Related Manuals for Sunways STH-3K Series
Summary of Contents for Sunways STH-3K Series
- Page 1 User Manual H y b r i d I n v e r t e r STH-3K~8KTL S U N W A Y S T E C H N O L O G I E S C O . , L T D .
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Page 2: Table Of Contents
1 Preface ……………………………………………………… 5 1.1 Overview ………………………………………………………………………… 5 1.2 Target Groups …………………………………………………………………… 5 2 Safety Instructions ……………………………………… 6 2.1 Safety Notes ……………………………………………………………………… 6 2.2 Statement ………………………………………………………………………… 6 2.3 Important Safety Matters ……………………………………………………… 7 2.4 Symbols Explanation …………………………………………………………… 8 3 Product Introduction …………………………………… 11 3.1 Basic Features …………………………………………………………………... -
Page 3: Preface
The products, services or features you purchase are subject to the commercial contracts and terms of Ningbo Sunways technologies Co., Ltd. All or part of the products, services or features described in this document may not be within your purchasing or using ※... -
Page 4: Safety Instructions
※ 2.2 Statement Used to warn of potentially dangerous situations, if not avoided, it may result in death or serious personal injury. Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of the Warning following circumstances: ①... -
Page 5: Symbols Explanation
Used to transmit the safety warning information about equipment or environment, if not avoided, it may cause equipment damage, data loss, equipment performance degrada- Grounding symbol, the inverter casing needs to be properly grounded. tion or other unpredictable results. "Attention" does not involve personal injury. Attention 2.4.2 Symbol on the Inverter nameplate Used to highlight important information, best practices and tips, etc. -
Page 6: Product Introduction
3.1.1 Function Electric shock hazard, it is strictly forbidden to use the person to Sunways STH series is also known as hybrid inverter or storage inverter, which is mainly used to combine the disassemble the inverter casing. PV array, lithium battery, loads and power grid to realize intelligent power management and dispatching . - Page 7 Battery Grid Sunways STH Hybrid inverter has the following basic operation modes and you can config- ure the operation mode as per your preference in the App. In this working mode, set the Pmax from grid in the App can realize the “Peakload Shifting”.
- Page 8 * To realize the “Peakload Shifting” function, the load power that exceeded Pmax has to be within the Mode 5 inverter max output power, otherwise, the inverter will only output the max power which allowed. In the purely off-grid mode, power from PV Loads will supply the back-up loads first and then Mode 3...
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Page 9: Appearance Introduction
※ 3.2 Appearance Introduction the object gently and stably by the force of the legs instead of your back. Do not lift it suddenly or turn your body around. 3.2.1 Inverter front view Transportation 550mm · Choose sea, roads, air and railway in good conditions for transportation. Avoid tilt or jolt during transportation. -
Page 10: Display Interface
※ 3.3 Display Interface 3.2.3 Inverter bottom view Battery Input Terminal Com2 Port Definition Battery Level Indicator Power Indicator Grid Indicator Alarm Indicator Display Button DC Switch Back Rail Figure 3-7 Display interface Com1 Port DC Input Terminal Item Indicator Status Description Figure 3-5 Bottom view... -
Page 11: Packing List
Button Physical button press or long press. ※ 3.4 Packing List Sunways Meter with 1 CT×1 The package of the inverter includes the following accessories. Please check whether the Cord End Terminal × 4 AC Cover× 1 , Screw× 6 accessories in the packing box are complete at the first time when receiving the goods. -
Page 12: Product Installation
Back-Up Terminal On-Grid Terminal ※ 4.1 Selection of Installation Location The Sunways STH-3K~8KTL series is designed with IP65 protection for indoor and outdoor installations. When selecting an inverter installation location, the following factors should be considered: ① The wall on which the inverter is mounted must be strong and can withstand the weight Back Up AC Terminal×1... -
Page 13: Mounting The Inverter (Standard Bracket)
※ 4.2 Mounting the Inverter (Standard bracket) 4.2.1 Wall bracket installation Do not put flammable and explosive articles around the inverter. Dimensions of wall bracket, see Figure 4-4: Warning 300mm 4.1.2 The requirements for inverter installation spacing are shown in Figure 4-2: 150mm 150mm 150mm... -
Page 14: Mounting The Inverter （Including L-Shaped Plate
※ 4.3 Mounting the Inverter （Including L-shaped plate） 4.3.1 Wall bracket installation Before drilling, make sure to avoid the buried water tube and electric wires in the wall to avoid danger. Dimensions of wall bracket, see Figure 4-8: Warning ③ Insert the expansion tubes into the holes and tighten them, then fix the bracket onto the 300mm wall with expansion screws by using a cross screwdriver, as shown in Figure 4-6: 150mm... - Page 15 ② Bracket assembly 4.3.2 Mounting the inverter Prepare the two M5 screws and L-shaped plate in the accessory bag, then fix the L-shaped Lift the inverter, hang the back rail on the fixed wall bracket carefully. Screws the inverter to plate to the mounting bracket.
