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SG2K5TL/SG3KTL/SG4KTL-31

User Manual

Data storage and display

Inverter stores essential data including running information and fault records, and
displays them on integrated LCD display.

Parameters configuration

Inverter provides various parameters configuration for optimal operation.

Communication interface

Standard RS485 interface for connecting other monitoring devices into the PV
system is included.

Protection functions include

−

reverse polarity protection

−

short circuit protection

−

insulation resistance to ground surveillance

−

inverter output voltage surveillance

−

inverter output frequency surveillance

−

residual current protection

−

DC component of AC output current surveillance

−

anti-islanding phenomena protection

−

ambient temperature surveillance

Summary of Contents for SG2K5TL

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

Page 2: ......

Page 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...

Page 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...

Page 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...

Page 6: ......

Page 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...

Page 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...

Page 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...

Page 10: ...IV...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 79: ......

Page 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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