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User Manual S3/3K6/4K/4K6/5K/6K-S STRING INVERTER Carefully read this inverter user instructions before using. Read and save these instructions.
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ZHEJIANG HYXI TECHNOLOGY CO., LTD (hereinafter referred to as "HYXIPOWER"). TRADEMARKS and other HYXIPOWER trademarks are the trademarks or registered trademarks of HYXIPOWER All other trademarks mentioned herein are the properties of their respective owners.
HYX-S(3~6)K-S User Manual Contents Contents Preface ....................................1 Overview ..................................1 Scope of application..............................1 For readers ..................................1 Use of the manual .................................1 Use of symbols................................1 1. Safety Precautions ..............................3 1.1 General Safety ..................................3 1.2 Public Grid .....................................3 1.3 Photovoltaic String ................................3 1.4 Inverter ....................................4 1.5 Personnel Requirements ..............................4 2.
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HYX-S(3~6)K-S User Manual Contents 4.5 Installing the Inverter ..............................15 4.5.2 Installation Steps ................................15 5. Electrical Connection ............................16 5.1 Installation Precautions ..............................16 5.2 Electrical Connection Overview ..........................16 5.3 Electrical Connections ..............................17 5.3.1 External Grounding Requirements ........................17 5.3.2 Grounding Procedure ..............................18 5.4 AC Side Connection ...............................18 5.4.1 AC Side Requirements ..............................18 5.5 DC Side Connection ..............................20...
Users should refer to the actual product purchased and obtain the latest version of the manual by downloading from www.hyxipower.com or through sales channels. The latest version of the manual is available for download at or through sales channels.
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HYX-S(3~6)K-S User Manual Preface DANGER • Indicates a high potential hazard that, if not avoided, could result in death or serious injury. WARNING • Indicates a moderate potential hazard that could result in death or serious injury if not avoided. CAUTION •...
HYX-S(3~6)K-S User Manual 1. Safety Precautions 1. Safety Precautions 1.1 General Safety NOTICE • The "DANGER", "WARNING", "CAUTION", and "NOTICE" items in the manual do not include all safety precautions that should be observed. All work should be carried out in combination with the actual situation on site. •...
HYX-S(3~6)K-S User Manual 1. Safety Precautions 1.4 Inverter DANGER • Before plugging or unplugging the PV connector or AC connector, please use a multimeter to measure to make sure there is no there is no voltage or current. • Make sure that the voltage and frequency of the grid connection point are in accordance with the grid connection specification of the inverter.
HYX-S(3~6)K-S User Manual 2. Product Overview 2. Product Overview This chapter mainly introduces the appearance of the grid-connected inverter, packaging accessories, nameplate, technical parameters, etc. 2.1 Product Description HYX-S(3~6)K-S is a single-phase string type PV grid-connected inverter, The main function of a single-phase string type photovoltaic grid-connected inverter is to convert the DC power generated by photovoltaic modules into AC power and feed electrical energy into the grid, This paper mainly covers the following product models:...
HYX-S(3~6)K-S User Manual 2. Product Overview 2.2.1 Grid Forms Supported By PV Grid-Connected Inverters The grid forms supported by PV grid-connected inverters are TN-S, TN-C, TN-C-S, TT. The voltage requirement of N to PE is less than 30V. WARNING • The inverter is only applicable to the grid-connected power generation system described in this paper.
HYX-S(3~6)K-S User Manual 2. Product Overview 2.4 Product Appearance Name Description LED Indicator Panel Indicates the current operating status of inverter Mounting Pegboard Fixed inverter top Mounting Bracket Fixed inverter bottom Fin Heat Sink Heat dissipation and ventilation DC Switch On/Off DC input DC Switch Lock DC lock hole Reserved(Australia)
HYX-S(3~6)K-S User Manual 2. Product Overview 2.8 Description of The Principle • The DC switch is used to safely cut off the DC current when necessary to ensure the safe operation of the inverter and the safety of personnel. • The EMI filter filters out electromagnetic interference inside the inverter to ensure that the inverter can meet the requirements of EMC standards.
