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Grid-connected Inverter

STS 7~11KTL

User Manual

EN

Содержание STS 7-11KTL

Страница 1: ...S U N W A Y S T E C H N O L O G I E S C O LT D Grid connected Inverter STS 7 11KTL User Manual EN ...

Страница 2: ...unting standard bracket 20 4 3 Mounting Including L shaped plate 22 4 4 External ground connection 25 4 5 Electrical Connection 26 4 6 Monitoring Device Installation 33 4 7 CT RS485 DRED Connection 34 5 Start and Stop 38 5 1 Start the Inverter 38 5 2 Stop the Inverter 38 6 General Operation 39 6 1 Display Operation 39 6 2 Country Code Safety Code Setting 40 6 3 Auto Test 41 6 4 Power Quality Respo...

Страница 3: ...this document do not constitute any express or implied guarantee 1 Preface 1 1 Overview This manual is an integral part of Sunways STS 7 11kW series single phase inverters hereinafter referred to as the inverter It mainly introduces the assembly installation electrical connection maintenance and troubleshooting of the products Before installing and using the inverter please read this manual carefu...

Страница 4: ...t in danger to life 2 2 Statement Sunways Technologies Co Ltd has the right not to undertake quality assurance in any of the following circumstances Damages caused by improper transportation Damages caused by incorrect storage installation or use Damages caused by installation and use of equipment by non professionals or un trained personnel Damages caused by failure to comply with the instruction...

Страница 5: ...e Inverter 2 4 2 Symbol on the Inverter nameplate Inverter status indicator Inverter running indicator Grounding symbol the inverter casing needs to be properly grounded The inverter cannot be disposed of with household waste Please read the instructions carefully before installation Do not touch any internal parts of the inverter until 5 min after being disconnected from the mains and PV input CE...

Страница 6: ...rter which used to efficiently convert the DC power generated by the PV string Into AC power and feed it into the grid 3 1 2 Models The STS 7 11kW series inverter includes 6 models which are listed below STS 7KTL STS 8KTL STS 9KTL STS 10KTL STS 11KTL 3 1 3 Applicable grid type The applicable grid types for the Sunways STS 7 11kW series are TN S TN C TN C S and TT When applied to the TT grid the vo...

Страница 7: ...Inverter Bottom View Figure 3 5 Inverter back view Back Rail Vent Valve 3 2 4 Inverter back view Figure 3 3 Side view 3 Product Description 3 Product Description Wiring terminals are at the bottom of the inverter as shown in the table below Item Terminal Note 1 DC Input terminal PV connector 2 COM 1 Port WiFi LAN GPRS 4G device connector 3 COM 2 Port CT RS485 DRED connector 4 AC Output Terminal Us...

Страница 8: ...or faults detected specific fault information can be viewed from the display Off The inverter is running normally Slow flashing The monitoring device is not connected to the router or is not connected to internet Quick flashing The monitoring device is connected to the router or connected to internet but not connected to the server sunways Item Indicator Status Description 3 OLED Display On Displa...

Страница 9: ...onal Note Export limitation control version 2pcs RS485 and DRED version 1 pcs This connector already pre installed inside the inverter DRED version only This connector already pre installed inside the inverter The AC terminals of STS 3 6KTL and STS 7 11KTL are similar but not exactly same do not mix them Sunways has the right to refuse all damages caused by the mixed use of terminals L shaped plat...

Страница 10: ... inverter at eye level for easy inspection of screen data and further mainte nance The ambient temperature of the inverter installation location should be between 30 and 60 The surface temperature of the inverter may reach up to 75 To avoid risk of burns do not touch the inverter while it s operating and inverter must be installed out of reach ing of children 4 1 1 Installation location Recommende...

Страница 11: ...the wall bracket Use an electrical driller with 10mm diameter bit to drill 5 holes in the wall with 80mm depth Insert the expansion tubes into the holes and tighten them then fix the bracket onto the wall with expansion screws by using a cross screwdriver as shown in Figure 4 6 Lift the inverter hang the back rail on the fixed wall bracket carefully See Figure 4 7 for details Figure 4 7 Mounting t...

Страница 12: ... Prepare the two M5 screws and L shaped plate in the accessory bag then fix the L shaped plate to the mounting bracket Figure 4 10 Bracket assembly Use an electrical driller with 10mm diameter bit to drill 5 holes in the wall with 80mm depth Warning Before drilling make sure to avoid any buried water tube and electric wires in the wall Insert the expansion tubes into the holes and tighten them the...

Страница 13: ...hock Attention Good grounding is good for resisting surge voltage shock and improving EMI perfor mance Inverters must be well grounded For a system with only one inverter the PE cable needs to be grounded For a multi inverter system all inverters PE wires need to be connected to the same grounding copper bar to ensure equipotential bonding Figure 4 13 Grounding terminal connection 4 Installation 4...

