EQX2 8002-SX - Solar panel Salicru - Free user manual and instructions

USER MANUAL EQX2 8002-SX Salicru

2.1. USING THIS MANUAL. 2.2. NOTES ON SAFETY. 2.3. CONVENTIONS AND SYMBOLS.

4.1.3. Naming convention

4.1.4. Applicable neutral points.

5.1.1. Installation location.

5.1.2. Recommended installation distances.

5.2. ASSEMBLY PROCESS. 5.3. ELECTRIC CONNECTION.

5.3.1. External earthing connection.

5.3.2. Photovoltaic panel connection.

5.5.1. Description of the terminals.

7.4.1. Download and register the "EQX-sun" app.

7.4.2. Configuration of the installation (plant) in the EQX-sun

7.4.4. "24h" monitoring. (Day and night). The optional devices

6B2OP000007 (4895/WiFi 24H EQX) and 6B2OP000008 (EXM1 EQX) are required.

7.4.5. Operation of the EQX-sun application.

7.4.6. Individual plant screen.

1.1. THANK-YOU LETTER. We would like to thank you for purchasing this product. Read this instruction manual carefully in order to familiarise yourself with its contents. You will get the most out of the unit, achieve ahigher degree of satisfaction and guarantee high levels of safety the more you understand the unit. Please do not hesitate to contact us for any further information or any questions you may have. Yours sincerely,

• The unit described in this manual can cause serious physical injury if handled incorrectly. Therefore, the unit must only be installed, serviced and/or repaired by our staff or by qualified personnel.

• Although every effort has been made to guarantee that the information in this user manual is complete and accurate, weare not responsible for any errors or omissions that may be present. The images included in this document are for illustrative purposes only and may not accurately represent the parts of the unit shown. Images are not binding and may be modified without notice. However, any differences will be reduced or resolved through the correct labelling on the unit.

• In line with our policy of continuous development, wereserve the right to modify the specifications, operating principle or actions described in this document without prior notice.

• The reproduction, copying, transfer to third parties, modification or translation in full or in part of this manual or document, in any form or by any means, without prior written consent from our company, is prohibited, with us reserving the full and exclusive right of ownership to it. SALICRU45

• This user manual applies to the units described on the cover and intends to be aguide that describes the installation and start-up instructions under safe conditions and in accordance with the standards. Please read the entire manual before carrying out any action, procedure or operation with the unit, especially before applying voltage to the input, respecting the actions in the order shown in this manual.

Compliance with the "Safety instructions" is mandatory; therefore, the user will be legally responsible for observing and applying them at all times.

• If you do not fully or partially understand the instructions, especially those relating to safety, you should not proceed to install or commission the unit, since this may pose arisk to your safety or that of other people, with the possibility of causing serious injury and even death, in addition to causing damage to the equipment and/or to loads and the installation.

Local electrical regulations and different restrictions at the customer's location may invalidate some recommendations contained in the manuals. Where discrepancies exist, the relevant local regulations must be followed.

• All units are supplied with the corresponding labels to guarantee the correct identification of each part. In addition, the user can refer to the user manual at any time during installation or start-up operation, which provides clear, well- organised and easy-to-understand information.

• Finally, once the unit is installed and in operation, werecommend that you keep the documentation in asafe place that is easy to access, in case of any future queries that may arise. The following terms are used interchangeably in the document to refer to:

"EQX2, equipment or unit".- Equinox 2 photovoltaic inverter.

• "T.S.S.".- Technical Service and Support.

Customer, installer, operator or user".- They are used interchangeably and, by extension, to refer to the installer and/ or the operator who will carry out the corresponding actions, whereby the responsibility for carrying out the respective actions may be held by the same person when they act on behalf or in representation of the installer or operator. 2.2. NOTES ON SAFETY.

1. Before installation, read this manual carefully and strictly

follow its instructions.

2. Installers must receive professional training or obtain

certificates of professional qualification related to electricity.

3. During installation, do not open the front cover of the inverter.

In addition to carrying out work on the wiring terminal (asindicated in this manual), touching or changing components without authorisation may cause personal injury, damage to the inverters, and void the warranty.

4. All electrical installations must comply with local electrical

5. If the inverter needs maintenance, please contact the desig-

nated technical personnel for installation and maintenance.

6. To use this inverter connected top the grid to generate power,

permission from the local power supply authority is required.

The temperature of some parts of the inverter may exceed 60°C during operation. To avoid burns, do not touch the inverter during operation. Let it cool down before doing so.

When exposed to sunlight, the solar field generates adangerously high DC voltage. Operate in accordance with the instructions in manual, danger of death. 2.3. CONVENTIONS AND SYMBOLS. The table below shows the symbols that may appear in this manual and their definition: Danger Hazardous situation which, if not avoided, could result in death or serious injury to personnel. Warning Potentially hazardous situation which, if not avoided, could result in death or serious injury to personnel. Caution Potentially hazardous situation which, if not avoided, could result in minor or moderate injury to personnel. Attention Safety warning information about the equipment or the environment, to prevent damage to the equipment, data loss, degradation of performance or other unpredictable results. Note This symbol highlights important information, best practices and tips, etc. Tab. 1. Symbols used in this manual. EQX2 SOL AR INVERTERS CONNECTED TO THE GRIDUSER MANUAL46 SALICRU

2.3.1. Explanation of the symbols.

This chapter explains the symbols that appear on the inverter, label and packaging.

2.3.1.1. Symbols on the inverter.

Inverter status indicator. Inverter operation indicator. Earthing connection symbol, the inverter housing must be properly earthed. Tab. 2. Inverter symbols.

2.3.1.2. Inverter label symbols.

The inverter may not be disposed of with household waste. Please read the instructions carefully before installation. Do not touch any internal part of the inverter for 5 minutes after it has been disconnected from the grid and from the photovoltaic input. CE marking, the inverter meets the requirements of the applicable CE directives. SGS certification. TÜV certification. Danger.Risk of electric shock. Do not touch. Hot surface during operation. Danger of electric shock, live parts, risk of electric shock, do not touch. Tab. 3. Labelling symbols.

