Istore IS-INV-29900-3PH User Manual
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Istore IS-INV-29900-3PH User Manual

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Inverter 29900/40000 3 Phase
User Manual
Issue
01
Date
2023/30/08
Copyright © 2023 iStore tm

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Summary of Contents for Istore IS-INV-29900-3PH

  • Page 1 Inverter 29900/40000 3 Phase User Manual Issue Date 2023/30/08 Copyright © 2023 iStore tm...

  • Page 3: About This Document

    This document describes the IS-INV-29900-3PH and IS-INV-40000-3PH (also referred to as ISTORE) in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting. Before installing and operating the ISTORE, ensure that you are familiar with the features, functions, and safety precautions provided in this document.
  • Page 4 IS-INV-29900/40000-3PH PV INVERTER User Manual About This Document Change History Changes between document issues are cumulative. The latest document issue contains all changes made in earlier issues. Issue 01 (2023-07-30) This issue is the first official release. Issue 01 (2023-07-30)

  • Page 5: Table Of Contents

    4 Installation ..........................20 4.1 Checking Before Installation ..........................20 4.2 Tool Preparation ..............................21 4.3 Selecting an Installation Position ..........................22 4.4 Moving the ISTORE .............................26 4.5 Installing the Mounting Bracket ..........................27 4.5.1 Support-mounted Installation ..........................28 4.5.2 Wall-mounted Installation ..........................29 4.6 Installing an ISTORE ............................30 5 Electrical Connections ......................
  • Page 6 5.7 Connecting the Signal Cable ..........................50 5.7.1 Communication Modes ............................52 5.7.2 (Optional) Connecting the RS485 Communications Cable to the ISTORE ............52 5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter ............53 5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable .................54 5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable ...................55...

  • Page 7: Safety Information

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Safety Information Statement Before transporting, storing, installing, operating, using, and/or maintaining the equipment, read this document, strictly follow the instructions provided herein, and follow all the safety instructions on the equipment and in this document. In this document, "equipment"...

  • Page 8: Personal Safety

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information You fail to follow the operation instructions and safety precautions on the product and in  the document. You remove or modify the product or modify the software code without authorization. ...
  • Page 9 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Figure 1-1 Personal protective equipment General Requirements Do not stop protective devices. Pay attention to the warnings, cautions, and related  precautionary measures in this document and on the equipment. If there is a likelihood of personal injury or equipment damage during operations, ...

  • Page 10: Electrical Safety

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Only qualified professionals or trained personnel are allowed to install, operate, and  maintain the equipment. Only qualified professionals are allowed to remove safety facilities and inspect the  equipment. Personnel who will perform special tasks such as electrical operations, working at ...
  • Page 11 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Obtain approval from the national or local electric utility company before connecting the  equipment to the grid. Observe the power plant safety regulations, such as the operation and work ticket ...

  • Page 12: Environment Requirements

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Cabling Requirements When selecting, installing, and routing cables, follow local safety regulations and rules.  When routing power cables, ensure that there is no coiling or twisting. Do not join or ...
  • Page 13 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Install the equipment in an area far away from liquids. Do not install it under areas prone to condensation, such as under water pipes and air exhaust vents, or areas prone to water leakage, such as air conditioner vents, ventilation vents, or feeder windows of the equipment room.

  • Page 14: Mechanical Safety

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information When installing the equipment, ensure that the installation surface is solid enough to bear  the weight of the equipment. After installing the equipment, remove the packing materials such as cartons, foam, ...
  • Page 15 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information If two persons or more move a heavy object together, ensure that the object is lifted and  landed simultaneously and moved at a uniform pace under the supervision of one person. Wear personal protective gears such as protective gloves and shoes when manually ...
  • Page 16 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information If a single ladder is used, ensure that the wider end of the ladder is at the bottom, and  take protective measures to prevent the ladder from sliding. If a single ladder is used, do not climb higher than the fourth rung of the ladder from the ...
  • Page 17 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 1 Safety Information Drilling Holes Obtain consent from the customer and contractor before drilling holes.  Wear protective equipment such as safety goggles and protective gloves when drilling  holes. To avoid short circuits or other risks, do not drill holes into buried pipes or cables. ...

