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East EAHI KTH-S Series Manual

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1 Introduction ........................................................................................................................ 1
1.1 Applicable product ......................................................................................................... 1
1.2 Applicable personnel ..................................................................................................... 1
1.3 Symbol definition ........................................................................................................... 1
1.4 Version information ....................................................................................................... 1
2 Safety instructions ............................................................................................................. 2
2.1 General safety instructions ............................................................................................ 2
2.2 PV array safety ............................................................................................................. 2
2.3 Inverter safety ............................................................................................................... 3
2.4 Battery safety ................................................................................................................ 4
2.5 Personnel requirements ................................................................................................ 4
2.6 EU compliance statement ............................................................................................. 4
3 Product overview ................................................................................................................ 5
3.1 Product description ....................................................................................................... 5
3.2 System configuration option .......................................................................................... 6
3.3 Application scenarios .................................................................................................... 8
3.3.1 System connection method ........................................................................................ 9
3.4 Supported grids ........................................................................................................... 14
3.5 Operating mode .......................................................................................................... 14
3.6 Operating status of inverter ......................................................................................... 18
3.7 Appearance description ............................................................................................... 19
3.7.1 Inverter ................................................................................................................ 19
3.7.2. Distribution box ................................................................................................... 22
3.7.3 Battery (EHBS-P5-TH) ......................................................................................... 29
3.7.4 Base support ....................................................................................................... 30
4 Storage and inspection of inverter .................................................................................. 32
4.1 Inspection before acceptance...................................................................................... 32
4.2 Packing list of inverter ................................................................................................. 32
4.4 Packing list of PDU-GU-Y /PDU-GU-F ........................................................................ 34
5 Installation ........................................................................................................................ 36
5.1 Installation preparation ................................................................................................ 36

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  • Page 1: Table Of Contents

    Table of Contents 1 Introduction ........................1 1.1 Applicable product ......................1 1.2 Applicable personnel ..................... 1 1.3 Symbol definition ......................1 1.4 Version information ....................... 1 2 Safety instructions ......................2 2.1 General safety instructions .................... 2 2.2 PV array safety ......................2 2.3 Inverter safety .......................
  • Page 2 5.1.1 Installation environment requirements..............36 5.1.2 Requirements of installation tools ................ 38 5.1.3 Selection of installation location ................38 5.2 System installation ...................... 39 5.2.1 Handling of inverter and battery ................39 5.2.2 System installation ....................40 6 Electrical connection ......................50 6.1 Connection of ground wire ..................
  • Page 3 10.2 Maintenance of inverter unused for long period ............83 10.3 Power off inverter ...................... 83 10.4 Battery maintenance ....................84 10.5 Battery safety ......................84 10.6 Battery storage and charging ..................84 11 Troubleshooting ......................86 11.1 Fault level list ......................86 11.2 Troubleshooting ......................

  • Page 4: Introduction

    1 Introduction This document is prepared to mainly introduce the product information, installation, wiring, configuration, commissioning, troubleshooting and maintenance of the inverters. Before installation ruse of the inverters, please read this manual carefully to understand the safety information, functions and features of the inverters. This document may be updated from time to time. Please visit our official website for the latest version and more information.

  • Page 5: Safety Instructions

    2 Safety instructions The safety instructions contained in this document must be followed during equipment operation Attention The inverter has been designed and tested in strict accordance with safety regulations. However, it is required to read relevant safety instructions before making any operation on an electrical device. Any improper operation may result in serious injury or property damage.

  • Page 6: Inverter Safety

    2.3 Inverter safety Warning • Ensure that the voltage and frequency of the grid connection point meet the grid connection requirement of the inverter. • A protection device, such as a circuit breaker or fuse, is recommended for the AC side of the inverter. The specification of the protection device should be greater than 1.25 times the rated AC output current of the inverter.

  • Page 7: Battery Safety

    2.4 Battery safety Caution • The batteries used for stacking with the inverters comply with relevant national and international certification standards. Please store, install and use such batteries correctly as required. • Read the user manual of the battery carefully before installing the inverter to understand the battery and its considerations.

  • Page 8: Product Overview

    3 Product overview 3.1 Product description EAHI10-20KTH-S-series, a hybrid system for residential buildings, consists of inverters and batteries. Through the system, the solar energy can be converted into electrical energy and stored in the battery for future use. The system can be operated in the mode of self-generating electricity and self use, the mode of supplying the excessive energy to the gird and other set operating modes, and featured with high efficiency, high reliability, parallel operation and intelligent monitoring, etc.