2.3.1.3. Packaging symbols.

Handle with care. Indicator of the correct direction of the packaging. Earthing connection symbol, the inverter housing must be properly earthed.

ANDSTANDARDS. 3.1. MANAGEMENT STATEMENT. Our aim is to satisfy our customers. Management has established aQuality and Environmental Policy for such purposes. Asaresult, aQuality and Environmental Management System will be imple- mented, which will ensure that we are compliant with the requirements of the ISO 9001 and ISO 14001 standards and that we meet all customer and stakeholder requirements. The company management is also committed to the development and improvement of the Quality and Environmental Management System, through:

• Communication to the entire company of the importance of meeting both the customer’s requirements, and legal and regulatory requirements.

• Dissemination of the Quality and Environmental Policy and setting of the Quality and Environment targets.

• Provision of the necessary resources. 3.2. STANDARDS. The product is designed, manufactured and marketed in accordance with the ISO 9001 Quality Assurance standard. The mark indicates conformity with the EEC Directives through application of the following standards:

2011/65/EU. - Restriction of hazardous substances in electrical and electronic equipment (RoHS).

2012/19/EU. - Waste electrical and electronic equipment (WEEE). Grid connection laws in Spain:

• Royal Decree RD647/2020, which regulates aspects necessary for the implementation of the grid connection codes of certain electrical installations.

• Royal Decree RD244/2019, which regulates the administrative, technical and economic conditions of self-consumption of electrical energy According to the specifications of the corresponding harmonised standards. Reference standards: Electrical safety:

• IEC/EN/UNE 62109-1:2010. Safety of power converters for use in photovoltaic power systems. Part 1: General requirements.

IEC/EN/UNE 62109-2:2011. Safety of power converters for use in photovoltaic power systems.Part 2: Particular requirements for inverters. Electromagnetic compatibility:

• IEC/EN/UNE 61000-6-2:2005. Electromagnetic compatibility (EMC). Part 6-2: Generic standards. Immunity in industrial environments.

IEC/EN/UNE 61000-6-3:2007/A1:2011. Electromagnetic compatibility (EMC). Part 6-3: Generic standards. Emission standard for residential, commercial and light-industrial environments. Efficiency:

• IEC/EN/UNE 61683:1999. Photovoltaic systems. Power conditioners. Procedure for measuring efficiency. Environment:

• IEC/EN/UNE 60068-2-1:2007 / IEC/EN/UNE 60068-2:2007 / IEC/EN/UNE 60068-14:2009 / IEC/EN/UNE 60068-30:2005. Environmental tests. Cold/Dry heat/Temperature changes/ Cyclic heat. Grid connection:

• IEC/EN/UNE 62116:2014. Utility-interconnected photovoltaic inverters. Test procedure of islanding prevention measures.

IEC 61727:2004. Photovoltaic (PV) systems - Characteristics of the utility interface. Only for installations in Spain :

UNE 217002:2020. Inverters for connection to the distribution network. Testing of requirements for DC grid injection, overvoltage generation and island operation detection system.

UNE 217001:2020. Tests for systems intended to avoid the energy transmission to the distribution network. The manufacturer shall not be held responsible for any damage caused by the user altering or tampering with the unit in any way. The EC declaration of conformity for the product is available for the customer and can be requested from our head office. 3.3. ENVIRONMENT. This product has been designed with the protection of the environment in mind and has been manufactured in accordance with the ISO 14001 standard. Recycling the unit at the end of its useful life: Our company commits to using the services of approved companies that comply with the regulations in order to process the recovered product at the end of its useful life (please contact your distributor). Packaging: To recycle the packaging, follow the applicable legal regulations, depending on the particular standards of the country where the unit is installed. EQX2 SOL AR INVERTERS CONNECTED TO THE GRIDUSER MANUAL48 SALICRU

The inverter of the EQX2 series is asingle-phase grid-connected photovoltaic inverter used to efficiently convert the DC power generated by the photovoltaic string into AC power, so it can be injected into the grid.

The EQX2 series of single-phase inverters has the following models:

4.1.3. Naming convention

EQX2 3002-HS S Single-phase.SX Single-phase with 15 A MPPT. T Three-phase.H Hybrid. Non-hybrid.Rounded power in W + MPPT number.Serial name.

4.1.4. Applicable neutral points.

The applicable neutral points for the models of the EQX2 series are TN-S, TN-C, TN-CS and TT. When applied to aTT grid, thevoltage from N to PE should be less than 30 V. For more details, refer to Fig. 1: EQX2 EQX2 EQX2 EQX2 Fig. 1. Applicable neutral points.

4.1.5. Storage conditions.

• The inverter must be stored in its original packaging.

• The temperature and humidity should be between -30ºC and +60ºC, and less than 90%, respectively.

• If it is necessary to stack agroup of inverters, the height of each stack should not exceed 6 levels. 4.2. DIAGRAMS.

Fig. 4. Bottom view. Rear rail Vent valve Fig. 5. Rear view.

Fig. 8. Bottom view. Rear rail Vent valve Fig. 9. Rear view. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL50 SALICRUThe connection terminals are located at the bottom of the unit, as shown in the following table:Item Terminal Note DC switch On/Off switch DC input terminal PV Connector COM1 port WiFi USB module connector COM2 port CT/RS485 connector AC output terminal Connection for AC outputTab. 4. Connection terminals.4.3. SCREEN INTERFACE AND WIFI MODULE.

Off No voltage detection or input voltage too low.Slow flashInverter On, waiting for grid connection.Fast flash Grid detected. Self-test mode. Normal, connected to the grid and generating energy. OLED display

Displays inverter operation information. Off If there is no response when pressing the button, the screen is faulty or not connected properly.Button (Physical)Change the information on the OLED screen and set the parameters with ashort press and long press (see "7. System operation.").Alarm indicator

The communication between the inverter and the server is normal. However, the inverter reports an error.Check the guide for more information about common faults and troubleshooting.

FlashThe WiFi module is not properly connected to the inverter's "Com" port.Check if the WiFi module is connected properly to the inverter. Remove and insert the Smart Dongle; Restart the inverter.

