ventilation diagram Other protections With IP20 of protection level inverter is appropriate to be installed in dry and clean environment Meanwhile water leakage of the house shall be prevented as it may damage the inverter According to EMC requirement and noise level the inverter shall be installed in industrial environment 4 2 Tools and spare parts required for whole machine installation Tools and spare parts required for installation is as follows e Hoisting crane forklift or fork lift truck with the capacity for bearing the weight of the inverter e Torque wrench e Screwdriver e Wire stripper 24 powering tomorro Growatt
10. into this interface Submenu language settings time settings inverter information maintenance Pressing the left button can enter into the corresponding submenu interface The default one is language setting interface Language Settings Select language currently it only supports Chinese English default language is Chinese 45 Growatt New Energy CO LTD www ginverter com rowatt JA ek 2012 10 30 System Setup 10 49 49 Language Time setting VA DN English Chinese Information Maintenance ECE Operation Data History Into System Setup Home Time settings system time setting if the date and time displayed on LCD is not inconsistent with the actual date and time they can be modified here Rz 2012 10 30 System Setup E 10 50 43 Language Time setting Date d 10 RH 30 Ei Time gs E Information p Maintenance ese Ff e e Operation Data History Info System Setup onj Home Device Information This page shows the manufacturer inverter serial number hardware and software version information and the date of manufacturing 46 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt arowatt Maintenance the interface requires a password to login It is for electrician and maintenance personnel who are fully familiar with the structure and working principle of the PV grid system only in order to avoid damage to personal safety and the inverter 6 2
11. label information is altered vague or disappeared powerin g tomorrow Growatt New Energy CO LTD www ginverter com rowatt g A GROWATT PV Grid Connected Inverter Model CP 250 DC Input Operating Voltage Range 450 1000 d c V MPPT Input Voltage Range 450 820 d c V DC Max Input Current 635 d c A Isc PV 635 d c A Nominal AC Output Voltage 3 400 a c V Nominal AC Output Current 361 a c A AC Output Operating Frequency 50 Hz AC Output Nominal power 250 KW Max AC Output Power 275 KW Max Efficiency 97 70 Power Factor 0 99 Protective Class Class Ingress Protection IP20 Communication Port RS485 Operating Temp Range 25 to 55 C lll Il HI S N XX XXX XXXXX Date of Made XXXX XX XX gt CE Growatt New energy technology Co LTD MADE IN CHINA Figure 3 8 product label 3 9 Packaging information Unit quanti description ty SE Ce Table 3 9 Packaging information 20 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt 4 Products installation 4 1 Installation condition requirements To ensure normal operation of the machine the installation environment is required as follows lt gt The ingress protection of inverter is IP20 Moreover as this product is an electronic equipment it shall not be placed in humid environment Install indoors and avoid sunlight and rain Ventilation of the room shall be g
12. reduced appropriately Inverters for use with ungrounded arrays shall have means to measure the DC insulation resistance from the PV input array to ground before starting operation Minimum Insulation Resistance before connection to Inverter Max Power Rating the MAINS 30kVA S00KO or 1KO V Vmax py KO whichever is higher 5000 Vmax pv Smax KO where Vmax py IS as defined in Part 1 and Smax is the max apparent power rating of the inverter in VA Ventilation requirement In operation inverter will produce a lot of heat When ambient temperature is too high the electrical property of the equipment may be affected the equipment may even be damaged Therefore the heat release shall be fully considered in designing the control room to ensure operation of the equipment in high efficiency Ventilation environment To satisfy the ventilation requirement of inverter its installation environment shall meet the following conditions X Inverter shall be prevented from being installed in the place of poor ventilation condition and insufficient air flow X The air inlet shall have enough air supplementation Ventilation equipment To ensure safe and reliable operation of the equipment the ambient temperature must be within the permission range 25 C 55 C therefore appropriate ventilation devices must be equipped with to release the heat generated by the equipment We suggest the ventilation rate is more than 10000m
13. tomorro Growatt New Energy CO LTD www ginverter com rowatt By now the pilot operation of inverter is fully completed and we can enter the daily operational maintenance 5 5 Power off steps 1 After the inverter is completely powered off the general PV switch at solar panel side and the Grid switch at grid side still maintain voltage If operations are need please be sure to cut off the outer power completely and wait for not less than 5 minutes 1 Exercise the OFF button on LCD operation panel 2 Cut off PV SWITCH 3 Cut off GRID SWITCH 4 Cut off the switch of DC distribution cabinet or combiner 5 Cut off the switch of AC distribution cabinet 6 GUI instruction 6 1 LCD display screen introduction User can view the information of the inverter operation on the LCD touch screen as well as setting the operating parameters In order to facilitate the operation a menu is provided below 41 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Operation eee Main History info System setting ON OFF data page Real time Power a Ch Jeri evici Device i Sech Ed power On off General Serious anouage Time Device JONI On off data Curve ee record fault fault set set info maintainace