  • Page 9: System Configuration Option

    3.2 System configuration option Master cluster configuration Expanded cluster configuration System Inverter Distribution High-voltage Distribution High-voltage capacity 10/15/20K box for the battery box for the battery Recommended master EHBS-P5-TH expanded EHBS-P5-TH configuration cluster cluster scheme PDU-GU-Y PDU-GU-F 10 kWh 15 kWh 20 kWh 20 kWh 25 kWh...
  • Page 10 20 kWh / 10/15/20kW 25 kWh / 10/15/20kW 30 kWh / 10/15/20kW 35 kWh / 10/15/20kW 40 kWh / 10/15/20kW 45 kWh / 10/15/20kW 50 kWh / 10/15/20kW 55 kWh / 10/15/20kW 60 kWh / 10/15/20kW ~ 7 ~...

  • Page 11: Application Scenarios

    3.3 Application scenarios Warning  The photovoltaic system is not suitable for connecting with the equipment requiring stable power supply, such as life-sustaining medical devices and banking devices. Ensure that no personal injury is caused in case of the power failure in the system. ...

  • Page 12: System Connection Method

    3.3.1 System connection method Connection method 1: General system connection method: Used in new photovoltaic and energy storage scenarios. ~ 9 ~...
  • Page 13 Connection method 2: Generator connection: When it is required to install a generator, connect the generator output to the generator input port on the the inverter. See 3.5 “Generator Mode” for the specific operation mode. ~ 10 ~...
  • Page 14 Connection method 3: AC coupling 1: When a PV inverter has been installed, connect the output cable of the PV inverter to the generator input port of the inverter without needing additional CT. ~ 11 ~...
  • Page 15 Connection method 4: AC coupling 2: When a PV inverter has been installed, connect CT to the CT pin in the COM port on the local panel to collect the output current of the grid-tied inverter. For the wiring details, see 6.5.4 COM Communication Port.
  • Page 16 Connection method 5: Intelligent load mode: Set the generator input connection point as the load connection point. For the operation mode, see 3.5 “Intelligent Load Mode”. Note 1: The figure shows the example of connecting through CT. If a watt-hour meter is used, replace the CT with the watt-hour meter.

  • Page 17: Supported Grids

    3.4 Supported grids EAHI10-20KTH-S intelligent household power supply may be connected with the grid system by four different wiring modes TN-C /TN-S/TN-C-S/TT. The supported grid types are as follows: TN-C TN-S TN-C-S PE N L1 L2 L3 N PE L1 L2 L3 N PE L1 L2 L3 N PE L1 L2 L3 N PE Inverter...
  • Page 18 (1) The PV energy is supplied first to the backup load and then to the household load, and the grid. The excessive energy is used for the battery charging; Full power grid (2) If The PV energy is less than that required by the maximum feeding mode output power of the inverter, the battery will discharge to further supply energy for maintaining the maximum power...
  • Page 19 The generator can be started only in case of no mains or mains fault. (1) Enable the mode of charging the battery by generator: When the voltage and SOC of the battery are less than the set values, the generator will be started to charge the battery and also supply the power to the load;...
  • Page 20 energy is supplied to the grid;If the energy of the PV inverter is insufficient, the grid adds energy to supply power to the load, and the gird does not charge the battery. When the voltage and SOC of the battery are higher than set values,the PV inverter first supplies power to the load, and then supplies power to the backup load through the inverter and then charges the battery.

  • Page 21: Operating Status Of Inverter

    3.6 Operating status of inverter Fig. 3.6.1 Operating status of inverter Status Note Operate in the waiting mode after powering on Waiting • When the conditions are met, the inverter will operate in the self-check mode mode; • In case of any failure, the inverter will operate in the fault mode Before starting, the inverter is in the self-check mode of self-check and initialization;...

  • Page 22: Appearance Description

    3.7 Appearance description 3.7.1 Inverter 1. Appearance and dimensions of inverter Dimensions: 650mm*270mm*640mm Side View Front View Top View ~ 19 ~...
  • Page 23 2. Side ports of inverter Identification Purpose Identification Purpose Buzzer DC SWITCH PV switch PV1- PV1-input PV1+ PV1+ input PV2- PV2-input PV2+ PV2 +input Generator LOAD Load interface interface Upper computer GRID Grid interface access communication Remote Parallel output WIFI PARALLEL OUT communication (reserved)
  • Page 24 3. Bottom battery ports of inverter Fig. 3.7.1.1 Bottom battery ports of inverter GP25Z Identification Identification Identification Reserved Reserved RS485A RS485B RS485A RS485B CANH CANL CANH CANL Reserved START+ START- Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved ~ 21 ~...