Off Changed router or password. The WiFi signal is too weak at the place of installation.Remove and insert the WiFi module, configure and move the router closer to the inverter. Register the user account in the application. Fast flash (*) The WiFi module is connected to the router, but not at the server.Verify that the router has an Internet connection. Verify that the firewall is not blocking port 5743.

Off Communication between inverter and server is normal.Communication is normal.

4.4. PACKING LIST. The packaged inverter includes the following accessories. Check that all of the accessories supplied with the inverter are included when you receive the package. Refer to the packing list in Tab. 6.

Fig. 12. Items included in the packaging. Item Description Quantity 1 Inverter 1 2 Wall mounting bracket 1 3 Expansion bolts 4

3-pin connector, located in the same connector of the equipment.

WiFi antenna for 12h monitoring (**). It works only for

7 AC connector and Allen key. 1 8 Earthing terminal 1 9 Z-shaped security plate and fixing screws. 1 10 User manual 1 11 Current transformer 1 (*) 1x(+) and 1x(-) on all units with 1 MPPT. 2x(+) and 2x(-) on units with 2 MPPT. (**) 12h monitoring is understood as the solar irradiation time slot. Tab. 6. Packing list. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL52 SALICRU

5.1. LOCATION. The inverters of the EQX series have been designed with an enclosure with IP65 degree of protection, suitable for indoor and outdoor installations. The following factors should be taken into account when selecting an installation location for the inverter:

1. The wall on which the inverters are mounted must be able to

support the weight of the inverter.

2. The inverter must be installed in awell-ventilated environ-

3. Make sure that the inverter is not exposed directly to strong

sunlight to avoid operation at excessive temperatures. Theinverter should be installed in aplace sheltered from direct sunlight and rain.

4. Install the inverter at eye level for easy reading of the data

on the screen and better maintenance.

5. The ambient temperature of the place where the inverter is

installed must be between -30ºC and +60ºC.

6. The surface temperature of the inverter can reach up to

75ºC. To avoid the risk of burns, do not touch the inverter during operation and install it out of the reach of children.

5.1.1. Installation location.

We recommend installing inverters indoors. However, if there is no choice but to install outdoors, shows recommended locations, as well as those to avoid: Fig. 13. Recommended locations for the inverter. Warning Do not store flammable and/or explosive materials near the inverter.

5.1.2. Recommended installation distances.

Installation angle and spacing : Check that the inverter is installed on avertical surface and that it keeps the following minimum safety distances with respect to other elements for optimal ventilation, as shown in Fig. 14: 90° 180° Fig. 14. Recommended installation distances. Dimensions Distance (mm)A 450B 200 5.2. ASSEMBLY PROCESS. Steps: 5.3. ELECTRIC CONNECTION. Danger An excessively high voltage on the conductive part of the inverter may cause electric shock. When installing the inverter, make sure that the AC and DC sides of the inverter are completely de-energised. Warning Do not connect the positive or negative poles of the photovoltaic panel to earth, since this may cause major damage to the inverter. Warning Static electricity can damage the inverter's electronic components. Take the necessary anti-static measures during installation and maintenance.53

Attention Do not use terminals of different manufacturers or of different types, other than those included in the accessory pack. SALICRU shall not be held liable for any form of damage caused by the use of unauthorised terminals. Attention Moisture and dust can damage the inverter; check that the cable gland is tight enough during installation. Thewarranty will be void if the inverter is damaged as aresult of an improperly installed cable gland.

PIAs Fig. 15. General connection. In the following sections, the different possible connections of the inverter will be explained in detail.

5.3.2. External earthing connection.

Danger Do not connect the neutral N wire as a protective earthing wire to the inverter housing. This may cause electric shock. Attention An optimal earthing connection can withstand resist surge discharges and improve EMI performance. Inverters must be properly earthed. For systems with asingle inverter, the PE wire must be earthed. For a multi-inverter system, all PE cables from the inverters must be connected to the same copper earthing bar to ensure equipotential bonding. Steps for connecting the terminal to earth:

1. The external earthing connection terminal is located on the

lower right side of the inverter.

2. Fasten the earthing connection terminal to the PE cable with

asuitable tool and lock the earthing connection terminal to the earthing connection hole on the bottom right side of the inverter as shown in Fig. 16.

3. The cross-sectional area of the external earthing wire is 4 mm

5.3.3. Photovoltaic panel connection.

1. The following must be taken into account when making the

electrical connections to the inverter: a. Disconnect the AC switch on the grid side. b. The inverter's DC switch must be set to "OFF". c. To ensure that the best practices are followed, check that the photovoltaic panels connected in each string are of the same model and specifications. d. Check that the maximum output voltage of each photovol- taic string does not exceed the maximum voltage speci- fied in the table of technical characteristics in the section "9. Technical features.". e. Insert the relevant DC circuit breakers, according to the following Tab. 7, leaving a minimum distance of 5 meters from the inverter so that the external protections are activated first:: EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL54 SALICRU S/SX Models Isolating switch Fuses Overvoltage circuit breaker If no light- ning rod is installed If lightning rods are installed or there is ahigh probability of lightning EQX2 2001-S Integrated into the equipment Fuses 1000Vdc 15A 40kA 600Vdc type II 5kA 1000Vdc type I+II EQX2 3001-S Fuses 1000Vdc 15A, 1 por string EQX2 3002-S EQX2 3002-SX EQX2 4002-S EQX2 4002-SX EQX2 5002-S EQX2 5002-SX EQX2 6002-S EQX2 6002-SX EQX2 8002-SX EQX2 10002-SX Tab. 7. DC circuit breakers.

