DELL S Series 24 Inch FHD Computer Monitor User Manual

DELL S Series 24 Inch FHD Computer Monitor User Manual

This guide describes how to use the inverter. In order to prevent improper operation before use, please carefully read this manual.
The user manual version is updated frequently, the latest version can be downloaded from the official website.

Important Notes

1. Scope
   This manual describes the assembly, installation, commissioning, maintenance and troubleshooting of the following model(s) of Fox ESS products:
   S Series (G2):
   S600-G2 S700-G2 S800-G2 S1000-G2 S1500-G2
   S2000-G2 S2500-G2 S3000-G2 S3300-G2

2. Target Group
   This manual is for qualified personnel only. The tasks described in this manual will need to be performed by professional, suitably qualified technicians only.

3. Symbols Used
   The following types of safety instructions and general information appear in this document as described below:| Danger!
   “Danger” indicates a hazardous situation which, if not avoided, will result in death or serious injury.
   ---|---
   | Warning!
   “Warning” indicates a hazardous situation which, if not avoided, could result in death or serious injury.
   | Caution! “Caution” indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
   | Note!
   “Note” provides important tips and guidance.

4. Symbols Explanation
   This section explains the symbols shown on the inverter and on the type label: Symbols| Explanation
   ---|---
   | Symbol Explanation CE mark. The inverter complies with the requirements of the applicable CE guidelines.
   | This mark indicates compound UK product safety certification requirements.
   | Beware of hot surface. The inverter can become hot during operation. Avoid contact during operation.
        | Danger of high voltages.Danger to life due to high voltages in the inverter!
   | Danger.Risk of electric shock!
   | Danger to life due to high voltage.There is residual voltage in the inverter which needs 5 min to discharge. Wait 5 min before you open the upper lid or the DC lid.
   | Read the manual.
   | Product should not be disposed as household waste.
   | PE conductor terminal.

Safety

Appropriate Usage
S Series (G2) inverter is designed and tested in accordance with international safety requirements. However, certain safety precautions must be taken when installing and operating this inverter. The installer must read and follow all instructions, cautions and warnings in this installation manual.

• All operations including transport, installation, start-up and maintenance, must be carried out by qualified, trained personnel.

• The electrical installation & maintenance of the inverter shall be conducted by a licensed 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.

• Before connecting the inverter to the power distribution grid, contact the local power distribution gridcompany to get appropriate approvals. This connection must be made only by qualified technical
  personnel.

• Do not install the equipment in adverse environmental conditions such as in close proximity to flammable or explosive substances; in a corrosive environment; where there is exposure to extreme high or low temperatures; or where humidity is high.

• Do not use the equipment when the safety devices do not work or are disabled.

• Use personal protective equipment, including gloves and eye protection during the installation.

• Inform the manufacturer about non-standard installation conditions.

• Do not use the equipment if any operating anomalies are found. Avoid temporary repairs.

• All repairs should be carried out using only approved spare parts, which must be installed in accordance with their intended use and by a licensed contractor or authorized Fox ESS service representative.

• Liabilities arising from commercial components are delegated to their respective manufacturers.

• Any time the inverter has been disconnected from the public network, please be extremely cautious
  as some components can retain charge sufficient to create a shock hazard. Prior to touching any
  part of the inverter please ensure surfaces and equipment are under touch safe temperatures and voltage potentials before proceeding

PE Connection and Leakage Current

PV System Residual Current Factors

• – In every PV installation, several elements contribute to the current leakage to protective earth (PE).
  these elements can be divided into two main types.

• Capacitive discharge current – Discharge current is generated mainly by the parasitic capacitance of
  the PV modules to PE. The module type, the environmental conditions (rain, humidity) and even thedistance of the modules from the roof can effect the discharge current. Other factors that may
  contribute to the parasitic capacitance are the inverter’s internal capacitance to PE and external
  protection elements such as lighting protection.

