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SG2K5TL/SG3KTL/SG4KTL-31

User Manual

6.2

Simplified Electrical Connection Diagram

Connecting inverter to the existing PV system includes inverter connection to local
grid and inverter connection to PV arrays. There may be communication connection to
be established for monitoring inverter operation if necessary.

Fig 6-2 Electrical Connection Diagram

Item Description

Remark

AC circuit breaker

Used as a protective device during electrical connection. User
equips this device according to maximum output voltage and
current.

Utility grid

Rated grid voltage is 230V.

SolarInfo

logger or

converter device

User may order it from Sungrow.

User equips this device to monitor inverter.

E PV

arrays

There are three pairs of input terminals for inverter. The allowable
maximum open-circuit voltage for each PV string is 500V.

Содержание SG2K5TL

Страница 1: ...SG2K5_3K_4KTL V31 UEN Ver12 201206 Version 1 2 SG2K5TL SG3KTL SG4KTL 31 PV Grid Connected Inverter User Manual...

Страница 2: ......

Страница 3: ...mation about other devices at www sungrowpower com download or via webpage of device manufacturer Target Group The manual is targeted to technical personnel who is responsible for inverter installatio...

Страница 4: ...will result in death or serious injury WARNING indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury CAUTION indicates a hazard with a low level...

Страница 5: ...input before touching any inner live parts Hot surface In order to reduce the risk of burns do not touch device hot surface when the device is running Look over the user manual before any operation on...

Страница 6: ......

Страница 7: ...ption 11 3 Workflow about Inverter 13 4 Unpacking and Storage 15 4 1 Unpacking and Inspection 15 4 2 Identifying Inverter 16 4 3 Delivery Contents 17 4 4 Storage of Inverter 18 5 Installing Inverter o...

Страница 8: ...Maintenance 46 9 2 1 Cleaning the Cabinet 46 9 2 2 Cleaning the Heat Sink 46 9 2 3 Battery Maintenance 46 10 Operation of LCD Menu 48 10 1 Description of Button Function 48 10 2 Operation Mode of Inve...

Страница 9: ...ddress Settings 62 10 16 2 Protocol Settings 62 10 17 Inverter Start and Stop 63 APPENDIX 64 Electrical Specifications 64 Temperature Derating Curve 66 Exclusion of Liability 67 About Us 68 Contact In...

Страница 10: ...IV...

Страница 11: ...erter and other properties that belong to the operator or a third party Therefore in order to reduce the risk of personal injury inverter damage or other properties damage the following general safety...

Страница 12: ...orrectly During Installation Prior to installing the inverter onto the wall it is crucial to make certain that the inverter is not electrically connected System performance loss due to bad ventilation...

Страница 13: ...hot parts such as heat sink during operation Only LCD display panel and DC switch can be touched during inverter operation Maintenance and Service z Any malfunction that may impair inverter safety fu...

Страница 14: ...eriod while performing electrical connection and service work Do not open the enclosure when the inverter is under voltage There is a highly unlikely risk of explosion in very specific cases of malfun...

Страница 15: ...certificate marking All safety instructions warning labels and nameplate on the inverter body z Must be clearly visible z Must not be removed covered and pasted These regulations should also be follo...

Страница 16: ...SG2K5TL SG3KTL SG4KTL 31 User Manual 6...

Страница 17: ...d PV power system Inverter is dedicated to converting direct current power generated by the PV modules into alternating current which conforms to parameters of local utility grid and feeds the alterna...

Страница 18: ...odules of Protection Class II as its input Inverter may only be connected to utility grid via distribution board Local loads home appliance lights motor loads etc can not connected between inverter an...

Страница 19: ...used for cooling down the unit temperature during operation 8 Fan Only SG4KTL 31 is equipped with fan to help air ventilation 2 2 2 Dimensions and Weight of Inverter Fig 2 3 Dimensions of Inverter Tab...

Страница 20: ...the LCD menu select values and so on Detailed functions are shown in Table 10 1 Table 2 2 Description of LED Indicator LED State Description RUN on Inverter is feeding AC power to the utility grid FA...

Страница 21: ...tring can be utilized Inside the inverter protective circuit to can trigger AC relay if required for guaranteeing inverter safely operation and person Standard interface RS485 are provided for communi...

Страница 22: ...operation z Communication interface Standard RS485 interface for connecting other monitoring devices into the PV system is included z Protection functions include reverse polarity protection short cir...

Страница 23: ...these procedures Unpacking and Inspection Read User Manual Mounting the Inverter Electrical Connection Check before Commissioning Commissioning Start Success End Troubleshooting Yes No 1 Install Imme...

Страница 24: ...if not installed immediately Section 4 4 4 Choose the best installation site Section 5 1 5 Moving the inverter to installation site Section 5 2 6 Install the inverter against the chosen wall Section 5...

Страница 25: ...ng z Check the inner contents for damage after unpacking z Check the completeness of delivery contents according to the supplied packing list If there is visible damage to the packaging or the inner c...

