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Fox ESS H3 Smart Series User Manual

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User Manual
H3/AC3 Smart & H3-M SERIES
In order to prevent improper operation before use, please carefully read this manual.

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  • Page 1 User Manual H3/AC3 Smart & H3-M SERIES In order to prevent improper operation before use, please carefully read this manual.

  • Page 2: Table Of Contents

    Table of Contents 1. Notes on This Manual .......................... 1 1.1 Scope of Validity .......................... 1 1.2 Target Group ..........................1 1.3 Symbols Used ..........................1 2. Safety ..............................3 2.1 Appropriate Usage ........................3 2.2 PE Connection and Leakage Current ..................4 3.
  • Page 3 6.13 System Connection Diagrams ....................42 6.14 Inverter Start-Up ........................43 6.15 Inverter Switch Off ........................43 7. Main function implementation ......................44 7.1 Drm wiring ..........................44 7.2 RCR wiring ..........................44 7.3 SG ready wiring and setting .......................47 7.4 Reactive Function Setting ......................49 7.5 Implementation of dual-channel EPS function ................53 8.

  • Page 4: Notes On This Manual

    Notes on This Manual 1.1 Scope of Validity This manual describes the assembly, installation, commissioning, maintenance and troubleshooting of the following model (s) of products: H3-5.0-Smart H3-6.0-Smart H3-8.0-Smart H3-9.9-Smart H3-10.0-Smart H3-12.0-Smart H3-15.0-Smart AC3-5.0-Smart AC3-6.0-Smart AC3-8.0-Smart AC3-9.9-Smart AC3-10.0-Smart AC3-12.0-Smart AC3-15.0-Smart H3-5.0-M H3-6.0-M H3-8.0-M H3-10.0-M...
  • Page 5 Danger! The PV string will generate lethal high voltage when exposed to sunlight. Operators must wear proper personal protective equipment during electrical connections. Must ensure that cables are voltage-free with a measuring instrument before touching Dc cables. Respect all safety instructions listed in relevant documents about PVstrings DANGER Danger! Before electrical connections, please make sure that the inverter switch and all switches connected to...

  • Page 6: Safety

    Warning! Before connecting the PV array to the inverter, ensure that the impedances between the positive terminals of the PV string and earth, and between the negative terminals of the PV string and earth are larger than 1 M Ohm. This section explains the symbols shown on the inverter and on the type label: Symbols Explanation...

  • Page 7: Pe Connection And Leakage Current

    electrician and shall comply with local wiring rules and regulations. Before installation, check the unit to ensure it is free of any transport or handling damage, which could affect insulation integrity or safety clearances. Choose the installation location carefully and adhere to specified cooling requirements. Unauthorized removal of necessary protections, improper use, incorrect installation and operation may lead to serious safety and shock hazards or equipment damage.

  • Page 8: Introduction

    RCMU in the inverter can detect leakage on the DC side. There are 2 trip thresholds for the RCMU as required by the DIN VDE 0126-1-1 standard. A low threshold is used to protect against rapid changes in leakage typical of direct contact by people. A higher threshold is used for slowly rising leakage currents, to limit the current in grounding conductors for the safety.
  • Page 9 This diagram is an example for an application in which neutral is separated from the PE in the distribution box. For countries such as China, Germany, the Czech Republic, Italy, etc, please follow local wiring regulations.
  • Page 10 • Work modes: Work modes Description Priority: load>battery>grid Self-use The energy produced by the PV system is used to optimize self-consumption. The (with PV Power) excess energy is used to charge the batteries, then exported to gird. When no PV is supplied, the battery will discharge for local loads first. Battery will Self-use charge when excess generation from other generation sources is detected.

  • Page 11: Dimensions

    3.2 Dimensions 3.3 Terminals of inverter Item Description Item Description DC Switch Meter COMM/DONGLE PV3 (For H3-Smart Only) Antenna EPS/GRID Grounding Screw Note: Only authorized personnel are permitted to set the connection.

