Autarco LQH Series Installation And Operation Manual
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Autarco LQH Series Installation And Operation Manual

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LQH-series
Installation and
Operation Manual
1
Hybrid Solar Inverters
Hybrid Solar Inverters
IM-S2.LQH-EN-V1.2
IM-S2.LQH-EN-V1.2

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  • Page 1 Hybrid Solar Inverters Hybrid Solar Inverters LQH-series Installation and Operation Manual IM-S2.LQH-EN-V1.2 IM-S2.LQH-EN-V1.2...
  • Page 2 Keep this manual for future info@autarco.com reference. www.autarco.com Product information is subject to change without notice. All trademarks are Address recognized as the property of their respective owners. Torenallee 20 5617 BC Eindhoven © Autarco Group B.V. The Netherlands All rights reserved. IM-S2.LQH-EN-V1.2 IM-S2.LQH-EN-V1.2...
  • Page 3 Parallel system 3.3.3 System with a generator 3.3.4 System with an 3rd part on-grid inverter (AC coupled) 3.3.5 System with an Autarco on-grid inverter (paralleled) / feature coming soon Intelligent LED indicators Password Reset Mounting Safety Appropriate Mounting Location Mounting instructions Safety clearance IM-S2.LQH-EN-V1.2...
  • Page 4 Tables of contents Hybrid Solar Inverters Mounting procedure Installation Grounding DC connections Battery connection AC connection 5.4.1 AC Grid & Backup port connection Smart Meter installation Communication cable assembly 5.6.1 Communication Port Definition 5.6.2 BMS Port connection 5.6.3 Meter Port connection 5.6.4 DRM Port Connection (Optional) 5.6.5...

  • Page 5: Table Of Contents

    Tables of contents Hybrid Solar Inverters 6.5.4 Reserve or Backup mode 6.5.5 Grid Trading Schedule (Time of Use) Temperature derating 6.5.6 Maintenance Disposal Troubleshooting Product specifications IM-S2.LQH-EN-V1.2...

  • Page 6: Read This First

    HOT SURFACE! Indicates safety instructions, which if not correctly followed, could result in burns. Target Audience This manual is intended for anyone who is using Autarco LQH series inverters. Before any further action, the operators must first read all safety regulations and be aware of the potential danger to operate high-voltage devices.

  • Page 7: Product Versions Covered By This Document

    Product versions covered Hybrid Solar Inverters by this document The main purpose of this user manual is to provide instructions and detailed procedures for installing, operating, maintaining, and troubleshooting the LQHseries of Autarco inverters which includes the following models: • S2.LQH12000 •...

  • Page 8: Safety Instructions

    Operator must put on the technicians’ gloves during the whole process in case of any electrical hazards. Please refer to the specification of the battery before configuration. Any unauthorized actions including modification of product functionality of any form will affect the validation of warranty service; Autarco may deny the obligation of warranty service accordingly. IM-S2.LQH-EN-V1.2...

  • Page 9: Package Contents

    Package contents Hybrid Solar Inverters Please ensure that the following items are included in the packaging with your machine: x4 Expansion 1x Inverter 1x Back Plate 4x Fixing Screws(M4*12) bolts(M10*70) 4x PV Connector 1x CAN cable 3X CT 1x Dust Cover 6x RJ45 connector 1 x Bluetooth Antenna 1 x Eastron Meter + meter...

  • Page 10: Tools Required For Installation

    Torque Screwdriver MC4 Crimping Tool Internal DC switch Your Autarco LQH series inverter is equipped with an internal DC switch. This switch can be found on the left side of the inverter. Notice of Use The inverter has been constructed according to the applicable safety and technical guidelines.

  • Page 11: Explanations Of Symbols On Inverter

    Notice of disposal Hybrid Solar Inverters This product shall not be disposed of with household waste. They should be segregated and brought to an appropriate collection point to enable recycling and avoid potential impacts on the environment and human health. Local rules in waste management shall be respected.

  • Page 12: Product Information

    Hybrid Solar Inverters Overview Autarco LQH series hybrid inverters are state of the art, high efficiency, robust and reliable inverters. They are easy to install and carry a standard 5-year product warranty, extendable up to 15 years. Our rigorous quality control and testing facilities guarantee Autarco inverters meet the highest quality standards possible.

  • Page 13: Single System

    Hybrid Solar Inverters Single system 3.3.1 The single system consists of PV module, battery, hybrid inverter, CT and smart meter. The PV Module converts solar energy into electric energy, which is then converted by the inverter to • charge the battery •...