2. DC connector assembly procedure.

a. Select the suitable photovoltaic cable: Type of cable Cross-section area General photovoltaic cable Range (mm

) Recommended value (mm

Tab. 8. Selecting the photovoltaic cable. b. Strip 7 mm. of the insulation sleeve of the DC cable, asshown in Fig. 17: 7 mm Cable cross-section 2.5-4 mm

Fig. 17. Wire end stripping. c. Remove the connector from the accessory bag, as shown in Fig. 18: Fig. 18. Disassembling the connector. d. Insert the DC cable through the DC connector nut on the metal terminal and press the terminal with professional crimping pliers (pull the cable to check if the terminal is well connected to the cable), as shown in Fig. 19: To ensure an optimal connection, use an approved tool to crimp the terminals. Fig. 19. Crimping the cable. e. Insert the positive and negative cables into the corre- sponding positive and negative connectors, pullthe DC cable to make sure that the terminal is well connected to the connector. f. Use an open-end wrench to screw the nut all the way in and make sure that the terminal is sealed well, as shown in Fig. 20: Use the special wrenches for MC4 connectors to ensure that the correct tightening torque is applied, without damaging the connectors. Fig. 20. Using an open-end wrench. Warning Before assembling the DC connector, make sure that the cable has the correct polarity. Use a multimeter to measure the DC input string voltage, check the polarity of the DC input cable, and make sure that the voltage of each string is under the maximum voltage specified in the "Tab. 16. Technical features.". Fig. 21. Checking the polarity and voltage using a DC multimeter.55

3. Connect the cables to the inverter as shown in the following

connection diagrams: a. Connection for installations with a single solar field (panels in the same direction and strings of equal length): Fus.

Connection for installations with solar fields of different power ratings (panels with different direction and/or strings of different lengths): If the installation does not have the solar panels on the same plane, i.e., they receive different levels of irradiance, either due to the shape of the roof or due to the different inclination levels, or the lengths of the strings are not the same, the connection must be made as follows: MCB MCB Fus. Fus. SPD SPD

Inverter Fig. 24. Connection of several solar fields and 2 MPPTs. A different solar field is understood to be those that are made up of panels from different manufacturers, lengths and/or different powers.

4. Insert the positive and negative connectors into the respective

DC input terminals of the inverter. If the terminals are properly connected, they will make aclicking sound, as shown in Fig. 25 and Fig. 26: Fig. 25. Connecting the DC input terminals of units with 1MPPT. Fig. 26. Connecting the DC input terminals of units with 2MPPTs. - Disconnect the AC circuit breaker from the grid side before connecting the DC input terminals. - The DC circuit breaker must be "OFF". - Insulate the unused DC terminals with covers.57

Before connecting to the grid, make sure that the voltage and frequency of the grid meet the inverter's requirements. Please refer to the technical parameters for more details. This inverter includes abuilt-in residual current device (RCD). If an external residual current device (RCD) is used, atype A device must be used, with atrip current of 30 mA or more. The recommended AC cord and switch for the EQX series single- phase inverter is shown in Tab. 9: Model Cable (mm

EQX2 10002-SX Tab. 9. Circuit breaker gauge and cable cross-sections, by model.

1. Steps for connecting the AC connector.

a. Extract the AC connector from the accessory bag and dis- assemble it, following the steps marked on Fig. 27: – Insert the plastic piece into the holes marked in red and pull the connector head out. – The fully disassembled AC connector is shown below: Cable glandThreaded sleeveAC terminal head Fig. 27. AC connector. b. According to the above table, select asuitable cable, re- move the insulation sleeve from the AC cable about 50mm, and remove the insulation from the end of the L/PE/N ca- bles about 8 mm, as shown in Fig. 28: Cable diameter: 10-14 mm.Stripped length: 8 mm.50 mm. Fig. 28. Cable stripping. c. Insert the stripped end of the three cables into the cor- responding hole of the terminal head (yellow-green cable into the PE port, phase into the L port and neutral into the N port). Pull from the cable to check that it is properly con- nected, as shown in Fig. 29: Allen wrench Fig. 29. Inserting the bare wire into the terminal. d. According to the direction of the arrow, push the threaded sleeve until it connects to the AC terminal head, and then turn the cable gland clockwise to lock it, as shown in Fig. 30: Fig. 30. Connecting and fastening the sleeve on the AC terminal. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL58 SALICRU e. Connect the AC connector to the inverter's AC terminal; aclick indicates that the connection is in place, as shown in Fig. 31: Fig. 31. Connecting the AC connector to the inverter's AC terminal. f. Insert the relevant AC circuit breakers in between, asshown in the table below: Model Thermal- magnetic circuit breaker Differen- tial relay Over- voltage protection Previous fuse. Max. value (1/phase) EQX2 2001-S 2P 16A Curve C 2P 25A 30mA Class A 40kA 230V TT Type II 125 A gL EQX2 3001-S 2P 20A Curve C EQX2 3002-S EQX2 3002-SX EQX2 4002-S 2P 32A Curve C 2P 40A 30mA Class A EQX2 4002-SX EQX2 5002-S 2P 40A Curve C EQX2 5002-SX EQX2 6002-S EQX2 6002-SX EQX2 8002-SX 2P 50A Curve C 2P 63A 30mA Class A EQX2 10002-SX 2P 63A Curve C Tab. 10. AC circuit breakers g. Connect the other end of the hose to the AC circuit breaker in the junction box, downstream of the connection's IGA.

PIAs Fig. 32. Electrical wiring diagram. For the connection of equipment with 24h monitoring, see manual EL23300.59

Plug the WiFi module into the USB (WiFi) port located at the bottom of the inverter (as shown in Fig. 33). A "click" indicates that the module has been fitted correctly. Fig. 33. Communication device connection (WiFi antenna). 5.5. CT TRANSFORMER INSTALLATION.

Fig. 34. View of the connection of the CT transformer. Steps to follow for installation: 1. Open the CT.2. The current transformer must be installed just after the IGA.3. Pass the network cable in the direction of the current as indicated by the arrow: from the installation (P1) to the electrical network (P2).

4. The cables must be connected to the inverter according to Tab. 13.5. Close the CT.

5.5.2. Wiring steps.

1. Remove the protective plate at the bottom of the inverter,

removing the 4 screws that hold it with a Phillips screwdriver.