• During operation, the DC bus is connected to the alternating current grid via the inverter. Thus, aportion of the alternating voltage amplitude arrives at the DC bus. The fluctuating voltage constantly
  changes the charge state of the parasitic PV capacitor (i.e capacitance to PE). This is associated with a displacement current, which is proportional to the capacitance and the applied voltage amplitude.

• Residual current

• if there is a fault, such as defective insulation, where an energized cable comes
  into contact with a grounded person, an additional current flows, known as a residual current.

Residual Current Device (RCD)

• All Fox ESS inverters incorporate a certified internal RCD (Residual Current Device) to protect against possible electrocution in case of a malfunction of the PV array, cables or inverter (DC). TheRCD in the Fox ESS inverter can detect leakage on the DC side. There are 2 trip thresholds for the RCD 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. The default value for higher speed personal protection is 30mA, and 300mA per unit for lower speed fire safety.

Installation and Selection of an External RCD device

• An external RCD is required in some countries. The installer must check which type of Rudi’s
  required by the specific local electric codes. Installation of an RCD must always be conducted in accordance with local codes and standards. Fox ESS recommends the use of a type-A RCD. Unless a lower value is required by the specific local electric codes, Fox ESS suggests an RCD value between 100mA and 300mA.

• In installations where the local electric code requires an RCD with a lower leakage setting, the discharge current might result in nuisance tripping of the external RCD. The following steps are recommended to avoid nuisance tripping of the external RCD:

1. Selecting the appropriate RCD is important for correct operation of the installation. An RCD with aerating of 30mA may actually trip at a leakage as 15mA (according to IEC 61008). High quality RCDs will typically trip at a value closer to their rating.

2. Configure the trip current of the inverter’ internal RCD to a lower value than the trip current of the external RCD. The internal RCD will trip if the current is higher than the allowed current, but because theinternal inverter RCD automatically resets when the residual currents are low it saves the manual reset.
   Surge Protection Devices (SPDs) for PV Installation

3. Surge Protection Devices (SPDs) for PV Installation
   WARNING!
   Over-voltage protection with surge arresters should be provided when the PV power systemic installed. The grid connected inverter is not fitted with SPDs in both PV input side and mains side. Lightning will cause damage either from a direct strike or from surges due to a nearby strike.
   Induced surges are the most likely cause of lightning damage in majority or installations, especially in rural areas where electricity is usually provided by long overhead lines. Surges may impact on both the PV array conduction and the AC cables leading to the building. Specialists in lightning protection should be consulted during the end use application. Using appropriate external lightning protection, the effect of a direct lightning strike into a building can be mitigated in a controlled way, and the lightning current can be discharged into the ground.Installation of SPDs to protect the inverter against mechanical damage and excessive stress include surge arrester in case of a building with external lightning protection system (LPS) when separation distance is kept. To protect the DC system, surge suppression device (SPD type2) should be fitted at the inverter end of the DC cabling and at the array located between the inverter and the PV generator, if the voltage protection level (VP) of the surge arresters is greater than 1100V, an additional SPD type 3 is required for surge protection for electrical devices.

To protect the AC system, surge suppression devices (SPD type2) should be fitted at the main incoming point of AC supply (at the consumer’s cutout), located between the inverter and the meter/distribution system; SPD (test impulse D1) for signal line according to EN 61632-1. All DCcables should be installed to provide as short a run as possible, and positive and negative cables of
the string or main DC supply should be bundled together.

Avoiding the creation of loops in the system. This requirement for short runs and bundling includes
any associated earth bundling conductors. Spark gap devices are not suitable to be used in DC circuits once conducting; they won’t stop conducting until the voltage across their terminals is
typically below 30 volts.

About Product

About S Series (G2) Inverter
S Series (G2) inverters cover 0.6kW systems up to 3.3kW and are integrated with 1 MPP tracker with high efficiency and reliability.

