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User Manual

SG40KTL

Grid-Connected

Inverter

Summary of Contents for SG40KTL

Page 1: ...1 User Manual SG40KTL PV Grid Connected Inverter...

Page 2: ...g the pictures markings and symbols used Any reproduction or disclosure even partially of the contents of this manual is strictly forbidden without prior written authorization of Sungrow The contents...

Page 3: ...d and from the PV input before touching any inner live parts Hot surface In order to reduce the risk of burns do not touch the hot surface when the device is running Look over the user manual before a...

Page 4: ...o Installation Site 21 5 3 Installing the Inverter 21 5 3 1 Installing on Concrete Wall 21 5 3 2 Installing on Metal Frame 22 6 Electrical Connection 24 6 1 Terminals Description 24 6 2 Connecting Inv...

Page 5: ...53 10 9 1 Time Setting 53 10 9 2 Energy Deviation Adjustment 53 10 9 3 Load Default 53 10 9 4 Firmware Version 54 10 10 Running Parameters Setting 54 10 10 1 Main Menu of Run param 54 10 10 2 Reactive...

Page 6: ...amiliar with safety requirements for electrical system Technical personnel mentioned above may perform the following work Install the inverter onto the wall Connect the inverter into the PV power syst...

Page 7: ...touched during inverter operation Maintenance and Service There is a risk of inverter damage or personnel injury due to incorrect service work Always keep in mind that the inverter is power supplied...

Page 8: ...wrist band when handling the boards Avoid unnecessary touch with the boards during replacement Others The selected country settings can be changed by qualified personnel only Unauthorized modificatio...

Page 9: ...and feeds it into the utility grid The intended usage of the inverter is illustrated in Fig 2 1 Inverter CANNOT be connected to the PV modules the positive or negative terminal of which needs to be gr...

Page 10: ...eration of the unit 2 2 Product Description 2 2 1 Product Appearance Fig 2 2 Product Components Description Image shown here is for reference only Actual product you receive may differ Item Name Descr...

Page 11: ...on is shown in Tab 2 2 2 Buttons Navigate in the LCD menu set values and so on Detailed function is shown in Tab 10 1 3 LCD screen LCD screen can display current state of inverter current running info...

Page 12: ...The inverter provides standard interface RS485 for communication Inverters are also provided running records display and parameters configuration via human computer interface LCD display panel We prov...

Page 13: ...r LCD display or remote dispatch Grid frequency too high when the Country selection is DE or IT Power Limit Setting User may allocate output power value of the inverter via LCD control panel or the re...

Page 14: ...2 Product Introduction User Manual 14 P Vmin 266V Pn Vgrid 277V Fig 2 6 Grid Under voltage Derating...

Page 15: ...the section on safety instruction Chapter 1 3 Store the inverter unit if not install immediately Section 4 4 4 Choose the best installation site Section 5 1 5 Moving the inverter to installation site...

Page 16: ...f there is something missing contact the unit dealer Do not dispose of the original packaging It will be the best choice to store the inverter by re using the original packaging Fig 4 1 Paper Packagin...

Page 17: ...y Contents Images shown here is for reference only Actual product you receive may differ Item Name Description A Inverter unit B Backplate It is used for mounting inverter onto the wall C Inverter cap...

Page 18: ...The unit must be stored in a clean and dry place to protect against dust and moisture The storage temperature should be always between 30 and 85 And the storage relative humidity can reach 100 The re...

Page 19: ...verter over a long period of time Install the unit where is accessible to install electrical connect or service Do not install the unit on the wall of flammable materials Do not install the inverter w...

Page 20: ...which will cause power reducing Shaded site of the building is preferred Take enough space for convection into consideration during installing multiple inverters It is suggested that position the mul...

Page 21: ...d onto the wall by means of backplate enclosed in the packaging If you don t use the supplied backplate you may drill holes refer to its dimension below Fig 5 1 Dimensions of Backplate unit mm There a...

Page 22: ...e inverter to the backplate fasten the inverter to the backplate with two M4 16 screws 5 3 2 Installing on Metal Frame Step 1 Remove backplate and fasteners from the packaging Step 2 Choose the best i...

Page 23: ...ap onto the inverter for better weatherproof function Step 7 Lift up the inverter above the backplate and then slide down to make sure that the recesses on the back of the inverter fit perfectly toget...

