AEG Welding System 2000 User's Manual
Contents
1. AC Grid freq Operating status 1 DC PV voltage Contrast Adj Feeding current LCD display sequence 20 MAXIMUM POWER POINT TRACKING MPPT A good PV inverter must be able to convert the maximum power from any PV panel Due to its advanced design Protect PV PV Inverter can track the maximum power from your PV panel in any condition When the displayed power on the LCD output does not change dramatically Protect PV inverter is converting the maximum power from panels When the LCD power reading is significantly changes Protect PV is tracking the power according to the varied sunlight 1100 A W Fryser GU I Maximfim power point 1 L Oda UU ee ee ee 1125 75 50 25 When the PV panel s output is low the feeding DC power may drift slowly as does the AC power It is because PV Inverter is tracking maximum DC power continuously ACCURACY OF THE READING The reading on the LCD is just for reference We do not recommend using the data for checking or testing of the system Normally its accuracy is around 2 In all ranges of operation the accuracy is up to 5 21 6 INVERTER STATUS Protect PV is designed to be user friendly therefore the status of the Inverter can be easily understood by reading the information shown on the front panel display All possible messages are shown in the following table DISPLAY INFORMATION OPERATING2. High reliability Easy installation Maintenance free e Standard RS 232 optional RS 485 and others Embedded ENS meets VDE 0126 1999 04 VDE 0126 1 1 No external GFCI breaker is required 11 3 INSTALLATION INSTRUCTIONS OPENING THE PACKAGE After opening the package please check the contents of the box It should contain the following One Protect PV inverter Instruction manual One mounting frame 4 mounting screws 2 safety lock screws One AC socket assembly for Protect PV 2000 and 2800 Oy Or B NN BEFORE INSTALLATION Before starting installation please consider the following items This unit is designed for indoor usage Do not expose the unit to wet or moist conditions Do not expose the PV Inverter to direct sunlight Direct sunlight increa ses the internal temperature that may reduce conversion efficiency Check the ambient temperature of installation is within specified range of 20 55 C The AC grid voltage is between 196 and 253VAC 50 60Hz Electric utility company has approved the grid connection Qualified personnel are performing the installation Adequate convection space surrounds the inverter Inverter is being installed away from explosive vapors No flammable items are near the inverter Protect PV can be installed and operated at locations where the am bient temperature is up to 55 C However for optimal operation it is recommended that Protect PV is ins
3. 2 Switch off by breaker or fuse between PV Inverter and utility 3 For Protect PV 2000 and 800 connect AC wires as follows Disassemble female socket Connect AC wires to connection socket as indicated 15 Connect Phase to pin 1 Neutral to Pin 2 and PE to Pin e Assemble the socket again and attach e Twist the coupling ring to the PV Inverters receptacle Make sure it is correctly matched Pin 2 Neutral To prevent risk of electric shock ensure that PE is properly grounded before operating the PV Inverter 4 Suggested wire cross section or AC wire MODEL DIAMETER AREA MM AWG NO MM Protect PV 2000 2 1 29 z 1 5 Protect PV 2800 2 1 63 2 0 16 CONNECT TO PV PANEL DC INPUT 1 Make sure the maximum open circuit voltage Voc of each PV string is less than 450VDC UNDER ANY CONDITION We recommend Voc less than 360VDC with ambient temperature of 25 C 2 Use MC 3 Multi contact connectors for PV array terminals 3 Connect the positive and negative terminals from the PV panel to positive terminals and negative terminals on the PV Inverter Each DC terminal on Protect PV endorses 20ADC Before connecting PV panels to DC terminals please make sure the polarity is correct Incorrect polarity connection could permanently damage the unit Check short circuit current of the PV string The total short circuit current of the PV string should be less than the inve
4. CONDITIONS MESSAGE DESCRIPTION NORMAL WORKING STATUS Power off Nodisplay PV inverter is totally shutdown VPV lt 70V Standby STANDBY 90V Input voltage lt 100V Input voltage range 100 150V during start up After PV Initialization amp waiting READY voltage is higher than 100V inverter is waiting for feeding to grid When PV voltage gt 150V Check grid CHECKINGxxxs inverter is checking feeding conditions Feeding grid MPPT GRID CONNECTED Inverter is feeding power After 10 seconds of this display LED will show wattage FLASH FLASH FLASH firmware Today energy Etoday xxx xxkWh Total energy to has been fed to grid since today MONITORING PARAMETERS Instantaneous Output power Pac xxx xW The real time output power in xxxx W Accumulated energy information Etot xxxxxxkWh Total energy to has been fed to grid since inverter was installed Grid voltage Vac xxx xV Grid voltage in xxx x VAC Grid frequency Fac xx xHz Grid frequency in xx x Hz 22 Feeding current lac xx xA Feeding current amount in XXX A Input volt f PV 8 PV array voltage Vdc xxx xV xxx x VDC SYSTEM FAULT Earth fault of the PV panels or Isolation failure ERR ISOLATION failure of surge voltage protection Leakage current on ground GFCI active ERR GROUND FAULT conductor is too high Grid measured data is beyond Grid failure ERR GR