  • Page 12: Technical Data

    4. Technical Data 4.1 PV Input (For H3-Smart Only) H3-5.0- H3-6.0- H3-8.0- H3-9.9- H3-10.0- H3-12.0- H3-15.0- Model Smart Smart Smart Smart Smart Smart Smart 22500 22500 Max. DC Input Power [W] 11000 13200 17600 18000 18000 Max. DC voltage [V] 1000 Nominal DC operating voltage [V] Max.

  • Page 13: Battery

    4.2 Battery H3-5.0- H3-6.0- H3-8.0- H3-10.0- H3-12.0- H3-15.0- H3-9.9- Smart Smart Smart Smart Smart Smart Smart Model AC3-5.0- AC3-6.0- AC3-8.0- AC3-10.0- AC3-12.0- AC3-15.0- AC3-9.9- Smart Smart Smart Smart Smart Smart Smart H3-5.0-M H3-6.0-M H3-8.0-M H3-10.0-M H3-12.0-M H3-15.0-M Lithium-Ion battery (LFP) Battery Type 100-800 Battery voltage [V]...

  • Page 14: Eps Output

    4.4 EPS Output H3-5.0- H3-6.0- H3-8.0- H3-10.0- H3-12.0- H3-15.0- H3-9.9- Smart Smart Smart Smart Smart Smart Smart Model AC3-5.0- AC3-6.0- AC3-8.0- AC3-10.0- AC3-12.0- AC3-15.0- AC3-9.9- Smart Smart Smart Smart Smart Smart Smart H3-5.0-M H3-6.0-M H3-8.0-M H3-10.0-M H3-12.0-M H3-15.0-M EPS OUTPUT (WITH BATTERY) 5000 6000 8000...

  • Page 15: General Data

    4.6 General Data DIMENSION AND WEIGHT Dimensions (W*H*D) [mm] 600*450*226 Net Weight (5-10KW) [kg] 33.5 Cooling Natural FAN cooling Inverter topology Non-isolated Ethernet, EMS(RS 485), Meter, WiLAN(WiFi+LAN+Bluetooth), 4G(Optional), DRM, Ripple Communication interface Control, USB, BMS(CAN), SG Ready LCD display Backlight 16*4 character ENVIRONMENT LIMIT Installation wall-mounted...

  • Page 16: Installation

    5. Installation 5.1 Check for Physical Damage Make sure the inverter is intact during transportation. If there is any visible damage, such as cracks, please contact your dealer immediately. 5.2 Packing List Open the package and take out the product, please check the accessories first. The packing list shown as below.

  • Page 17: Mounting

    5.3 Mounting • Installation Precaution Make sure the installation site meets the following conditions: Not in direct sunlight. Not in areas where highly flammable materials are stored. Not in potential explosive areas. Not in the cool air directly. Not near the television antenna or antenna cable. Not higher than altitude of about 2000m above sea level.
  • Page 18 • Mounting Steps Tools required for installation: Manual wrench; Electric drill (drill bit set 8mm); Crimping pliers; Stripping pliers; Screwdriver. Installation angle requirements: ● Do not tilt the energy storage forward, horizontally, upside down, backward and sideways. Installation space requirements: When installing energy storage, ensure that there are no other equipment and flammable and explosive materials around, and reserve enough space to ensure the installation heat dissipation and safety isolation requirements.
  • Page 19 Before drilling holes, please ensure the distance between the machine and nearby objects. Drill holes with electric drill, make sure the holes are at least 50mm deep and 8mm wide, and then tighten the expansion tubes. CAUTION Please pay attention to safety when using the tools. Unsafe use of the drilling tools may cause damage to the body.
  • Page 20 Insert the expansion tubes into the holes and tighten them. Install the bracket with the expansion screws. Match the inverter with wall bracket Mount the inverter to the bracket. Secure the inverter with the M5 screw and washer.