Basic Features

• Advanced DSP control technology.
• Utilizes the latest high-efficiency power component.
• Optimal MPPT technology.
• Wide MPPT input range.
• Advanced anti-islanding solutions.
• IP65 protection level.
• Max. Efficiency up to 97.4%. EU efficiency up to 96.8%. -Safety & Reliability: Transformerless design with software and hardware protection.
• Export limitation (CT/Meter/ESTOP). -Power factor regulation. Friendly HMI.
• LED status indications.
• LCD display technical data, human-machine interaction through touch key.
• PC remote control.

Terminals Introduction

Note: Only authorized personnel are permitted to set the connection.
Dimensions
For S Series (G2):

Technical Data

DC Input

**Model| S600- G2| S700- G2| S800- G2| S1000- G2| S1500- G2| S2000- G2| S2500- G2| S3000- G2| S3300- G2
---|---|---|---|---|---|---|---|---|---
Max. recommende d DC power[W]| ** 900| **** 1050| **** 1200| **** 1500| **** 2250| **** 3000| **** 3750| **** 4500| **** 4950
Max. DCvoltage [V]| 500| 500| 500| 500| 500| 500| 500| 500| 500
Nominal DC operatingvoltage[V]| 360| 360| 360| 360| 360| 360| 360| 360| 360
MPPTvoltage range [V]| 50-480| 50-480| 50-480| 50-480| 50-480| 50-480| 50-480| 50-480| 50-480
MPPTvoltage range @ full load [V]| 80-450| 80-450| 90-450| 110-450| 160-450| 210-450| 240-450| 280-450| 300-450
Max. input current [A]| 14
Max. short-circuit current [A]| 18
Start output voltage [V]| 60
No. of MPP trackers| 1
Strings per MPP tracker| 1
DC switch| Optional
Max. Inverter backfeed current to the array| **** 0

AC Output ****

**Model| S600- G2| S700- G2| S800- G2| S1000- G2| S1500- G2| S2000- G2| S2500- G2| S3000- G2| S3300- G2
---|---|---|---|---|---|---|---|---|---
Rated outputpower [W]| ** 600| 700| 800| 1000| 1500| 2000| 2500| 3000| 3300
Max. apparent ACpower [VA]| 700| 800| 900| 1100| 1650| 2200| 2750| 3300| 3300
Rated grid voltageand range [V]| 220/230/240
Rated AC frequency andrange [Hz]| 50/60
AC nominalcurrent [A]| 2.6| 3.0| 3.5| 4.3| 6.5| 8.7| 10.9| 13.0| 14.3
Max. output faultcurrent [A]| 31.6
Maximum output over currentprotection [A]| 3.0| 3.5| 3.9| 4.8| 7.2| 9.6| 12.0| 14.3| 14.3
THD| <3%
Displacementpower factor| 1 (Adjustable from 0.8 leading to 0.8 lagging)
Feed in phase| Single-phase
Over voltagecategory| PV: OVC II Mains: OVC III

Efficiency, Safety and Protection

**Model| S600- G2| S700- G2| S800- G2| S1000 -G2| S1500 -G2| S2000 -G2| S2500 -G2| S3000 -G2| S3300 -G2
---|---|---|---|---|---|---|---|---|---
** Max. MPPT efficiency| 99.00%| 99.00%| 99.00%| 99.00%| 99.00%| 99.00%| 99.00%| 99.00%| 99.00%
Euro efficiency| 96.50%| 96.50%| 96.50%| 96.50%| 96.50%| 96.80%| 96.80%| 96.80%| 96.80%
Max. efficiency| 97.20%| 97.20%| 97.20%| 97.20%| 97.30%| 97.40%| 97.40%| 97.40%| 97.40%
Safety & Protection
DC Reverse-polarityProtection| YES
Anti-islandingProtection| YES
Insulation Monitoring| YES
Residual-currentMonitoring| YES
AC Short CircuitProtection| YES
AC Output OverCurrent Protection| YES
AC Output OverVoltage Protection| III (AC) , II (PV)
Surge Protection| DC/AC : Type II (Optional)
TemperatureProtection| YES
AFCI Protection| Optional
Integrated DC Switch Integrated Cowitch| Optional