14. 4 2 2 Raise the detents 4 4 3 DC side wiring Caution risk of danger DC side wiring method is as follows Step 1 Disconnect the higher DC side power distribution circuit breaker the DC side wiring uncharged 31 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Step 2 Measuring the open circuit voltage of the PV array with a multimeter to ensure within the allowable range Step 3 With a multimeter to confirm the positive and negative Step 4 Stripped end of the cable insulation Step 5 Crimp the copper nose 1 The copper core part of the strip good pressure line into the wiring copper nose hole 2 Terminal Crimping Machine the the wiring copper nose pressed Crimp the number should be more than two Step 6 Install heat shrink tubing 1 Select cable size is more in line with the heat shrink tubing choose the length of about Scm 2 Heat shrinkable sleeve over in the Wiring copper nose to completely cover the wiring copper nose pressure line hole fit 3 With a hot hair dryer to heat shrink tubing tightening Step 7 Connect DC cable to the convergence box or the output of the PV array positive 1 Selection and wiring copper nose meets the bolt 2 To be the wiring copper nasal tightening in the AC wiring copper rafts 3 Fastening bolts with a screwdriver or wrench Step 8 DC end to the combiner box or the negative electrode of the photovoltaic array output connected inverters in accordance wi
15. Curr Unbalance Fault AC Volt Unbalance Fault 96 AC Ground Fault K AC OverCurr Fault V Top System Setup On off Home History of serious failure a total of 20 items of historical serious failure information can be found in details Please refer to table 6 3 2 48 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt 6 2 6 Operation data Clicking the Operation data in any interface will enter into the submenu of operation data The sub menu includes real time data the power curve and energy yield figure Pressing the left button can enter into the corresponding sub menu interface The default interface is the real time data interface Insert USB Disk on the back of the LCD display and the real time operation data will be stored in the USB Disk in every minute Inverter will create a CSV format file every month in the USB disk for data storage Real time data current PV power generation parameters and real time data including the grid voltage the grid frequency the grid current DC input voltage DC input current the internal temperature of the chassis as well as the total power generation time updated in real time When total power is more than 100 000KW it will be measured by MK when total power is less than 100 000KW it will be measured by KW 49 Growatt New Energy CO LTD www ginverter com rowatt AU 2012 10 30 Oneration Data 19 59 33 D Current PY2 Current
16. Grid Current U Grid Current V Grid Current WW Inductor2_curr_A PYM Voltage PV Voltage Real Time Data Grid Val tage UV Ep Grid Voltage VW Grid Voltage WU Power Chart Inductor Cum A Inductor cur B Zu nductort eum C Induetor2 cum B jr gt lt lt Inductor2 cur Input Power 552 KV Apparent power Output Power 4956 ku Reactive power DailyEnergy 4382 7 Wath Total generation 118 554 Daily Time ER Min Total Time 5794 LC d Operation Data History Info System Setup On Off Home Power curve daily yield displayed in bar chart updated every 12 minutes In 2012 10 30 1 KEIER E Een wa FOW ATT Operation Data L 14 47 18 Real Time Data AR l Power Chart gt Generation Chart Operation Data History Info System Setup onat Home Energy yield Clicking this button can enter into submenu Monthly yield daily yield displayed in bar chart updated every 12 minutes 50 owering tomorrow Growatt New Energy CO LTD www ginverter com rowatt IM 2012 10 30 rowatt Generation Chart g 1 14 44 13 o l st l Month Generation LL H 7 oe j el T 20r ears Generation es L WAND KA AN 12345678 8 1011 12 1314 15 16 17 18 19 20 21 22 23 24 2526 27 2829 3031 D os P hu fk Operation Data History Info vstem Setup On fort Home lt Yearly yield monthly yield displayed in bar chart updated every 12 minutes IroWatt generation
17. New Energy CO LTD www ginverter com rowatt e Terminal crimping machine e Heat dryer e Megger and multimeter 4 3 Mechanical installation 4 3 1 Transportation of packaged whole machine NOTE This inverter is transported as an integrated unit and the user can hoist it from the bottom with a forklift or move it with a hoisting crane or crane Note 1 The inverter is integrated and cannot be dissembled either in transportation or installation Any fault attributed to modification unauthorized by the Growatt is beyond the quality assurance Note 2 In movement tilt violent shake or sudden force upon the inverter shall be prevented such as sudden down of lifting Note 3 Please read carefully the labeled parameters to select an appropriate transportation means and storage place We suggest the user make use of forklift to move the inverter if possible To keep the equipment in a better protective status please adopt transportation with package as much as possible and comply with the labels printed on the package in transportation powering tomorro Growatt New Energy CO LTD www ginverter com rowatt ES The gravity centre CENTER OF BALANCE H Lifting logo H Sp HEAVE HERE Face up to prohibit the inverter horizontally tilted or upside down Handle with care to avoid the transport environment too intense collision friction damage to the inverter Keep away from moisture Figure 4 3 1 Packaging I