2. Pass the wire through the hole and connect it to the terminal

in the following order: screw cap, sealing ring, insulator, metal plate, nut and 3/6 pin connector, as shown in Fig. 35: 3 pin connectorInsulator ring Nut Screw capMetal plateSealing ringPort 1 Fig. 35. Terminal connection process.

3. Insert the cable into the port using the 3-pin connector and

fasten it with ascrewdriver.

4. Insert the 3-pin connector into the inverter and screw the cover

plate back on using aPhillips screwdriver. Make sure that the protective plate sealing rubber is perfectly adjusted in order to prevent water and/or humidity from entering.

5.5.2.1. Definition of the terminals.

The inverter's communication ports are located at the bottom and behind the COM2 board, and include the CT port, RS485 port (used for the data logger connection), as shown in Fig. 36:

Fig. 36. Communication ports. Insert the CT transformer connector into Port 1 as indicated in Tab. 12, following the pinage described in Tab. 13: Port 1 Port 2 Port 3CT port RS485 port Not used Tab. 11. Port identification. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL60 SALICRU Port No. Function Selector no. Definition

Connect the external transformer for the Zero Injection and Monitoring function of the EQX2 series inverters. 1 Connect cable S1 2 Connect cable S2 3 Zero. 2 Monitoring / RS485 1 RS 485 A 2 RS 485 B 3 PE / Zero Tab. 12. Communication ports. Port 2 is used exclusively for 24h monitoring systems. To do this, it is necessary to purchase the 485/WIFI EQX2 and ESM1 EQX equipment (see manual EL23300 for installation). 5.6. GENERAL INSTALLATION DIAGRAM. Distribution network CGMP (General Command and Protection Panel) Inverter Installation Installation of photovoltaic panels Loads Port 2 DC PV Protections

Protections RED BLACK Port 1 Connection point / Meter Fig. 37. Inverter installation diagram. - Color code used to represent the distribution network: BLACK, BROWN or GRAY for phases L1, L2 and L3, and BLUE for neutral. - Color code used to represent the AC supply of the installation: BROWN for the phase and BLUE for the neutral. - Color code used to represent the ground wire: YELLOW/GREEN. - Color code used to represent the DC power of the installation: RED for the positive cables and BLACK for the negative cables. - Color code used to represent the DC supply of the CT transformer: RED for the positive and BLACK for the negative. In order not to overload the diagram, the ground cables have only been represented at the ground connection points of the protection devices, the inverter and the battery system.61

Electric arc hazard. Do not open any DC isolating switch if the unit is under load.Follow the steps indicated below to start the inverter:1. Activate the inverter switch/isolating switch and set it to ON.2. Make sure that the solar field is connected.Activate the circuit breakers to enable the photovoltaic power supply. 3. Ensure the presence of grid voltage. Activate the circuit breakers to enable the grid supply. Without agrid, the unit will not activate the generation mode.

4. The unit will start. The LCD screen will turn on. The next section describes the steps that must be followed and the operation of the console.Follow the steps below to stop and turn off the inverter:1. Disable the grid power supply. Without agrid, the unit will stop generating.2. Turn off the solar field supply. Activate the circuit breakers to cut off the photovoltaic power supply.3. Deactivate the inverter's switch/isolating switch and set it in the OFF position.

4. The unit will stop. When the internal capacitors of the DC bus are fully discharged and have no voltage, the LCD screen will turn off. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL62 SALICRU

7. SYSTEM OPERATION.

7.1. DESCRIPTION OF THE SCREENS. When the inverter is started, the following interfaces will be displayed on the OLED screen, which allows the user to check different types of operating information, as well as to change the inverter settings. Please refer to the following screen operation flow chart for more details:

"Status" screen menu. Screen 0.1 Inverter status indicator and the power it is gen- erating. "Waiting" status: The inverter is receiving power from the panels, but it does not detect aconnection to the grid. "Verifying" status: The inverter has panel and is receiving power from the grid, and is performing internal checks be- fore start-up. "Normal" status: Under production and without anomalies. "Failure" status: Without production and with anomalies.

"PV1" Screen menu. Screen 1.1 Indicator of the voltage and intensity of the solar field connected to the MPPT 1.

"I grid" screen menu. Screen 4.1 Indicator of the intensity supplied to the installa- tion.

"F grid" screen menu. Screen 5.1 Indicator of the grid frequency.

"E. Day" screen menu. Screen 6.1 Indicator of the energy generated during the day.

"E. Total" screen menu. Screen 7.1 Indicator of the energy that has been generated since the start-up of the inverter.

"Time ON" screen menu. Screen 8.1 Indicator of the time that the inverter has been in operation since its start-up.

• To open one of the menus, press and hold ENTER () for acouple of seconds. Press ENTER () repeatedly to scroll horizontally through the menu.

• If no key is pressed for more than 10 seconds in amenu, thesystem will automatically return to the previous menu. E. Day E.Total Time ON Unit model Screen 6.1 Screen 7.1 Screen 8.1 Screen 9.1

Screen 10.2.2 System information FW version FW version (II) Check code Fault into SSID

Screen 10.15.2 Screen 10.15.1 Language: Spanish Language: English Language: Portuguese Language: Polish Fig. 38. Display menu tree.65

7.2. TRANSFORMATION RATIO CONFIGURATION. To configure the transformation ratio of the CT, follow these steps on the inverter display:

• CT Ratio:Set the value 2000:1 for the CT supplied with the inverter. 7.3. ZERO INJECTION FUNCTION. The "Zero injection" function prevents the energy generated by the inverter that is not consumed in the same installation from being fed into the grid. In other words, it reduces the power of the inverter so that the generation is adapted to the consumption. To activate the function, follow these steps on the inverter display:
• Main configuration • Power limit – make sure that it is set to “ON”. • Export. • Change from 100% to 0%. Once the "Zero injection" is configured, the inverter will limit its power to match it at all times to the consumption of the installation and not inject excess energy into the grid. The transformer CT must be installed and connected, asdescribed in section 5.5.4. 7.4. ON-LINE MONITORING OFTHEINSTALLATION. The EQX2 inverter provides amonitoring port that can gather and transmit data from the inverter to the monitoring platform through an external monitoring device. There are two methods available, via download and registration of the application (Fig. 39) and through the Configuration of the installation (plant) in the EQX-sun application (Fig. 40). If there are download problems, contact your distributor or SALICRU´s technical support.