General Data ****

**Model| S600- G2| S700- G2| S800- G2| S1000 -G2| S1500 -G2| S2000 -G2| S2500 -G2| S3000 -G2| S3300 -G2
---|---|---|---|---|---|---|---|---|---
Dimensions (WHD)[mm]| ** 290220116mm
Weight| 5.4kg
Cooling Method| Natural Convection
Topology| Non-isolated
Noise Emission(typical)| <30 dB
Max. OperatingAltitude| 3000 m (>2000m Derating)
OperatingTemperature Range| -25°C ~ 60°C
Humidity| 0 ~ 100% ( No Condensation )
Protection Degree| IP65
Internal Consumptionat Night| ＜1W
Monitoring Module:WIFI / GPRS| Optional
Communication| RS485, Meter, CT, ISO alarm
Display| LCD, Touch Key, App, Website

Installation

Packing List
Please un-pack the box, check and make sure you received all items as listed below before installation(excluding optional items)

Object| Quantity| Description| Object| Quantity| Description
---|---|---|---|---|---
A| 1| Inverter| I| 1| Set screw
B| 1| Bracket| J| 1| Communication connection
C| 2| DC connector (F/M)| K| 1| Quick installation guide
D| 1| AC connector| L| 1| WiFi/LAN/GPRS (Optional)
E| 3| Expansion tube| M| 1| Unlock tool
F| 3| Expansion screw| N| 1| CT (Optional)
G| 2| DC pin contact(1positive, 1negative)| O| 1| Meter (Optional)
H| 1| Earth terminal| | |

Preparation

• Please refer to the Technical Data to make sure the environmental conditions fit the inverter’s requirements (degree of protection, temperature, humidity, altitude, etc.)
• Please avoid direct sunlight, rain exposure and snow build-up during installation and operation.
• To avoid overheating, always make sure the air flow around the inverter is not blocked.
• Do not install in places where gas or flammable substances may be present.
• Avoid electromagnetic interference that can compromise the correct operation of electronic equipment.
• The slope of the wall should be within ±5°.

Installation Space Required

Tools Required

• Manual wrench;
• Electric drill (drill bit set 8mm);
• Crimping pliers;
• Stripping pliers;
• Screwdriver.

Installation Steps
Step 1: Fix the bracket on the wall

• Choose the place you want to install the inverter. Place the bracket on the wall and mark the positionof the 3 holes from bracket.
  

• Drill holes with electric drill, make sure the holes are at least 50mm deep, and then tighten the expansion tubes.
  

• Insert the expansion tubes into the holes and tighten them. Install the bracket with the expansion screws.

• Step 2: Match the inverter with wall bracket

• Hang the inverter over the bracket, slightly lower the inverter, and make sure the 2 mounting bars on the back are fixed with the 2 grooves from bracket properly.
  

Wiring Steps
Step 1: PV String Connection
S Series (G2) inverters can be connected with 1-string of PV modules. Please select suitable PVmodules with high reliability and quality. Open circuit voltage of module array connected should be less than 500V, and operating voltage should be within the MPPT voltage range.

| Note! Please choose a suitable external DC switch if the inverter does not have a built-in DC switch.
---|---
| Warning! PV module voltage is very high and within a dangerous voltage range, please comply with the electric safety rules when connecting.
| Warning! Please do not make PV positive or negative to ground!
| Note! PV modules – please ensure they are the same type, have the same output and specifications, are aligned identically, and are tilted to the same angle. In order to save cable and reduce DC loss, we recommend installing the inverter as near to the PV modules as possible.

Step 2: DC Wiring

• Turn off the DC switch.