  • Page 18: Overview

    Overview 2.1 Product Introduction Function The ISTORE inverter is a three-phase grid-tied PV string inverter that converts the DC power generated by PV strings into AC power and feeds the power into the power grid. Model This document covers the following ISTORE models: IS-INV-29900-3PH ...
  • Page 19 User Manual 2 Overview Networking Application The ISTORE applies to the grid-tied systems of industrial and commercial rooftops and small ground PV plants. Typically, a grid-tied system consists of PV strings, grid-tied inverters, AC switches, and power distribution units. Figure 2-1 Networking application - single inverter scenario...

  • Page 20: Appearance

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 2 Overview 2.2 Appearance Figure 2-3 Appearance (1) LED indicator (2) Front panel (3) Heat sink (4) Screws for fixing the awning (5) Communications port (COM) (6) Hole for the DC switch locking screw (7) DC switch (DC SWITCH) (8) Smart Dongle port (WLAN-FE) (9) Ventilation valve...

  • Page 21: Label Description

    2.3 Label Description Enclosure Labels Symbol Name Description Delay discharge Residual voltage exists after the ISTORE is powered off. It takes 5 minutes for the ISTORE to discharge to the safe voltage. Burn warning Do not touch a running ISTORE because it generates high temperatures on the shell.

  • Page 22: Working Principles

    2.4 Working Principles 2.4.1 Circuit Diagram An ISTORE can connect to a maximum of eight PV strings and has four MPPT circuits inside. Each MPPT circuit tracks the maximum power point of two PV strings. The ISTORE converts DC power into single-phase AC power through an inverter circuit. Surge protection is supported on both the DC and AC sides.

  • Page 23: Working Modes

    The ISTORE can work in Standby, Operating, or Shutdown mode. Figure 2-5 Working modes Table 2-1 Working mode description Working Description Mode Standby The ISTORE enters Standby mode when the external environment does not meet the operating requirements. In Standby mode: Issue 01 (2023-07-30)
  • Page 24 The ISTORE tracks the maximum power point to maximize the PV  string output. If the ISTORE detects a fault or a shutdown command, it enters the  Shutdown mode. The ISTORE enters Standby mode after detecting that the PV string ...

  • Page 25: Istore Storage

    If any rodent bites are found on the packing materials, replace the packing materials immediately. If the ISTORE has been stored for more than two years, it must be checked and tested by  professionals before being put into use.

  • Page 26: Installation

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation Installation 4.1 Checking Before Installation Outer Packing Materials Before unpacking the inverter, check the outer packing materials for damage, such as holes and cracks, and check the inverter model. If any damage is found or the inverter model is not what you requested, do not unpack the package and contact your supplier as soon as possible.

  • Page 27: Tool Preparation

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation 4.2 Tool Preparation Type Tools and Instruments Installa tion Insulated torque socket Insulated torque socket wrench Phillips insulated torque screwdriver wrench (including an (including an extended socket) extension bar) Hammer drill Drill bit Rubber mallet Utility knife...

  • Page 28: Selecting An Installation Position

    The ISTORE is IP66-rated and can be installed indoors or outdoors.  Do not install the ISTORE in a place where a person can easily be exposed to its  enclosure and heat sinks, because these parts are extremely hot during operation.
  • Page 29 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation The ISTORE will be corroded in salt areas, and the salt corrosion may cause fire. Do not  install the ISTORE outdoors in salt areas. A salt area refers to the region within 500 m from the coast or prone to sea breeze.
  • Page 30 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation Installation Space Requirements Reserve enough clearance around the ISTORE to ensure sufficient space for installation  and heat dissipation. Figure 4-2 Installation space When installing multiple ISTOREs, install them in horizontal mode if ample space is ...
  • Page 31 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation Figure 4-4 Two-layer triangle installation (recommended) Figure 4-5 Three-layer triangle installation (not recommended) Issue 01 (2023-07-30)

  • Page 32: Moving The Istore

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation Figure 4-6 Stacked installation (not recommended) Figure 4-7 Back-to-back installation (not recommended) The installation diagrams are for reference only and are irrelevant to the ISTORE cascading scenario. 4.4 Moving the ISTORE Issue 01 (2023-07-30)

  • Page 33: Installing The Mounting Bracket

     scratches. Keep the equipment stable during unpacking. Procedure Step 1 Lift the ISTORE from the packing case and move it to the specified installation position. Move the ISTORE with care to prevent device damage and personal injury.  Do not use the wiring terminals and ports at the bottom to support any weight of the ...