  • Page 25: Distribution Box

    3.7.2. Distribution box 1. PDU-GU-Y (integrated) distribution box (1) Appearance and dimensions Dimensions: 650mm*270mm*150mm Fig. 3.7.2.1 Appearance of PDU-GU-Y (2) Description of top ports for PDU-GU-Y Identification Identification Identification Reserved Reserved RS485A RS485B Reserved Reserved Reserved Reserved CAN1H CAN1L Reserved START+ START- Reserved...
  • Page 26 Fig. 3.7.2.2 Top ports of PDU-GU-Y (3) Description of bottom ports for PDU-GU-Y Fig. 3.7.2.3 Bottom ports of PDU-GU-Y ~ 23 ~...
  • Page 27 (4) Description of side panel Fig. 3.7.2.4 Description of left side panel for PDU-GU-Y Identification Note Fuse of distribution box PUSE Switch of distribution box ON/OFF Switch used to connect or disconnect the inverter with the distribution box SWITCH Fig. 3.7.2.5 Description of right side panel for PDU-GU-Y Identification Note Parallel input/distribution box connection interface, which can be used...
  • Page 28 2. PDU-GU- F (split) distribution box (1) Appearance and dimensions Dimensions: 650mm*270mm*150mm Fig. 3.7.2.6 Appearance of PDU-GU- F (2) Description of bottom ports for PDU-GU- F Fig. 3.7.2.7 Bottom ports of PDU-GU- F (3) Description of monitoring panel for PDU-GU-Y and PDU-GU-F Fig.
  • Page 29 1) Description of operating and alarm indicator status Normal/ SOC LED indicator Status alarm/ ● ● ● ● ● ● Remark protection Shutdown Sleep Fully OFF Standby Normal Flicker 2 status Standby Alarm Alarm Flicker 2 Flicker 2 Indicate according to SOC given Fault Flicker 2...
  • Page 30 3) Description of SOC indicator status Status Charging Discharge SOC indicator ● ● ● ● ● ● ● ● lamp 0-25% Flicker 2 Flicker 2 Normally Normally 25-50% Flicker 2 Flicker 2 Normally Normally Normally Normally 50-75% Flicker 2 Flicker 2 Normally Normally Normally...
  • Page 31 Identification Remark PUSE Fuse of distribution box ON/OFF Switch of distribution box SWITCH Switch used to connect or disconnect the inverter with the distribution box Fig.3.7.2.10 Description of right side panel for PDU-GU F Identification Note Parallel input/distribution box connection interface, which can be used PARALLEL IN as a network port for communication/ a connection port for 120Ω...

  • Page 32: Battery (Ehbs-P5-Th)

    3.7.3 Battery (EHBS-P5-TH) 1. Appearance and dimensions of battery Dimensions: 650mm*270mm*370mm Fig. 3.7.3.1 Appearance of EHBS-P5-TH 2. Description of top ports for EHBS-P5-TH Fig. 3.7.3.2 Top ports for EHBS-P5-TH ~ 29 ~...

  • Page 33: Base Support

    3. Description of bottom ports for EHBS-P5-TH Fig. 3.7.3.3 Bottom ports for EHBS-P5-TH 3.7.4 Base support 1. Appearance and dimensions of abutment Dimensions: 650mm*270mm*50mm Fig. 3.7.4.1 Abutment appearance ~ 30 ~...
  • Page 34 2. Top ports on abutment Fig. 3.7.4.2 Top ports of abutment ~ 31 ~...

  • Page 35: Storage And Inspection Of Inverter

    4 Storage and inspection of inverter Warning If the inverter is not put into use immediately, store the inverter according to the following requirements: 1. Ensure that the outer packing box is not removed. 2. Ensure that the storage environment is clean and non-condensing, and has appropriate temperature (-25℃...
  • Page 36 Connector with 5-pin LOAD connector RBH100-32-5P-W-M-26-BK male plug on cable end, 32A Connector GEN connector RBH100-32-5P-W-M-26-BK female plug on cable end, 32A PV connector with CT75A-1T- PV connector 07 male plug on cable end and (male) metal terminals PV connector with CT75A-1T- PV connector 07 female plug on cable end (female)

  • Page 37: Packing List Of Ehbs-P5-Th Household Energy Storage Battery

    * M6 20 cross outer Cross outer hexagon double hexagon double cushioned screws, M6× 20, cushioned screws * M4 10 cross outer Cross outer hexagon double hexagon double cushioned screws, M4× 10 cushioned screws * M6 12 cross outer Cross outer hexagon double hexagon double cushioned screws, M6* 12 cushioned screws...
  • Page 38 Integrated PDU-GU-Y (integrated) distribution box distribution box: 650*150*270mm (PDU-GU-Y) PDU-GU- F (split) Split distribution distribution box: 650*150*270mm box (PDU-GU-F) Earthing angle iron 97*70*30mm Case connecting 60*25*2mm part Wall angle iron 65*60*30mm Adjustable foot M12*82mm support Cross outer Cross outer hexagon double hexagon cushioned screws, M4*10mm Flange nut...