Page 24: ...ectrical terminals and cable openings of the inverter are located at the connection cabinet as Fig 6 1 Fig 6 1 Connection Cabinet Description Image shown here is for reference only Actual product you...

Page 25: ...Connection If several inverters are operated in parallel connection to grid different requirements should be obeyed Scenario 1 Several inverters are operated in parallel connection to the three phase...

Page 26: ...inverter rating Withstand ambient temperature Layout type inside wall underground free air etc UV resistance and so on Connecting Inverter to AC Grid Danger to human life due to high voltage existing...

Page 27: ...g to markings on the block Observe the AC terminal layout Device will not work normally if the phase cable is connected to the PE terminal Do not squeeze or press the cable insulation layer Improper c...

Page 28: ...se independent mode due to different orientation angle between the two PV inputs To make sure maximum DC power can be utilized PV strings connected to individual input area should have a homogenous st...

Page 29: ...ly Total DC Power Limit Open circuit Voltage Limit for Each Input Short circuit Current Limit for Total Input 40500W 1000V 80A You should also take the negative open circuit voltage temperature coeffi...

Page 30: ...the DC and AC cables to the inverter are not live before you start the electrical work Step 1 Strip off 7mm insulation layer from all DC cables Step 2 Assemble cable ends with crimp contacts by crimpi...

Page 31: ...am The connection of each four ports in one terminal is equipotential Step 9 Check the connection cable of PV string for the correct polarity and that the open circuit voltage does not exceed the inve...

Page 32: ...carrying exposed metal parts of the equipment and other enclosures in the PV power system should be grounded e g PV arrays frame and inverter enclosure Where there is only one inverter in the PV powe...

Page 33: ...SolarInfo Insight or to data logging device such as SolarInfo Logger RS485 is the standard communication choice for inverter The communication terminals RS485 are located at the bottom of the inverte...

Page 34: ...verter Communication Connection RS 485 A B bus or RJ 45 Terminating Resistor RS 485 A B bus RJ 45 Single one Only out Only out No For Multiple Inverters Where there is more than one inverter all inver...

Page 35: ...e position of the inverter refer to the prior section switch ON or OFF the terminating resistor Step 6 Tighten the tread lock sealing lock Block off the vacant terminals to protect the inverter s inte...

Page 36: ...inverter s internal from dust and moisture Step 7 According to the position of the inverter refer to the prior section switch ON or OFF the terminating resistor Step 8 If there is no other connection...

Page 37: ...ents precede the following procedures to start up the inverter for the first time Step 1 Close external AC circuit breaker Step 2 Rotate DC switch to ON position Suppose there are sufficient sunlight...

Page 38: ...f the Country selected does not have the Grid codes directives this configuration will not affect the following procedures However you may select the MV to enable disable the LVRT function regardless...

Page 39: ...above mentioned parameters are correct Confirm by Pressing ENTER Cancel by Pressing ESC and reset Step 12 Inverter will enter into startup process Observe status of LED indicators and the LCD main sc...

Page 40: ...Wait about ten minutes until the capacitors inside the inverter have discharged Step 4 Loose the six screws on the lower connection cabinet and then remove the lid Step 5 Measure AC voltage to ground...

Page 41: ...tate will be shown on the main screen Press to view multiple current fault information pages Fault Code Description Troubleshooting 002 The grid voltage exceeds inverter allowable upper limit 1 Check...

Page 42: ...moment for inverter recovery 3 If the fault occurs repeatedly contact Sungrow Service Dept 016 The AC output overloads 1 Wait a moment for inverter recovery 2 If the fault occurs repeatedly contact S...

Page 43: ...mode set on the display is not in accordance with the configuration in the connection cabinet 1 Disconnect the inverter 2 Re select PV configuration mode and re connect PV strings For more detailed in...

Page 44: ...ntact with SUNGROW 548 551 PVS X output current abnormal warning of PV1 X represents the alarm code corresponding DC1 X ones followed by 1 2 3 4 1 Check whether the PV array is shielded If the PV arra...

Page 45: ...the fans are dirty or out of work the inverter may not be well cooled down and its efficiency may accordingly decrease Therefore it is necessary to clean the dirty fans or replace the broken fans Disc...

