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1. leo NC Green leo lo B Ben RS485 bus connection method The connection between B amp B Inverters uses a straight through cable But the connection between B amp B Inverter and Webbox uses a crossover cable As shown in the following figure Daisy chain bus Straight through Cable Straight through Cable Straight through Cable Crossover Cable RS485 RS485 RS485 RS485 RS485 B amp B Inverter B amp B Inverter B amp B Inverter B amp B Inverter Webbox Inverter RS485 Signal Webbox RS485 Signal NC NC NC GND GND NC A B RJ45 connector Figure 36 B amp B Web Box Monitoring Diagram 28 m Connect the system by RS485 RS232 Adapter Grid tied Inverter Grid tied Inverter RS485 RS485 RS485 adapter Figure 37 Bluetooth Communication optional Bluetooth module is a hardware device can be inserted to inverter s RS232 port Please refer to B amp B Bluetooth module Manual for more information 29 9 Troubleshooting In most situations the inverter requires very little maintenance However if Inverter fails to work perfectly please refer to the following instructions before calling your local dealer Should any problem arises the LED on the front panel will be red and the LCD will display the relevant information Please refer to the following table for a list of potential problems and solutions Table 14 Troubleshooting list Waiting for one minute grid will go bac
2. DIP switch SW1 Requests the user to consult the manual Indicates caution followed by important instructions CY AC voltage Equipment grounding conductor You can operate the interface by tapping on it Tapping once The background illumination switches on Tapping again Updating information Recovery and recycling e Symbols on the type label Explanation CE mark The inverter complies with the requirements of the applicable CE guidelines TUV mark The inverter complies with the requirements of the applicable TUV guidelines SAA mark The inverter complies with the requirements of the applicable SAA guidelines e Important Safety Instructions When using the product please do remember the below information to avoid the fire lightning or other personal injury Warning Ensure that input DC voltage is less than Max DC voltage Over voltage may cause permanent damage to inverter or other losses which will not be included in warranty This chapter contains important safety and operating instructions Read and keep this operation Guide for future reference Warning Authorized service personnel must disconnect both AC and DC power from the B amp B Power series inverter before attempting any maintenance or cleaning or working on any circuits connected to the B amp B Power series inverter Warning the photovoltaic array is exposed to light it supplies a d c vol
3. Work mode of the Inverter It includes PV Mppt Dc In Factory Test IN1 amp IN2 PV1 and PV2 Independent IN1 amp IN2 P PV1 and PV2 Parallel Date the present date of the inverter Time the present time of the inverter Setting language In the SETTING page double tap to activate the Setting function Language item become bright Lang then double tap again enter to change the language option tap to select the language and wait until the display become dark But only English is available at now Setting communication address When several inverters are connected to the same communication channel each unit must have a different address In the SETTING page double tap to activate the Setting function Language item become bright Lang then tap again Com Address item become bright Addr then double tap enter to change the Com Address option tap to select the Com Address and wait until the display become dark Setting working mode If B amp B Solar Inverter need change working mode when it is first installed it can be set by BB 25 Solarlnv Setting Tool BB Solarinv Setting Tool a Device Inverterl ComPort COM3 s 2 Mppt Independent 5k Series IE Normal 3k Series 2 Mppt Independei Clear Command 2 Mppt Parallel 5k Series coevo Eco Geri Inverter Time Setting Inverter Time 2012 12 06 12 03 43 PC System Time 2012 12 06 12 03 05 2012 12 06 120024 User Defined 26 8 Setting up