Страница 26: ...here is indicative only Actual product you receive may differ Item Description 1 SUNGROW logo and product type 2 Technical data of inverter 3 Marks of certification institutions of inverter 4 Company...

Страница 27: ...ll C Expansion bolts for fastening backplate onto concrete wall D Fastener set for installing inverter onto metal frame E PV input connectors including positive and negative connectors F AC output con...

Страница 28: ...clean and dry place to protect against dust and moisture z The storage temperature should be always between 25 60 And the storage relative humidity should be always between 0 and 95 z It is very impo...

Страница 29: ...safety as well as it expected efficiency and service life 1 Take the load capacity of the wall into account The wall such as concrete wall and metal structure should be strong enough to hold the weig...

Страница 30: ...ion and display read 6 It is suggested that the inverter be installed vertically with upside up for good heat dissipation 7 Never install the inverter horizontally or with a forward tilt or with a bac...

Страница 31: ...amage to the inner electronic components Max ambient temperature 60 C Min ambient temperature 25 C Max relative humidity 95 No condensing 11 Do not expose the inverter to the direct sunlight Otherwise...

Страница 32: ...e produced during running of inverter which may affect your daily life 5 2 Moving Inverter to Installation Site If the inverter is to be installed remove the unit from the packaging and move it to the...

Страница 33: ...ns of Backplate and Fastener unit mm In the following pages we will introduce how to install the inverter onto the wall using the provided backplate Concrete Wall 1 Remove backplate and expansion bolt...

Страница 34: ...tions before drilling holes 5 Attach the backplate to the wall with the supplied expansion bolt set The torque for fastening the nut should be at least 35 Nm 6 Lift up the inverter above the backplate...

Страница 35: ...Prior to any electrical connection keep in mind that inverter has dual power supplies It is mandatory for technical personnel to wear personal protective equipments helmet footwear and gloves during t...

Страница 36: ...ry Fig 6 2 Electrical Connection Diagram Item Description Remark A AC circuit breaker Used as a protective device during electrical connection User equips this device according to maximum output volta...

Страница 37: ...A SG3KTL 31 25A SG4KTL 31 32A There are some points that are not allowed for the inverter z It is not allowed for several inverters to use the same circuit breaker z It is not allowed to connect loads...

Страница 38: ...in parallel connection to the three phase Low Voltage grid Requirements z The sum of all inverters in parallel connection is limited to thirty n L1 n L2 n L3 30 z Inverters should be distributed as e...

Страница 39: ...s may not operate normally 6 3 2 Assembling AC Connector with Cables The grid connection of inverter is made via 3 wires L N and PE And feeding power is always single phase via AC terminal at the bott...

Страница 40: ...e torque of 1Nm according to markings on the connector especially PE cable Observe the pin assignment of AC connector If a phase wire is connected to the PE terminal it may permanently destroy the inv...

Страница 41: ...system connect PE cables of all inverters and mounting frame of PV arrays to the same copper bus bar which may establish equipotential connection 4 Connect phase cable and N cable to the AC circuit br...

Страница 42: ...connected to inverter should also meet the following requirements z The same number of PV modules in each PV string z The same type of PV modules z The identical inclination angle of all PV modules z...

Страница 43: ...nding circular contacts with crimping pliers Positive Circular Contact Negative Circular Contact 3 Lead cable through cable gland 4 Insert the crimped on circular contact into insulator until it snaps...

Страница 44: ...mit 500V even under the lowest operating temperature Refer to module specification supplied by module manufacturer 3 Measure the DC voltage between the positive terminal of the PV string and Earth and...

Страница 45: ...pment 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 power system connect PE cable to the installa...

Страница 46: ...85 232 converter or SolarInfo Logger which converts 485 to 232 signal is needed between inverter and PC 6 6 2 RS485 Communication Connection RS485 is the standard communication choice for inverter The...

Страница 47: ...Cable gland Front connector 6 Now perform RS485 communication connection as the diagram shown below Connect connector of one cable end to RS485 terminal on the bottom of the inverter Make connector an...

Страница 48: ...nnection and configure communication parameters If there is more than one inverter to communicate with a PC or a data logger it is crucial to configure communication parameters of each inverter See 10...

Страница 49: ...ing left on top of the inverter heat sinker 5 Inverter and accessories are correctly connected 6 Cables are routed in safe place or protected against mechanical damage 7 Specification of AC circuit br...

Страница 50: ...nters into the running state 4 Observe state of LED indicators and LCD screen If inverter s commissioning fails FAULT indicator will be lit And State on the LCD screen will display type of malfunction...

Страница 51: ...the external AC circuit breaker and prevent it from connecting again 2 Rotate the DC switch to the OFF position Please strictly follow the sequence of the above procedures Otherwise it will lead to u...

Страница 52: ...SG2K5TL SG3KTL SG4KTL 31 User Manual 42 Press the ribbing Pull outwards Disconnect DC connectors...

Страница 53: ...4 If the phenomenon still exists contact Sungrow service dept RUN indicator and LCD turn on and turn off after a while irregularly DC voltage supplied is not stable 1 Wait for DC voltage to return to...