  • Page 34: Support-Mounted Installation

    User Manual 4 Installation Figure 4-9 Position for binding the security Torx wrench (1) Security Torx wrench Figure 4-10 shows the dimensions of the mounting holes for the ISTORE. Figure 4-10 Mounting bracket dimensions 4.5.1 Support-mounted Installation Procedure Step 1 Secure the mounting bracket.

  • Page 35: Wall-Mounted Installation

    You are advised to apply anti-rust paint on the hole positions for protection. ----End 4.5.2 Wall-mounted Installation Prerequisites To install the ISTORE, you need to prepare expansion bolts. M12x60 stainless steel expansion bolts are recommended. Procedure Step 1 Determine the positions for drilling holes and mark the positions using a marker.

  • Page 36: Installing An Istore

    The DC switch locking screw is used to lock the DC switch to prevent the switch from rotating.  For models used in Australia, install the DC switch locking screw according to local standards. The  DC switch locking screw is delivered with the ISTORE. Issue 01 (2023-07-30)
  • Page 37 Figure 4-14 Installing the locking screw for the DC switch Step 2 Install the ISTORE onto the mounting bracket. Figure 4-15 Installing an ISTORE Step 3 Tighten the nuts on both sides of the ISTORE. Figure 4-16 Tightening the nut Issue 01 (2023-07-30)
  • Page 38 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 4 Installation Secure the screws on the sides before connecting cables. ----End Issue 01 (2023-07-30)

  • Page 39: Electrical Connections

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Electrical Connections 5.1 Precautions When exposed to sunlight, the PV arrays supply DC voltage to the inverter. Before connecting cables, ensure that all DC SWITCH on the inverter are OFF. Otherwise, the high voltage of the inverter may result in electric shocks.

  • Page 40: Preparing Cables

    The cable colors shown in the electrical connection diagrams provided in this section are for reference only. Select cables in accordance with local cable specifications (green-and-yellow cables are only used for protective earthing). 5.2 Preparing Cables Figure 5-1 ISTORE cable connections (dashed boxes indicate optional components) Table 5-1 Components Component Description...
  • Page 41 500 V AC and a rated current 63 A (IS-INV-29900-3PH)  100 A (IS-INV-40000-3PH)  Power meter The ISTORE can connect to the Purchased from a DTSU666-HW, YDS60-80 and power third-party meter. ISTORE Select a proper model as required.

  • Page 42: Connecting The Pe Cable

    Note a: Five-core cables with a cross-sectional area of 5 x 35 mm or 5 x 50 mm are not supported. If the ISTORE is used with a 3 party optimizer, route the AC and DC power cables separate to avoid interference to the communication of the 3 party optimizer.
  • Page 43 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Avoid scratching the core wire when stripping a cable.  The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap  the core wires completely. The core wires must contact the OT terminal closely. Wrap the wire crimping area with heat shrink tubing or PVC insulation tape.