18. allation Inspection List in Table 4 6 Procedure 2 Ensure the AC amp DC circuit breakers are cut off Procedure 3 Ensure the emergency button is available and woks normally 5 2 2 Grid voltage inspection Inspect whether the three phases of the inverter is correctively connected with the three phase sequence of the grid e Inspect whether the line voltage and frequency are within the prescribed range and record the value e If possible measure the phase THD Total Harmonic Distortion and inspect the curve If distortion is serious the inverter may fail to operate 5 2 3 DC side voltage inspection The DC side shall be connected to the inverter from the Combiner or DC distribution cabinet e Ensure correct DC input polarity e Measure and record the DC open circuit voltage of each line Voltages of each line shall be similar and less than the permitted maximum DC voltage value 5 3 Power on steps First power on Operation procedures for the first power on and operation of inverter are as follows Procedure 1 Screw the handle of circuit breaker at the AC side to ON position Procedure 2 Screw the handle of circuit breaker at the DC side to ON position 39 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Procedure 3 It takes about 10 seconds to automatically initialize the power inverted circuit and equipment Than the POWER LED lamp on control panel will be on Procedure 4 If the
19. anwhile it shall be permitted by local power supply department before install Grid connected inverted power Model Growatt CP250 Grid Voltage Limit 310V 450V Grid Frequency Limit 45HZ 55HZ 55HZ 65HZ 3 Cable requirements Cable Cu Cable Diameter Requirements Aperture mm2 Model Growatt CP250 PV Array PV 2 75 mm or 185 mm 10 30N m PV Array PV 2 75 mm or 185 mm 10 30N m Grid Phase A 2 70 mmm or 240 mm p10 30N m 29 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Grid Phase B 10 30N m Grid Phase C 10 30N m Earth Wire More than 120 mm or 2 35mm 10 30N m Green and yellow 0 75mm shielded Twisted pair Communication Wire 4 4 2 Preparation for electrical wiring Before wiring the users need to open the front door of inverter and the specific procedures are as follows Procedure 1 Cut off the circuit breaker at DC amp AC sides As shown in Figure 4 4 2 1 move the Grid switch and the PV switch to the state of OFF GRID SWITCH i GRID SWITCH ABB ON OFF Figure 4 4 2 1 AC amp DC Main Switch Status Schema Procedure 2 Open the front door The unlock schema is shown in Figure 4 4 2 2 30 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Figure 4 4 2 2 Open Machine s Front Door Procedure 3 Raise the detents and then close the doors The schema is shown in Figure 4 4 2 3 Figure 4
20. bolt must be at their correct positions before installation Mounting dimension of foot margin on foundation is shown in Figure Figure 4 3 2 1 Movement and installation of bear machine The inverter with demolished package can be moved with forklift hoisting crane slide rail or crane If the package demolished place is far from the final installation place it can be transported with forklift containing wood pallet It is shown in Figure Figure 4 3 2 2 21 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Figure 4 3 2 3 Caution risk of danger 4 4 Flectrical installation 4 4 1 Input and output requirements Caution risk of danger 28 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 1 PV array The positive and negative open circuit voltage of the PV array shall not exceed 1000 otherwise the equipment will be in over voltage protection state and cannot work normally The power of inverter PV array can be 575KW PV Array Power Limit 285K W PV Array Open circuit Voltage Limit 1000V 2 Three phase grid Inverter will continuously inspect whether the grid satisfy the grid connected conditions The following is the grid limit for satisfaction of local Grid connected Conditions requirements in different countries may vary the value can be setup and please refer to local grid connected regulations for details and the grid is three phase grid Me
21. by testing with a multi meter Although the DC and AC switch has been disconnected there is still voltage in some components for example capacitors Hence the repair or maintenance operation can only be proceeded at least 5 minutes after the disconnection lt Maintenance and modification Only personnel with Growatt authorization are qualified for the maintenance and modification And to ensure personal safety use original accessories provided by the manufacturer only Otherwise electrical safety and EMC might not comply with the required standard lt gt Function and safety parameters Don t change the parameters of the inverter without authorization from the local utility and Growatt New Energy Co Ltd Otherwise it might lead to injury or equipment damage and the warranty of the inverter will be voided isk of electric shock Energy storage timed discharge powering tomorro Growatt New Energy CO LTD www ginverter com arowalt Electrical shock danger exists in the capacitor the cover shall be moved at least 5 minutes later after all powers are disconnected 2 7 Inverter EMC and noise level Electromagnetic compatibility EMC is the requirement for electrical equipment that it can operate normally in the electromagnetic environment and does not cause unacceptable environmental impact itself lt Anti interference property from internal components lt gt Anti interference property from outside lt Electr