  • Page 39: Installation

    5 Installation 5.1 Installation preparation 5.1.1 Installation environment requirements  The ambient temperature should be between -25℃ and +60℃, and the relative humidity should be between 0% and 90% (no condensation).  The inverter may be installed indoor or outdoor, provided that the installation location is dry, dustless, well-ventilated, and kept away from direct sunlight or heating equipment.
  • Page 40 Do not install the inverter in a location which may be exposed to moisture, floor and lightning stroke. Self-cooling heat dissipation mode is used for Install the inverter on solid ground. The wall is the inverter. In order to ensure a good heat vertical to the ground.

  • Page 41: Requirements Of Installation Tools

    5.1.2 Requirements of installation tools Type Tools and description Installation Safety protection tool 5.1.3 Selection of installation location The installation location should be flat and solid and can support the weight of the whole system. Vertically install and avoid tilting forward or backward: ~ 38 ~...

  • Page 42: System Installation

    The space around the power supply should meet the following requirement as a minimum Above Front Back Left Right (connection) 800mm 1000mm 60mm 300mm 600mm 5.2 System installation 5.2.1 Handling of inverter and battery Caution • During transport, handling, installation and other operations, it is necessary to comply with national and local laws and regulations and relevant standards of the installation site.

  • Page 43: System Installation

    5.2.2 System installation Attention During installation, ensure that the installation of devices in the system does not affect the disconnection of the DC switch and the AC circuit breaker. • During drilling holes, ensure that the holes are drilled away from water pipes and cables in the wall, which can avoid dangers.

  • Page 44: Battery Installation

    5.2.2.2 Battery installation Tools: Ruler, screwdriver, screws (M4* 10mm) and case connector 1. Cell installation Step 1: Step 2: Align and gently pull the cell with and into the Check whether the battery fits closely with the slot on the abutment. abutment.
  • Page 45 Step 1: stack the cells Align and gently place the second cell with and onto the slot of the first cell and check that two cells fit closely Step 2: install case connecting part Adjust the position of the connecting part between the cells, and tighten the screws separately to fix the connecting part.
  • Page 46 5.2.2.3 Installation of distribution box 1. Installation of single distribution box Step 1: stack the distribution box Step 2: install case connecting part Align and gently place the distribution box with Fix the cell with the distribution box connecting and onto the slot and check that they fit closely. part according to the step of installing the case connecting part provided in Section 5.2.2.2 ~ 43 ~...
  • Page 47 Note: the same method is used to install the integrated and split distribution boxes 2. Connect the distribution box for the battery packs. To connect more than 2 battery packs, connect the distribution boxes according to the following method: Tools: Screwdriver and screws (M4* 10mm) If required, connect more than 2 distribution boxes by the following steps: (1) Connect two power cables of the ports BAT+ and BAT- of the main distribution box with two two corresponding power cables of the ports BAT+ and BAT- of the secondary distribution box 1;...
  • Page 48 Master Slave1 Slave2 Note: Red represents BAT+, black represents BAT-, and blue represents parallel communication cable in the diagram. Port connection diagram of distribution boxes: Note: When multiple battery packs are stacked, respectively connect 120Ω terminal resistance with the port PARALLEL IN of the first distribution box and the port PARALLEL OUT of the latest distribution box.
  • Page 49 1. Installation of single power supply Drill the holes (about 50mm deep) on the wall with the impact drill according to the location dimensions shown in the drawing. Hammer the expansion bolt and the bushing into the bottom hole and install the wall-mounted plate by the nuts and the flat washers. Install the hanging plate onto the power supply by M6X20 screws, stack the power supply on the distribution box by aligning with the hanging plate, connect the power supply with the distribution box by the angle iron, and fix the angle iron by M4X10 screws to complete the stacking of the battery.
  • Page 50 2. Installation of multiple power supplies EAHI10 - 20KTH-S series inverters have parallel connection function, and a system can connect up to 6 inverters. In the system, set one inverter as a “main inverter”for the energy management and scheduling control of other inverters. Connect all secondary inverters in parallel, and connect them with the “main inverter”...
  • Page 51 System connection diagram: Inverter Inverter Inverter (master) (slave 1) (slave 2) Port connection diagram: ~ 48 ~...
  • Page 52 Net structure: ~ 49 ~...