  • Page 44: Connecting The Ac Output Power Cable

    5.4 Connecting the AC Output Power Cable Precautions An AC switch must be installed on the AC side of the ISTORE to ensure that the ISTORE can be safely disconnected from the power grid. Do not connect loads between the inverter and the AC switch that directly connects to the ...
  • Page 45 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections If the external AC switch can perform earth leakage protection, the rated leakage action  current should be greater than or equal to 300 mA. If multiple ISTOREs connect to the general residual current device (RCD) through their ...
  • Page 46 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Do not connect aluminum wiring terminals to the AC terminal block. Otherwise the  electrochemical corrosion will occur and affect the reliability of cable connections. Comply with the IEC61238-1 requirements when using copper-aluminum transition wiring ...
  • Page 47 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-5 Removing the AC terminal box Step 2 Connect the AC output power cable. To avoid damaging the rubber liner, do not route a cable with a crimped OT terminal directly ...
  • Page 48 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-7 Five-core cable (L1, L2, L3, N, and PE) Figure 5-8 Four-core cable (L1, L2, L3, and PE) Issue 01 (2023-07-30)
  • Page 49 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-9 Four-core cable (L1, L2, L3, and N) Figure 5-10 Three-core cable (L1, L2, and L3) Issue 01 (2023-07-30)

  • Page 50: Installing The Dc Input Power Cable

    Before connecting the DC input power cables, ensure that the DC voltage is within the  safe range (lower than 60 V DC) and that the DC switch on the ISTORE is OFF. Failing to do so may result in electric shocks.
  • Page 51 PV strings may be short-circuited to ground if the power cable is not properly installed or routed. In this case, an AC or DC short circuit may occur and damage the ISTORE. The caused device damage is not covered under any warranty.

  • Page 52: Connecting Cables To Amphenol Helios H4 Connectors

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections 5.5.2 Connecting Cables to Amphenol Helios H4 Connectors Use the positive and negative Amphenol Helios H4 metal terminals and DC connectors supplied with the solar inverter. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences.

  • Page 53: Connecting Cables To Staubli Mc4 Connectors

    Use the positive and negative Staubli MC4 metal terminals and DC connectors supplied with the ISTORE. Using incompatible positive and negative metal terminals and DC connectors may result in serious consequences. The caused device damage is not covered under warranty.
  • Page 54 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections You are advised to use the PV-CZM-22100 (Staubli) crimping tool and do not use it with  the positioning block. Otherwise, the metal terminals may be damaged. The PV-MS (Staubli) or PV-MS-HZ (Staubli) open-end wrench is recommended. ...

  • Page 55: Optional) Installing The Smart Dongle

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections 5.6 (Optional) Installing the Smart Dongle Procedure The Smart Dongle is not provided in standard configuration. WLAN-FE Smart Dongle (WLAN Communication)  Figure 5-15 Installing a WLAN-FE Smart Dongle (WLAN communication) WLAN-FE Smart Dongle (FE Communication) ...

  • Page 56: Connecting The Signal Cable

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections 5.7 Connecting the Signal Cable COM Port Pin Definitions When laying out a signal cable, separate it from power cables to avoid strong signal interference. Figure 5-17 Pin definitions Definiti Function Description Definiti...
  • Page 57 Scenarios Where No Signal Cable Is Connected If no signal cable is required for the ISTORE, use waterproof plugs to block the wiring holes on the signal cable connector and connect the signal cable connector to the communications port on the ISTORE to improve the waterproof performance of the ISTORE.

  • Page 58: Communication Modes

    RS485 Communication Smart Dongle networking (IS-DONGLE-WLAN)  Figure 5-19 Smart Dongle networking If an ISTORE is networked using a Smart Dongle, it cannot be connected to the IS-LOGGER3000. SmartLogger networking (IS-LOGGER3000)  Figure 5-20 SmartLogger networking If an ISTORE is networked using the IS-LOGGER3000, it cannot be connected to a Smart Dongle.

  • Page 59: Optional) Connecting The Rs485 Communications Cable To The Power Meter

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-21 Connecting the cable Step 2 Connect the signal cable connector to the COM port. Figure 5-22 Securing the signal cable connector ----End 5.7.3 (Optional) Connecting the RS485 Communications Cable to the Power Meter Procedure Step 1 Connect the signal cable to the signal cable connector.

  • Page 60: Optional) Connecting The Power Grid Scheduling Signal Cable

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-23 Connecting the cable Step 2 Connect the signal cable connector to the COM port. Figure 5-24 Securing the signal cable connector ----End 5.7.4 (Optional) Connecting the Power Grid Scheduling Signal Cable Procedure Step 1 Connect the signal cable to the signal cable connector.