Страница 14: ... poorly connected cable connector 1 The following must be considered when making electrical connections to the inverter Disconnect the AC breaker switch on the grid side The DC switch of the inverter must be turned to the OFF position For best practice ensure PV modules of the same model and specifications are con nected in each string Make sure the maximum output voltage of each PV string does no...

Страница 15: ...at the cable polarity is correct Use a multimeter to measure the voltage of the DC input string verify the polarity of the DC input cable and ensure that each string voltage is within 600V 4 Installation Figure 4 18 DC Switch Inverter PE PE L N To grounding electrode Grid AC Breaker DC INPUT AC OUTPUT Figure 4 19 4 Seal the unused PV terminals with the terminal caps 5 System Layout of Units withou...

Страница 16: ...ning An AC breaker must be connected on the AC side of the inverter Any loads cannot be connected to the inverter without the AC breaker 1 AC connector connection steps Take the AC connector out of the accessory bag and disassemble it as shown in Figure 4 20 Cable Gland Threaded Sleeve AC Terminal Head 4 Installation Figure 4 21 Wire Diameter 13 18mm 50mm Strip Length 8mm Figure 4 22 Insert the st...

Страница 17: ...e assembly is in place Figure 4 25 Monitoring device installation Note 1 The 4G and GPRS version module does not need to be configured 2 The WiFi version module needs to be configured to the router for the first installation If the router name or password are changed the WiFi dongle will need to be reconfig ured For details please refer to the QUICK INSTALLATION GUIDE which is attached to the acce...

Страница 18: ... Sunways STS series inverter The color of CT is only identified by Sunways 1 Connect S1 cable Black CT or white black cable Blue CT 2 Connect S2 cable Black CT or black cable Blue CT 3 NULL Port 2 Export limitation control RS485 DRED version with this port ln case of multiple inverters all the inverters can be daisy chained via RS485 cables 1 RS485 A 2 RS485 B 3 PE NULL Port 3 Only DRED version wi...

Страница 19: ...rter Data logger Sunways server Internet Internet LAN WiFi GPRS RS485 RS485 RS485 Router Attention It is recommended to use the RS485 communication cable with a cross sectional area of 0 75 1 5mm and an outer diameter of 5mm 10mm RS485 cable requirements Shielded twisted pair cable or shielded twisted Ethernet ca ble 4 7 3 Export limitation control or power limit solution 4 7 4 Wiring Steps 4 Inst...

Страница 20: ...ration 6 1 Display Operation When the inverter is turned on the following interfaces will be displayed on the OLED dis play and the OLED display allows the user to check various operation information and to modify the settings of the inverter Please refer to the following display operation flow for details 6 General Operation Main Window PV Voltage PV Current Grid Voltage Grid Current Grid Freq E ...

Страница 21: ...te Auto Test After the auto test finished short press the button several times until the screen displays Auto Test Record and hold the button 3 seconds to check the test result Connect the AC cable auto test will start after the inverter connected to the grid see the operation steps below Main Window General Settings Remoted Cmd 1 Local Cmd 1 Password 1111 Setting OK Auto Test CEI 0 21 Test Record...

Страница 22: ...fault messages and their Error Message Description Troubleshooting No Display No Display Check whether cables are all firmly connected and DC switch is on Check whether the input voltage meets the working voltage Mains Lost Grid power outage AC switch or circuit is disconnected Check whether the mains supply is lost Check whether the AC breaker and terminals are well connected Grid Voltage Fault G...

Страница 23: ...tion fails Caused by a strong external magnetic field etc Restart the inverter wait a moment for invert er recovery If the fault occurs repeatedly please contact Sunways 7 Troubleshooting Error Message Description Troubleshooting E2 Fault Internal storage anomaly Caused by a strong external magnetic field etc Restart the inverter wait a moment for invert er recovery If the fault occurs repeatedly ...

Страница 24: ... outlet are normal Clean the air inlet and outlet if necessary Six months to a year it de pends on the dust contents in air 7 Troubleshooting Model STS 7KTL STS 8KTL STS 9KTL STS 10KTL STS 11KTL Input Start up Voltage V 80 80 80 80 80 Max DC Input Voltage V 600 600 600 600 600 Rated DC Input Voltage V 360 360 360 360 360 MPPT Voltage Range V 80 550 80 550 80 550 80 550 80 550 No of MPP Trackers 2 ...

Страница 25: ...rated AC Over voltage Protection Integrated General Data Dimensions mm 550W 410H 175D Weight KG 24 26 Protection Degree IP65 Self consumption at Night W 1 Topology Transformer less Operating Temperature Range C 30 60 Relative Humidity 0 100 Operating Altitude m 3000 Cooling Natural Convection Fan Cooling Noise Level dB 25 40 Display OLED LED Communication RS485 WiFi GPRS LAN Optional Compliance NB...

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Страница 27: ...S11 00036 00 No 1 Second Road Green Industrial Zone Chongshou Town Cixi City ZheJiang Province PRC www sunways tech com service sunways tech com ...

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