SolarEdge TerraMax SE330K Series Installation Manual

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Installation Guide

SolarEdge TerraMax Inverter

PN: SE330K-XXXXXXXXX & SE300K-XXXXXXXXX

For Europe, APAC and South Africa

Version 1.3

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Summary of Contents for SolarEdge SolarEdge TerraMax SE330K Series

Page 1 Installation Guide SolarEdge TerraMax Inverter PN: SE330K-XXXXXXXXX & SE300K-XXXXXXXXX For Europe, APAC and South Africa Version 1.3...
Page 2 You may refer to the SolarEdge web site (www.solaredge.com) for the most updated version. All company and brand products and service names are trademarks or registered trademarks of their respective holders.
Page 3 Revision History Revision History Version 1.3 (August 2024) Added wire lug compatibility. Version 1.2 - Change of product name to SolarEdge TerraMax Inverter. Version 1.1 - Removed PG wires next to DC bus-bar. Version 1.0 - Initial release. SolarEdge TerraMax Inverter...
Page 4 Contents Disclaimers Important Notice Revision History HANDLING AND SAFETY INSTRUCTIONS Safety Symbols Information Chapter 1: System Overview The SolarEdge TerraMax Inverter Combiner Box The H1300 Power Optimizer Designer Monitoring Platform SetApp Installation Tools and Material List Chapter 2: Inverter Overview...
Page 5 Revision History Appendix B: Maintenance Routine Maintenance of the System Monitoring the Solar System Performance Appendix C: SafeDC™ Appendix D: Technical Specifications SolarEdge TerraMax Inverter...
Page 6 Denotes information about safety issues. Disposal requirements under the Waste Electrical and Electronic Equipment (WEEE) regulations: NOTE Discard this product according to local regulations or send it back to SolarEdge. WARNING! To reduce the risk of injury, read all instructions in this document. WARNING!
Page 7 WARNING! High DC Voltage on PV strings at night when Potential Induced Degradation (PID) rectifier / Volt-Ampere Reactive (VAR) control function is active. DO NOT touch any component or perform any maintenance operation on the PV strings. SolarEdge TerraMax Inverter...
Page 8 - a lifting aid. NOTE Use PV modules rated according to IEC 61730 class A. NOTE The symbol appears at grounding points on the SolarEdge equipment. This symbol is also used in this manual. SolarEdge TerraMax Inverter...
Page 9 5 minutes after disconnecting all sources of supply. Hot surface – To reduce the risk of burns, do not touch. Caution, risk of danger CAUTION! The inverter is only allowed to be installed in closed electrical operating area SolarEdge TerraMax Inverter...
Page 10 Chapter 1: System Overview 9 Chapter 1: System Overview SolarEdge Large Scale PV Plants Solution is a part of SolarEdge grid services solution, that enables cloud-based, real-time aggregative control, management, and reporting of distributed energy resources, for the creation of solar power plants.
Page 11 The H1300 Power Optimizer The SolarEdge H1300 Power Optimizer is a device that connects to two PV modules and optimizes and maximizes power harvesting performance by performing module-level maximum power point tracking (MPPT). The Power Optimizers regulate the PV string Voltage at a constant level, regardless of PV string length and environmental conditions.
Page 12 Designer SolarEdge Designer is a powerful tool and a user-friendly web application that simplifies solar energy system design. It offers an intuitive interface and advanced optimization features to help professionals create efficient PV designs. With accurate simulation algorithms and integration with SolarEdge products, it maximizes system performance.
Page 13 SetApp SolarEdge SetApp is a mobile application developed and designed to simplify the process of commissioning and configuring SolarEdge inverters and power optimizers by providing an intuitive and efficient interface for installers. With SetApp, installers can easily access and configure SolarEdge inverters and power optimizers through their smartphone or tablet.
Page 14 Chapter 1: System Overview 13 Ring/Lug terminals crimping tool Wire cutters Wire strippers Multimeter For secondary grounding: Ring/lug terminal crimper tool for the Ground wire Ring/lug terminal Serrated washer Grounding screw Two washers SolarEdge TerraMax Inverter...
Page 15 The DC Disconnect Switch is a manually operated safety switch for disconnecting the DC power of the SolarEdge system. The switch is used to disconnect the solar array from the inverter in case of fire or lower the chance of damage to the inverter caused by weather.
Page 16 Retirez la languette blanche de la poignée bleue et insérez un cadenas dans l'un des trous. ON/OFF/P Switch Figure 5 shows the ON/OFF/P switch of the SolarEdge TerraMax Inverter. Figure 5: ON/OFF/P switch ON (1) - Turning this switch ON (after Power Optimizer pairing) starts the operation of the Power Optimizers, enables power production, and allows the inverter to begin exporting power to the utility grid.