5. high Unplug the inputs from the PV generator and check the peripheral AC system 3 After the cause is cleared re plug the PV panel and check PV Inverter status If the problem persists please call service Grid Fault Wait for 5 minutes if the grid returns to normal PV Inverter automatically restarts Make sure grid voltage and frequency meet the specifications If the problem persists please call service w N jw N Impedance Fault Grid impedance higher than the permissible value Wait for 5 minutes see if it works again Check the wires between the PV Inverter and grid Replace with larger wires if necessary Adjust impedance parameter by Protect PV Data program If the problem persists please call service No Utility w N gt ja A Grid is not connected Check grid connection cables Check grid usability 27 Inverter Failure PV over Voltage 1 Check the open PV voltage see if it is greater than or too close to 450VDC 2 If PV voltage is less than 450VDC and the problem still occurs please call local service Consistent Fault 1 Disconnect PV or PV from the input restart the PV Inverter If it does not work call service Over Temperature The internal temperature is higher than specified normal value Find a way to reduce the ambient temperature Or move the inverter to a cooler environment If it is not effective
6. improper installation or testing unauthorized attempts to repair or modify or any other cause beyond the range of the intended use or by accident fire lightning or other hazard There are no warranties expressed or implied by operation of law or otherwise of Equipment sold serviced or furnished under this Agree ment or in connection herewith AEG PS disclaims all implied Warran ties of merchantability satisfaction and fitness for a particular purpose The AEG PS express warranties will not be enlarged diminished or affected by and no obligation or liability will arise out of AEG PS rendering technical or other advice or service in connection with the Equipment The foregoing warranties and remedies are exclusive and in lieu of all other warranties and remedies The warranties set forth above constitute sole liability of AEG PS and purchaser s exclusive remedy for any breach of such Warranties The warranties extend only to purchasers and are not extended to any third parties In no event shall AEG PS its officers directors affiliates or employees be liable for any form of indirect special consequential or punitive damages arising out of the use service or installation of the Equipment whether such damages arise in contract or tort irrespective of fault negligence or strict liability or whether AEG PS has been advised in advance of the possibility of such damage WARRANTY EXTENSION The original factory warranty can be exten
7. this warranty may be new or factory remanu factured Repair or replacement of a defective Equipment or part thereof does not extend the original warranty period The AEG PS reserves the rights to modify if necessary the mechanism of the equipment in order to fulfil this Agreement WARRANTY CLAIMS PROCEDURE Should you be experiencing technical issues with your inverters please have your installer or reseller report the case to the country specific AEG PS hotline AEG PS service hotline numbers are available by con sulting the www aegps com website To better assist you your installer will require having the following information readily available Caller s contact information Product type and serial number Installation date Problem occurrence date Problem description and error code Should the service hotline conclude to a replacement of the inverter your installer or reseller will be required to download and complete the appropriate RMA Return Material Authorisation A PDF version of the RMA document can be downloaded from the www aegps com website The system replacement will be facilitated by following and accepting the general terms and conditions mentioned on the second page of the RMA document EXCLUSIONS AEG PS shall not be liable under the Warranty if its testing and exa mination discloses that the alleged defect in the Equipment does not exist or was caused by your or any third person s misuse negligence