  • Page 21: Electrical Connection

    6. Electrical Connection 6.1 circuit overview system overview...

  • Page 22: Pv Connection (For Hybrid Only)

    6.2 PV Connection (For H3-M/H3-Smart Only) Step 1: PV String Connection NOTE Note! Please choose a suitable external DC switch if the inverter does not have a built-in DC switch. WARNING Warning! PV module voltage is very high and within a dangerous voltage range, please comply with the electric safety rules when connecting.
  • Page 23 Step 2: PV Wiring • Turn off the DC switch. • Choose 2.5mm wire to connect the PV module. • Trim 6mm of insulation from the wire end. • Separate the DC connector (PV) as below. NOTICE When making PV terminals, please make sure that the copper cores of PV positive and PV negative terminals and the copper cores on the inverter can be inserted, and use a multimeter to measure whether the positive and negative terminals are correct, otherwise the machine may not work normally or individual strings may not work.

  • Page 24: Battery Connection

    • Unlock the DC connector DANGER Before separating the DC connector, make sure that there is no current on the DC connector. You can measure it with current clamp or disconnect the DC switch, otherwise serious safety accidents may occur. Make sure that the power cable connected to the inverter is connected vertically and that the vertical length is greater than 30 cm.

  • Page 25: Grid Connection

    • Insert pin contact through the cable nut to assemble into back of the male or female plug. When you feel or hear a “click” the pin contact assembly is seated correctly. • Unlock the DC connector DANGER Before disconnecting the DC connector, make sure that there is no current on the DC connector. You can use the current clamp to measure or disconnect the battery switch, otherwise serious safety accidents may occur.

  • Page 26: Earth Connection

    WARNING WARNING! A micro-breaker for max output overcurrent protection device shall be installed between inverter and grid, and the current of the protection device is referred to the table above, any load SHOULD NOT be connected with the inverter directly. Step 2: Grid Wiring •...

  • Page 27: Installation Instructions

    Use the crimping pliers to press the ground cable into the ground terminal, screw the ground screw with screwdriver as shown below: 6.6 Installation Instructions 1) Dimension of stripping line Dimension of stripping line outside machine...
  • Page 28 2) Wiring Precautions 3) Seal accessory option A. Ø18: The recommended outer diameter of the cable is 17.5-18.5mm. B. Ø21: The recommended outer diameter of the cable is 19-21mm. C. Ø6: When the four wire system is used, the special hole for the ground wire is recommended to be applicable to the outer diameter of the cable.

  • Page 29: Installation Steps For 5-Core Wire

    6.7 Installation steps for 5-core wire Thread the stripped wire into the lock nut and the main body in turn. (the flexible wire needs to be riveted to the insulated terminal) First, insert the EPS end cable into the EPS end of the rubber core. After the cable is in place through the perspective hole, tighten the screw using an S2.5 hexagon wrench with a torque of 2.5±0.1N·m.
  • Page 30 Insert the main body into the rubber core and hear the "click" sound. Seal plugin to main body. Tighten the nut with an open-ended wrench. (torque 10.0±0.1N·m, Complete the installation)
  • Page 31 Inserted Open the latch. Align the female end with the male end in the anti-stay position. After the male and female insert the card point into the tracks lot, press the lock. Tighten the screws with the S2.5 hexagon wrench with a torque of 2.5±0.1Nm. Installation completed.

  • Page 32: Rj45 Connection

    6.8 RJ45 connection The machine has three RJ45 terminals, which are meter, Ethernet, and RCR functions The definition of meter port pin is as follows: The definition of Ethernet port pin is as follows: The definition of DRM port pin is as follows: RJ45 Wiring Installation Procedure Insert the network cable into the wire-locking nut, sealing plug and mainbody in turn.
  • Page 33 Tighten the connector mainbody by the open-ended wrench into the RJ45 panel mount connector with a torque 1.2±0.2N·m. Insert the sealing plug into the main body of RJ45 cable end connector. Tighten the connector's nut by the open-ended wrench with a torque 1.2±0.2N·m.