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Page 16: Electrical Connection
Warning AC Breaker Do not use other brands or other types of PV terminals other than the PV terminal in the accessory package. Sunways has the right to refuse all damages caused by the mixed- use of terminals. Attention AC Breaker... - Page 17 Single inverter wiring diagram This diagram is an example for Australia and New Zealand. N and PE cables are connected This diagram is an example without special requirement on electrical wiring connection. together in the Main Panel for wiring. Neutral line of AC supply can be isolated or switched. 1(L) 1(L) 4(N)
- Page 18 4.4.2 External ground connection 4.4.3 Inverter PV string connection Connect the inverter and ground bar through PE wire to achieve the purpose of grounding 1. The following principles must be considered when making electrical connections to the invert- protection. Please always remember wiring the PE wire before wiring other wires. ①...
- Page 19 ③ Disassemble the connector in the accessory bag, as shown in Figure 4-18: O pe n -en d Wre n ch Figure 4-20 Figure 4-18 ① Before assembling the DC connector, make sure that the cable polarity is correct. ④ Insert the DC cable through the DC connector nut into the metal terminal and press the ②...
- Page 20 4.4.4 Inverter battery connection 1. The following principles must be considered when making battery connection: ① Disconnect the AC breaker on the grid side. ② Disconnect the breaker on the battery side. ③ Turn the inverter DC switch to the “OFF” position. ④...
- Page 21 PV array, cables or inverter (DC). The RCD in the Sunways inverter can detect leakage on the DC side. An external RCD ① Before making the battery connector, please make sure the polarity of the cable is correct.
- Page 22 ② Insert the stripped AC cables through the AC connector cover in the sequence as shown in ④ Lock the well-pressed cord end terminals into the AC connector in the accessory bag and Figure 4-28: make sure the cables sequence is in line with the mark on the connector, as shown in Figure 4-30: ON-GRID BACK-UP...
- Page 23 The Meter can install in the AC combiner box or other places that are unable to be touched by children. Sunways CT integrated a cable with length of 2m and could be extended to 5m Figure 4-35 Meter wiring diagram...
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Page 24: Communication Connection
③ Export limitation & control or generation limit solution Any further difficulties in export limitation & control or generation limit solution, wiring in- structions and configuration, please contact Sunways after-sales at service@sunwaystech. Figure 4-38 com. You can also refer to chapter 6.7. - Page 25 Inverter communication interface and definition as shown in table 4-39: 4.5.2 Communication between inverter and meter The communication between meter and inverter is an RJ45 interface cable. A 10M length me- Type Definition ter communication cable is already attached to the inverter when you received it and this ca- ble could be extended up to 100M.
- Page 26 Before purchasing the battery, you have to make sure the battery you selected is in the battery approval list of Sunways, otherwise, the system may not work properly. Please contact your installer or Sunways service team for confirmation if you're not sure about Note...