8. ID the specification voltage amp frequency No utility NO GRID Utility is not available SOBRETENSION DC Input voltage higher than the Input voltage too high DC OVERVOLTAGE 450V INVERTER FAULT The readings of 2 microprocessors Consistent fail ERR MICROS are not consistent It could be onsistent failure caused by CPU and or other circuits do not function well The internal temperature is Temperature too high OVERTEMPERATURE higher than normal value The relay between inverter Output relay failure ERR AC RELAY and grid is not functional Output DC injection too high HIGH DC LEVEL Output DC injection too high EEPROM inside has data EEPROM problem ERR EEPROM access problem Communication between The communication between ERR COM microprocessors problem MCU inside is abnormal The DC BUS inside is higher th DC bus voltage is too high HIGH DC BUS e expected The DC BUS inside is lower DC bus voltage is too low LOW DC BUS than expected 2 5V reference voltage The 2 5V reference inside are ERR REF 2 5V inside problem Output DC sensor abnormal ERR DC SENSOR abnormal The DC output sensor is abnormal GFCI detection abnormal ERR GFCI The GFCI detection circuit is abnormal 23 INVERTER INFORMATION Model display MODEL PV 4600 Inverter model xkW inverter The top menu of LCD contrast LCD Contrast CONTRAST setting LCD contrast setting SET CONT
9. OPERATING INSTRUCTIONS PROTECT PV 2000 AND 2800 ON GRID SOLAR INVERTER DOC N 07 08 1002 2 Rev 04 POWER SOLUTIONS CONTENTS Before you start Safety instructions Limited Warranty 1 10 Overview Features Installation instructions Opening the package Before installation Mounting Protect PV to the wall Connecting to the grid AC utility Connect to PV Panel DC input Checking System diagram Operating your PV Inverter Modes of operation Front panel Maximum Power Point Tracking MPPT Accuracy of the reading Inverter status Display information LED Communications Trouble shooting Specifications Electrical Typical efficiency charts vs load Regulation amp Certificates Complicance amp Standards 10 11 11 11 12 14 16 16 17 18 18 18 20 20 21 21 23 24 26 28 28 30 30 30 BEFORE YOU START Congratulations on purchasing your Protect PV 4600 Grid PV Inverter from AEG Power Solutions GmbH referred to in this manual as PV Inverter or simply the device This PV Inverter is a highly reliable product due to its innovative design and perfect quality control The device is dedicated to high demand grid linked PV systems This manual contains important information regarding installation and safe operation of this unit Be sure to read this manual carefully before using your PV Inverter If you encounter any difficulties during installation or operation pleas
10. RAST Setting the contrast of LCD Hold th t displ LCD display lock LCD LOCKED te message Waiting f RECONNEC i d The time for reconnect to grid reconnect to grid TIONxxxs Firmware version FIRMWARE xx xx F W version information Setting Language SET LANGUAGE Set up of the display language LCD display Language LANGUAGE ENG Display Language of LCD LED There are 2 LED s on Protect PV one is green and the other is red Normally only the green LED switches on during operation Their indicated status is explained as follows 1 Power on green LED It lights to indicate that Protect PV is running 2 Fault red LED llluminates during a fault or failure Details of possible faults and their solutions can be found in the previous table 24 7 COMMUNICATIONS Protect PV is equipped with a powerful communications interface and options Use Protect PV Monitor to monitor the status of your PV Inverter Also qualified personnel can upgrade the firmware using the RS232 port 1 RS232 To use the RS232 port remove the RS232 cover on the bottom side of Protect PV It is a DB9 socket The pin definition is PIN FUNCTIONAL DESCRIPTION N C TxD RxD N C Common N C N C N C N C 5 N C means Connection ole 2 Optional communications port This port is a very powerful exten sion Pr
11. call local service Relay Failure DC INJ High EEPROM Failure SCI Failure High DC Bus Low DC Bus Ref 2 5V Fault DC Sensor Fault GFCI Failure 1 Disconnect ALL PV or PV 2 Wait for few seconds 3 After the LCD switches off reconnect and check again 4 If the message reappears call your local service If there is no display on the panel please check PV input connections If the voltage is higher than 150V call your local service During periods of little or no sunlight the PV Inverter may continuously start up and shut down This is due to insufficient power generated to operate the control circuits 28 9 SPECIFICATIONS MODELL Protect PV 2000 Protect PV 2800 DC INPUT Nominal DC voltage 360 VDC 360 VDC max PV open voltage 500 VDC 500 VDC MPPT range 150 450 VDC 150 450 VDC Working range 100 500 VDC 100 500 VDC Number of MPP Tracker 1 1 max Input current 10 ADC 13 ADC AC OUTPUT Output power 2000 W 2800 W max power 2200W 3000 W Operational voltage 184 264 5 VAC 184 264 5 VAC Operational frequency 50 Hz 50 Hz Current distorsion lt 3 lt 3 Power factor 605 1 1 SYSTEM Display rd 16 ise 16 ar Max efficiency gt 96 gt 96 Euro efficiency gt 95 gt 95 Protection degree IP 43 IP 43 Operation temp 20 C 55 C 20 C 55 C 0 95 0 95 Humidity Standby power Acoustic noi