  • Page 53: Electrical Connection

    6 Electrical connection Attention 1. Before the installation and use of the inverter, a cable (4 ~ 6 mm ) with wire lugs must be used for special protective earthing. 2. The BACK- UP output end of the inverter has the following carrying capability: ①...
  • Page 54 Component Note PV string The PV string is made by connecting multiple PV modules in series Inverter Support EAHI10KTH- S, EAHI15KTH- S and EAHI20KTH- S inverters ON-GRID Load The specifications should be determined according to the actual load. circuit breaker You are recommended to prepare the AC switches by yourselves.

  • Page 55: Connection Of Ground Wire

    Recommended cables: Attention When external cables are selected, it is required to consider current size, system overload capacity, and ambient temperature. The following table provides the recommendation to select the cables. Engineers should select the cables according to the local standards and the following table. The cable length is generally 2-10m, and if the cable is too long, it is possible to cause the deviation of the voltage from the rated value, in this case, the cable section size should be increased correspondingly.

  • Page 56: Pv Side Connection

    Fix the ground cable terminal to the heat sink on the Check whether the ground cable is properly connected to ensure safe installation and right side of the power supply by the ground cable use. screw (φ6mm). Properly ground other end of the ground cable with a ground impedance of no more than 0.1Ω.
  • Page 57 Polarity of input terminal of external input cable Positive (+) input terminal and terminal Negative (-) input terminal and terminal housing housing Wiring of DC side Strip the about 8mm cable sheath of the DC cable to expose the copper conductor. Insert the copper conductor into the metal core of the connector and tighten it with the crimping pliers (as shown in the following figure) Loosen the terminal cover and pass the cable through the terminal cover.

  • Page 58: Ac Side Connection

    6.3 AC side connection Warning  Before connecting to the grid, install an AC circuit breaker between the inverter and the grid as well as the BACK- UP.  During wiring, the AC cable fully matches with the ports “L1”, “L2”, “L3”, “N” and “PE”of the AC terminal.
  • Page 59 Strip 70mm cable sheath and 15mm insulation Measure the distance between the distribution layer of the cable by the wire stripper. box or load and the inverter by the measuring tape and select the ground cable with appropriate length. Use the terminal crimping pliers to press the pre-insulated end of the tube to the cable. Terminal installation procedure Install the cables to connectors (confirm the Crimp the cables, and tighten the screws at...
  • Page 60 Push the clamping claw into the securing ring Place the cable ends in the housing. and screw the cable fixing nut into the housing through the torque of 4.0+/-0.5N·m. Connect the equipment with the cable while you can hear the ticking. Insert the terminal into the load interface, rotate the terminal head to securely connect with the equipment, and check the connection.

  • Page 61: Gen Side Connection

    Removal procedure: Turn the nut in reverse. Remove the cable end from the equipment. Press the unlocking position with a removal tool, pull the cable and in the arrow direction to complete the removal. 6.3.2 GEN side connection For details about how to install and remove GEN connectors, see 6.3.1 Installing and Removing Procedure for LOAD Connectors.

  • Page 62: Grid Side Connection

    6.3.3 Grid side connection Tools: Hexagonal screwdriver (φ2mm), Tube type pre-insulated ends (5 PCS), wire stripper, tape and cables (L1, L2, L3, N and PE) Make sure to turn off the grid circuit breaker, measure the distance between the grid and the Insert the terminal into the Grid interface, rotate distribution box by the measuring tape and the terminal head to securely connect with the...
  • Page 63 Hybrid Inverter Main panel BACK BACK-UP Battery loads Do not wire in this p ositio n if N and PE cables are co nnected togeth er Smart Meter meter Utility ON-GRID grid strin g N-BAR E-N Link E-BAR L1 L2 L3 ON-GRID loads Note...
  • Page 64 1 The inverter relay will automatically connect the N wire and PE cable when the inverter is BACK-UP mode. 2.The inverter relay will automatically disconnect the N wire and PE cable when the inverter is in ON-GRID mode. Hybrid Inverter Main panel BACK BACK-UP...

  • Page 65: Connection Of Kilowatt-Hour Meter

    6.4 Connection of kilowatt-hour meter Tools: Screwdriver (small cross), network cable, network cable pliers, wire strippers, tape measure, kilowatt-hour meter sliding rail, marker, hammer, electric drill and expansion screw. Caution Before connecting the smart kilowatt-hour meter to the CT, ensure that the AC cable is completely disconnected from the AC power supply.
  • Page 66 Insert the network cable into the connector components according to the figure; Insert the registered jack into the RJ45 connector until you hear a very clear " click"; Press the fastener slightly to insert the registered jack into the RJ45 connector and contact the RJ45 connector.