• Choose 12 AWG wire to connect the PV module.

• Trim 6mm of insulation from the wire end.
  

• Separate the DC connector as below
  Plug

Pin contact cable nut

• Insert striped cable into pin contact and ensure all conductor strands are captured in the pin contact.

• Crimp pin contact by using a crimping plier. Put the pin contact with striped cable into the corresponding crimping pliers and crimp the contact.

• 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

  • Use the specified wrench tool.
  • When separating the DC + connector, push the tool down from the top.
  • When separating the DC
  • connector, push the tool down from the bottom.
  • Separate the connectors by hand.

• Grid Connection
  S Series (G2) inverters are designed for single-phase grid. Voltage range is 220/230/240V; frequency is 50/60Hz. Other technical requests should comply with the requirement of the local public grid. Model| S600- G2| S700- G2| S800- G2| S1000- G2| S1500- G2| S2000- G2| S2500- G2| S3000- G2| S3300- G2
  ---|---|---|---|---|---|---|---|---|---
  Cable| 2.5mm²| 2.5mm²| 2.5mm²| 2.5mm²| 2.5mm²| 4mm²| 4mm²| 4mm²| 4mm²
  Micro-Breaker| 16A| 16A| 16A| 16A| 16A| 25A| 25A| 25A| 25A

Note: 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 SHOULDNOTbe connected with the inverter directly.

Step 3: AC Wiring

• Check the grid voltage and compare with the permitted voltage range (refer to technical data).

• Disconnect the circuit-breaker from all the phases and secure against re-connection.

• Trim the wires:

  • Trim all the wires to 52.5mm and the PE wire to 55mm.

  • Use the crimping pliers to trim 12mm of insulation from all wire ends as below
    

  • L: Brown/Red Wire
    N: Blue/Black Wire
    PE: Yellow & Green Wire
    Note: Please refer to local cable type and color for actual installation.

• Separate the AC plug into three parts as below.

  • Hold middle part of the female insert, rotate the back shell to loosen it and detach it from female inset.
  • Remove the cable nut (with rubber insert) from the back shell.
    

• Slide the cable nut and then the back shell onto the cable.
  

• Push the threaded sleeve into the socket, tighten up the cap on the terminal.
  

• Push the threaded sleeve to connection terminal until both are locked tightly on the inverter.
  

• Remove the AC connector, press the bayonet out of the slot with a small screwdriver or the unlock tool and pull it out, or unscrew the threaded sleeve, then pull it out.

Earth Connection
Screw the ground screw with screwdriver as shown below:

Communication Device Installation (Optional)
This S Series (G2) inverter is available with multiple communication options such as WiFi, GPRS, RS485and Meter with an external device.

Operating information like output voltage, current, frequency, fault information, etc., can be monitored locally or remotely via these interfaces.

• WiFi/LAN/GPRS (optional)

The inverter has an interface for WiFi/LAN/GPRS devices that allow this device to collect information from inverter; including inverter working status, performance etc., and update that information to monitoring platform (the WiFi/LAN/GPRS device is available to purchase from your local supplier). Connection steps:

1. For GPRS device: Please insert the SIM Card (please refer to the GPRS product manual for moredetails).
2. Plug the WiFi/LAN/GPRS device into “WiFi/LAN/GPRS” port at the bottom of the inverter.
3. For WiFi device: Connect the WiFi with the local router, and complete the WiFi configuration (please refer to the WiFi product manual for more details).
4. Set-up the site account on the Fox ESS monitoring platform (please refer to the monitoring user
   manual for more details).

• CT (optional)
  This inverter has an integrated export management function. To enable this function, a power meter or CT must be installed. The CT should be clamped on the main live line of the grid side. The arrow on the CT should be pointing towards the grid. The white cable connects to CT+, and the black cable connects to CT-.

Export limitation setting:
Short press the touch key to switch display or make the number+1. Long press the touch key to confirmyour setting.