Page 46: ...t ten minutes Step 4 Open the inverter as described in section 8 Disconnecting Dismantling and Disposing the Inverter Step 5 Observe the string fuse assignment and check the fuse conductivity using th...

Page 47: ...ave any problems in operating on the inverter please contact us Service hotline 86 551 65327817 Email service sungrow cn We need the following information to provide you the best assistance Type of th...

Page 48: ...or increase the set value Hereinafter it is referred to as Press Press more than two seconds Return to the previous menu or cancel the command Hereinafter it is referred to as Press ESC Press less th...

Page 49: ...LCD Display 49 10 2 Inverter Menu Structure Fig 10 1 Menu Tree English 10 3 Main Screen If the inverter succeeds in commissioning LCD display will enter into the main screen as shown in Fig 10 2 Fig 1...

Page 50: ...CD menu Start The inverter is initializing and synchronizing with the grid Upd fail IAP In Application Programming update fails Fault If a fault occurs the inverter will automatically stop operation t...

Page 51: ...ates the corresponding input is at work P W is inverter output active power S Va is inverter output apparent power Country is inverter selected country code Grid code is inverter selected grid code Va...

Page 52: ...10 7 Start and Stop Inverter Main Screen Press ENTER Menu Press 2 Start Stop Press ENTER Press to choose Start Stop and press ENTER to confirm the choice Press ENTER to confirm 10 8 Input Parameter S...

Page 53: ...n Press to move the cursor right and Press to set the correct date and time Confirm settings by pressing ENTER 10 9 2 Energy Deviation Adjustment If the accumulative value of E total in the inverter i...

Page 54: ...ess to move arrow to one item and Press ENTER to start this item setting For each item setting Press to move cursor right and Press to set the appropriate value Confirm by Pressing ENTER Tab 10 4 Spec...

Page 55: ...er PF on the Run param screen Qt Mode The reactive power can be regulated by the parameter Q Var limits in on the Run param screen Off Mode The PF is limited to 1 000 and the Q Var limit is limited to...

Page 56: ...ue Press to decrease one step value Press ENTER to confirm the setting and exit from the editing mode Tab 10 5 Italy Q P Mode Parameters Explanation Parameter Explanation Default Range Step PA Active...

Page 57: ...Hysteresis In the Q U mode the Sn value is 1 118 times of Pn value If you need set the Qmax that is equal to x Sn you can set Qmax to be 1 118 x Pn That means to set Lower Q Pn Ind to be 1 118 x and s...

Page 58: ...values set when power down Select N to restore default values when power down 10 11 Protective Parameters Setting 10 11 1 Country Setting Protective parameters are designed for the limit value that ca...

Page 59: ...ish RO Romania English TH Thailand English TK Turkey English Other Country not included above English If the country code set as TH a Grid codes page as shown in the right will appear Press to select...

Page 60: ...Press to select parameter Press to move cursor right and Press to set the appropriate value Confirm settings by Pressing ENTER Tab 10 8 Multi stage Protective Parameter Explanation Parameter Explanati...

Page 61: ...age Grid under voltage U tripping time Min V red Stage Grid under voltage U Min V tempo Stage Grid under voltage U tripping time Max F prot Over frequency protection Max F red Stage Grid over frequenc...

Page 62: ...s Press ENTER Under one of the following three conditions you can select Advanced settings The country code is set as RO Other CHN AT TK The inverter has a PV strings current detection function The su...

Page 63: ...s to select Confirm the selection by Pressing ENTER If the country code set as RO a Derating page as shown below will appear Press to select Confirm the selection by Pressing ENTER The following graph...

Page 64: ...Other a Grid pro page as shown in the right will appear Press to select Confirm the selection by Pressing ENTER 10 13 5 Island Main Screen Press ENTER Menu screen Press 4 Advanced settings Press ENTE...

Page 65: ...equency range 45 55Hz 55 65Hz THD 3 at nominal power DC current injection 0 5 In Power factor 0 99 default value at nominal power adj 0 8 overexcited 0 8 underexcited Protection Anti islanding protect...

Page 66: ...ompany or distributors to get the latest version Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the followings Inappropriate use or install of...

Page 67: ...ected and stand alone applications The power rating of Sungrow products covers from hundred watt to mega watt systems The vision of Sungrow is to help our customers acquire stable and clean power with...

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