4. the inverter has no fault the symbol will disappear 7 2 2 Message Page MESSAGE Operation Condition Power Derating reason symbol and grid standard Waiting 1 Grid Fault Warning or fault info Figure 26 The system status is identified through the MESSAGE page the first line displays inverter operation condition Waiting Mode Self Testing Mode On grid Mode and Fault Mode The following images are the symbol of power derating reason when inverter occurs power derating y Indicate input voltage values are too high or too low H Indicate the ambient temperature is particularly high i Indicate frequency derating 22 After the symbol of power derating reason is Real time working mode symbol N PV Mppt SF1600TL SF2200TL SF3000TL PV1 and PV2 Mppt independent SF3600TL SF4200TL SF4600TL SF5000TL P PV1 and PV2 Mppt parallel SF3600TL SF4200TL SF4600TL SF5000TL D DC Source In Factory Test The following symbol is Real time grid standard G Germany A Australia From the second line the LCD displays inverter s warning or fault information Fault Information is listed as the following table Table11 The internal hardware that measures ground fault has measured Leakage Fault l l substantially high ground currents Grid Fault Grid Voltage or Frequency out of range Boost Fault Boost DC DC Power Stage fault PV Over Voltage PV panel Voltage too high Relay Fault The AC relay failed DCINJ High Output
5. 5000TL Max AC 1600 2200 3000 3600 4200 4600 5000 Power W z AC Voltage Range 230 207 253 230 207 253 V AC Grid 50 60 50 60 Frequency Hz Power Factor 0 99 0 9lagging 0 9leading cosQ THD at nominal 396 lt 3 power D mf IH IH Category 4 3 Efficiency Safety and Protection Table5 SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL Max Efficiency 97 5 97 6 97 6 98 0 98 0 98 0 98 98 0 Euro Efficiency Nominal PV 96 8 96 9 97 0 97 3 97 4 97 4 97 5 Voltage 370V mim om om om om fo Overvoltage Under Voltage Protection PEC IC PAU d S Yes Yes Voltage Start DC Isolation Impedance Yes Yes Monitoring em Ground Fault tronco Grid Monitoring Grid Monitoring Ground Fault Current Monitoring DC Injection Monitoring 4 4 General Data Table6 SF3600TL SF4200TL SF4600TL SF3600TL SF4200TL SF4600TL SF5000TL Dimension W H 386 340 155 386 420 155 D mm Cooling Concept Convection Convection 10 Noise typical dB Operating Temperature 20 C 60 C derating at 45 C 20 C 60 C derating at 45 C Range C Relative humidity 4 100 condensing 4 100 condensing range Pollution Degree E External IIl Internal II External IIl Internal Il Degree Ld IP65 IP65 E Topology Transformerless Transformerless Internal Consumption ni 0 5W 0 5W ght W LCD displa
6. Communication 8 1 Communication Interface Type This product has a communication interface RS232 RS485 and Bluetooth optional Operating information such as output voltage current frequency fault information etc can be delivered to PC or other monitoring equipment via RS485 8 2 Communication When user want to know the information of the power station and manage the entire power system We offer below three types of communications RS232 Communication One inverter RS232 is one standard communication interface For communication cable one end is male connector the other end is female connector Grid tied Inverter Max 12m Figure 33 RS232 Communication Diagram Figure 34 Communication Interface of B amp B Series Inverter RS232 Pin Definition Table12 en 3 Ta sa I RS485 Communication One inverter or several inverters RS485 is generally for multi inverters communication Up to 32 inverters could communicate at the same time but wire length should be lt 1200m Select high quality network cable peel the isolation surface Select 8 wires orange white orange green white blue blue white green brown white brown then follow the same order with the press pliers push into the 8 wire RJ45 crystal head 27 Figure 35 8 line RJ45 Table13 8 line RJ45 Orange white ad ne 3 Nc Green white 4 GND Be GND Bue white
7. Connecting to the grid 1 Measure grid voltage and frequency It should be 230VAC 50HZ and single phase 2 Open the breaker or fuse between inverter and utility 3 For inverter connect AC wires as follows Figure 20 Below is the AC cable specification table when select the cable for installation Table 7 Cable and Micro breaker Requirement Model SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL Cable Cu 4mm 4mm 4mm Micro Breaker 25A 32A 19 7 Operation 7 1 LED Display The panel has three LED indicators as follows Red LED Green LED Green LED LCD Figure 21 7 1 1 DC DC status LED Green Table8 Blinking The DC DC Circuit is starting The DC DC Circuit is working normally 7 1 2 DC AC status LED Green Table9 Blinking The DC AC Circuit is starting The DC AC Circuit is working normally 7 1 3 Fault LED Red Table10 2 0 a The inverter is in fault status Normally after starting up DC DC LED and DC AC LED will be lighted indicating that the Inverter s feeding power status to the grid 7 2 LCD Display The LCD display monitors the inverter status and collects statistical data for assessing system performance Once turn on Logo B amp B Power will show on the LCD display after a few seconds the index display image will appear TM B amp B B amp B Power Drive the Future Figure 22 The display on the inverter can