  • Page 61: Optional) Connecting The Rapid Shutdown Signal Cable

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-25 Connecting the cable Step 2 Connect the signal cable connector to the COM port. Figure 5-26 Securing the signal cable connector ----End 5.7.5 (Optional) Connecting the Rapid Shutdown Signal Cable Procedure Step 1 Connect the signal cable to the signal cable connector.
  • Page 62 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 5 Electrical Connections Figure 5-27 Connecting the cable Step 2 Connect the signal cable connector to the COM port. Figure 5-28 Securing the signal cable connector ----End Issue 01 (2023-07-30)

  • Page 63: Commissioning

    6.1 Checking Before Power-On Table 6-1 Checklist Check Item Acceptance Criteria ISTORE installation The ISTORE is installed correctly and securely. Smart Dongle The Smart Dongle is installed correctly and securely. Cable routing The cables are routed properly as required by the customer.

  • Page 64: System Power-On

    Wear personal protective equipment and use dedicated insulated tools to avoid electric  shocks or short circuits. Before turning on the AC switch between the ISTORE and the power grid, check that the  AC voltage is within the specified range using a multimeter.
  • Page 65 A mobile phone is connected. No communication Note: If LED1, LED2, and LED3 are steady red, the ISTORE is faulty and needs to be replaced. Installer needs to follow the Section 7 with the proper commissioning before inverter starts Step 8 to operate.

  • Page 66: Man-Machine Interaction

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Man-Machine Interaction 7.1 App Commissioning You can use the app to perform local maintenance operations, such as device commissioning, parameter setting, log export, and software upgrade. 7.1.1 Downloading the HiSolar App Search for HiSolar on Google Play and download the latest installation package.

  • Page 67: Quick Settings

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Step 2 Log in as an Installer. Set the login password upon the first login. To ensure account security, protect the password by changing it periodically, and keep it secure. 7.1.3 Quick Settings Set parameters as prompted on the Quick settings screen.

  • Page 68: Parameters Settings

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Step 2 Tap Settings > Apps & services, and choose Launch manager. Step 3 Tap Manage manually > Run in background for the HiSolar app. The menu name may vary according to the mobile phone brand. 7.2 Parameters Settings Set inverter parameters.
  • Page 69 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Table 7-1 Grid-tied point control Parameter Name Description Active Unlimited If this parameter is set to Unlimited, the power output power of the inverter is not limited and the inverter can connect to the power grid at the rated power.
  • Page 70 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Parameter Name Description when communication inverter active power by percentage. If fails the Smart Dongle does not detect any meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.
  • Page 71 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Parameter Name Description connected (%) this parameter to IS-DONGLE- WLAN. If there is only one inverter, set this  parameter to Inverter. Limitation mode Total power indicates export limitation of the total power at the grid-tied point. PV plant capacity Specifies the total maximum active power in the inverter cascading scenario.
  • Page 72 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Parameter Name Description threshold. The default value is 0. This parameter Upper feed-in power threshold for inverter  shutdown (kW) specifies the power threshold of the grid-connection point for triggering inverter shutdown.

  • Page 73: Afci

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction Parameter Description Value Range Maximum apparent power Specifies the output upper [Maximum active power, (kVA) threshold for the maximum apparent power to adapt to the capacity requirements of standard and customized inverters.

  • Page 74: Drm

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction 7.2.3 DRM Function According to AS/NZS 4777.2:2020+A1:2021, solar inverters need to support the function of demand response mode (DRM), and DRM0 is a mandatory requirement. The inverter must be connected with external device IS-LOGGER3000. The demand response enabling device directly connected to IS-LOGGER3000 and inverter connected to IS- LOGGER3000 via communication RS485.
  • Page 75 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 7 Man-Machine Interaction ----End Issue 01 (2023-07-30)

  • Page 76: Maintenance

    8.1 System Power-Off Precautions After the ISTORE powers off, the remaining electricity and heat may still cause electric shocks and body burns. Therefore, put on protective gloves and begin operating the ISTORE five minutes after the power-off.