  • Page 14: Parallel System

    Hybrid Solar Inverters Parallel system 3.3.2 User can add inverters and batteries to increase capacity. The system supports up to 6 inverters in parallel. Each battery connects to the inverter with an independent CAN line and is managed by the inverter connected to it. 3.2 Connection schematic overview of parallel system •...
  • Page 15 Hybrid Solar Inverters System with a generator 3.3.3 The access of Diesel Generator is in the off-grid scenario. When the battery power is below a set value and a power outage occurs in the grid, the system will start the generator to power the load and charge the battery.
  • Page 16 3.3.4 Generally, the access of on-grid inverter is for the retrofit of a existing PV plant. The LQH inverter supports access of both Autarco on-grid inverter and third-party on-grid inverters. 3.5 Connection schematics of a system with another on-grid inverter...
  • Page 17 Autarco on-grid inverter and third-party on-grid inverters. 3.6 Connection schematics of a system with another on-grid inverter (paralleled) PELD Note An Autarco on-grid inverter can be connected with the hybrid inverter in parallel . To achieve feed- in limitation, it is necessary to add PELD. IM-S2.LQH-EN-V1.2...

  • Page 18: Password Reset

    Intelligent LED indicators Hybrid Solar Inverters There are five indicators on the Autarco LQH Series Hybrid Inverter (Battery, Power, WiFi, RS485 and Bluetooth) which indicate the working status of the inverter. The Bluetooth Antenna or WiFi datalogger shall be installed on the Antenna/COM port of the hybrid inverter before local debugging.
  • Page 19 Mounting Hybrid Solar Inverters Safety DANGER! Do not install the inverter near flammable or explosive items. WARNING! The installation must be performed by qualified personnel and in compliance with national and local standards and regulations. This inverter will be connected to a high voltage DC power generator and AC grid. Inappropriate installation may also jeopardize the life span of the inverter.

  • Page 20: Mounting Instructions

    Mounting instructions Hybrid Solar Inverters ATTENTION! Two people are required to remove the inverter from the carton and install the inverter. • The inverter is suitable for outdoor and indoor installation. • Adequate ventilation must be provided. • Nothing shall be stored on or placed against the inverter. 4.1 Recommended Installation locations 4.2 Vertical installation is recommended, with a maximum inclination of 15°...

  • Page 21: Safety Clearance

    Safety clearance Hybrid Solar Inverters CAUTION! Make sure heat sinks are out of reach of children. WARNING! When installing multiple inverters, make sure there is sufficient clearance between them. High temperatures may affect performance. Make sure inverter controls are reachable in case of emergency.

  • Page 22: Installation

    WARNING! No matter what kind of grounding connection is adopted, it is strictly forbidden to connect the ground of the inverter with the lightning protection of a building, otherwise Autarco will not be responsible for any damage caused by lightning.
  • Page 23 Hybrid Solar Inverters IMPORTANT! After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire. Step 5 Remove the screw from the heat sink ground point. Step 6 Use the screw of the ground point to attach the grounding cable (as shown as in Figure 5.3). Tighten the screw securely.
  • Page 24 Hybrid Solar Inverters CAUTION! If DC inputs are accidently reversed or inverter is faulty or not working properly, it is NOT allowed to turn off the DC switch. Otherwise, it may cause DC arc and damage the inverter or even lead to a fire disaster.

  • Page 25: Battery Connection

    Hybrid Solar Inverters DANGER! Do not connect the strings with an open circuit voltage greater than the Max DC voltage of the inverter. DANGER! For protection against electric shock, MC4 connectors must be isolated from the PV array while being assembled or disassembled. DC connections must not be unplugged while under load.
  • Page 26 Hybrid Solar Inverters Step 2 The battery cables shall be connected to the respective BAT terminals: BAT+ and BAT- (see Figure 5.5). Step 3 Run the cables into the wire box. Strip 13mm off the ends of each cable. Step 4 Crimp the R-type connectors onto the cables. Do not over crimp the connectors. Step 5 Remove the terminal bolts and then insert them through the connector holes Step 6 Put each bolt back into the proper place, be sure to not reverse the polarity.
  • Page 27 Hybrid Solar Inverters Inside the inverter wire box ‘’x-U’, ‘’x-V’’, ‘’x-W’’, ‘’x-N’’ and ‘’x-PE’’ are printed next to the port for each port “x” can be “GEN”, “BK” or “GRID” indicating the connection ports to generator, back-up and grid respectively. The 3 live wires are connected to x-U, x-V and x-W terminals respectively. The ground wire connects to x-PE.