8. Current DC Offset too high The RCD measurement mechanism has failed during the wake up RCD Fault test phase Inverter DC AC Power Stage fault Boost DC DC Power Stage over current Inverter DC AC Power Stage over current 7 2 3 In amp Out page The inverter parameters will be displayed in this page IN amp OUT Figure 27 SF1600TL SF2200TL and SF3000TL 23 Figure 28 SF3600TL SF4200TL SF4600TL and SF5000TL OUTPUT Figure 29 SF3600TL SF4200TL SF4600TL and SF5000TL Vpv Voltage for battery array Ipv Current from battery array Vpv1 Voltage for battery array 1 Ipv1 Current from battery array 1 Vpv2 Voltage for battery array 2 Ipv2 Current from battery array 2 Vgrid Grid Voltage Fgrid Grid frequency lout Current exported to the grid Vbus DC bus voltage of the inverter 7 2 4 Power Chart Page POWER CHART H Bn f 34 T Figure 30 Graph of the power produced in the present day from 4 to 22 hours will be displayed in this 24 page 7 2 5 Information Page INFORMATION SN SEXXXXXXXXXXX Sw Ver V100V100 B amp B Power Co Ltd www bbpower cn Figure 31 SN provides the production No of the inverter SwVer provides the production Firmware version of the inverter 7 2 6 Setting Page SETTING Country XXX Lang English Addr 1 Mode PV Mppt Date yy MM dd Time hh mm ss Figure 32 Country The country of the Inverter can work Mode
9. Solar Family PV Grid tied Inverter User Manual B amp B B amp B Power Drive the Future Copyright Declaration The copyright of this manual belongs to B amp B Power Co Ltd Here after to be referred as B amp B Power Any corporation or individual should not plagiarize partially copy or fully copy it including software etc and no reproduction or distribution of it in any form or by any means All rights reserved B amp B Power reserves the rights of final interpretation This information is subject to modify without notice Table of Contents ioca cn a P l FEN a e IR 1 RICER A AN NONE I kood oN T e I A ati ge el A T 5 ZIONI WV SINN O C Mc c Mc sU 3 22 BIecttic al Block Diari rd daa di aia 5 2o Tetintnals OL VIVE 6 2 Dimension and Wed della 6 ERICK So citada aa bd 8 AP SC IMIG D Ao 9 PTPU DE I qt HE EE 9 LOUIE ella 9 4 3 Efficiency Safety and Protection eene nennen nnns 10 A AGI M DIR RARO RR LAI 10 A bella 12 IRE ZU RE RE RR A IA AAT 13 O21 Safe IMS UCTIONS ea aiaa aa ari 13 6 2 Selectinp the Installation location secco xen si uen Dad A RAN A aa 13 63 Preparada dudas dadas 14 64 Fixed the Mounts onthe Walla idilio 14 6 5 Fixed the Inverter on the Wade ia tube i 16 6 6 Check Inverter Installation Staus erii eau tnde A alias 17 67 ome cio Guide a 17 AU AAA iii 20 DAME DAS LAY EET 20 A T UT PEE 21 S SeliNg up COMMUNICA ON a
10. ad For protection against electric shock connectors must always be disconnected from the power supply during assembly Connectors that are not plugged must be protected against humidity and contamination by a protective cap Any kind of contamination may have adverse effect on the system and great care must be taken during assembly to ensure that everything is clean Connectors provide IP68 protection but should not be continually exposed to water e g immersed under water and not placed directly on the top side Connecting to PV panel DC input Figure 16 1 Insert the stripped conductor Cross sections 2 5 to 6 mm Outside diameter 5 0 to 8 mm Stripping length 15 mm 2 Close spring with the thumb or using combination pliers 17 Please ensure that the spring is closed see fig14 3 Push connectors together see fig15 Screw cable gland tight Screw in the nut until it reaches the O ring and then tighten it with at least 2 Nm using a suitable tool Finished Connector socket unlocking process Figure 17 1 Insert screwdriver SZF 1 or phase tester in one of the illustrated positions 2 Leave screwdriver inserted and remove connector from socket Conductor reconnection to the Figure 18 1 Screw on the cable gland 2 Never open the interlock as shown in the figure by using the screwdriver 3 Pull plug connectors apart 4 Open spring with screwdriver and remove conductor 18 Figure 19