  • Page 77: Routine Maintenance

    User Manual 8 Maintenance Figure 8-1 Installing the locking screw for the DC switch Step 5 Turn on the DC switch between the PV string and the ISTORE if there is any. ----End 8.2 Routine Maintenance To ensure that the ISTORE can operate properly for a long term, you are advised to perform routine maintenance on it as described in this chapter.

  • Page 78: Troubleshooting

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 8 Maintenance Check Item Check Method Maintenance Interval Air tightness Check that all terminals and ports are Once a year properly sealed. Clear vegetation Perform inspection and weeding as Based on the local ...
  • Page 79 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 8 Maintenance Name Severity Cause Solution and 6 Cause ID 4: PV strings 7  and 8 2003 DC arc Major The PV string power cables Check whether the PV string cables fault arc or are in poor contact.
  • Page 80 Turn off the AC output switch and self- DC input switch, and then turn them The AFCI self-check fails. check on after 5 minutes. If the alarm failure persists, contact ISTORE technical support. 2031 Phase Major Cause ID = 1 Check the impedance of the output...
  • Page 81 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 8 Maintenance Name Severity Cause Solution power operator. 3. Check whether the peak voltage of the power grid is too high. If the fault occurs frequently and persists for a long time, contact the local power operator.
  • Page 82 2. If the alarm persists and affects the energy yield of the PV plant, contact your dealer or ISTORE technical support. 1. If the alarm occurs accidentally, 2051 Abnorma Major...
  • Page 83 3. If both the ventilation and The inverter is not ambient temperature meet  operating properly. requirements yet the alarm persists, contact your dealer or ISTORE technical support. 2064 Device Major Cause ID = 1–15 Turn off the AC output switch and fault...
  • Page 84 2. If the upgrade fails several The upgrade is not completed version times, contact your dealer or normally. mismatch ISTORE technical support. 1. Apply for a new license. 2066 License Warning Cause ID = 1 expired 2. Load a new certificate.
  • Page 85 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 8 Maintenance Name Severity Cause Solution tion upper threshold. reversely connected. Cause ID = 2 Cause ID 1: Check whether the   total number of 3rd party The PV string power or the optimizers exceeds the upper number of 3rd party threshold.
  • Page 86 DC input switch and AC output switch. 2. If the alarm persists, contact your dealer or ISTORE technical support. Cause ID = 2  1. Check the impedance between the PV array output and the ground.
  • Page 87 Contact your dealer or ISTORE technical support if all troubleshooting procedures listed above are completed and the fault still exists. Contact your dealer for list of compatible 3 party Optimizers.

  • Page 88: Handling The Inverter

    If the original packing materials are not available, put the ISTORE inside a suitable  cardboard box and seal it properly. 9.3 Disposing of the ISTORE If the ISTORE service life expires, dispose of it according to the local disposal rules for electrical equipment waste. Issue 01 (2023-07-30)

  • Page 89: Technical Specifications

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 10 Technical Specifications Technical Specifications Efficiency Technical IS-INV-29900-3PH IS-INV-40000-3PH Specifications Peak efficiency 98.65%/400 V 98.65%/400 V European efficiency 98.4%/400 V 98.4%/400 V Input Technical IS-INV-29900-3PH IS-INV-40000-3PH Specifications Recommended maximum 44,850 W 60,000 W...
  • Page 90 Specifications Number of MPPTs Note a: The maximum input voltage is the maximum DC input voltage that the ISTORE can withstand. If the input voltage exceeds this value, the ISTORE may be damaged. Note b: PV strings connecting to the same MPPT must contain the same quantity and model of PV modules.
  • Page 91 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 10 Technical Specifications Technical IS-INV-29900-3PH IS-INV-40000-3PH Specifications Output overcurrent Supported protection Input reverse connection Supported protection String fault detection Supported DC surge protection Type II AC surge protection Type II Insulation resistance Supported...
  • Page 92 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual 10 Technical Specifications Technical IS-INV-29900-3PH IS-INV-40000-3PH Specifications Storage temperature –40°C to +70°C IP rating IP66 Topology Transformerless Pollution degree PD3 (internal reduced to PD2) classification Wireless Communication Parameters Specifications Inverter Built-in WiFi WLAN-FE Smart Dongle Frequency 2400–2483.5 MHz...