22. chine installation oorrrnnnnnnnnrrrrrnnnnn 24 43 Mechanical pel Ets seet Seege 25 4 3 1 Transportation of packaged whole machine oeooeeeneneennnnnnnnnnnesnssnnesenseeneessesseeee 25 4 3 2 Movement and installation of bare machine eeeeeeeeeneennennnnnnnnnenessesssssesseeesesseeee 26 44 EE 28 4 4 1 Input and output redurements 28 4 4 2 Preparation for electrical WIrng mmussaerarasssssaressnasnkesarsanesnesnnesenesanesseesknusdnesanesdee 30 AAS DC Side WENE oee a a 31 E E E ee 33 STN 35 Ao CONA O ee E EEE 36 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 4l eene 36 4 5 2 ENN 37 4 6 Tetange beet 37 SPO AUO 38 TR 38 LA Wi 26 86 RR er ee ENAA AETAT 39 5 2 1 EEN EE EE 39 5 2 2 Grid EE e E 39 5 23 DC 8106 voltage AMS PC CU OM vasen 39 NTN 39 5 4 Pilot operation completion rrrrrrrrrrrrrrrrrrrrrrrrsrrrrrrrssrrnnnrrrnrrrnrrrrrrsrrssssssssssrnnnnsssnnssne 40 ON GOE EEE EEE EE 41 TN 41 6 1 LCD display screen mtroducnon 41 SE DOPET 10 EE EE E E 42 JE Ev ov E 42 SP EE 43 EH 44 624 System SEINE ae 45 62 Historical in ormat E 47 ENN 49 6 3 LCD display information schedule rrrrrrrrrrnrrnnnrnnnrnnrrrrrrrrrrrrrrrrsrnnsnnnnnnnnnnnnsnnsnsns 52 6 3 1 General history failure Goble 52 LNM 55 DN 56 T uge AE EE dE 56 7 1 Replacing the dust screen 56 TRE ne 57 FR VES e EE EEE EEE EE ed eran 58 NNN 59 L NN nn 59 NNN 59 8 3 Growatt Factory warranty EE 60
23. e structure and working principle of the entire 4 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt grid connected PV system 3 The operator should be fully familiar with this manual 4 The operator should be fully familiar with the local standards of the project 1 3 How to use this Manual Read this manual before installation of the Growatt CP250 Store this manual where accessible at all times The contents of this manual will be periodically updated or revised if necessary However discrepancies cannot be excluded Please refer to the product or download the latest version of this manual on www growatt com 1 4 Symbols explanation In order to ensure the personal and property safety of the user during installation or optimally efficient use of this product symbols are used highlight the information The following symbols may be used in this manual please read carefully in order to make better use of this manual Caution risk of danger powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Caution risk of electric shock Caution risk of fire hazard Protective conductor terminal Risk of electric shock Energy storage timed discharge 2 Safety instructions Inverter installation and service personnel must be trained and familiar with the general safety requirement when working on electrical equipment Installation and service personnel should also 6 powerin
24. erating status of all inverters as shown in Figure 4 5 1 The RS485 wire should be less than 1000m 36 Growatt New Energy CO LTD www ginverter com RSd35 RS Figure 4 5 1 RS485 Multi machine Communication 4 5 2 Internet communication There is an Ethernet port on the right side of LCD Please connect the LCD and Router with Network cable and then router can make data interaction with serve and users can communicate with the inverter by internet Internet server Figure 4 5 2 Internet Communication 4 6 Installation inspection Before the inverter is put into operation it shall be inspected for installation Two working men or more shall inspect to ensure correct installation of all installation according to the following table Mechanical Installation Items Inspection No deformation and damage to inverter Inverter s bottom is fixed and the support is stable and reliable Smooth flow of cooling air The ambient temperature humidity and ventilation satisfy requirements Complete and reliable sealing protection of cabinet 8 po able 0 Enough space is left around inverter 8 irements 8 po o powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Electrical Installation Inspection Complete and firm grounding of inverter Grid voltage matching the rated input voltage of inverter Correct phase sequence of grid connection and tightening torque meeting requirements C
25. erter com rowatt 8 3 Growatt Factory warranty This certificate represents a 5 year warranty for the Growatt inverter products listed below Possession of this certificate validates a standard factory warranty of 5 years from the date of purchase Limited Product Warranty Applicable under normal application installation use and service conditions Growatt warrants the above listed products to be free from defects and or failure specified for a period not exceeding five 5 years from the date of sale as shown in the Proof of Purchase to the Original purchaser The warranties described in these Limited Warranties are exclusive and are expressly in lieu of and exclude all other warranties whether written oral express or implied including but not limited to warranties of merchantability and of fitness for a particular purpose use or application and all other obligations or liabilities on the part of GROWATT unless such other obligations or liabilities are expressly agreed to it in writing signed and approved by GROWATT GROWATT shall have no responsibility or liability whatsoever for damage or injury to persons or property or for other loss or injury resulting from any cause whatsoever arising out of or related to the modules including without limitation any defects in the modules or from use or installation Under no circumstances shall GROWATT _ be liable for incidental consequential or special damages howsoever caused l