Note!
For a precise reading and control of power, a meter can be used instead of a CT. If theCT is fitted in the wrong orientation, anti-backflow function will fail.

• RS485/Meter – RS485
  • RS485 is a standard communication interface which can transmit the real time data from inverter to PC or other monitoring devices.

Meter (optional)
The inverter has integrated export limitation functionality. To use this function, a power meter or a CT must be installed. For Meter installation, please install it on the grid side. Export limitation setting:
Short press the touch key to switch display or make the Value+1. Long press the touch key to confirmyour setting.

Manufacturer of electricity meters: EASTRON

Manufacturer of electricity meters: CHINT

• ESTOP
  DRM0 setting
  Short press the touch key to switch display or make the value+1. Long press the touch key to confirmyour setting.

The PIN definitions of CT/Meter/RS485/ESTOP interface are as below.

PIN| 1| 2| 3| 4| 5| 6| 7| 8| 9| 10
---|---|---|---|---|---|---|---|---|---|---
Definition| RS485+| RS485-| E_STOP| VCC_OUT| DRM0_1| GND-S| METER 485+| METER 485-| CT-| CT+
Model| Socket asserted by shorting pins| Function
---|---|---
E_STOP| 3| 6| Emergency stop the inverter.

Note:

• Isolation Fault
  This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an Earth Fault
  Alarm occurs, the fault code Isolation fault will be displayed on the inverter screen and the REDLEDindicator will light up.

• Reactive Power Regulation for Voltage Variation (Volt-VAr Mode)
  Details of how to enable this mode are contained in the “Advanced Configuration Guide”, which can beaccessed at our website at https://www.foxess.com.

• Power Derating for Voltage Variation (Volt-Watt Mode)
  Details of how to enable this mode are contained in the “Advanced Configuration Guide”, which can beaccessed at our website at https://www.foxess.com.

Inverter Start-Up

Please refer to the following steps to start-up the inverter:
a) Check if device is fixed well on the wall;
b) Make sure all DC breakers and AC breakers are disconnected;
c) Ensure AC cable is connected to the grid correctly;
d) All PV panels are connected to inverter correctly; DC connectors that are not used should be sealedby cover;
e) Turn on the external AC and DC connectors;
f) Turn the DC switch to the “ON” position (if equipped with DC switch on the inverter).

If the LED is not green, please check the below:

• * All the connections are correct. – All the external disconnect switches are closed. – The DC switch of the inverter is in the “ON” position. Note: – When starting the inverter for the first time, the country code will be set by default to the local  

  settings. Please check if the country code is correct.

  • Set the time on the inverter using the button or by using the APP. Below are the three possible inverter states indicating that the inverter has started up successfully.
    Waiting: Inverter is waiting to check the DC input voltage from panels is greater than 60V (lowest
    start-up voltage) but less than 50V (lowest operating voltage), display will indicate the Waiting status andgreen LED will flash.
    Checking: Inverter will check DC input environment automatically when DC input voltage fromthe PVpanels exceeds 60V and PV panels have enough energy to start inverter, display will indicate theChecking status and green LED will flash.

• Normal: Inverter begins to operate normally with green light on. Meanwhile feedback energy to grid, LCDdisplays present output power. Note: You can go to the setting interface on the display to follow the instructions if it is the first time tostart up.

• Complete inverter Start-up guide
  After the initial start-up the inverter, display will go to the language settings page, short press to switchlanguage and long press to confirm selection. Once language set, display will guide to set the safety regulation. Short press to switch safety regulation, and long press to confirm selection.

Note!
Please set-up the inverter if it is the first time to start-up. The above steps are for theregular start-up of the inverter. If it is the first time to start up the inverter, you need tocarry-out the initial set-up of the inverter.
Warning!
Power to the unit must be turned on only after installation work has been completed. All electrical connections must be carried out by qualified personnel in accordance with legislation in force in the country of installation.