  • Page 28: Smart Meter Installation

    Hybrid Solar Inverters Smart Meter installation Autarco’s LQH series hybrid inverter must be connected with the supplied Eastron meters to fulfill the control logic of the self-consumption mode, export power control, monitoring, etc. An Eastron 3ph meter (With CT): SDM630MCT is provided as default in the inverter box.
  • Page 29 Hybrid Solar Inverters Please install the CT on the phase lines at the system grid connection point and the arrow on the CT needs to point to the grid direction. Lead the CT wires through the CT port at the bottom of the inverter and connect the CT wires to the 6 pin communication terminal block.
  • Page 30 Communication cable assembly Hybrid Solar Inverters The Autarco LQH series inverter uses RS485 cable to communicate with the Meter and the CAN-bus to communicate with the battery’s Battery Management System (BMS). NOTE! The CAN cable enables the communication between the inverter and the LFP battery, please check for latest model compatibility before installation.
  • Page 31 Hybrid Solar Inverters NOTE! The 4- hole fastening rings inside the cable gland are with openings on the side. Please separate the gap with hand and squeeze the cables into the holes from the side openings. 5.6.2 Communication Port Definition 5.21 Communication ports 5.22 Communication ports Port...
  • Page 32 Hybrid Solar Inverters 5.6.3 BMS Port connection Take out the pre-made CAN cable from the package and connect one end to battery CAN port and then connect another end to the inverter BMS port. Cable Length: 3 meters. 5.23 Pre-made BMS cable in Inverter package (cable Length: 3 meters) NOTE! Pin definition of the BMS Port is as follows: EIA/TIA 568B.
  • Page 33 Pin 3: Reserved; Pin 4: Reserved Pin 5: Switch_input1; Pin 6: Switch_input2 Switch_input1 Switch_input2 Pin 7: Reserved; Pin 8: Reserved DRM (logic interface) NOTE! To use this function, please contact Autarco if this function is supported in your country. IM-S2.LQH-EN-V1.2...
  • Page 34 If a 3rd party external device or controller needs to communicate with the inverter, the RS485 port can be used. Modbus RTU protocol is supported by Autarco inverters. To acquire latest protocol document, please contact Autarco local service or Autarco sales team.
  • Page 35 Parallel System Wiring Hybrid Solar Inverters 5.28 Parallel system wiring Inverter 1 (Master) Battery Inverter 2 (Slave) Battery Inverter 3 (Slave) Battery Grid Backup Load IM-S2.LQH-EN-V1.2...
  • Page 36 12-pin communication Hybrid Solar Inverters terminal block The LQH series is equipped with a 12-pin communication port which can be used for communication with a heat pump, generator or ATS. 5.8.1 Heat Pump Control Signal Connection 5.8.1 Heat pump connection 5.8.2...
  • Page 37 For connection instructions, please refer to the respective Autarco Monitoring Device installation manuals. The USB type COM port at the bottom of the inverter can connect to Autarco’s USB data loggers to realize the remote monitoring via MyAutarco. Please see below, list of compatible Autarco data loggers compatible with this device: •...
  • Page 38 Hybrid Solar Inverters 5.27 Inverter wireless communication function IM-S2.LQH-EN-V1.2...

  • Page 39: Commissioning & Configuration

    Commissioning & Configuration Hybrid Solar Inverters Preparation & Commissioning ATTENTION! Autarco’s installer app is mandatory for installing your LQH inverter! Before switching on the inverter, please make sure that: • You have downloaded and installed Autarco’s Installer App. • The device is accessible for safe operation, maintenance, and service.

  • Page 40: Monitoring Setup

    Visit www.autarco.com to download the latest version of our app. • You can search “Autarco” in Google Play or Apple App Store to find the latest version of our app. • You may scan the QR code below to download the Installer App.
  • Page 41 Autarco app will display the inverter model selected in Helios during project design. Step 5 Select the monitoring stick connected to the inverter and scan its QR code to retrieve the serial number. Monitoring can be setup via 4G / WIFI / LAN. Please follow Autarco’s monitoring stick manuals for further instructions.
  • Page 42 Hybrid Solar Inverters ATTENTION! To continue inverter configuration, you must - • Ensure a compatible Autarco monitoring stick is connected to the inverter’s COM port. • Ensure a reliable WIFI / LAN / 4G network is present. Step 6 Once the monitoring device is connected, you may click “Next” and “Save setup”.

  • Page 43: Inverter Configuration

    Inverter Configuration Hybrid Solar Inverters You can view inverter details in the app. Press “Set up inverter” to configure it for the first time. Step 1 Configure the Date and Time for your inverter. You may at any point retrieve the inverter’s current settings.
  • Page 44 Hybrid Solar Inverters Step 3 Select the right “Meter type” & “Meter function” for your installation. Selection must be based on the meter type you are actually connecting to the inverter. If there is no meter connected at this moment, please select “No meter” to avoid alarms. We suggest to select “Meter in grid”...
  • Page 45 Hybrid Solar Inverters Step 5a Turn on and use “Grid trading schedule” if manual control of battery charging and discharging is required with respect to time. Set the charge and discharge current (A) for your battery. You may set up to 3 time slots in the grid trading schedule by pressing “Add time slot”. Step 5b “Allow charge from grid”...