26. g tomorro Growatt New Energy CO LTD www ginverter com rowatt be familiar with the local laws and regulations and safety requirements lt Read this manual carefully before operation The equipment will not be under warranty if failing to operate according to this manual Operation on the inverter must be for qualified electrical technician only When inverter operating don t touch any electrical parts except for the touch screen All electrical operation must comply with local electrical operation standards Warranty service for the inverter does not contain module maintenance A Permission from the local utility company is required before installing the PV Grid connected system and only professional personnel are qualified for the operation 2 1 Installation Proper installation requires following all the instructions in the user manual involving transportation mounting wiring and commissioning Growatt does not cover warranty for the inverter damage due to failing to use it properly 2 2 Operator Inverter installation and service personnel must be trained and familiar with the general safety requirement when working on electrical equipment Installation and service personnel should also be familiar with the local laws and regulations and safety requirements 2 3 Inspection and storage The inverter should be carefully checked before signing the document from the transportation company Check the received ite
27. he emergency stop button the device will be locked in the off position Only release the emergency stop button by rotating it clockwise and closing AC DC breaker can the inverter resume working normally Off on knob It is used to start or stop the inverter 15 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt Figure 3 3 I 4 Off on knob Touch screen It displays the inverter s operating parameters power generation and faulty information record Please refer to Section 6 for details 3 4 Operation mode There are several operation modes of the inverter 3 4 1 Standby mode The standby mode refers to powering up the inverter for the first time since installation but there is not enough power to connect to the grid When there is enough power from the PV array it will transfer to grid mode 3 4 2 Grid mode Process of inverter connecting to the grid 1 PV array connects to the inverter input and the inverter output connects to transformer then to the utility grid 2 Close AC and DC breaker and inverter will enter into standby mode 3 When input voltage exceed 450V inverter startup voltage can be set on LCD minimum voltage is 450V the inverter will connect to the grid powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt 4 Grid connected inverter will check if the current state meets all the conditions to connect to the grid before it actually co
28. id L2 3 The W of the AC output is connected to the grid L3 su v w OUT PUT 34 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Figure 4 4 4 AC output wiring 4 4 5 Earthing Inverter must be earthing well for safety Please make sure of the connection between PE in power distribution cabinet and PE copper in the inverter good and make sure the earthing cable more than 185mm and the earthing resistance must satisfy the demand of IEC standard Figure 4 4 5 PE copper in the inverter 35 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Caution risk of fire hazard All wiring into the channel at the bottom of the inverter to be all the wiring is completed the connection port must be sealed with dust cotton to prevent dust from entering the inside of the inverter Caution risk of danger 4 5 Communication The inverter of Growatt CP series has various communication methods When the user needs to monitor the operating status of PV power generation system we provide single machine and multi machine control programs and diversified communication interfaces for customer s selection 4 5 1 RS485 communication The inverter through RS485 tandem is connected with the PC for communication through RS485 RS232 adaptor Inside the PC a multi machine monitoring software ShineNet independently developed by the Growatt is monitoring in real time the op
29. ion or maintenance of equipment the inverter will be physically cut off the connection to the grid in order to protect operating personnel working in the electricity grid and the inverter is in compliance with the relevant standards Lightning protection Inverter built in lightning protection module has the DC AC side lightning over voltage protection to avoid inverter from being damaged More protection features please refer to the section 6 3 3 6 Storage If there is a long time before installation or operation the Growatt CP 500TL should be stored appropriately lt The packaging should be restored to its original state lt gt Retain the desiccant in the packaging lt The Growatt CP 500TL can only be stored when it is stopped and all the doors are closed in a dry room to protect the internal circuits against dust and moisture Storage temperature range 40 55 C Storage relative humidity range 5 95 Operating temperature range 25 55 C Operating relative humidity range 5 95 Max altitude 2000 m 18 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 1 3 7 Dimension Growatt CP250 Size W H D mm 1600 2100 850 Dimension 3 7 Inverter dimension 3 8 Label Inverter label is affixed on the inverter which contains model and specification information Do not attempt to tamper with the label information and the inverter will not be under warranty if the
30. ms against delivery note and if there is any defect or damage immediately notify the transportation company If necessary you can seek help from Growatt Customer Service department powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 2 4 Transportation Transportation should follow the transportation methods described in the user manual The inverter s weight and center of gravity of the non centered should be taken into account during transportation The center of gravity has been marked on the box Caution risk of danger 2 5 Installation The protection level of the inverter is IP20 which is designed for indoor installation Please refer to chapter 4 for installation instruction The installation location must be dry including no expected condensation The inverter is only for use in a closed electrical operating area When the photovoltaic array is exposed to light it supplies a D C voltage to the PCE powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Caution risk of fire hazard 2 6 Repair and maintenance Repair and maintenance can only be carried out after disconnecting the DC and AC wiring for at least 5 minutes Only professional technical personnel are qualified for the operation Disconnecting switches Disconnect DC switch and AC switch and make sure the inverter will not be connected accidentally Ensure the inverter is totally disconnected with no voltage