Page 17 P, less than 5 seconds, then exist) for 5 seconds. all LEDs are released. Activates the Wi-Fi access point for connecting to the SolarEdge Inverter SetApp Switch moved to P for more than 5 seconds, Starts pairing then released.
Page 18 FAULT ON - system error Figure 6: Indication LEDs Blinking = Turns ON and OFF for the same duration Flickering = Turns ON for 100 mS and turns OFF for 5 seconds Alternating = Alternate LEDs flash SolarEdge TerraMax Inverter...
Page 19 Blinking Monitoring S_OK: System Producing No S_ OK: OFF S_OK: Night mode Flickering No S_ production) OK: OFF Inverter is OFF (Safe DC - optimizer's output OFF (0) Blinking voltage is 1V, DC voltage is below 50V) SolarEdge TerraMax Inverter...
Page 20 Production: 66 - 100 % AC Panels AC 1 Cable Grand: AC cable gland for grid connection AC 2 Cable Gland: AC cable gland for grid connection Protective Earth (PE) Wire Entry: Two PE glands for connecting Protective Earth (PE) wires SolarEdge TerraMax Inverter...
Page 21 LAN router. Communication Cable Glands Two communication glands on the communication compartment for communication and antenna cables. Cooling Fans Six cooling fans for removing warm air from the inverter, improving the power generation. SolarEdge TerraMax Inverter...
Page 22 DC output. This DC output is then connected to a single DC input in the inverter. The SolarEdge TerraMax Inverter has two DC inputs. therefore up to two combiner boxes can be connected to each inverter.
Page 23 If you intend to mount the Power Optimizers directly to the module or module frame, first consult the module manufacturer for guidance regarding the mounting location and the impact, if any, on module warranty. Drilling holes in the module frame should be done according to the module manufacturer instructions. SolarEdge TerraMax Inverter...
Page 24 IMPORTANT SAFETY FEATURE SolarEdge Power Optimizers are safe as long as the Inverter is turned off. When the inverter is turned off, or a Power Optimizer is disconnected, the output voltage of the Power Optimizer drops to a safe level of 1V.
Page 25 The Designer is available on the SolarEdge website at: https://www.solaredge.com/products/installer-tools/designer#/. SolarEdge allows the use of extension cables on the input side of the Power Optimizer when connected to a PV module or between two modules as long as: The total length of the round-trip cable, modules, and Power Optimizer input cables, do not exceed 16 m.
Page 26 Do not drill through the Power Optimizer or through the mounting holes. 3. Attach each Power Optimizer to the rack using M6 or M8 stainless steel bolts, nuts and washers or other mounting hardware. Apply torque of 9-10 N*m. Not applicable to smart modules. SolarEdge TerraMax Inverter...
Page 27 Monitoring Installation Data on page 61. NOTE When installing the Power Optimizers before the PV Modules, protect the connectors from rain and dust by using the provided seals. A seals kit can also be purchased separately (Part ID: OPT-SEAL-100). SolarEdge TerraMax Inverter...
Page 28 Images are for illustration purposes only. Refer to the label on the product to identify the plus and minus input and output connectors. NOTE When connecting SolarEdge Power Optimizer to multiple PV modules, the modules must be of the same type. NOTE When connecting two modules to one Power Optimizer, both PV modules must be positioned at the same orientation and tilt angle.
Page 29 CAUTION! When connecting three or more H1300 optimizer strings through a combiner box, SolarEdge recommends using a 30A fuse for each individual string to protect the system. However, be sure to check local electrical codes and regulations to determine the proper fuse sizing for your specific installation.
Page 30 Do not sharply bend the DC cables. Keep proper bending radius to avoid cable breakage. ATTENTION! Ne pliez pas brusquement les câbles DC. Gardez un rayon de courbure approprié pour éviter la rupture du câble. Figure 11: Power Optimizers connected in series SolarEdge TerraMax Inverter...
Page 31 Seal kits can be purchased separately (part ID: OPT-SEAL-100). 4. If you intend to monitor the installation, using the SolarEdge Monitoring platform, record the physical location of each Power Optimizer, as described in "Reporting and Monitoring Installation Data"...
Page 32 Make sure the PV modules are exposed to sunlight during this process. The Power Optimizer will only turn ON if a PV module provides at least 2W. In SolarEdge systems, due to the introduction of Power Optimizers between the PV modules and the inverter, the short circuit current I and the open circuit voltage V hold different meanings from those in traditional systems.
Page 33 NOTE Since the inverter is not yet operating, you may measure the PV string Voltage and verify correct polarity on the DC wires. For troubleshooting Power Optimizer operation problems, refer to "Power Optimizer Troubleshooting " on page 64. SolarEdge TerraMax Inverter...