7.4.1. Download and register the "EQX-sun" app.

Download the EQX-sun app and install it on the smartphone or tablet of the end user of the EQUINOX solar inverter. This process can take afew min- utes. Once complete, open the EQX-sun app. A home screen will appear to enter the credentials if you are already auser or to register anew user:

To register anew user, click above the text "Register" so that the application allows you to complete the necessary fields to process the registration and be able to use the application. A demo version of the application is available. Toopen it, press the “Demo” button on the bottom right of the screen. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL66 SALICRU

Once the registration process is complete, access the application by entering the credentials that have been de- fined by pressing the “Login” button. If the email address or password entered is incorrect, thefollowing error message will be displayed at the bottom of the screen:

If you have forgotten your password, click on "Recover password?" to open the following screen:

Enter the email address with which the plant was registered. A message with the sender “[e-mail]” and the subject “Equinox– Reset password” will be sent to that email address.

The message will include a6-digit “Token” code. Enter the code on the code verification screen and press submit.

A screen will appear to enter anew password. You need to enter it twice. Press the "Save" button when finished. Save

The following confirmation message will be displayed:

7.4.2. Configuration of the installation (plant) in the

EQX-sun application. When the credentials are entered and the account is accessed, the main panel “My Plants” appears. The plants being created will appear in this panel. To create aplant, press the “add” button ( + ) to the right of “Myplants”. The “Plant Creation” panel will appear. All required fields must be completed. Below is afull example for aplant located in asecond residence in the Pyrenees:67

If the photovoltaic installation is made up of 10panels of 440 W each, the power of the solar fieldwill be 440 x 10 = 4,400 Wp = 4.4 kWp. You have to enter the price per kWh consumed from the grid. For example, the retailer in this example charges aprice of 0.14721 €/kWh. The price at which the retailer compensates for the kWh discharged into the grid must be entered. For example, the retailer in this example compensates it at aprice of 0.0537 €/kWh. Euros (€) Fig. 40. Creating the plant. Once all the values have been entered, press the "Create plant" button. Next, the app will indicate that the plant has been successfully created by means of amessage at the bottom and anew header will appear in the "My plants" panel:

7.4.3. "12h" Monitoring (Day).

This monitoring mode only works during the hours of solar irradiance in which the inverter is running. While the inverter is off, the app will not receive generation or consumption data. To monitor consumption data, the CT transformer must be installed and connected as indicated in section 5.5.1 and the inverter must have the following parameters configured:

• General Settings → Power Limit → make sure it is set to “ON” option. This parameter activates the reading of the transformer CT. Without this parameter activated, even if the CT is connected, the inverter will not read its signals.

• General configuration → Export → Change from 100% to 0%, so as not to spill the surplus to the network. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL68 SALICRU

7.4.3.1. Electrical diagram of the installation.

Make sure that the installation is as shown on the diagram in

The inverter must be powered through the solar field at all times throughout the entire process. Click on the plant that has been created to access its details: For the time being, only the power of the solar field that has been entered will be displayed because the measurement instruments are not yet connected; this will be shown with the “Devices offline” message on the top of the synoptic chart. The ESM1 EQX network analyser is already physically connected to the 485/WiFi 24H EQX communication module, so it will only be necessary to link the latter. Add a device to the plant that has been created: press the “properties” button [ ], to the right of the plant title.69

In the drop-down menu, click on the “Devices” button. The “Devices” panel will appear. The devices assigned to the plant will appear in this panel. To add the device (485/WiFi EQX2) communication module to the plant, press the “add” button [ + ] to the right of “Devices”. Next, select the 485/WiFi EQX2 device to start the pairing process. The pairing process has 3 steps:

1. Connect the dongle:

a. Make sure that the dongle is plugged into the unit's USBport. b. Press the "Next" button.

You must link the inverter's serial number to add the unit to theplant. a. Press the "Scan" button. The smartphone or tablet may request permis- sion to use the camera. Permission is required. b. Move the camera closer to the barcode that appears on the inverter label. When the code is detected, the scanner will close and the serial number will be written automati- cally. Check that the serial number corresponds to the one on the label. Fig. 41. Example of abarcode identification label. EQX2 SOLAR INV ERTERS CONNECTED TO THE GRIDUSER MANUAL70 SALICRU If you do not have acamera or it does not detect the bar- code correctly, type the serial number marked with ared box in the indicated field. c. Press the "Next" button. When adding the device, two situations can occur: 1 : The device is added successfully. This is indicated with the following message: 2: The device you are trying to add is already registered. This is indicated with the following message:

3. Device connection.

Once the dongle has been paired to the corresponding plant, youhave to configure the WiFi network of the installation to which it has to connect to access the server and update the application data. Follow the steps shown in the application or in the annex (section 11) of this manual.71

7.4.4. "24h" monitoring. (Day and night).

Theoptional devices 6B2OP000014 (485/WiFi 24H EQX2) and 6B2OP000008 (ESM1 EQX2) are required. Unlike the previous mode, this monitoring mode can also be used to monitor the consumption of the installation if the inverter is not running and/or at night. For more information, refer to the "EL18700" manual.

7.4.5. Operation of the EQX-sun application.

7.4.5.1. Home screen “My Plants”.

The EQX-sun application organises the different installations under the name “Plants”. In the example of section 8 “Installation configuration (plant) in the EQX-sun application” aplant called “Chalet Pirineos” has been created. If other installations are created in the future, they will appear in the list in alphabetical order. Information provided by the plant header: Plant name. Plant location. Today's production. The date and time of the last data update. The update period is 1 minute. Degree of autarchy: defines the independence of the installation from the grid, dividing the self-consumed energy and the total energy demanded by the consumer. Greater degree of autarchy= greater independence from the grid. Degree of self-consumption: defines the degree of use of the photovoltaic plant by the installation, dividing the self-consumed energy and the generated photovoltaic energy. Greater degree of self-consumption = greater use of the photovoltaic energy generated. Type of plant: Residential, commercial or industrial EQX2 SOL AR INVERTERS CONNECTED TO THE GRIDUSER MANUAL72 SALICRU

7.4.6. Individual plant screen.

Each plant has three tabs at the top: “Real time”, “Historical” and “Info”.