31. nnects The power generation is automatic The inverter will detect if DC input and AC grid meets all conditions When all conditions are met 1t will enter into grid mode When the grid is abnormal inverter will immediately disconnect from the utility grid and immediately enter into the fault state In this mode inverter will convert the DC power into AC power and feed into the grid Meanwhile inverter will output the power from the PV array in the MPPT Maximum power point method and grid mode is also called MPPT mode 3 4 3 Faulty mode When the PV power system failure the inverter will immediately disconnect the AC contactor and enters into the fault mode so as to ensure the safety of the system Inverter continuous monitors 1f the fault is eliminated The inverter will not enter into the grid mode until the fault 1s eliminated 3 4 4 Permanent faulty mode When the PV power system is in serious failure the inverter will immediately disconnect the AC contactor and enters into the Permanent fault mode so as to ensure the safety of the system For example inverter module failure etc When inverter enter into permanent failure mode do not repair the inverter and you should get in touch with the local dealers or call Growatt customer service department for help K powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 3 5 Protection Anti islanding When the local power grid shutdown due to malfunct
32. nverters whose packages are not demolished can be moved with forklift hoisting crane or crane In moving attention shall be paid to the weight painted on the package to ensure enough load capacity of the devices As the gravity center of the equipment locates at the lower place symmetrical in front and back and left and right the support point or hoisting point shall be arranged reasonably in transportation The forklift transportation is the standard one The gravity center of the cabinet in transportation should locate between two forks of the forklift The big size inverter may block driver s sight and it shall be treated with cooperation of the aid personnel 4 3 2 Movement and installation of bare machine Demolish the package of inverter Please demolish the packaged cabinet of the equipment according to the following procedures 26 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Procedure 1 Demolish the wood side and roof of the packaged cabinet Procedure 2 Demolish the out set package material on the machine Procedure 3 Demolish the fastening screws between the machine and the pallet 1 Demolish the front and back cover lids of the pedestal 2 Screw off the hold down nuts at the bottom of the wood pallet 8 Remove the screws and the inverter will depart from the wood pallet The inverter must be installed on the foundation or foundation plate therefore all fastening points wall anchor and
33. oblem with the utility grid or the inverter 1s disconnected manually the inverter will shut down immediately to avoid islanding When the grid restored to be normal inverter can automatically start Normally there is no maintenance or calibration required however the dust screen should always keep clean It needs to be replaced 56 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt when it is dirty Procedure of the dust screen replacement 1 The front and back cover can be seen after opening the front and back cover of the inverter 2 Open front and back dust cover from the bottom of the dust cover 3 Take away the dust screen and insert a clean one 4 Place the dust cover in the original place and fix it Figure 7 1 Dustproof device 0 i 7 2 Regular maintenance In order to ensure the normal operation of the inverter regular maintenance work is required Recommended routine maintenance cycle and work as shown in Table 7 2 Table 7 2 Routine maintenance work maintenance item cycle Read data from data logger clean heat sink of the power module 57 Growatt New Energy CO LTD www ginverter com Check the dust moisture or condensation inside the cabinet Check the cable connections and fix the screw if necessary Check the warning label add or replace some if necessary Manual checks AC and DC circuit breakers Check that the emergency stop button and the LCD stop function
34. omagnetic emission impact on the environment Inverter may generate some noise and electromagnetic radiation during operation According to EMC emission and noise level inverter should be used in industrial environments Hence all personnel should not stay long near the inverter 2 8 Important note 1 Item 1 Static electricity can cause damage to the inverter amp Electrostatic discharge may cause unrecoverable damage to inverter internal components When operating the inverter operator must comply with anti static protection norms Item 2 Restriction The inverter cannot be directly used to connect the life support equipment and medical equipment Item 3 Precautions Make sure installation tools or other unnecessary items are not left inside the inverter before starting up Item 4 Maintenance notice Maintenance can only be carried out after the inverter totally discharged 10 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 3 Product description 3 1 Grid connected PV system Growatt CP series inverters are grid connected central inverters which convert DC current generated by PV modules into AC current and feed it into the public grid PV inverters always act as key components Grid connected PV system shown as below t Pm S em pm A Figure 3 1 Grid connected PV system 1 we 3 2 Electrical schematic of the inverter 3 2 Circuit diagram the inverter Gr