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HYX-S(3~6)K-S User Manual 2. Product Overview After the communication equipment is successfully established, users can view the inverter- • related information or set the inverter operating parameters, protection parameters, etc. through the Hyxi Smart Energy Management Platform. • After successful establishment with the communication equipment, users can view inverter- related information or set inverter operating parameters, protection parameters, etc.
HYX-S(3~6)K-S User Manual 3. Inspection & Storage 3. Inspection & Storage 3.1 Safe Transport of The Inverter When transporting the inverter, the original or equivalent packaging should be used, and the maximum layers for original carton is six, as this ensures safe transport. 3.2 Unpacking and Inspection The equipment has been completely tested and strictly inspected before leaving the factory, but it may still be damaged during transportation, please make a detailed inspection before...
HYX-S(3~6)K-S User Manual 4. Mechanical Installation 4. Mechanical Installation 4.1 Installation Precautions DANGER • Before installing the inverter, be sure that the inverter is free of any electrical connections. • Make sure to avoid the utility alignments in the wall before drilling holes to avoid any danger.
HYX-S(3~6)K-S User Manual 4. Mechanical Installation Installation angle requirements: The mounting carrier has a load-bearing capacity of at least 4 times the weight of the • inverter, and the carrier has fireproof characteristics. • It is recommended that the inverter be installed vertically or tilted back ≤ 15° to facilitate the heat dissipation of the machine.
HYX-S(3~6)K-S User Manual 4. Mechanical Installation 4.5 Installing the Inverter After carrying the inverter to the installation site, mount the pegboard to the wall with the expansion bolt assembly, and then hang the inverter on the pegboard. 4.5.1 Hanging Plate Size 4.5.2 Installation Steps •...
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5. Electrical Connection 5.1 Installation Precautions Before electrical connection, please remember that the inverter has a dual power supply. During electrical operation, professional personnel must wear protective equipment. DANGER • High voltage may be present in the inverter. •...
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5.3.2 Grounding Procedure The cross-sectional area of the secondary grounding cable must be the same as the cross- sectional area of the PE core in the AC cable. The secondary grounding cable and terminal block are to be prepared by the customer. •...
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HYX-S(3~6)K-S User Manual 5. Electrical Connection Leakage current protector The inverter is equipped with an integrated comprehensive leakage current monitoring unit. When the inverter detects leakage current greater than the allowed value, it will be quickly disconnected from the power grid. If the leakage protection switch is installed outside, the working current must be ≥...
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5.5 DC Side Connection DANGER • Electric shock hazard! • Pay attention to safety before electrical connection, as photovoltaic arrays exposed to sunlight will generate dangerous voltages. WARNING • Before connecting the PV array to the inverter, ensure that the PV array is well insulated from the ground.
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5.5.2 Assembling DC Connectors • Step 1: Strip all DC cable insulation by approximately 7 mm. • Step 2: Use crimping pliers to bundle the cable ends at the terminals. • Step 3: Insert the cable through the cable sealing sleeve, insert it into the insulating sleeve and fasten it, and pull the cable gently to make sure it is tightly connected.
HYX-S(3~6)K-S User Manual 5. Electrical Connection DANGER • High voltage may be present in the inverter ! • Make sure that all cables are not energized before performing electrical operations. • The AC circuit breaker switch must not be closed until the inverter electrical connections are complete.
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5.6 Communication Connection 5.6.1 DCS Installation(WIFI module) • Step 1: Remove the waterproof cover at the communication interface of the inverter; • Step 2: Insert DCS into the corresponding communication terminal at the bottom of the inverter and tighten it to ensure it is secure.
HYX-S(3~6)K-S User Manual 5. Electrical Connection 5.6.3 DCS Installation(Ethernet module) • Step 1: Replace the bottom plug of DCS with the ethernet plug; • Step 2: Insert the network cable connector into the network junction; • Step 3: Remove the waterproof cover at the communication interface of the inverter; •...
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HYX-S(3~6)K-S User Manual 5. Electrical Connection Mode Inverter DRM Connection Request When switches S0 and S9 are switched on, the solar inverter should be turned off. DRM0 REF GEN & COM LOAD When switch S0 is switched off, and switch S9 is switched on, the solar inverter should be grid-tied.