1. Information shown in the “Real Time” tab:

This tab is divided into 4 sections: synoptic, generation, consumption and daily savings by generation. The synoptic chart offers a very visual approximation of the current state of the plant: the movement of the lines indicates the direction of energy flow, and its colour indicates whether it comes from the grid (red), from the panels (green), or acombination of both (blue). In this example of acommercial installation with an installed power of 10 kWp, 8 kW are being consumed, of which 5.19kW are self-consumed, while the remaining 2.81 kW are consumed from the grid. The example shown below refers to an industrial installation with an installed power of 3 kWp; 0.69 kW (687 W) are being consumed, of which 2.74 kW are being generated by the inverter, so the remaining 2.05 kW is inject into the grid as excess power: If there is no consumption, the synoptic chart would show this as follows: The Generation section shows the "Today", "Current month" and "Total" data (since the plant was registered). Theinfor- mation has the same format in all tabs. In this example, 1.8 MWh have been generated this month, of which 1.7 MWh have been self-consumed, while the remaining 100 kWh have been exported or injected into thegrid. The "Consumption" section shows the "Today", "Current month" and "Total" data (since the plant was registered). Theinformation has the same format in all tabs. In this example, of today's total consumption (100%),

9.77 kWh (29.74%) have been self-consumed while

23.08kWh (70.26%) have been imported from the grid. The "Daily savings by generation" section shows an estimate of the savings obtained by self-consumption, the amount resulting from multiplying the self-consumed energy by the amount of compensation per kWh injected into the grid.73

This tab is divided into 4 sections:“Plant performance”, “Comparison of generated energy”, “Economic savings” and “Environmental impact”. The "Plant Performance" section shows the "Today", "Day" and "Month" information. The "Today" tab shows achart with the real- time instantaneous generation, consumption and self-consumption values, while the "Day" tab shows the sum of the instantaneous values of the previous chart. The "Month" tab shows the total values of the previous days. The colour key of the chart follows the same pattern, as the synoptic chart: Red shows the energy consumed from the grid. Green shows the energy generated by the photovoltaic panels. Blue shows the self-consumption: the consumption of energy generated from the photovoltaic panels instead of from the grid. You can enlarge specific areas on the chart by pinching the screen with two fingers and spreading them out. Close them back again to return to the original image. The different charts can be hidden or displayed by clicking on the “Generation”, “Consumption” and “Self-consumption” buttons. The data in "Comparison of generated energy" can be grouped by months or years. This example shows the monthly production of aplant created in the month of May 2018 and the production until the current month, which is supposed to be August 2020. Comparing months of different years can be very useful to detect problems in aphotovoltaic installation, or even to have an idea of the degradation of the panels. The “Economic savings” section shows charts with the approximate values of “Savings per generation” (amount obtained by multiplying the generation by the price of kWh consumed) and “Simplified compensation” (amount obtained by multiplying the generation injected into the multiplied by the price of kWh injected). The savings in terms of CO2 emissions and their equivalence in number of trees planted can be seen in the "Environmental impact" section. In aconventional installation, each kWh generated using fossil fuels generates greenhouse gas emissions. These gases are classified as gases with a"carbon footprint" and they are converted into an equivalent in carbon dioxide (CO2). Therefore, the value shown is the amount of CO2 emissions that an equivalent fossil fuel system would have generated to produce the energy that the system (plant) has generated with renewable energy. Moreover, trees absorb CO2 and this is why they are used in many different reforestation projects worldwide to counteract CO2 levels. By using renewable energy sources, the level of CO2 that trees have to absorb is reduced. The number of trees displayed would be equivalent to the new trees that would need to be planted.

3. Information shown in the “Info” tab:

This tab shows the plant information with the values with which it was created. Any field can be modified by pressing the “properties” button [ ], to the right of the plant title and then, in the drop-down menu, by clicking the “Edit” button. When the retailer changes its electricity rates, the price per kWh must also be edited, for example. EQX2 SOLAR INVERTERS CONNECTED TO THE GRIDUSER MANUAL74 SALICRU