Page 34 CAUTION! SolarEdge inverters and Power Optimizers can be installed at a minimum distance of 50 m from the shoreline of an ocean or other saline environment, if there are no direct saltwater splashes on the inverter or Power Optimizer.
Page 35 Installation location and Positioning Figure 14 shows the allowed mounting positions of the inverter. NOTE: SolarEdge recommend to keep the inverter shaded and out of direct sunlight to prevent overheating, reduction in power output and premature wear of electrical components.
Page 36 CAUTION! By installing the Inverters on a Centralized platform, all space clearances around the inverter must be followed. Vertical installation of inverters (one above other) is prohibited. Figure 15: Inverter clearance requirements SolarEdge TerraMax Inverter...
Page 37 Figure 16: Inverter Package Contents Identifying the Inverter The stickers on the inverter specify the inverter's Serial Number and Electrical Ratings. When opening a site in the SolarEdge Monitoring Platform and when contacting SolarEdge support, provide the inverter's serial number. SolarEdge TerraMax Inverter...
Page 38 Figure 17: Assembling the Mounting Bracket Installing the Mounting Bracket To install the mounting bracket: 1. Level the mounting bracket of the inverter horizontally against the metal frame and mark at least eight drilling hole locations (see Figure 18 ). SolarEdge TerraMax Inverter...
Page 39 CAUTION! HEAVY OBJECT 175 kg. To avoid injury, use proper lifting techniques, and if required - a lifting aid. When lifting, balance the load to avoid stress. SolarEdge TerraMax Inverter...
Page 40 CAUTION! HEAVY OBJECT 175 kg. To avoid injury, use proper lifting techniques, and if required - a lifting aid. When lifting, balance the load to avoid stress. SolarEdge TerraMax Inverter...
Page 41 (see Figure 19 ). 7. Tourqe the foure screws securing the inverter to the mounting bracket to 8.4 N*m. Connecting PV Strings and Arrays This section describes how to connect the inverter to the PV strings and PV arrays. SolarEdge TerraMax Inverter...
Page 42 Remove oxide from the exposed wires with emery paper or a steel-wire brush. b. Clean dust with a cloth and Isopropyl alcohol (IPA). c. Coat wires with a designated antioxidant aluminum wire grease immediately after cleaning. 5. Crimp lugs on the DC wires. SolarEdge TerraMax Inverter...
Page 43 8. Tighten the nut of the DC glands to 5 N*m 9. Place the cover of the DC terminal block in position and push until you hear a lock click. 10. Close the front cover of the inverter and fasten the screws to 3.53 N*m. SolarEdge TerraMax Inverter...
Page 44 Use wires compatible with local standards according to Inverter AC voltage. Use copper or aluminum wires with insulation rated for at least 90°C. Make sure to consider the maximum termination temperature at both ends of the conductor and to base the ampacity on the lower value. SolarEdge TerraMax Inverter...
Page 45 Connecting AC to the Inverter NOTE For more wiring information refer to the SolarEdge Recommended AC Wiring Application Note, available on the SolarEdge website at www.solaredge.com/sites/default/files/application-note-recommended-wiring.pdf Grounding the Mounting Bracket If required, ground the Mounting Bracket of the inverter as shown in Figure 24 .
Page 46 PE gland (see Figure 25 ). Strip the required length of insulation from the PE wire, crimp a lug and connect the wire to a PE terminal and tighten the screw to 16.27 N*m (see Figure 26 ). SolarEdge TerraMax Inverter...
Page 47 AC 1 and AC 2 cables to expose the cable wires. 7. Strip the required length of insulation from the L1, L2, L3 wires of the AC 1 and AC 2 cables. SolarEdge TerraMax Inverter...
Page 48 - For aluminum cables: Use Al/Cu (bi-metal) lugs or aluminum lugs with bi-metal washers. Place the bi-metal washer between the aluminum lug and the inverter bus bar, copper side facing the bus bar. - For copper cables: Use only copper tin-plated lugs. SolarEdge TerraMax Inverter...
Page 49 The two common communication protocols used for inverter networks are CAN (Controller Area Network) and RS-485 (Modbus protocol). The CAN network is used for linking up to 13 SolarEdge TerraMax Inverters. The maximum distance allowed between first and last inverter is 750 m.
Page 50 Figure 28 shows a string of SolarEdge TerraMax Inverters linked CAN or RS-485 communication network. Figure 28: String of SolarEdge TerraMax Inverters linked by a CAN or RS-485 communication network Figure 29 shows the communication compartment of the inverter.
Page 51 Connecting Communication Figure 29: Communication compartment of the inverter SolarEdge TerraMax Inverter...
Page 52 3. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel and wait 5 minutes to allow the capacitors inside the Inverter to discharge. 4. Release the four Allen screws (1) of the communication compartment cover (2) and remove the cover (see Figure 30 ). SolarEdge TerraMax Inverter...