Страница 54: ...owable minimum grid voltage threshold of the installation country 1 Check the voltage of the grid 2 If the grid voltage exceeds the permissible range of inverter protective parameters ask utility grid...

Страница 55: ...Sungrow service dept for solution Samp ft There may be malfunction of sample circuit Contact Sungrow service dept for solution Bus high The Bus voltage exceeds limit 1 Restart the inverter through LCD...

Страница 56: ...ng the Cabinet Clean inverter by means of pressurized air or a soft cloth or a brush Do not use a water hose aggressive chemicals cleaning solvents or strong detergents to clean inverter 9 2 2 Cleanin...

Страница 57: ...yes It may be toxic z A battery can present a risk of electrical shock and high short circuit current The following precautions should be observed when working on batteries Remove watches rings or oth...

Страница 58: ...and downwards in the screen or increase and decrease the setting value It is referred to as press ESC hereinafter Press more than two seconds Return to parent screen or cancel the command It is referr...

Страница 59: ...acks the PV arrays maximum power point and converts DC power to AC power This mode is the normal operation mode z Fault If a fault occurs during operation the inverter will automatically stop operatio...

Страница 60: ...SG2K5TL SG3KTL SG4KTL 31 User Manual 50 10 3 Overview of Complete LCD Menu Fig 10 1 Menu Tree...

Страница 61: ...of inverter E day generated energy in the current day E tot the overall accumulative generated energy State the inverter s operation mode If there is no button operation in two minutes it will go back...

Страница 62: ...ime T day Running time in current day 10 7 Historical Information 10 7 1 Running Record Inverter stores the running information every fifteen minutes during running User can look up the historical run...

Страница 63: ...one page in total and here is the first page T 2 The total number of fault records is two Table 10 2 The Explanation of Faults Fault type Explanation Vdc high DC voltage is too high Vac high Grid vol...

Страница 64: ...press ENTER 7 Press to navigate cursor to select the number that represents language And press ENTER to confirm the selection 10 9 Time Settings If there is deviation between the time in the default...

Страница 65: ...rrow pointer to Set param and then press ENTER 3 Press to move cursor to the right and press button to set password 1111 4 Press ENTER to confirm command 5 Press to navigate arrow pointer to Sys param...

Страница 66: ...s 4 Press to navigate arrow pointer to Sys param and then press ENTER 5 Press to navigate arrow pointer to Load default and then press ENTER 6 Press to move right and press to input the password 1111...

Страница 67: ...nd press button to set password 1111 4 Press ENTER to confirm command 5 Press to navigate arrow pointer to Sys param and then press ENTER 6 Press to navigate arrow pointer to Auto test Italy and then...

Страница 68: ...move right and press to configure running parameters Standby time is the time from inverter starting to initialize to inverter feeding power to grid This parameter ranges from 10s to 255s And the def...

Страница 69: ...te arrow pointer to Set param and then press ENTER 3 Press to move cursor to the right and press button to set password 1111 4 Press ENTER to confirm command 5 Press to navigate arrow pointer to Pro p...

Страница 70: ...d max Grid over frequency value Fgrid min Grid under frequency value Multi stage Protective Parameter If the selected protective parameter type is Multi stage the sub menu will come up Press to move c...

Страница 71: ...ection frequency Min F grid Stage Grid under frequency Min F time Stage Grid under frequency tripping time Min F grid Stage Grid under frequency Min F time Stage Grid under frequency tripping time If...

Страница 72: ...Press ENTER to enter into parameters settings 4 Press to navigate arrow pointer to Com param and then press ENTER 5 Press to navigate arrow pointer to Address and press ENTER 6 Press to move right and...

Страница 73: ...ter 1 Press ENTER to enter general control screen 2 Press to navigate arrow pointer to Start Stop and then press ENTER 3 Press to navigate arrow pointer to Start and then press ENTER to start inverter...

Страница 74: ...put Voltage 150V Start Voltage 170V Number of MPP Trackers Strings Per MPP Tracker 1 3 AC SIDE DATA Nominal AC Power 2500W 3000W 4000W Max AC Power 2630W 3150W 4200W Max Output Current 12A 14A 19A Rat...

Страница 75: ...tegory II AC Side Overvoltage Category III Wet Location Yes Pollution Degree 3 Cooling Method natural cooling controlled forced air cooling Relative Humidity 0 95 non condensing Max Working Altitude 2...

Страница 76: ...66 Temperature Derating Curve 1 0 2 45 60 Pnom P U Ambient temperature C...

Страница 77: ...ion z Ignoring safety warnings and instructions contained in all documents relevant to the product z Installing or operating the product under incorrect safety or protection conditions z Altering the...

Страница 78: ...The pursuit of Sungrow is to help our customers acquire stable and clean power with minimum cost maximum reliability and enhanced safety Contact Information If you have any questions about this produc...

Страница 79: ......

Страница 80: ...e without notice Add No 2 Tianhu Rd New High Technology Industrial Development Zone Hefei P R China 230088 Web www sungrowpower com E mail info sungrow cn Tel 86 551 532 7834 532 7845 Fax 86 551 532 7...

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