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Summary of Contents for Sunways STH-4KTL-HT
- Page 1 User Manual H y b r i d I n v e r t e r STH 4~12KTL-HT 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 ……………………………………………………… 1.1 Overview ……………………………………………………………… 5 1.2 Target Groups ……………………………………………………… 5 2 Safety Instructions ……………………………………… 2.1 Safety Notes ………………………………………………………… 6 2.2 Statement …………………………………………………………… 6 2.3 Important Safety Matters ………………………………………… 7 2.4 Symbols Explanation ……………………………………………… 8 3 Product Introduction …………………………………… 3.1 Basic Features ………………………………………………………... -
Page 3: Preface
The products, services or features you purchase are subject to the commercial con- tracts and terms of Ningbo Sunways technologies Co., Ltd. All or part of the products, ※ 1.2 Target Groups services or features described in this document may not be within your purchasing or This manual is applicable to the electrical installers with professional qualifications and using scope. -
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 Warning the following circumstances: ①... -
Page 5: Symbols Explanation
2 Safety Instructions 2 Safety Instructions 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. -
Page 6: Product Introduction
※ 3.1 Basic Features 3.1.1 Function Sunways STH series is also known as hybrid inverter or storage inverter, which is mainly used to combine the PV array, lithium battery, loads and power grid to realize intelligent power management and dispatching Electric shock hazard, it is strictly forbidden to use the person to disassemble the invert- er casing. - 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 App) to charge the battery in the predetermined period. 3.1.6 Off-grid Output Ability (UPS Ability) Inverter Sunways STH hybrid inverter overloading ability in off-grid work mode describes as following: Battery Grid Off-grid Overloading Ability Illustration...
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Page 9: Appearance Introduction
3 Product Introduction 3 Product Introduction 3.1.7 Storage conditions 3.2.3 Inverter bottom view ① Inverter must be stored in its original packaging. Battery Input Terminal Com2 Port ② The storage temperature should be in the range of -30 ° C and + 60 ° C, and the relative humidity stored should be less than 90%. -
Page 10: Display Interface
3 Product Introduction 3 Product Introduction ※ 3.3 Display Interface Item Indicator Status Description Definition The inverter is running normally. Battery Level Indicator The monitoring device is not connected to the router or is Power Indicator Slow flashing not connected to the base station. Grid Indicator Alarm The monitoring device is connected to the router or con-... - Page 11 Cord End Terminal×6 Sunways Meter A Monitoring Device (Optional) L-shaped Plate(Optional) Sunways Meter B Sunways Meter A with 3 CTs ×1 Sunways Meter B with 3 CTs ×1 Cord End Terminal × 8 Cord End Terminal × 8 Monitoring Device × 1(Optional) L-shaped Plate x1,Screw x3 According to the different shipping time, we have two different types of meters.
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Page 12: Product Installation
Do not put flammable and explosive articles around the inverter. ※ 4.1 Selection of Installation Location Warning The Sunways STH 4~12kW series is designed with IP65 protection for indoor and outdoor installations. When selecting an inverter installation location, the following factors should be considered: 4.1.2 The requirements for inverter installation spacing are shown in Figure 4-2:... -
Page 13: Mounting The Inverter(Standard Bracket)
4 Product Installation 4 Product Installation ※ 4.2 Mounting the Inverter (standard bracket) Before drilling, make sure to avoid the buried water tube and electric wires in the wall to 4.2.1 Wall bracket installation avoid danger. Dimensions of wall bracket, see Figure 4-4: Warning 300mm ③... - Page 14 4 Product Installation 4 Product Installation ※ 4.3 Mounting the Inverter （Including L-shaped Plate） ② Bracket assembly Prepare the two M5 screws and L-shaped plate in the accessory bag, then fix the L-shaped- 4.3.1 Wall bracket installation plate to the mounting bracket. Dimensions of wall bracket, see Figure 4-8: 300mm 150mm...
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Page 15: Mounting The Inverter (Including Bracket Options)
Warning 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- Figure 4-12 Mounting the inverter use of terminals. - Page 16 Single inverter wiring diagram This diagram is an example without special requirement on electrical wiring connection. Neutral line of AC supply can be isolated or switched. If you get Sunways meter A, please refer to Figure 4-14A： To Battery AC Breaker...
- Page 17 4 Product Installation If you get Sunways meter B, please refer to Figure 4-14B： This diagram is an example for Australia and New Zealand. Neutral line of AC supply must not be isolated or switched. 1(L1) 2(L2) 3(L3) 4(N) 5(L1-S1)
- Page 18 4 Product Installation For Sunways meter B, please refer to Figure 4-15B: 4.4.2 External ground connection Connect the inverter and ground bar through PE wire to achieve the purpose of grounding protection. Please always remember wiring the PE wire before wiring other wires.
