Related Manuals for Sunways STH 3-8kW Series
Summary of Contents for Sunways STH 3-8kW Series
- Page 1 User Manual H y b r i d I n v e r t e r STH 3~8KTL-HS 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 .................11 3.2 Appearance Introduction ..............16 3.3 Display Interface ................18 3.4 Packing List ..................19 4. -
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
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
3.1.1 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 3 Product Introduction 3 Product Introduction * 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. Loads In the purely off-grid mode, power from PV will supply the back-up loads first and then...
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Page 9: Appearance Introduction
3 Product Introduction 3 Product Introduction ※ 3.2 Appearance Introduction 3.2.3 Inverter bottom view 3.2.1 Inverter front view Battery Input Terminal Com2 Port 550mm Logo DC Switch (Optional) Back Rail Display Com1 Port DC Input Terminal Figure 3-5 Bottom view 3.2.4 Inverter back view Figure 3- 3 Front view 3.2.2 Inverter side view... -
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 Cord End Terminal×6 Monitoring Device (Optional) L-shaped Plate(Optional) AC Cover Sunways Meter Sunways Meter with 3 CTs ×1 Monitoring Device × 1(Optional) L-shaped Plate×1，Screw× 3 AC Cover× 1 , Screw× 6 Cord End Terminal × 4 User Guide...
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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 3~8kW series is designed with IP65 protection for indoor and outdoor in- stallations. 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: Mounting The Inverter (Including L-Shaped Plate)
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... -
Page 15: Electrical Connection
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 Neutral line of AC supply can be isolated or switched. To Battery AC Breaker 1(L) AC Breaker 4(N) AC Breaker To Sunways Meter 5(L-S1) Sunways Meter 6(L-S2) Power Meter Figure 4-8 Figure 4-14 Standard wiring diagram Figure 4-13 Standard wiring diagram...
- Page 17 4 Product Installation 4 Product Installation This diagram is an example for Australia and New Zealand. Neutral line of AC supply must 4.4.2 External ground connection not be isolated or switched. Connect the inverter and ground bar through PE wire to achieve the purpose of grounding protection.
- Page 18 4 Product Installation 4 Product Installation 4.4.3 Inverter PV string connection ③ Disassemble the connector in the accessory bag, as shown in Figure 4-18: 1. The following principles must be considered when making electrical connections to the invert- ① Disconnect the AC breaker on the grid side. ②...
- Page 19 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 W ren c h ① Disconnect the AC breaker on the grid side. ②...
- Page 20 ② Before making the connection of AC cable, please confirm all DC & AC power source are disconnected from the inverter. ③ The Sunways STH 3~8kW series single-phase high voltage hybrid inverter applies to the single-phase power grid with a voltage of 230V and a frequency of 50/60Hz.
- Page 21 2. AC connector assembly procedures ② Insert the stripped AC cables through the AC connector cover in the sequence as shown in The recommended AC cable and AC breaker for Sunways STH 3~8kW series single-phase hy- Figure 4-28: brid inverter are as shown in the following table:...
- Page 22 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 23 NULL Note NULL ② The CTs have been connected to the Sunways Meter when you received them, and you just need to follow the wiring diagram in the Meter to connect CT, as shown in Figure 4-35. AC Breaker RS485-2...
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Page 24: 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 of METER Communicate with Meter inverter which including Meter port, CAN port, BMS port, EMS port, RLYOUT port, DRED port, as shown in Figure 4-37、4-38. - Page 25 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 26 DRM1/5 4.5.6 One key to shut off Sunways STH 3~8kW hybrid inverter comes standard with one key to shut off function, and you can use this function by connecting an external switch into the DRED interface if it re- Figure 4-44 EMS communication wiring diagram quires in the installation place.
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Page 27: Monitoring Device Installation
※ 4.6 Monitoring Device Installation ② Turn on the lithium battery switch. Sunways STH 3~8kW series hybrid inverter can be monitored through either WiFi or LAN, and ③ Switch on the AC breaker first. you can alternatively select according to your preference. -
Page 28: General Operation
6 General Operation 6 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... - Page 29 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 30: Auto-Test
6.3 Online Monitoring APP Connect the AC cable, auto test will start after the inverter connected to the grid, see the op- Sunways inverter provides a monitoring port that can collect and transmit data from the eration steps below: inverter to Sunways monitoring platform via an external monitoring device. Please refer to the product nameplate on side of enclosure to get the monitoring application. -
Page 31: Troubleshooting
※ 7.1 Fault Messages ① Check if part of the PV array is sheltered. Sunways STH 3~8kW series single-phase hybrid inverter is designed in accordance with grid PV Power Low ② Check if the sunlight is sufficient at the PV installed area. -
Page 32: Maintenance
As the inverter contains no component parts that can be maintained, never arbitrarily replace any internal components. ① Restart the inverter. For any maintenance need, please contact Sunways. Otherwise, Sunways shall not be Phase Order Err Attention ② Seek for help from the installer or manufacture. -
Page 33: Technical Parameters
8 Technical Parameters 8 Technical Parameters 8 Technical Parameters Model STH-3KTL-HSS STH-3.6KTL-HSS STH-3KTL-HS STH-3.6KTL-HSS STH-4.2KTL-HS Model STH-3KTL-HSS STH-3.6KTL-HSS STH-3KTL-HS STH-3.6KTL-HSS STH-4.2KTL-HS Output (Back-up) PV Input Voltage Harmonic Distortion <3% @Linear Load Efficiency Start-up Voltage (V) Max. Efficiency 97.6% 97.6% 97.6% 97.6% 97.6% Max. - Page 34 8 Technical Parameters 8 Technical Parameters Model Model STH-4.6KTL-HS STH-5KTL-HS STH-6KTL-HS STH-7KTL-HS STH-8KTL-HS 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) European Efficiency 97.0% 97.0% 97.0% 97.0% 97.0% Max. DC Input Voltage (V) Battery Charged by PV Max.
- Page 35 8 Technical Parameters ① The grid feed in power for AS/NZS 4777.2 is limited 4.99kW & 4.99kVA & 21.7A. ② Max apparent power from the grid means the maximum power imported from the utility grid used to satisfy the backup loads and charge the battery. ③...
- 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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