  • Page 93: A Grid Codes

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual A Grid Codes Grid Codes The grid codes are subject to change. The listed codes are for reference only. For Australian market, to comply with AS/NZS 4777.2:2020 please select from Region A/B/C (AUSTRALIA-AS4777- A/B/C-LV230).
  • Page 94 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual A Grid Codes National/ Description IS-INV- IS-INV- 29900-3PH 40000-3PH Regional Grid Code AUSTRALIA- Australia power grid connection standard Supported Supported AS4777_C-LV230 (AS/NZS 4777.2:2020) AUSTRALIA- New Zealand power grid connection standard Supported Supported AS4777_NZ-LV230 (AS/NZS 4777.2:2020) AS4777 New Zealand and Australia power grid...

  • Page 95: B Device Commissioning

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual B Device Commissioning Device Commissioning Step 1 Connect to the solar inverter WLAN and log in to the device commissioning screen as the installer user. If the mobile phone is directly connected to the inverter, the visible distance between the ...

  • Page 96: C Setting Power Adjustment Parameters

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual C Setting Power Adjustment Parameters Setting Power Adjustment Parameters Prerequisite: You have logged in to the HiSolar app as installer. Export Limit: From Main Page, Select Power adjustment Feature parameters Grid-tied point control Active Power Set the export limit as required Issue 01 (2023-07-30)
  • Page 97 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual C Setting Power Adjustment Parameters P-U Setting: From Main Page, Select Set Feature parameters  enable ‘Voltage rise suppression’  Set the Curve points  set the value U and P/Pn accordingly with the value provided by grid operator and Submit: Issue 01 (2023-07-30)
  • Page 98 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual C Setting Power Adjustment Parameters Q-U Setting From Main Page, Select Set  Power adjustment select ‘Q-U characteristic curve’  Set the Curve points  set the value U and Q/S accordingly with the value provided by grid operator and Submit: ----End Issue 01 (2023-07-30)

  • Page 99: D Rapid Shutdown

    Log in to the App as an installer, choose Me > Device Commissioning, and connect to the WLAN hotspot of the ISTORE. Log in to the local commissioning system as an installer user, choose Settings > Feature parameters > Dry contact function, and set Dry contact function to DI rapid shutdown.

  • Page 100: E Resetting Password

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual E Resetting Password Resetting Password Step 1 Check that the AC and DC power supplies to the solar inverter are connected simultaneously, and that the indicators are steady green or blink slowly for more than 3 minutes. Step 2 Turn off the AC switch, set the DC switch at the bottom of the solar inverter to OFF, and wait until all indicators on the solar inverter panel turn off.

  • Page 101: F Locating Insulation Resistance Faults

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual F Locating Insulation Resistance Faults Locating Insulation Resistance Faults If the ground impedance of a PV string connected to the inverter is too low, the inverter generates a Low insulation resistance alarm. The possible causes are as follows: A short circuit has occurred between the PV array and the ground.
  • Page 102 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual F Locating Insulation Resistance Faults If the irradiance or the PV string voltage is too high, the insulation resistance fault location may fail. In this case, the fault location status on the Alarm details screen is Conditions not met.
  • Page 103 SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual F Locating Insulation Resistance Faults Maintenance > Inverter ON/OFF, send a shutdown command, and set DC SWITCH to OFF. Go to Step If the Low insulation resistance alarm is reported 1 minute after the DC side is powered ...

  • Page 104: G Acronyms And Abbreviations

    SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)- User Manual G Acronyms and Abbreviations Acronyms and Abbreviations AFCI arc-fault circuit interrupter light emitting diode MBUS monitoring bus maximum power point MPPT maximum power point tracking protective earthing potential induced degradation photovoltaic residual current device Issue 01 (2023-07-30)

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