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Page 27: Monitoring Device Installation
Definition COM/DRMO REFGEN ※ 4.6 Monitoring Device Installation Sunways STH-3K~8KTL series hybrid inverter can be monitored through either WiFi or LAN, Figure 4-45 DRED terminal and you can alternatively select according to your preference. DRED terminal definition： Plug the WiFi or LAN module into the Com1 port in the bottom of inverter by following the direction the side with indicator is up (as shown in Figure 4-47). -
Page 28: Equipment Commission And Stop
5 Equipment Commission and Stop 5.1.3 System Commission For instruction on how to select/active country grid code, protection settings, power quality ※ 5.1 Equipment commission response moude and region settings as per to AS/NZS 4777.2:2020, please refer to 6.2 Coun- 5.1.1 Verification before power on try code (safety code setting), 6.5 Grid protection settings, 6.4 power quality response modes. -
Page 29: General Operation
6 General Operation 6.1.2 Advanced Setting Advanced InPut On-Off Grid OffGrid Peakload ※ 6.1 Display Operation Relax OffGrid Settings Password ReConn Shifting When the inverter is turned on, the following interfaces will be displayed on the OLED dis- play, and you can check the information and modify the parameters of the inverter by short Verify OK Setting Setting... - Page 30 Abbreviation Complete Name Inverter Display Abbreviation and Complete Name Reference Table E-Day Daily Energy Generation Abbreviation Complete Name E-Total Total Energy Generation Work Mode Current Work Mode / Work Mode Setting H-Total Total Generating Hours Peakload Shifting Peakload Shifting Function Switch System Info System Infomation SetMaxGrid kVA...
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Page 31: Country Code (Safety Code) Setting
The default for this function in Australia is the ON state. User have access to view the power quality response moude status in Sunways Por- For compliance with AS/NZS 4777.2:2020, please select from Region A/B/C New Zealand. -
Page 32: Fixed Power Factor Setting
If you are installer, please contact importer for password. If there are any prob- 6.4.2 Reactive power regulation for voltage variation (Volt-VAr mode) lems in the installation process, please call Sunways service telephone at +86400-9922-958 This mode can be enabled via the configuration software.It is enabled by default in some or email Sunways at service@sunways-tech.com for consultation. -
Page 33: Export Limit And Generation Limit
Generation Limit. If you are installer, please contact importer for password. If function can be enabled. there are any problems in the installation process, please call Sunways service telephone Please set “Export Limit” under the menu “Export Limit” in “Advanced Settings”. -
Page 34: Online Monitoring App
Change a thicker AC cable if it is. Grid Voltage Fault Sunways inverter provides a monitoring port that can collect and transmit data from the ② Extend the voltage protection range if it is allowed by the electricity company. - Page 35 Error Message Solution Error Message Solution ① Check if part of the PV array is sheltered. ① Restart the inverter. PV Power Low Inverter OF ② Check if the sunlight is sufficient at the PV installed area. ② Seek for help from the installer or manufacture. ①...
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Page 36: Pv System For Ground Faults
STH-3KTL-HSS STH-3.6KTL-HSS STH-3KTL-HS STH-3.6KTL-HS STH-4.2KTL-HS Message "GFCI Fault" will be displayed in the Results menu on the inverter user interface. PV Input At the same time, the Sunways monitoring system will also issue an alarm. Start-up Voltage (V) Max. DC Input Voltage (V) ※... - Page 37 Model STH-3KTL-HSS STH-3.6KTL-HSS STH-3KTL-HS STH-3.6KTL-HS STH-4.2KTL-HS Model STH-4.6KTL-HS STH-5KTL-HS STH-6KTL-HS STH-7KTL-HS STH-8KTL-HS Efficiency PV Input Max. Efficiency 97.6% 97.6% 97.6% 97.6% 97.6% Start-up Voltage (V) Max. DC Input Voltage (V) European Efficiency 97.0% 97.0% 97.0% 97.0% 97.0% Battery Charged by PV Max. Efficiency 98.0% 98.0% 98.0%...
- Page 38 Model STH-4.6KTL-HS STH-5KTL-HS STH-6KTL-HS STH-7KTL-HS STH-8KTL-HS ① The grid feed in power for AS/NZS 4777.2 is limited 4.99kW & 4.99kVA & 21.7A. Efficiency ② Max apparent power from the grid means the maximum power imported from the utility grid Max. Efficiency 97.6% 97.6% 97.6%...
- Page 39 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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