Inverter Switch Off
Please follow the below steps to switch off the inverter:
a) Switch off the inverter AC isolation switch.
b) Switch off the DC isolation switch and allow 5 minutes for the inverter to power down completely

Operation

Control Panel

display different parameters. Press time <1s (short press): Next;Press time

2s (long press): Enter.Wait time 15s: Return to start.

Function Tree

Firmware Upgrading

User can upgrade inverter’s firmware via a U-disk.

• Preparation
  Please ensure the inverter is steadily powered on.
  Inverter must remain powered through whole procedure of upgrading. Prepare a PC and make sure thesize of U-disk is under 32G, and the format is fat 16 or fat 32.
  Note!
  Please DO NOT apply USB3.0 on inverter USB port, the inverter USB port only support for USB2.0
  Upgrading steps:
  Step 1: Please contact our service support to get the update files, and extract it into your U-disk as
  follows:
  Master: “Update\Master\xxx_Master_Vx.xx.hex”
  Slave: “Update\Slave\xxx_Slave_Vx.xx.hex
  Manager: “Update\Manager\xxx_manager_Vx.xx. hex”
  AFCI: “Update\AFCI\xxx_AFCI_Vx.xx. hex
  Note: Vx.xx is version number.
  Warning: Make sure the directory structure is strictly in accordance with above! Do not modify the program file name, or it may cause the inverter to cease working
  Step 2: Unplug the monitoring device from the “WiFi/GPRS/4G/USB” port and insert U-disk into the”WiFi/GPRS/4G/USB” port at the bottom of the inverter.
  Step 3: Wait for few minutes until the upgrade is finished. The LCD will go back to the first page and show“Unplug u-disk”. Pull out the U-disk and check if the firmware version is the correct one. Please remember to insert the monitoring device.
  

Maintenance

This section contains information and procedures for solving possible problems with the Fox ESS inverters and provides you with troubleshooting tips to identify and solve most problems that can occur.
Alarm List

• Turn off the PV and grid, reconnect them.
• Please seek for help from us if it does not go back to normal state.

**** Bus Volt Fault|

• Disconnect PV (+), PV (-) with DC.
• After the LCD switches off, reconnect and check again.
• Please seek for help from us if it does not go back to normal state.

**** DCI Fault|

• Wait for one minute after the inverter reconnects to grid.- Disconnect PV (+), PV (-) with DC
• After the LCD switches off, reconnect and check again.
• Please seek for help from us if it does not go back to normal state.

Fault Code| Solution
**** EEPROM Fault|

• Disconnect PV (+), PV (-) with DC.
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it does not go back to normal state.

**** GFCI Fault|

• Disconnect DC and AC connector, check the surrounding equipment on the AC side
• Reconnect the input connector and check the state of inverter after troubleshooting
• Please seek for help from us if it does not go back to normal state.

**** GFCD Fault|

• Disconnect PV (+), PV (-) with DC.
• After the LCD switches off, reconnect and check again.- Please seek for help from us if it does not go back to normal state.

**** Grid 10Min OVP|

• System will reconnect if the grid is back to normal.
• Or seek for help from us if it does not go back to normal state.

**** Grid Freq Fault|

• Wait for one minute, grid may go back to normal working state.- Make sure that grid voltage and frequency complies with standards.
• Or, please seek for help from us.

**** Grid Lost Fault|

• Please check grid-connection, e.g., wires, interface etc
• Checking grid usability
• Or seek for help from us.

**** Vgrid Transient|

• Disconnect PV (+), PV (-) with DC
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it does not go back to normal state.

**** Grid Voltage Fault|

• Wait for one minute, grid may go back to normal working state.- Make sure that grid voltage and frequency complies with standards
• Or, please seek for help from us.

---|---
**** Consistent Fault|

• Disconnect PV (+), PV (-) with DC
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it cannot go back to normal state.