  • Page 34: Antenna Connection

    6.9 Antenna Connection Tighten the Antenna's nut by the open-ended wrench with a torque 1.2±0.3N·m. 6.10 COM connection Introduction to COM port: The COM port mainly includes EMS485, Meter485, WIFI485, Estop port, two relay output ports, two parallel ports and a toggle switch, +12V and corresponding relay output signals. The ripple control function is described below.
  • Page 35 DY OUT: The machine has two DY OUT interfaces, with two internal contacts of relays hat can drive loads of 230VAC1A/50VDC0. 5A, and can be used for powering on and starting heat pumps. PARA port RJ45: Used for parallel communication, it is necessary to set the DIP switch to the ON state during parallel operation.
  • Page 36 And use a screwdriver to crimp the wire, screwing torque 1.2+/-0.1N·m. Arrange the core line, the rubber core area must not appear to ride the line. The rubber core is loaded into the main body and accompanied by a"click"sound. Install the plug into the main body and plug the holes without wires with a plug. Lock wire nut screwed onto the body, torque 2.5+/-0.1N-m, then complete installation.

  • Page 37: Electrical Connection

    6.11 Electrical Connection Communication Device Installation (Optional) Hybrid series inverters are available with multiple communication options such as WiFi-, GPRS-, LAN- or 4G-Dongle, RS485 and Smart meter with an external device. Operating information like output voltage, current, frequency, fault information, etc., can be monitored locally or remotely via these interfaces.
  • Page 38 Configuration： Note: The module is powered on and started, please wait for one minute to start the WiFi Config. Web Configuration. Step 1: Connect your mobile device with Smart WiFi. The SSID of the Smart WiFi is ‘ W-xxxxxxx ’ and the password is ‘mtmt2020’.
  • Page 39 RS485 RS485 is a standard communication interface which can transmit the real time data from inverter to PC or other monitoring devices. Meter The inverter has integrated export limitation functionality. To use this function, a power meter must be installed. For Meter installation, please install it on the grid side. Note: •...

  • Page 40: Meter Connection

    Export control setting: Settings On-Grid Parm Export Control xxxxxW The electricity meter is connected as follows: Meter connection： Meter Connection Diagram...
  • Page 41 CT-Meter Type Step 1: Insert L1/L2/L3/N wires, CT and RS485A/B cable into the meter. Please refer to the meter wiring diagram on side of meter itself. During CT use, the direction of the CT arrow faces the inverter. Step2: Connect RS485A to pin 2/8 of the inverter METER/RS485 port. Connect RS 485B to pin 1/7 of the inverter METER/RS485 port.
  • Page 42 Step 3: The transformation ratio setting of a CT meter needs to be consistent with the transformation ratio of a CT meter. The transformation ratio setting method for a CT meter is as follows: The address of the second meter is 2. Please ensure that the address is 2, otherwise the communication of the first meter will be affected, and the output and monitoring data of the inverter will be affected.
  • Page 43 • • BMS is used to communicate with the battery for data exchange, please use the network cable configured for the battery to communicate the communication distance should not exceed 10m. - Insert one side of CAT 7 cable into the first inverter's CAN port and the other side into the next inverter’s CAN port.
  • Page 44 Introduction to the function of unbalanced load: If the load of each phase in the household load is different, and the power of each phase output by the inverter is the same, there will be one phase output and one phase input. In order to avoid this situation, the unbalanced load can be turned on.

  • Page 45: Eps Connection (Non-Parallel State)

    6.12 EPS Connection (Non-parallel State) Common loads description Under EPS mode, if need to connect the inductive load on EPS port, please ensure that the instantaneous power of the load at startup is lower than the maximum power of the EPS mode. Below table shows some conventional and reasonable loads for you reference.