11. be controlled by tapping the front of LCD To save power the LCD display s backlight will turn off automatically after 30 seconds When the LCD is dark one tap will make it become bright again A summary diagram of the display functions is shown as the figure below the LCD will show next page by tap Setting Setting lt C5 Power Chart Power Chart Figure 23 Summary diagram of SF1600TL SF2200TL SF3000TL s LCD Setting Information lt Power Chart Power Power Chart Figure 24 Summary diagram of SF3600TL SF4200TL SF4600TL SF5000TL s LCD 21 7 2 1 System Page SYSTEM XXXXX XXXXX XXXXX Power Status Fault Status Waiting Operation Mode Figure 25 Power the present power fed into the grid Today Energy exported to the grid during the present day and updated once per hour Total Sum of the total energy exported to the grid and updated once per day To ensure a safe operation of the inverter under any temperature and electrical condition the unit will automatically derate the power to be supplied to the grid M Indicate Power No Derating lu Indicate Power Derating If the Power derating occurs the detailed reason will show in MESSAGE page Next to the Power status symbol the LCD displays operation condition Waiting Mode Self Testing Mode On grid Mode and Fault Mode H Indicate the inverter occur some faults and the detailed information will show in MESSAGE page If
12. d or failure specified for a period not exceeding five years from the date of sale as shown in the roof of Purchase to the original purchaser 33 12 Contact B amp B If you have any questions about B amp B series inverter please call service support hotline 86 755 8656 7100 Please keep following information to better our service for you Please note and advise below information to us before inquiry for better service a Inverter s Model b Inverter s Serial No c Communication Method d PV Modules Model B amp B Power Co Ltd Marketing amp Sales Office Sales amp Marketing Department Add B Block Junxiangda Building No 9 Zhongshan Park Rd Nanshan District Shenzhen China Tel 86 755 8656 7096 Fax 86 755 8656 7102 Web www bbpower cn E mail sales6 bbpower cn Info amp Service Office Tel 86 755 8656 7096 Fax 86 755 8656 7102 E mail service bbpower cn 34
13. following conditions e The ambient temperature is beyond the range of the optional temperature limitation 20 C to 60 C 4 F to 140 F Power derating begins at 45 C e Installation altitude is higher than 2000m e Prone to be damaged by sea water e Close to corrosive gas or liquid for example locations where chemicals are processed or the location where feed lots of poultry e Exposed to direct sunlight e Prone to be damaged in flooding or icing time e Little air flow or high humidity e Exposed to steam vapor or water e Exposed to direct cool air e Close to the television antenna or antenna cable 6 2 Selecting the Installation location The installation method and mounting location must be suitable for the weight and dimensions of the inverter Select a wall or solid vertical surface which is able to support the PV Inverter Mount on a solid surface the mounting location must be accessible at all times Vertical installation or tilted backwards by max 15 13 The connection area must point downwards Do not install horizontally Figure 9 6 3 Preparation Below tools are needed before installation Figure 10 installation Tools 6 4 Fixed the Mounting on the Wall Inverter requires adequate cooling space Allow at least 20cm space above and below the inverter y y Y i Y s Figure 11 Using the mounti
14. k to normal working state Making sure that grid voltage and frequency complies with standards Or please seek for help from us Grid Fault Off to grid Please check grid connection like wire interface etc Checking grid usability Or seek for help from us Checking the panel s open circuit voltage whether the value is similar or already Max DC voltage PV Over Voltage Please seek help from us when voltage lt Max DC voltage Disconnect the PV PV with DC input then reconnect them Check L line and N line to see whether it DCINJ High has connection faults Please seek for help from us when this fault happens Disconnect the PV PV with DC input then reconnect them Relay Fault Please seek for help from us if it can not go back to normal state e Check the warning or fault messages on the information panel Record the message if displayed for further action e Try the solution indicated in Table 14 e If your inverter information panel didn t have a Fault light check the following list to make sure that the present state of the installation allows proper operation of the unit s the inverter located in a clean dry ventilated place Have the DC input breakers been opened s the size amp length of cables suitable 30 Are the input and output connections and wiring in good condition Are the configurations settings correct for your particular installa