35. ood The installation environment shall be clean gt As some noise will be produced in operation this equipment shall be installed far from residential quarters lt gt The installation ground shall be even enough and firm enough to support the weight of inverter lt gt The installation position shall be convenient for maintenance lt Ambient temperature range 25 C 55 C lt Appropriate space shall be reserved for the machine to ensure ventilation and cooling We suggest inverter 1s installed in the distribution room The floor wall clearance Ventilation equipment and precaution should be designed by professional personnel and satisfy the following requirements Foundation requirement Inverter is required to install on even ground with fire retardant material as the surface or channel steel support structure and sag or tilt ground 1s prohibited The foundation shall be solid safe and reliable The foundation shall be capable of bearing the load of the inverter Its load bearing ability shall be concerned throughout the installation place selection Clearance space During installation of the inverter appropriate space shall be left to the wall or other equipments in order to satisfy the requirements on narrowest maintenance channel emergency access and ventilation In front of the installation place of inverter a space of 1 5m or more shall be ensured the back 21 powering tomorro Growa
36. orrect connection of DC input anode and cathode and tightening torque meeting requirements Correct connection of communication lines and maintaining a certain distance to other cables Correct and legible mark of cable No Complete and reliable insulation shields and legible and firm label of danger warnings Other Inspections All useless conductive parts tied with insulating ribbon No tools spare parts conductive dust generated from drilling or other matters left inside the cabinet No condensed humidity or icing inside the cabinet Table 4 6 Installation Inspection List 5 Pilot operation The chapter will introduce the procedure of pilot operation including checking PV array voltage input and output connecting other preparation working 5 1 Relevant requirements Before pilot operation the installation conditions of the equipment shall be examined thoroughly in particular whether voltages at DC and AC ends are consistent with inverter s requirements and whether the polarity etc are correct Inspect if the system connection meets requirements in relevant standards or codes and if the system is grounded well bei 1 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt 5 2 Inspection 5 2 1 Inverter inspection Before power on the inverter please carry out inspections as the following procedures Procedure 1 Inspect inverter s installation and wiring conditions based on the Inst
37. oss of use loss of production loss of revenues are therefore specifically and without limitation excluded to the extent legally permissible GROWATT _ s aggregate liability if any in damages or otherwise shall not exceed the invoice as paid by the customer The Limited Product Warranties described above shall not apply to and Growatt shall have no obligation of any kind whatsoever with respect to any inverter which has been subjected to Misuse abuse neglect or accident Alteration improper installation or application Unauthorized modification or attempted repairs Insufficient ventilation of the product Transport damage Breaking of the original manufacturers seal Non observance of Growatt installation and maintenance instruction Failure to observe the applicable safety regulations Power failure surges lighting flood fire exposure to incorrect use negligence accident force majeure explosion terrorist act vandalism or damage caused by incorrect installation modification or extreme weather conditions or other circumstances not reasonably attributable to Growatt The warranty shall also cease to apply if the product cannot be correctly identified as the product of Growatt Warranty claims will not be honored if the type of serial number on the inverters have been altered removed or rendered illegible 60 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt
38. owatt CP250 PV grid connected inverter converts DC current generated by PV array into AC current Then the AC current is filtered into sine wave electricity and fed into the utility grid through a medium voltage isolating transformer The additional external isolating transformer shall be connected between inverter and local power grid by customers This transformer shall be met requirement of local grid and tests about external isolating transformer must be passed successfully according to relevant safty standards clearance distance creepage distance dielectric strength test etc Il powering tomorro Growatt New Energy CO LTD www ginverter com rowatt DC switch inverter LC filter LF ACEMC AC module transformer breaker Figure 3 2 1 Growatt CP250 circuit diagram 1 3 3 The layout of the main components 3 3 1 External components External main components include LED indicator LCD touch screen and start stop knob emergency stop button the DC side switch and the AC side switch powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt aA uw amp Ww NS Figure 3 3 I I Inverter appearance Power indicator When power supply is normal the indicator displays yellow Inverter malfunction indicator When inverter is faulty the indicator displays red touch Screen LCD Operation information display receive control command and parameters setting Off on knob only control the grid side