8. TROUBLESHOOTING GUIDE.

8.1. ERROR MESSAGES. The single-phase inverter of the EQX2 series has been designed in compliance with the applicable grid operation standards and complies with the corresponding safety and EMC requirements. The inverter has gone through aseries of rigorous tests to ensure its sustainable and reliable operation before shipment. When afault occurs, the corresponding error message will be displayed on the OLED screen, and the inverter may, in this case, stop injecting power into the grid. The error messages and their corresponding troubleshooting methods are listed below: Error message Description Solution No display No image on the display - Check that all cables are firmly connected and that the DC switch is turned on. - Check that the input voltage coincides with the working voltage. Network lost or not detected Grid fault, AC switch or circuit disconnected. - Check that there has been agrid fault. - Check that the AC thermal-magnetic circuit breaker switches are up and that the terminals are correctly connected. Grid voltage fault Overvoltage or undervoltage, mains voltage higher or lower than the set protection value. - Check that the safety regulation setting is correct. - Check the grid voltage. If the grid voltage exceeds the permitted range of inverter protection parameters, contact the local power company. - Check whether the impedance of the AC cable is too high. Replace the cable with athicker one if this is the case. Grid frequency fault Excessively high or low grid frequency with regards to the protection threshold set forth. - Check whether the safety rule settings are correct or not. - Check the grid frequency.If it exceeds the permitted range of inverter protection parameters, contact the local power company. Regarding the ISO limits Low system insulation resistance, usually due to poor module/ cable insulation to earth or in rainy and humid environments. - Check if the photovoltaic panels, cables and connectors are broken or there are water leaks. - Check if there is areliable earthing connection. CFGI error Excessive leakage current. - Excessively high earth current. - Check the photovoltaic cable to see if it is short-circuited to earth. Photovoltaic overvoltage The voltage of the photovoltaic system is excessively high. - The input voltage is excessively high. - Reduce the number of photovoltaic panels to ensure that the open-circuit voltage of each string is less than the maximum input voltage allowed. Excessive inverter temperature The temperature inside the inverter is excessively high and out of the safe range. - Check if the inverter is exposed to direct sunlight. - Reduce the ambient temperature. Error message Description Solution DCI error Excessively high DC injection. The inverter detects ahigh DC component on the AC output. - Restart the inverter; wait afew seconds until it is restored back to normal. - If the fault occurs several times, please contact SALICRU. Bus voltage error Excessively high bus voltage. ICS error Internal communication error, possibly due to astrong external magnetic field, etc. SPI error E2 error Error in the GFCI device Anomaly in the GFCI device. AC transducer error Anomaly in the AC transducer. Relay test failed Relay self-test failure. Neutral and earth are not connected properly on the AC side or simply fail. - Use amultimeter to check if the voltage ishigh (it should be less than 10 V) between N and PE on the AC side. If the voltage is higher than 10 V, the neutral and earth are not well connected on the AC side. Alternatively, restart the inverter. - If neutral and earth are connected properly, contact SALICRU. Flash memory error Error in the internal storage, possibly due to astrong external magnetic field, etc. - Restart the inverter; wait afew seconds until it is restored back to normal. - If the fault occurs several times, please contact SALICRU. External fan failure Anomaly in the external fan. - Stop the inverter and disconnect theAC+DC cables. - Check if the fan is being blocked by unwanted objects. If not, replace it. Internal fan failure Anomaly in the internal fan. - Restart the inverter; wait afew seconds until it is restored back to normal. - If the fault occurs several times, please contact SALICRU. Tab. 13. Error messages. The red LED will be lit on the display for all error messages (see Tab. 5 ).75

8.2. TROUBLESHOOTING. Problem Solution The inverter is powered correctly but it does not start and the message "Waiting" appears on the display while the green LED flashes. To start the inverter, in addition to receiving voltage on the panels, it needs to be connected to the grid to synchronise with it and ensure that it does not work in the "island" mode. Check that there is voltage on the terminals of the circuit breakers that power the inverter protection panel. If the circuit breakers on the AC protection panel are activated correctly, there might be another circuit breaker upstream that needs to be activated. Zero injection is activated and the inverter does not generate power, even though the installation has load. The CT may be wired incorrectly. The CT arrow must be in the direction of the installation towards the grid (connection side). Read section "6.5.3. Installing the CT.". The red LED is flashing, but the inverter is working properly. The inverter only indicates that it does not detect the WiFi antenna. However, the inverter is working properly. At night, no data appears in the EQX-sun application. The inverter is powered by the solar panels. Therefore, if the solar irradiance is not high enough for the inverter to start, it will not be able to power the WiFi antenna to send the data required to update the application. In order to monitor the installation 24 hours a day, it is necessary to install the optional devices 6B2OP000007 (485/WiFi 24H EQX) and 6B2OP000008 (ESM1 EQX). I do not wish to connect the inverter to the WiFi network. Would this pose aproblem? The inverter will work perfectly, since it does not need to be connected to the Internet. In addition, the most relevant generation data are shown on the unit's display. The WiFi antenna is only used to provide installation data to the user as ameans of providing additional information and to manage and control the system more easily. Tab. 14. Troubleshooting. 8.3. MAINTENANCE. Danger Risk of causing damage to the inverter or personal injury due toimproper use. Before using the inverter, observe the following procedure: - Lower the AC thermal-magnetic circuit breaker and the inverter DC switch. - Wait at least 5 minutes for the internal capacitors to be fully discharged. - Check that there is no voltage or current before removing aconnector. Warning Keep all unqualified staff far from these areas! A temporary warning sign or barrier should be posted to keep unqualified persons away while performing electrical connection and service work. Attention Restart the inverter only after removing the fault that affects safety. Never replace internal components at random. Please contact SALICRU for support regarding the maintenance tasks. Otherwise, SALICRU shall not be held liable for any damage caused. Note Perform the maintenance tasks on the unit as described in the manual and always using the corresponding tools, test equipment, or the latest version of the manual. Items Methods Period Cleaning the system - Check the temperature and dust accumulated in the inverter. - Clean the inverter housing, ifneeded. - Check whether air is coming in and out of the unit normally or not. - Clean the air inlet and outlet, ifneeded. Six months to ayear, depending on the amount of dust in the air, Tab. 15. Maintenance tasks. EQX2 SOL AR INVERTERS CONNECTED TO THE GRIDUSER MANUAL76 SALICRU

The WiFi module must configured in the router during the first installation process. If the name or password of the router is changed, the WiFi password must be configured again.

1. WiFi module setup.

a. Start the inverter. b. Prepare alaptop computer or smartphone and activate the WLAN/WiFi connection. c. Go to screen 10.2.2 SSID to identify the WiFi network name of the Inverter. d. On the laptop or smartphone, search for the WiFi with the name "WiFi-AP********" and select it to connect.

4. Click on "STA Setting" to open the Interface Wi-Fi setup. If this

is the first time entering the system, the screen on Fig. 32 will be shown. Fig. 44. WiFi setup interface. However, if it has been previously configured, the screen shown in Fig. 33 will appear. Click on "Scan" to display alist of available WiFi networks. SSID_router_installation Fig. 45. WiFi setup interface.

5. Select the desired WiFi and click on "OK". It only supports

6. Next, apop-up message will appear to remind you to enter the

WiFi password, click on "Accept". See Fig. 45. Fig. 47. Password reminder screen.

7. Enter the password in the blank box and click on "Save".

SeeFig. 46. SSID_router_installation Fig. 48. Save password screen.

8. The system will show the message "Saved Successfully".

Clickon "Restart" to complete the WiFi setup. See Fig. 47. Fig. 49. WiFi setup saved.

9. Once the setup is complete, the WiFi ON indicator on the