15. l parts All wiring and electrical installation should be conducted by a qualified service personnel and must meet national requirements Both AC and DC voltage sources are terminated inside the PV Inverter Please disconnect these circuits before servicing When a photovoltaic panel is exposed to light it generates a DC voltage When connected to this equipment a photovoltaic panel will charge the DC link capacitors Energy stored in this equipment s DC link capacitors presents a risk of electric shock Even after the unit is disconnected from the grid and photovoltaic panels high voltages may still exist inside the PV Inverter Do not remove the upper lid until at least 5 minutes after disconnecting all power sources This unit is designed to feed power to the public power grid only Do not connect this unit to an AC source or generator Connecting inverter to external devices could result in serious damage to your equipment Carefully remove the unit from its packaging and inspect for external damage If you find any imperfection please contact with your local distributor or service center Although designed to meet all safety requirements some parts and surfaces of Inverter are still hot during operation To reduce the risk of injury DO NOT touch the heat sink at the back of the PV Inverter or nearby surfaces while Inverter is operating Check environment where system is installed Check whether the installation site fall into any of the
16. ng frame as a template drill 3 holes as illustrated in image JHHHHHHI dJHHHH HH AFE A IA ALLEL THHH HHHHHHH TH HH RETI jag IHH HTHH HHHHH Figure 12 Fix the mounting frame as the figure shows Do not make the screws too close to the wall leaving 2 4mm exposed instead Figure 13 15 6 5 Fixed the Inverter on the Wall Hang the inverter onto the mounting frame Figure 14 Insert safety lock screws into the bottom leg to fasten the inverter LI LT LT LITE Li THA HUH KLE HH I f gta A d f a A ti if Y LI Te Ur UIL TT UL TL Figure 15 6 6 Check Inverter Installation Status Check the upper straps of Inverter to ensure it fixed on to the bracket Check the secure mounting of the PV Inverter by trying to raise it from the bottom The PV Inverter should remain firmly attached Select the installation location so that the status of display can be easily viewed Choose a strong mounting wall to prevent vibrations while inverter is operating 6 7 Connector Guide This product has a professional IP68 DC waterproof connector You have to wire DC by yourself Please see figure 14 and 15 for DC connector disassembling guide Connectors must only be connected by qualified personnel Only PV1 F cables can be used The TUV approval only allows the use of PV1 F cables Do not use type HO7RN F cables The connectors must be not disconnected while under lo
17. r persons with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction Children should be supervised to ensure that they do not play with the appliance Caution Danger of burn injuries due to hot enclosure parts During operation the upper lid of the enclosure and the enclosure body may become hot Only touch on the lower enclosure lid is allowed during operation Caution Possible damage to health as a result of the effects of radiation Do not stay closer to the inverter beyond 20cm is available for a long time Note Grounding the PV generator B amp B Power recommends PV modules have an ICE 61730 Class A rating Please don t connect the PV modules to GND 1 3 3 Glossary of Symbols This section gives a glossary of all the symbols shown on the inverter and the type label Symbols on the inverter Symbol Explanation Danger to life due to high voltages in the inverter e There would be residual voltage in the inverter The inverter requires 1 minute to discharging Wait for 5 minutes before you open the upper lid or the DC lid Beware of hot surface The inverter may become hot during operation Avoid any contact to the surface during operation Danger of high voltages Danger to life due to high voltages in the inverter Risk of electric shock Only authorized personnel can be allowed to set the
18. ssiale 27 Sl ECommuni3atton dnteridee persia 2 S WOUNDS SOO Nodo 30 10 DECOMMISSIONING atabidelli 32 TOT Das riba ANS A A E a 32 OA EEE Sta ZERI SARCA A EIA SANTA 32 HORS ESTO Pu ciare 32 KOD DOSE T 32 EG Y r e O OSEP O I 33 12 Contact BAD AA teu tese Meridie ice tuis st icc pe Ee Leib EE 34 1 Notes This manual is an integral part of the inverter Please read the product manual carefully before installation operation or maintenance Keep this product manual for future reference 1 1 Validity This manual describes the assembly installation commissioning and maintenance of the following inverters SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL 1 2 Target Group This manual is for qualified personnel Qualified personnel have received training and demonstrated skills and knowledge in the construction and operation of this device Qualified personnel are trained to deal with the dangers and hazards involved in installing electric devices 1 3 Safety 1 3 1 Appropriate Usage The Solar Family Series are the PV inverters which convert the DC current of a PV generator into AC current and feed it into the public grid PV Module Grid tied Grid Figure 1 PV Grid tied System 1 3 2 Important Safety Instructions Danger Danger to life due to high voltages in the inverter All work on the inverter must be carried out by qualified personnel only The appliance is not to be used by children o