39. powering tomorrow Growatt New Energy Technology CO LTD www ginverter com rowatt Growatt CP250 PV Grid Connected Inverter Installation Manual Thank you for choosing the Growatt CP250 Growatt CP250 PV grid connected inverter products have high efficiency wide MPPT voltage range advanced DSP control technology perfect protection function enables PV systems more reliable operation simple to operate easy to maintain We believe that the product will be more widely used in a variety of industrial commercial and residential areas powering tomorro Growatt New Energy CO LTD www ginverter com rowatt Content Eeer dee Mantal EE EE EEE EE 4 EEG EEE 4 LINN 4 kao Howton etik Mimih ee a a 5 LA Symbols explana OM issiria inia Paa nia niano ii ina R R 5 Dae by Wile RC OMS EN 6 TT 2 TEE 7 2 3 WASPECHOM and Kee 7 DF Tan pona 6 E 8 EE Ee a E E E A E E E E E E E E 8 26 RNA 9 2 1 ee Te Be oaeesoueeaunaet 10 29 he GERE EE 10 Pod 11 MEN 11 e diagrami Ne INVETE Ge 11 3 3 The layout of the main components orrrrrrrrorrnnrnrnnnnnnronrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 12 TERRE copon ee 12 Jt Operan ModE EE 16 Eh EES 16 DA GING ee SEE EE EE 16 os so EE L E NE 17 344 Permanent NN 17 Dr 18 TE 18 GP PMA CUS WOU eegen 19 El 19 PTR S N 20 eet EE E 21 4 1 Installation condition requirement rrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnne 21 4 2 Tools and spare parts required for whole ma
40. switch and does not control the DC side switch 13 Growatt New Energy CO LTD www ginverter com Emergency STOP Shut down the inverter when pressed down DC Switch connect or disconnect the inverter and PV modules 7 Grid Switch connect or disconnect the inverter and utility grid Dust screen prevent dust from entering into the inverter Figure 3 3 I Part description Indicator The inverter is designed intelligently which will automatically start and stop working every day There are two LED indicators on the inverter which is used to display the current status of the inverter POWER FAULT Figure 3 3 1 2 LED indicators The indicator lights when power supply to the inverter is normal The indicator lights when power supply to the inverter is normal Figure 3 3 2 LED status AC DC main switch AC switch is used to connect or disconnect the inverter and utility grid DC switch is used to connect or disconnect the inverter and PV modules If the AC switch is used in the case of load the inverter components will be exposed to considerable stress Frequent use of the AC switch will 14 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt lead to damage of the inverter Emergency STOP Figure 3 3 1 3 Emergency STOP The emergency stop button immediately disconnects the inverter from both grid and PV arrays which ensure the safety of the inverter By pressing t
41. th the method of Step 7 Step 9 Confirm the wiring is already firmly 32 powering tomorrow Growatt New Energy CO LTD www ginverter com rowatt PV terminal PV terminal PV Field Figure 4 4 3 DC input wiring 4 4 4 AC side wiring Caution risk of danger AC side of the inverter and the grid side wiring method is as follows Step 1 Disconnect the grid side disconnect switch disconnect the inverter AC open space with a multimeter measurements confirm that the terminal block power outage Step 2 Make sure the AC connection cable order Step 3 Stripped end of the cable insulation Step 4 Crimp the copper nose 1 The of stripping good thread bare copper conductor part on the wiring copper nose pressure line hole 2 The wiring copper nose pressed Crimping Machine crimping the number should be in the more than two Step 5 Install heat shrink tubing 33 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt 1 Select cable size is more in line with the heat shrink tubing choose the length of about Scm 2 Heat shrinkable sleeve over in the Wiring copper nose to completely cover the wiring copper nose pressure line hole fit 3 With a hot hair dryer to heat shrink tubing tightening Step 6 Selection and wiring copper nose meets the screw connection with the grid side wiring 1 The AC output of the U is connected to the grid L1 2 The V of the AC output is connected to the gr
42. tt New Energy CO LTD www ginverter com rowatt 0 6m or more the top 0 6m or more to ensure easy installation cooling and maintenance gt D Figure 4 1 1 required Clearance space Cable trench The cable connection of inverter adopts bottom inlet and bottom outlet Cable trenches are recommended The cable trenches are often designed and constructed by the construction side based on relevant standards with the equipment weight and dimensions required to be considered Good electrical connection is needed between different cable trenches and GND terminals Wiring specification Cables in the inverter can be classified into either power cables or data cables In cabling the power cable shall be kept far away from and the cable shall be kept in right angle at cross The cable shall be as short as possible and an appropriate distance shall be kept to the power cable We suggest the DC PV and PV insulation resistance is more than Vmax PV 30mA The power cable and data access shall be placed in different cable trenches respectively to avoid lengthy routing between the power cable and other cables so as to reduce the electromagnetic interruption caused by sudden change of the output voltage The distance among the power cable and data access shall be more than 0 2m When the cables are crossed the cross angle shall be 90 22 powering tomorro Growatt New Energy CO LTD www ginverter com rowatt degrees while the distance can be
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