12. comply with local safety standards and codes the connection system should be designed and implemented by a qualified technician 4 Utility Referred to as grid in this manual is the way your electric power company provides power to your place Please note that Protect PV can only connect to low voltage systems namely 220 230VAC 50 60Hz 18 5 OPERATING YOUR PV INVERTER MODES OF OPERATION There are 3 different modes of operation 1 Normal mode In this mode Protect PV works normally Whenever the supplied power from PV panel is sufficient voltage gt 150VDC Protect PV converts power to the grid as generated by the PV panel If the power is insufficient voltage lt 120VDC Protect PV enters a waiting state Whilst waiting Protect PV uses just enough power from the PV panel monitor internal system status In normal mode the green LED is on 2 Fault mode The internal intelligent controller can continuously monitor and adjust the system status If Protect PV finds any unex pected conditions such as grid problems or internal failure it will display the information on its LCD and light up the red Fault LED 3 Shutdown mode During periods of little or no sunlight Protect PV automatically stops running In this mode Protect PV does not take any power from the grid The display and LED s on the front panel do not work FRONT PANEL Operating Protect PV is quite easy During normal operation Protect PV runs aut
13. ded by purchasing additional Extended Warranty Program which extends factory warranty by five 5 years from the date the original factory warranty is ending and guaranty repair and or replacement of defective parts Travelling time expenses and board and accommodation costs will be charged to the Purchaser The Extended Warranty must be purchased within the first 12 months of the inverter purchase The Extended Warranty Program does not cover failure due to commissioning or Start Up by non authorized personnel improper operation or use of the equipment lack of maintenance alterations to original design or a change in location or operating use Extended warranty doesn t cover wear and tear parts such as cooling fans The other terms of Extended Warranty Program are defined in the Terms of warranty section 1 OVERVIEW Protect PV 2000 amp 2800 DISPLAY INFORMATION SWITCH LCD DISPLAY SHOWING THE INVERTER STATUS T D GREEN NOR OPERATION LEB RED FAULT STATU PN 6 UTILITY AC VIS SOLAR PANEL RS232 COVER RS485 SLOT INPUT ILL d ik ot Ex E 10 2 FEATURES Very high conversion efficiency gt 96 MPPT Maximum Power Point Tracking Higher power capacity than similar products of the same size Embedded LCD display showing complete status information Natural convection cooling Quiet fan less design Stylish modern casing Compact small profile
14. e refer to this manual before contacting your local AEG PS dealer or representative To obtain the latest manual and product information please contact AEG PS All the information included in this manual will be fully known and understood Any mishandling and or misuse of the product contravening or ignoring the indications and specifications included in this manual could lead to the cancellation of the guarantee and more importantly to personal damage or personal accidents Both material and personal safety will prevail in all actions performed with the product Should there be any doubt regarding this please ask AEG PS Thank you for choosing our product Please keep this manual on hand for quick reference SAFETY INSTRUCTIONS RISK OF ELECTRIC SHOCK 1 Do not remove the casing Protect PV contains no user serviceable parts Refer servicing to qualified service personnel Both AC and DC voltage sources are terminated inside the PV Inverter Please disconnect these circuits before servicing 2 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 casing until at least 30 m
15. international standards will be issued upon request INCIDENT FORM In order to provide a better and faster client assistance service in the case of an incident please fill in the form on the service sheet and guarantee attached to this with the information requested This form will be filled in by a technician who is responsible for the installation of the solar plant and sent to the AEG PS for this to be registered to then deal with the incident As many copies as are necessary may be made of this form in order to inform on different incidents that may affect each individual inverter 31 OPERATING INSTRUCTIONS EN 07 12 V1 8000022287 AEG is a registered trademark used under license from AB Electrolux AEG Power Solutions GmbH Emil Siepmann Str 32 59581 Warstein Belecke Germany Tel 49 0 2902 763 520 290 Fax 49 0 2902 763 1201 www aegpowercontrol lers com www aegps com AEG POWER SOLUTIONS