  • Page 46: Inverter Start-Up

    6.14 Inverter Start-Up Please refer to the following steps to start up the inverter. Ensure the inverter fixed well. Make sure all the DC wirings and AC wirings are completed. Make sure the meter is connected well. Make sure the battery is connected well. Make sure the external EPS contactor is connected well (if needed).

  • Page 47: Main Function Implementation

    7. Main function implementation 7.1 Drm wiring DRM0 setting Settings Feature Parm DRM0 Enable/Disable DRM supports several demand response modes by configuring control signals as below. Asserted by Mode Requirement shorting pins DRM0 DRM0 Operate the disconnecting device, under Australian safety regulations. DRM1 DRM1 DRM0...
  • Page 48 On the web page, first determine if the safety regulations are correct. The settings for ripplr control are as follows on the web page. Firstly make sure that the ripplecontrolEnable switch is in the Enable state, which indicaties that the ripple control function has been turned on.
  • Page 49 When realizing this through hardware, you need to change the setting in the setup to And external hardware short-circuits DRM0 and +3.3V. The ripple control function is described below: Switching state Output active power (%Pn) No contact closed 100% Several contacts closed 100% Contact DRM1 to +3.3V Contact DRM2 to +3.3V...

  • Page 50: Sg Ready Wiring And Setting

    7.3 SG ready wiring and setting • SG Ready The Smart Grid Ready is controlled by the dry contact output 1 of the inverter. Relay-1 Label DRY_RLY1- DRY_RLY1+ Mode 1 Mode 2 Note：0-Relay open， 1-Relay closed Mode 1-Normal operation (0): The heat pump runs in energy-efficient normal mode.
  • Page 51 Configure SG ready power management settings * SgReadyFunction: Disable/Enable sgready function. * RestartTime: Interval between two launches of sgready. * SgReadyStartPower: when the feed-in power exceeded the set value, the heat pump starts operation. * SgReadyStopPower: When the feed-in power is less than the set value, the heat pump stops operation.

  • Page 52: Reactive Function Setting

    7.4 Reactive Function Setting Step1: Login fox Cloud...
  • Page 53 Step2: Enter SN of Inverter Step3: Click Here Step4: Click Safety-Reactive, Select the Reactive Power Mode Enable button.
  • Page 54 1. Fixed PF Over If you want set the fix PF over, Find the Reactive PowerControl Mode dropdown menu and select the FixedPFOver option; Set fixed PF parameters according to your needs, with a default value of 1; 2. Fixed PF Under If you want set the fix PF Under, Find the Reactive PowerControl Mode dropdown menu and select the FixedPFUnder option;...
  • Page 55 4. Fixed Q If you want set the fix Q, Find the Reactive PowerControl Mode dropdown menu and select the FixedQ option; Set fixedQ parameters according to your needs; 5. Q and U function setting If you want set the Q and U, Find the Reactive PowerControl Mode dropdown menu and select the Qu;...

  • Page 56: Implementation Of Dual-Channel Eps Function

    7.5 Implementation of dual-channel EPS function Note: For the dual-channel EPS function required in some areas, in the off-grid situation, it can allow the customers to turn on and turn off the off-grid additional loads, and provide the settings. of turning on and turning off by adjusting the battery capacity. Wiring diagram for dual EPS Load1 is directly connected to the EPS port and only loses power when the EPS stops outputting.