  • Page 67: Connection Mode Of Kilowatt-Hour Meter (Optional)

    Connect the registered jack in the CT to the CT/METER port on the side of the housing Description of CT/METER pins EXT- EXT- EXT- EXT- EXT- EXT- Definition CT1- CT1- CT1- CT1- CT1- CT1- RS485_METER_A RS485_METER_B Attention Please note that the CT orientation must be correct, otherwise the system will not work properly. 6.4.2 Connection mode of kilowatt-hour meter (optional) 1.
  • Page 68 Measure the distance between the equipment and the kilowatt-hour meter by the measuring tape and select the network cable with appropriate length. Insert the network cable 7# (brown and Strip 10mm insulation layer from one end of the white)into the third port of the kilowatt-hour network cables 7# (brown and white) and 8# meter, and the network cable 8# (brown) into the (brown)
  • Page 69 Insert the CT terminal into the adapter ports 1-3, Pass the current wire through the current the phase A CT plug into the 1a port, the phase transformer and fix it with a cable tie. B CT plug into the 1b port, and the phase C CT plug into the 1c port.
  • Page 70 As shown in the figure, strip the cable sheath of the network cable by the cable stripper, pass the network cable through the components in the sequence shown in the figure, and crimp the cable into the RJ45 registered jack according to the sequence 1-8 and the cable colors. Strip 10mm insulation layer from another end of the network cables 7# (brown and white) and 8# (brown).
  • Page 71 Press “▲” to adjust the number size, press “▼” to switch the digits, and set the PSD password to 3366; Press the “SET” button to access the parameter setting interface. Modbus address setting: 003 On the parameters interface, press “▲” and “▼” to switch to“ ”;...

  • Page 72: Communication Side Connection

    6.5 Communication side connection The inverter is equipped with COM, USB, DRM, PARALLEL_IN and PARALLEL_OUT interfaces, as well as a WIFI/GPRS remote monitoring communication interface to upload the data to the cloud for data monitoring. The USB interface is used to upgrade software on a USB flash disk. 6.5.1 WIFI remote monitoring module Fig.

  • Page 73: Drm Communication

    6.5.2 DRM communication Fig. 6.5.2.1 Schematic diagram of LAN interface connection DRM: Use according to safety regulations (Australia only): Definition DRM1/5 DRM2/6 DRM4/8 REF_GEN/0 COM_LOAD/0 DRM3/7 The inverters are equipped with the interfaces used for connection with the demand response enabled device (DRED).
  • Page 74 In Australia and New Zealand, the inverters support the demand response mode specified in the AS/NZS 4777 standard, and the wiring diagram of the inverters is shown below: Mode Short connected inverter External DRED operation DRM0 R & C Disable S1 andS5 DRM1 D1/5&C Disable S1...

  • Page 75: Communication For Parallel Operation

    6.5.3 Communication for parallel operation Fig. 6.5.3.1 Schematic diagram of LAN interface connection Note: see Section 6.4.1 “Wiring Procedure of RJ45 Connector” for the specific wiring procedure. PARALLEL IN and PARALLEL OUT communication interfaces are used for communication during the parallel operation.
  • Page 76 Definition Description COM dry contact (reserved) COM_ON COM_GEN_NC GEN dry contact (reserved) COM_GEN RS485_GRRS_A2 RS485 and upper computer communication RS485_GRRS_B2 RS485_EV_A RS485 charging station communication RS485_EV_B BAT_ON/OFF_1 Battery starting signal BAT_ON/OFF_2 EXT-CT2_BN External CT communication (Phase B) EXT-CT2_BP EXT-CT2_CP External CT communication (Phase C) EXT-CT2_CN EXT-CT2_AN External CT communication (Phase A)

  • Page 77: Display Panel

    7 Display panel LED light bars are used for the display panel. 7.1 Description of signal indicator lamp Icon Name Function WIFI WIFI module successfully connected: normally On in green. connection Bluetooth Bluetooth successfully connected: normally On in green. connection Upper Upper computer successfully connected: normally On in computer...