16. inutes after dis connecting all power sources This unit is designed to feed power to the public power grid utility only Do not connect this unit to an AC source or generator Connec ting Protect PV to external devices could result in serious damage to your equipment Remove the unit carefully from its packaging and inspect for external damage If you find any imperfections please contact your local AEG PS dealer Hot surfaces Although designed to meet all safety requirements some parts and surfaces of Protect PV 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 Protect PV is operating LIMITED WARRANTY The limited warranty provided by AEG Power Solution AEG PS in this Statement of Warranty applies only to Equipment purchased for residential commercial or industrial use in the ordinary course of the business TERMS OF WARRANTY AEG PS warrants that it is sufficiently experienced properly qualified registered licensed equipped organized and financed to perform the Work in compliance with the terms of this Agreement AEG PS warrants that the Equipment shall be free from defects in de sign materials and workmanship for a period of sixty 60 months from the date of commissioning when AEG PS authorized service personnel performed the commissioning and start up of the Equipment but not longer than sixty six 66 mo
17. nths from the date of notification that the goods are ready for dispatch whichever occurs first In the event that the Equipment fails to meet the foregoing warranty AEG PS undertakes to repair and or replace any part found to be faulty due to errors in design or manufacture or to be made of faulty mate rials if trained amp authorized AEG PS personnel has conduct commissio ning and start up of the Equipment An AEG PS Commissioning and Start Up Service must be performed completed by AEG PS or by authorized service personnel If not the on site Warranty will be voided and replacement of defective parts only will be covered AEG PS shall have no liability and no obligation to repair the installed Equipment if non authorized personnel performed the start up and such start up caused the Equipment to be defective In addition the Warranty does not cover defects originating from the materials provided by the Purchaser a design imposed by the Purchaser incidents brought about by contingencies or acts of God or any other cause the vendor could not reasonably be expected to foresee or whose consequences it could not prevent repairs or replace ments imposed by normal wear and tear of the equipment damage or accidents brought about by the Purchaser s actions such as negligence connection error failure to follow instructions for maintenance abnor mal use due in particular to electrical or mechanical overload Any parts furnished under
18. omatically However to achieve maximum conversion efficiency of Protect PV please read the following information 1 Automatic ON OFF Protect PV starts up automatically when DC power from the PV panel is sufficient Once the PV Inverter starts it enters one of the following 3 states Standby The PV string can only provide just enough voltage to minimum requirements of the controller Waiting When the PV string DC voltage is greater than 100V Protect PV enters a waiting state and attempts to connect to the grid 19 Normal operation When PV string DC voltage is greater than 150V Protect PV operates in the normal state In this state it feeds power to the grid Protect PV automatically stops when the PV power is not enough Model XkW a Press the Function key repeatedly until Contrast shows in the display b Hold the Function key down for more than Waiting 2 seconds until display shows Set contrast and a bar graph on the right did 3 Checking XX c Press the Function key repeatedly until the display s contrast is acceptable d Release the key for more than 10 seconds Normal State the display will show Watt xxxx xW Watt xxxx xW Information during start up Feeding Accumulated Watt xxxx xW Turn on backlight 1 Voltage xxx xV 1 Frequency xx x 1 enerav Model xkW Model VXX XXXX Normal State AC Grid voltage