  • Page 57: Firmware Upgrading

    8. Firmware Upgrading User can upgrade inverter's firmware via a U-disk. • Safety check Please ensure the inverter is steadily powered on. Inverter must keep the battery on through whole procedure of upgrading. Please prepare a PC and make sure the size of U-disk is under 32G, and the format is fat 16 or fat 32. CAUTION Caution! Please DO NOT apply USB3.0 U-disk on inverter USB port, the inverter USB port only support for...
  • Page 58 • local upgrading: USB Upgrade Operation Guide (Apply to Hybrid) Introduction: The inverter is a high-tech integrated system with a CPU controller, which requires maintenance and upgrade. The upgrade is easy to operate with by end user or installer, upgrade files will be provided by manufacturer, please prepare everything ready before performing this upgrade.
  • Page 59 2) Install the USB disk on your laptop, open it and create a folder named‘update’ 3) Create another three separate subfolders named ‘manager’ ‘master’ ‘slave’under ‘update’ folder. 4) Put the upgrade file into corresponding folder as shownbelow * Formate fo the file name: Model_Firmware type_Vx_xx File names example: U:\update\master\Hybrid_Master_Vx_xx...
  • Page 60 4. Only turn on DC breaker (make sure PV voltage is above 120V) wait for 10 seconds, the inverter screen will show as below: 5. If you want to upgrade the inverter firmware, click “up” or “down” to choose the targeted firmware, then click “enter”...
  • Page 61 6. Remove the USB disk after upgrade completed. Follow the procedure blew and click the option to view the version: Menu -> About -> Inv Ver 7. Turn on AC &DC breaker. If you updated the HMI, long press the “enter” and click “set” to turn on the inverter.

  • Page 62: Operation

    9. Operation 9.1 Control Panel Object Name Function LCD screen Display the information of the inverter. Red: The inverter is in fault mode. Blue: Light off- No network connection. Indicator LED Blink- connect to the internet. Light on- connection successful. Green: The inverter is in normal state.

  • Page 63: Function Tree

    9.2 Function Tree Single machine operation mode ...

  • Page 64: Maintenance

    10. Maintenance This section contains information and procedures for solving possible problems with the inverters and provides you with troubleshooting tips to identify and solve most problems that can occur. 10.1 Alarm List Fault Code Solution Grid is lost. Grid Lost Fault •...
  • Page 65 Battery current high detected by software. SW Bat Cur Fault • Disconnect PV, grid and battery, then reconnect. • Or seek help from us, if not go back to normal state. The isolation is failed. • Please check if the insulation of electric wires is damaged. Iso Fault •...
  • Page 66 Battery current high detected by hardware. HW Bat Cur Fault • Disconnect PV, grid and battery, then reconnect. • Or seek help from us, if not go back to normal state. The communication between master and manager is fail. SCI Fault •...
  • Page 67 The grid relay keeps open or close. Grid Relay Fault • Disconnect PV, grid and battery, then reconnect. • Or seek help from us, if not go back to normal state. The communication between master and slave is fail. RDSP SPI Fault •...
  • Page 68 The capacities of cells are different. BmsCellImbalance • Please contact battery supplier. Battery hardware under protection. Bms HW Protect • Please contact battery supplier. Bms hardware circuit fault. BmsCircuit Fault • Please contact battery supplier. Battery insulation fault. Bms Insul Fault •...

  • Page 69: Troubleshooting And Routine Maintenance

    10.2 Troubleshooting and Routine Maintenance • Troubleshooting Please check the fault message on the System Control Panel or the fault code on the inverter information panel. If a message is displayed, record it before doing anything further. Attempt the solution indicated in table above. If your inverter information panel is not displaying a fault light, check the following to make sure that the current state of the installation allows for proper operation of the unit: Is the inverter located in a clean, dry, adequately ventilated place?

  • Page 70: Decommissioning

    11. Decommissioning 11.1 Dismantling the Inverter Disconnect the inverter from DC (for Hybrid only) Input and AC output. Wait for 15 minutes for the inverter to fully de-energize. Disconnect communication and optional connection wirings. Remove the inverter from the bracket. Remove the bracket if necessary.
  • Page 71 The copyright of this manual belongs to FOXESS CO., LTD. Any corporation or individual should not plagiarize, partially or fully copy (including software, etc.), and no reproduction or distribution of it in any form or by any means is permitted. All rights reserved. FOXESS CO., LTD.

This manual is also suitable for:

Ac3 smart seriesH3-m series

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