**** ISO Fault|

• Check the impedance among PV (+), PV (-) and ground. Impedance should be >1Mohm
• Please seek for help from us if it cannot be detected or the impedance is<1Mohm.

**** Ground Fault|

• Check the voltage of neutral and PE
• Check AC wiring
• Restart inverter, if error message persists, seek for help from us.

**** OCP Fault|

• Turn off the PV and grid, reconnect them.
• Or seek for help from us if it does not go back to normal.

**** PLL Fault|

• System will reconnect if the utility is back to normal
• Or seek for help from us if it does not go back to normal state.

Fault Code| Solution
**** PV OVP|

• Check the panel’s open-circuit voltage whether the value is similar or already >550Vdc.
• Please seek help from us when voltage ≤550Vdc.

**** Relay Fault|

• Disconnect PV (+), PV (-) with DC
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it does not go back to normal state.

**** Sample Fault|

• Disconnect PV (+), PV (-) with DC.
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it cannot go back to normal state.

**** SCI Fault|

• Disconnect PV+, PV-, reconnect them
• Or seek for help from us if it does not go back to normal state.

**** SPI Fault|

• Disconnect PV (+), PV (-) with DC.
• After the LCD switches off, reconnect and check again
• Please seek for help from us if it cannot go back to normal state.

**** Over Temp Fault|

• Check if the environment temperature is over the limit.
• Or seek for help from us.

Troubleshooting
a. 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. b. Attempt the solution indicated in table above. c. 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:

1. Is the inverter located in a clean, dry, adequately ventilated place?
2. Have the DC input breakers closed?
3. Are the cables adequately sized?
4. Are the input and output connections and wiring in good condition?
5. Are the configurations settings correct for your particular installation?
6. Are the display panel and the communications cable properly connected and undamaged

Contact Fox ESS Customer Service for further assistance. Please be prepared to describe details of your system installation and provide the model and serial number of the unit.

Routine Maintenance

• Safety check
  A safety check should be performed at least every 12 months by a qualified technician who has adequate training, knowledge and practical experience to perform these tests. The data should be recorded in anequipment log. If the device is not functioning properly or fails any of the tests, the device has to berepaired. For safety check details, refer to section 2 of this manual.

• Maintenance checking list
  During the process of using the inverter, the responsible person shall examine and maintain the machine regularly. The required actions are as follows.

  • Check that if the cooling fins at the rear of the inverters are collecting dust/dirt, and the machineshould be cleaned when necessary. This work should be conducted periodically.

  • Check that if the indicators of the inverter are in normal state, check if the display of the inverter is
    normal. These checks should be performed at least every 6 months.

  • Check if the input and output wires are damaged or aged. This check should be performed at least
    every 6 months.

  • Get the inverter panels cleaned and their security checked at least every 6 months.
    Note: Only qualified individuals may perform the following works.

Decommissioning

1. Dismantling the Inverter

   • Disconnect the inverter from DC Input and AC output. Wait for 5 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

2. Packaging
   If possible, please pack the inverter with the original packaging. If it is no longer available, you can alsouse an equivalent box that meets the following requirements.

   • Suitable for loads more than 30 kg.
   • Contains a handle.
   • Can be fully closed.

3. Storage and Transportation
   Store the inverter in dry place where ambient temperatures are always between -40°C – +70°C;
   Take care of the inverter during the storage and transportation; keep less than 4 cartons in one stack. When the inverter or other related components need to be disposed of, please ensure it is carried out
   according to local waste handling regulations. Please be sure to deliver any inverter that needs to bedisposed from sites that are appropriate for the disposal in accordance with local regulations.

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. Add: No.939, Jinhai Third Road, New Airport Industry Area, Longwan District, Wenzhou, Zhejiang, China Tel: 0510-68092998 WWW.FOX-ESS.COM

References

• Welcome to Fox – High Performance Inverters, Chargers & Batteries

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