19. otect PV can accept a special card designed for the port only The RS485 card is used to work with Protect PV logger and in multiple monitoring applications AEG Power Solutions GmbH plan to release other communication cards in the near future For informa tion of card details please refer to the user manual of each individual card To get the latest information please contact with your local AEG PS dealer or visit our website 25 3 Firmware upgrade To keep the firmware up to date use the RS232 port and supplied program to upgrade firmware To do this please contact your local AEG PS service To prevent risk of damage it is recommended that only authorized personnel perform firmware upgrades 26 8 TROUBLE SHOOTING System Fault DISPLAY Isolation Fault In most situations the Protect PV inverter requires very little service However if Protect PV is not able to work perfectly please refer to the following instructions before calling your local AEG PS dealer Should any problems arise the red Fault LED on the front panel turns on and the LCD displays the relevant information Please refer to the following table for a list of potential problems and their solutions POSSIBLE ACTIONS 1 Check the impedance is between PV amp PV and the PV Inverter is earthed The impedance must be greater than 8M If the problem persists please call service Ground I Fault The ground current is too
20. rter s maximum DC current High voltages exist when the PV panel is exposed to the sun To reduce risk of electric shock avoid touching live components and treat connec tion terminals carefully CHECKING 1 When the PV panels are connected and their output voltage is greater than 100 VDC but the AC grid is not yet connected the message on the LCD display produce the following messages in order MODEL XkW gt Waiting gt No Utility The display repeats No Utility and the RED fault LED turns on 2 Close the AC breaker or fuse between PV Inverter and grid The normal operating sequence begins 3 Under normal operating conditions the LCD displays Watt xxxx xW That is the power fed to the grid The green LED turns lights up 4 This completes the check 17 4 SYSTEM DIAGRAM The typical connection diagram for the entire PV system is shown in the following figure Protect PV Connection PV panel systemi 1 PV Panel Provide DC power to Protect PV inverter 2 Protect PV PV Inverter Converts DC Direct Current power from PV panel s to AC Alternating Current power Because Protect PV is grid connected it controls the current amplitude according to the PV Panel power supply Protect PV always tries to convert the maximum power from your PV panel s 3 Connection system This interface between Utility and PV Inverter may consist of electrical breaker fuse and connecting terminals To
21. se level non condensing 7W lt 35 dBA non condensing 7W lt 35 dBA Comm Interface MECHANICAL W x D x H mm Weight kg Standard RS232 Optional RS485 and others 350 x 302 x 124 12 25 Standard RS232 Optional RS485 and others 350 x 302 x 139 12 5 Product specifications are subject to change without notice 29 TYPICAL EFFICIENCY CHARTS VS LOAD ueupiemqe essiuqo613 euoi u esie1 ueuuo ueuoneyyizedsjjepop pun e1e1561so puniBjny somulH Pac W Pac W 0 100 200 300 400 500 800 700 800 800 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2200 O 140 280 420 560 700 840 980 1120 1260 1400 1540 1680 1820 1960 21002240 2380 2520 2660 2800 3080 985395585538 8 u 100 200 300 400 500 Protect PV 2000 Protect PV 2800 30 10 REGULATION amp CERTIFICATES COMPLIANCE amp STANDARDS EMC DIN EN 50081 part 1 EMV interference emission EN 55014 EN 60555 part 2 EN 55011 group 1 class B DIN EN 50082 part 1 EMV interference immunity GRID INTERFACE DIN EN 61000 3 2 GRID MONITORING EN DIN VDE 0126 1999 04 VDE 0126 1 1 2006 02 LOW VOLTAGE REGULATION DIN EN 50178 4 98 VDE 0160 IEC62103 DIN EN 60146 Teil 1 1 3 94 VDE 0558 Teil 11 The certificates regarding compliance of the Protect PV 2000 and PV2800 inverter with VDE standards RD 1663 2000 EC markings or other
22. talled where the ambient tempera ture is between 0 40 C 12 MOUNTING PROTECT PV TO THE WALL 1 Select a wall or solid vertical surface that can support the PV Inverter 2 Protect PV requires adequate cooling space Allow at least 20cm space above and below the inverter 20 cm space 3 Using the mounting frame as a template drill 4 holes as illustrated in the following figures 4 Fix the mounting frame as the figure shows Do not drive in the poet screws flush to the wall Instead leave 2 to 4mm exposed 22 6 5 Hang the inverter on the mounting frame 6 Check the installation conditions a Do not install the PV Inverter on a slanted surface b Check the upper straps of PV Inverter and ensure it fits on to the bracket Insert safety lock screws to the bottom leg to secure the inverter 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 display can be easily viewed 13 Choose a strong mounting wall to prevent vibrations while Protect PV is operating 14 CONNECTING TO THE GRID AC UTILITY 1 Measure grid utility voltage and frequency It should be 230VAC or 220VAC 50 60Hz and single phase
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