  • Page 46: Operating Modes

    Operating modes Hybrid Solar Inverters As seen in Section 6.3, the inverter can operate in various operational logics, suiting individual needs. ATTENTION! Symbols depict “Power consumption” priority. 6.5.1 Self-use mode This mode stores excess PV power into the battery. If the battery is charged, or there is no battery, the excess PV power will be exported back to the grid/utility company.

  • Page 47: Reserve Or Backup Mode

    Hybrid Solar Inverters 6.2 Grid trading mode priority 6.5.3 Off-grid mode Off-grid mode must only be used by systems that are not electrically connected to the grid at all. This mode is almost like Self-Use Mode, but the PV power will be curtailed if the battery is sufficiently charged, and the domestic load demand is lower than the amount of available PV power.

  • Page 48: Grid Trading Schedule (Time Of Use)

    Hybrid Solar Inverters 6.5.5 Grid Trading Schedule (Time of Use) Grid Trading Schedule is used to customize when and by how much the battery may be allowed to charge or discharge. If the grid trading schedule is turned on, the inverter will only follow this schedule to determine when to charge or discharge the battery.

  • Page 49: Battery Settings

    Hybrid Solar Inverters 6.5.6 Battery settings The battery section of the app offers numerous options to customize the interaction between the inverter and the battery. Here, we provide explanations for the functions and features available in this section, allowing users to tailor the inverter’s behavior to their specific preferences and requirements.

  • Page 50: Temperature Derating

    CAUTION! Never use any solvents, abrasives, or corrosive materials to clean the inverter. The LQH series inverters require general maintenance to be performed once per year. Impurities such as dust and dirt accumulation on the heat sink may negatively affect the inverter’s ability to dissipate heat.

  • Page 51: Troubleshooting

    Troubleshooting Hybrid Solar Inverters Message Name Information Description Troubleshooting Suggestion Control device to shutdown Turn on the device in the ON/OFF Setting. LmtByEPM The device's output is under - Confirm whether the inverter is connected to an external EPM/meter to prevent controlled reverse current.
  • Page 52 Hybrid Solar Inverters Message Name Information Description Troubleshooting Suggestion Over-Load Load overload fault Backup load power is too large, or some inductive load startup power is too large, need to remove some backup load, or remove the inductive load on the backup. BatName-FAIL Wrong battery brand selection Confirm whether the battery model selection is consistent with the actual one.
  • Page 53 NOTE! If the inverter displays any alarm message as listed above: please turn off the inverter and wait 5 minutes before restarting it. If the fault persists, contact your installer or Autarco. Before contacting us, please have the following information available: •...

  • Page 54: Product Specifications

    Product specifications Hybrid Solar Inverters Technical Data S2.LQH12000 S2.LQH15000 Input DC (PV side) Recommended max. PV power 19200W 24000W Max. input voltage 1000V Rated voltage 600V Start-up voltage 160V MPPT voltage range 200-850V Full load MPPT voltage range 200-850V Max. input current 20A/20A Max.
  • Page 55 Hybrid Solar Inverters Protection Anti-islanding protection Output over voltage protection Insulation resistance monitoring Residual current detection Output over current protection Short circuit protection Integrated AFCI (DC arc-fault circuit protection) Integrated DC switch DC reverse polarity protection PV overvoltage protection Battery reverse protection General data Dimensions(W/H/D) 563*546*235mm...
  • Page 56 Hybrid Solar Inverters Technical Data S2.LQH20000 Input DC (PV side) Recommended max. PV power 32000W Max. input voltage 1000V Rated voltage 600V Start-up voltage 160V MPPT voltage range 200-850V Full load MPPT voltage range 200-850V Max. input current 20A/20A Max. short circuit current 30A/30A MPPT number/Max input strings number Max input power per MPPT...
  • Page 57 Hybrid Solar Inverters Technical Data S2.LQH20000 Protection Anti-islanding protection AFCI Insulation Resistor detection Residual current monitoring unit Output over current protection Output short protection Output over voltage protection DC switch DC reverse polarity protection PV overvoltage protection Battery reverse protection General data Dimensions(W/H/D) 563*546*235mm...
  • Page 58 Hybrid Solar Inverters Scan the QR Code to download Autarco’s Installer app! IM-S2.LQH-EN-V1.2...

This manual is also suitable for:

S2.lqh12000S2.lqh15000S2.lqh20000

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