19. tage to the inverter 2 Introduction 2 1 Overview Figure 2 Stereogram 2 2 Electrical Block Diagram e Electrical block diagram DC AC INVERTER B amp B Power Co Ltd Figure 3 Electrical block diagram 2 3 Terminals of PV Inverter RS485 R5485 PAC OUTPUT Figure 4 Terminals of PV Inverter SF1600TL SF2200TL SF3000TL Figure 5 Terminals of PV Inverter SF3600TL SF4200TL SF4600TL SF5000TL 2 4 Dimension and Weight e Dimension 386mm 340mm Figure6 SF1600TL SF2200TL SF3000TL 386mm Figure7 SF3600TL SF4200TL SF4600TL SF5000TL eWeight Table1 Modell SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL in idi 3 Packaging List Table2 s Wem 1 D Mounting Frame Sorews Sleeve Mounting Screws Manual Figure 8 4 Technical Data 4 1 Input DC Table3 SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL Max DC 1700 2350 3150 3800 4400 4800 5200 Power W Max DC power each MPP tracker 1700 2350 3150 3000 B Voltage V Max Input Current of MPP Tracker A Number of MPP Trackers Strings 1 1 2 1 per MPP Tracker MPPT Voltage Range at full 250 500 250 500 power V Nominal PV 370 370 Voltage V Shutdown Voltage 120 150 120 150 Start Voltage V Overvoltage Il Il category 4 2 Output AC Table4 SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF
20. tion Are the display panel and the communications cable properly connected without damage Contact B amp B Power Customer Service for further assistance Please provide your details of installation model amp serial number of the unit to us when inquiry 3 10 Decommissioning 10 1 Dismantling e Disconnect the inverter from DC input and AC output e Remove all connection cables from the inverter e Remove the inverter from the bracket 10 2 Packaging If possible it s better to pack the inverter with the original packing If original packing is not available please use similar packing which meets below requirements e Load ability should be over 20kg e With handle e Able to fully closed 10 3 Storage Store the inverter in a dry place where ambient temperature is always between 20 C and 60 C 4 F to 140 F 10 4 Disposal Please put the wasted inverters amp packing materials to a place which is convenient for relevant department to dispose and recycle 32 11 Warranty Warranty certificate represents a five year warranty service for mentioned products since the date of purchase Warranted Products This warranty is applicable solely to the following products SF1600TL SF2200TL SF3000TL SF3600TL SF4200TL SF4600TL SF5000TL Limited Product Warranty Applicable under normal application installation use and service conditions B amp B warrants the above listed products to be free from defects an
21. y LCD display Backlight 16 4 character Backlight 16 4 character Communication RS485 Bluetooth optional RS485 Bluetooth optional Interfaces 5 10 20 years andar ears Standard 5 10 20 y Free opt opt Warranty Free opt opt 11 5 Function Operation Condition Waiting Mode When the PV string DC voltage is over 120V but not reach to 150V the inverter enters a Waiting mode Under this mode it will continue check if PV array has enough power to feedback into grid Self Testing Mode After initialization is finished in Waiting mode if the PV string voltage is over 150V and the Grid voltage amp frequency meets the standard the inverter will operates in the Checking mode On grid Mode Under this mode B amp B SF series inverters convert PV array s DC into AC and feedback into grid CAUTION The inverter output power decrease is usual in the condition of thermal protection but if it occurs frequently you need to check the heat sink or consider putting the inverter in the place where have better air flow and if output power decreases caused by electrical problem please ask for professional supports Fault Mode If any fault error occurs inverter stops delivering power until the fault error is clear Some fault error will auto recover and some may need manual restart to resolve 12 6 Installation 6 1 Safety Instructions Do not remove the enclosure upper lid Inverter contains no user practica

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