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HYX-S(3~6)K-S User Manual 5. Electrical Connection Enable the DRM function through the HYXiPower APP. If there are any problems, contact your distributor first. If the problem persists, contact HYXiPower. The DRM function is only applicable to devices for Australia and New Zealand.
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HYX-S(3~6)K-S User Manual Electricity Meter Wiring (Single Inverter)
HYX-S(3~6)K-S User Manual 6. Operation 6. Operation This chapter introduces the operation of PV inverter, which mainly covers the inspection before inverter operation, inverter grid connection operation, inverter shutdown and inverter routine maintenance and repair precautions. This chapter introduces the operation of PV inverter, mainly involves the inspection of inverter before operation, inverter grid connection operation, inverter shutdown, and inverter routine maintenance.
HYX-S(3~6)K-S User Manual 6. Operation CAUTION • Burning hazard! • After the inverter has been shut down, there is still a risk of burns. After the inverter has cooled down, it is necessary to wear protective gloves before operating the inverter. It is not necessary to shut down the inverter under normal circumstances, but it is necessary to shut down the inverter when maintenance or repair work needs to be performed.
HYX-S(3~6)K-S User Manual 6. Operation 6.5 Abolition of Inverter CAUTION • Some parts and equipment of the inverter, such as capacitors, may cause environmental pollution. • Please do not dispose of this product with household waste, and dispose of it in accordance with the regulations for disposal of electronic waste used at the installation site.
HYX-S(3~6)K-S User Manual 6. Operation CAUTION • Restart the inverter only after troubleshooting faults that affect the safety performance of the inverter. • The inverter does not contain service parts inside, do not replace the internal components of the inverter without permission. •...
HYX-S(3~6)K-S User Manual 6. Operation 6.7 Troubleshooting Alarm Alarm Alarm Name Possible Cause Suggestion Level 1. If the alarm occurs occasionally, the power grid may be abnormal temporarily. The inverter automatically recovers after detecting that the power grid becomes 1. The grid voltage is normal.
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HYX-S(3~6)K-S User Manual 6. Operation 1. Measure the actual grid frequency, 1. The frequency of if the grid frequency is indeed beyond the power grid is the set range, please contact the local lower than the normal power company for a solution; frequency range;...
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HYX-S(3~6)K-S User Manual 6. Operation Generally, the inverter will be reconnected to the grid after the internal temperature or module temperature returns to normal, if the fault occurs repeatedly: 1.Check whether the ambient The temperature in temperature of the inverter is too high. The ambient the chassis is too high;...
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HYX-S(3~6)K-S User Manual 6. Operation 1. Disconnect the DC power supply, and check whether any DC cable is damaged, the connection terminal or fuse is loose or there is a weak contact. If so, replace the damaged cable, fasten An AFCI fault occurs the terminal or fuse, and replace the AFCI Fault 5318...
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HYX-S(3~6)K-S User Manual 6. Operation 1. Try the inverter power down and restart; The fan is stalled 2. Check whether the fan wiring is loose or the fan speed and damaged, and whether the fan Fan alarm 5444 Minor measurement circuit is blades are blocked;...
Scan the following QR code to download and install the App according to the prompt information: 7.2 APP User manual For more information on using the HYXiPower APP, please refer to the user manual "HYXiPower APP". 7.3 System debugging For system configuration and debugging, please refer to the user manual "HYXipower Local...
HYX-S(3~6)K-S User Manual 8. Appendix 8.3 Isolating Switch Information Isolating switch model GHX5-32P/3P 750-40-2-0 Isolating switch manufacturer Beijing People’s Electric Plant Co., Ltd (i) rated insulation voltage 1500V (ii) rated impulse withstand voltage 8000V (iii) suitability for isolation (iv) rated operational current (v) utilization category and/or PV utilization DC-PV2 category...
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Version: v1.0 2023 The manual is subject to change without notice while the product is being improved. Zhejiang Hyxi Technology Co., Ltd. 9-10F, Building 3, Jiuyao Commercial Center, Zhuantang Sub-district, Xihu District, Hangzhou, Zhejiang Province, China, 310008 support@hyxipower.com www.hyxipower.com...
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