- Page 19 4 Product Installation 4 Product Installation ③ Disassemble the connector in the accessory bag, as shown in Figure 4-18: 4.4.3 Inverter PV string connection 1. The following principles must be considered when making electrical connections to the in- verter: ① Disconnect the AC breaker on the grid side. ②...
- Page 20 4 Product Installation 4 Product Installation 4.4.4 Inverter battery connection 1. The following principles must be considered when making battery connection: O p e n - e n d Wre n c h ① Disconnect the AC breaker on the grid side. ②...
- Page 21 ② Before making the connection of AC cable, please confirm all DC & AC power source are disconnected from the inverter. ③ The Sunways STH 4~12kW series three-phase high voltage hybrid inverter applies to the three-phase power grid with a voltage of 230/400V and a frequency of 50/60Hz.
- Page 22 4 Product Installation 4 Product Installation 2. AC connector assembly procedures The recommended AC cable and AC breaker for Sunways STH 4~12kW series three-phase hybrid inverter are as shown in the following table: ON-GRID STH-4KTL STH-5KTL STH-6KTL STH-8KTL STH-10KTL STH-12KTL...
- Page 23 The Meter can install in the AC combiner box or other places that are unable to be touched back-up port when making the connection. Caution by children. Sunways CT integrated a cable with length of 2m and could be extended to 5m at max.
- Page 24 L2-S1 Note L2-S2 L2-S2 ② The CTs have been connected to the Sunways Meter when you received them, and you L3-S1 L3-S1 just need to follow the wiring diagram in the Meter to connect CT, as shown in Figure 4-35.
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Page 25: Communication Connection
4 Product Installation 4 Product Installation ※ 4.5 Communication Connection Inverter communication interface and definition as shown in table 4-39: 4.5.1 Communication wiring illustration Type Definition All communication ports are hidden behind the communication terminal at the bottom METER Communicate with Meter of inverter which including Meter port, CAN port, BMS port, EMS port, RLYOUT port, DRED port, as shown in Figure 4-37、4-38. - 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 METER Note 4.5.4 Multiple inverters parallel connection/EMS/Relay output dry contact...
- Page 27 Figure 4-44 EMS communication wiring diagram requires in the installation place. The external switch doesn't include in our accessory box. ② Sunways STH 4~12kW series hybrid inverter integrated a set of relay output dry con- Please refer to Figure 4-46 for the external switch connection.
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Page 28: Monitoring Device Installation
※ 4.6 Monitoring Device Installation ② Turn on the lithium battery switch. Sunways STH 4~12kW series hybrid inverter can be monitored through either WiFi or LAN, ③ Switch on the AC breaker first. and you can alternatively select according to your preference. -
Page 29: General Operation
6 General Operation 6 General Operation 6 General Operation 6.1.2 LAN/WIFI Setting ※ 6.1 Display Operation DHCP ON Gateway When the inverter is turned on, the following interfaces will be displayed on the OLED LAN Reset DHCP Set IP Address Subnet Mask DNS Address Address... - Page 30 6 General Operation 6 General Operation 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...
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Page 31: Auto-Test
3 seconds to check the test result. Sunways inverter provides a monitoring port that can collect and transmit data from Connect the AC cable, auto test will start after the inverter connected to the grid, see the the inverter to Sunways monitoring platform via an external monitoring device. -
Page 32: Troubleshooting
ISO Over Limita- ② Check if the insulation of the wires in PV, bat- Sunways STH 4~12kW series three-phase hybrid inverter is designed in accordance with by poor insulation to ground of tion tery, and AC is damaged. - Page 33 ② If the neutral & ground cable are connected ① Restart the inverter. Bus Volt Low Bus voltage is too low. well, please contact Sunways. ② Seek for help from the installer or manufacture. ① Restart the inverter. ① Restart the inverter.
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Page 34: Maintenance
① Restart the inverter. Phase Order Err phase sequence error. For any maintenance need, please contact Sunways. Otherwise, Sunways shall not be ② Seek for help from the installer or manufacture. Attention held liable for any damage caused. -
Page 35: Technical Parameters
8 Technical Parameters 8 Technical Parameters 8 Technical Parameters Model STH-4KTL-HT STH-5KTL-HT STH-6KTL-HT Peak Overload Apparent Power (kVA) , 60s , 60s , 60s ② ② ② Model STH-4KTL-HT STH-5KTL-HT STH-6KTL-HT Single-phase Peak Output Power (kVA) ③ ③ ③ Voltage Harmonic Distortion <3% @Linear Load... - Page 36 8 Technical Parameters 8 Technical Parameters Model STH-8KTL-HT STH-10KTL-HT STH-12KTL-HT Model STH-8KTL-HT STH-10KTL-HT STH-12KTL-HT PV Input Efficiency Max. Input Power (W) 10,400 13,000 15,600 Max. Efficiency 98.2% 98.2% 98.2% Start-up Voltage (V) European Efficiency 97.4% 97.4% 97.4% Max. DC Input Voltage (V) 1,000 1,000 1,000...
- Page 37 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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