  • Page 78: Definition Of Led Status Display

    7.2 Definition of LED status display LED display description: 1. The SOC of the battery is displayed by 33 LED indicator bars 2. When the SOC is less than 3% (including 0%), 1 LED indicator bar is displayed all the time; 3.
  • Page 79 Alarm signal Level Definition Buzzer Lamplight Picture recovery conditions The LED Default: the indicator buzzer lamp is red Emergency Remove the fault keeps ringing normally The LED Important Quiet light flashes Remove the fault in red Minor Quiet The LED indicator lamp is yellow and...
  • Page 80 The LED indicator lamp is blue Go out after Upgrading Quiet upgrading normally Priority: Upgrade > Fault/Alarm > SOC Display. If the alarm indicator works, the SOC is not displayed. If the alarm indicator is off, the SOC is displayed. The indicatorindicating the upgrade status is continuously on during the upgrade, and goes out after the upgrade is completed, and the current alarm and SOC are displayed according to the display logic In case of multiple alarms, the sequence should be the upgrade status >...

  • Page 81: Commissioning

    8 Commissioning 8.1 Inspection before operation Please check the following items before the operation. 1. The inverter is securely fixed. 2. The PV+/PV- cable is firmly connected with correct polarity, and the voltage is within the required range. 3. The BAT+/BAT- cable is firmly connected with correct polarity, and the voltage is within the required range.

  • Page 82: Use Of App For Eahi20Kth-S

    9 Use of APP for EAHI20KTH-S 9.1 Download and Installation of APP Scan the following QR code with your mobile: Android 9.2 APP Registration and powering on inverter ~ 79 ~...
  • Page 83 If the above items meet the requirements, power on the inverter for the first time according to the following procedure. ~ 80 ~...
  • Page 84 ~ 81 ~...
  • Page 85 Note: If the inverter can be automatically turned on in case of the operation as described in 8.2, it will not be required to start the inverter through connecting APP/ with the upper computer. ~ 82 ~...

  • Page 86: System Maintenance

    10 System maintenance Attention • Ensure that the inverter is powered off. • During operating the inverter, please wear personal protective equipment. 10.1 Routine maintenance of inverter Maintenance Maintenance method Maintenance period item System Check the cooling fin and the air inlet/outlet for Once/half a year - cleaning foreign matter and dust.

  • Page 87: Battery Maintenance

    Step 1: Send a shutdown instruction through mobile APP or cloud platform or host computer Step 2: disconnect the ON- GRID AC circuit breaker of the inverter Step 3: disconnect the BACK- UP AC circuit breaker of the inverter Step 4: disconnect the AC switch between the inverter and the battery Step 5: disconnect the DC switch of the inverter 10.4 Battery maintenance Warning...
  • Page 88 4. Storage environment requirements: Ambient temperature: -10 ℃ ~55 ℃ , recommended storage temperature: 20 ℃ ~30 ℃ ; relative humidity: 5%RH-80%RH Dry, ventilated and clean. Avoid contacting with corrosive organic solvents, gases and other substances. Avoid exposing to direct sunlight Maintain less than 2m away from heat sources 5.

  • Page 89: Troubleshooting

    11 Troubleshooting 11.1 Fault level list Fault type Fault name Alarm level Failure in fast grid check Prompt alarm Over-voltage of Phase A\B\C grid section 1 Prompt alarm Under-voltage of Phase A\B\C grid section 1 Prompt alarm Over-frequency of Phase A\B\C grid section 1 Prompt alarm Under-voltage of Phase A\B\C grid section 1 Prompt alarm...
  • Page 90 Inverter self-check failed Important alarm Over-current of N-line balance bridge arm hardware Prompt alarm Rapid over-current of N-line balance bridge arm Prompt alarm Over-current of N-line balance bridge arm Prompt alarm Fast BUS+ over-voltage Important alarm Fast BUS- over-voltage Important alarm BUS+over-voltage Important alarm BUS- over-voltage...
  • Page 91 Fan 5# fault Prompt alarm Reversed kilowatt-hour meter connection Important alarm Kilowatt-hour meter communication fault Important alarm Unmatched software and hardware versions Important alarm Current country code unsupported Important alarm SPIFlash fault Important alarm Current model unsupported Important alarm Not activated for Australia Important alarm Repeated Parallel ID Important alarm...
  • Page 92 DC over-voltage Important alarm DC under-voltage Important alarm Battery over-current Important alarm Pre-charging overtime Important alarm BMS1 failure Important alarm BMS2 failure Important alarm BMS3 failure Important alarm BMS4 failure Important alarm BMS5 failure Important alarm BMS6 failure Important alarm BMS7 failure Important alarm BMS8 failure...
  • Page 93 Output short circuit Important alarm Low-temperature shutdown alarm Prompt alarm Buck_Boost heat sink over-temperature Important alarm LLC high-pressure side heat sink over-temperature Important alarm LLC low-pressure side heat sink over-temperature Important alarm Wave-by-wave current limiting fault Important alarm Output over-voltage protection Important alarm LLC high-pressure side heat sink over-voltage Important alarm...

  • Page 94: Troubleshooting

    11.2 Troubleshooting The users can troubleshoot and take corresponding measures according to the failure information of the inverter. Fault information Possible causes Solution Phase A\B\C grid 1. Check the grid voltage or frequency, if the RMS over-voltage grid voltage or frequency is out of the Phase A\B\C grid allowable range of the inverter protection RMS under-voltage...
  • Page 95 Output RMS over-voltage The protection is 1. Check whether the external load and the Output RMS under-voltage triggered by the grid are out of the range of inverter Output RMS over-current instantaneous abnormal specification. After the fault is removed, the Output over-frequency output of the inverter inverter will be automatically restored to...
  • Page 96 2. Check that the inverter is installed in well- ventilated environment; 3. Check whether the inverter is exposed to direct sunlight, and if yes, install a sunshade. 4, If the fault still cannot be removed after the first three steps, please contact your distributor or after-sales service center.
  • Page 97 The relay can not be If the alarm repeats, contact the distributor or Generator relay fault closed or disconnected after-sales service center. properly. 1. Restart the inverter; Monitor SCI communication No monitoring data 2. If the fault repeats, contact your distributor fault received or after-sales service center.
  • Page 98 1. Check whether the inverter is reliably grounded; The PV string is short 2. Check whether the positive and negative circuited with the poles of the PV panel are short connected Insulation impedance to protective ground, or the with the ground cable; ground fault installation environment 3.

  • Page 99: Technical Data

    12 Technical data 12.1 System specification Model EAHI10KTHSeries EAHI15KTHSeries EAHI20KTH Series System composition Battery system model EHBS-P5-TH Battery type IFpP（li-ion） Capacity of single module 5222.4Wh Module quantity of single battery pack system Capacity of single battery 5-20 kWh pack system Maximum quantity of expansible battery packs in battery system...

  • Page 100: Inverter Specification

    Inverter specification Model EAHI10KTH-S EAHI15KTH-S EAHI20KTH-S PV input parameter Maximum input power 20kW 30kW 30kW Maximum input voltage 1000Vdc Rated input voltage 650Vdc Starting voltage 180Vdc Minimum operating voltage 160Vdc MPPT voltage range 160~950Vdc MPPT voltage range at full power 625-800V Maximum input current per MPPT 16A / 16A...
  • Page 101 AC output parameter(backup load) Rated output power 10kW 15kW 20kW Maximum apparent power 10kVA 15kVA 20kVA Rated output voltage 3/N/PE,380Vac / 400Vac Rated output frequency 50Hz / 60Hz Rated output current 15.2A / 14.4A 22.8 / 21.7A 30.4A / 28.9A Maximum output current 15.2A 22.8A...

  • Page 102: Battery Specification

    Battery specification Model EHBS-P5-TH System composition Battery type IFpP（li-ion） Module capacity 5222.4Wh System capacity 5-20kWh, expansible Module quantity of single battery pack system Maximum quantity of expansible battery packs in battery system Rated voltage 750Vdc Voltage range 600~1000Vdc Maximum charge/discharge 3.4A / 5.5A current Communication port...

  • Page 103: Nameplate

    Specification of battery distribution box Model PDU-GU-Y (integrated) PDU-GU- F (split) Parameter Battery interface Maximum current Voltage range 550~1000Vdc Display Dimensions (W*H*D) 650*150*270mm Packing size (W*H*D) 765*370*385mm(including base) Net weight 12.5kg Gross Weight 23kg IP protection grade IP66 Warranty period 5 years Other Dimensions of fixing base...
  • Page 104 Fig. 12.2.1 Nameplate information (which may be changed without prior notice, and subject to the actual product) ~ 101 ~...

  • Page 105: Eahi10-20Kth Series Packaging And Disposal

    13 EAHI10-20KTH Series packaging and disposal 13.1 EAHI10~ 20KTH Series packaging  When the equipment packaging permits, the inverter and the battery system equipment can be packed in the original material packaging;  If the original packaging is not available, you can also pack the product by the packaging that conforms to the product packaging requirement and can pack the entire product by a easy carrying method.

  • Page 106: Appendix

    14 Appendix 14.1 Terminology Name Description ANTI-TIED It means that the inverter is not allowed to supply the power to the grid It is opposite to ANTI-TIED, in which the inverter is allowed to supply the power GRID-TIED to the grid It means that the inverter is allowed to receive the power from the grid to AC CHA.

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