Page 53 CAUTION! When removing the cover, make sure not to damage internal components. SolarEdge will not be held responsible for any components damaged as a result of incautious cover removal. 5. Loosen the nut (3) of Comm 1 gland (4) and remove the rubber seal (5).
Page 54 Reserved White/Blue White/Blue Reserved Green Orange Received- White/Brown White/Brown Reserved Brown Brown Reserved Figure 31: Ethernet connector - pin layout The connection does not support RX/TX polarity change. Supporting crossover Ethernet cables depends on the switch capabilities. SolarEdge TerraMax Inverter...
Page 55 Selecting a Residual Current Device (RCD) SolarEdge TerraMax inverters incorporate a certified internal RCD (Residual Current Device) to protect against possible electrocution in case of a malfunction of the PV array, cables, or inverter (DC). The inverter includes insulation and residual current monitoring according to IEC 62109-2 cl 4.8 to protect the DC side.
Page 56 Before starting the activation and commissioning, verify all the communication hardware is properly connected. Before arriving at the site, download SolarEdge SetApp application to your mobile device from Apple App Store or Google Play. Before activation and commissioning, download the SetApp application from: For downloading SetApp, Internet connection, one-time registration and logging are required.
Page 57 Tap and set Country & Grid. Tap and set any other configuration parameters as required. 6. From the Commissioning screen, tap Central Commissioning for follower inverters detection, pairing and central firmware upgrade and activation for all followers at once. SolarEdge TerraMax Inverter...
Page 58 Once all connections are made, all the Power Optimizers must be paired with the inverter. This section describes how to assign the Power Optimizers to the inverter. The pairing process takes place during the first activation of the inverter. The pairing process is automatically triggered during the commissioning process. SolarEdge TerraMax Inverter...
Page 59 LED. When working voltage is reached, the inverter enters Production mode and produces power. The steadily lit green inverter LED indicates this mode. 4. Tap OK to return to the Commissioning menu. SolarEdge TerraMax Inverter...
Page 60 From the Commissioning menu, Select Site Communication to configure communication between multiple SolarEdge devices or external non SolarEdge devices, such as batteries or data loggers. For more information on the Monitoring Platform, refer to the C&I One User Guide available on the SolarEdge website at: https://utility.solaredge.com/hub/ci_one_user_...
Page 61 ON/OFF/P switch to P position for 2 seconds and release. SetApp creates a Wi-Fi connection, upgrades the inverter firmware, activates the inverter and performs pairing. During the process "DC Commissioning" will appear on the top banner of screen. SolarEdge TerraMax Inverter...
Page 62 Reporting and Monitoring Installation Data Monitoring the site requires connecting the inverter to the monitoring platform, using any of the wired or wireless options available from SolarEdge. The Monitoring Platform The monitoring platform provides enhanced PV performance monitoring and inverter yield assurance through immediate fault detection and alerts at the module, PV array and system level.
Page 63 Physical Layout Editor 1. If you are a registered installer, access the monitoring platform site creation page at https://monitoring.solaredge.com/solaredge-web/p/home#createSites. If you have not yet signed up, go to https://monitoring.solaredge.com/ solaredge-web/p/createSelfNewInstaller. 2. Fill out all the required information in the screen, which includes information about your installation, as well as details about its logical and physical mapping.
Page 64 Troubleshooting 63 Appendix A: Errors and Troubleshooting This chapter describes how to troubleshoot general system problems. For further assistance, contact SolarEdge Support. Identifying Errors Errors may be indicated in various system interfaces: On the inverter bottom panel, a red LED indicates an error. In the monitoring platform and SetApp, errors are displayed with codes.
Page 65 Optimizer inputs (not applicable to smart PV string voltage not 0V but lower modules). than number of Power Optimizers Connect the modules to the Power Optimizer inputs. PV string reverse polarity. Check PV string polarity using a voltmeter and correct if needed. SolarEdge TerraMax Inverter...
Page 66 1V safety Voltage. If a malfunctioning Power Optimizers located, check its connections, polarity, module, and Voltage. 3. Contact SolarEdge Support. Do not continue before finding the problem and replacing the malfunctioning Power Optimizer. If a malfunction cannot be bypassed or resolved, skip the malfunctioning Power Optimizer, thus connecting a shorter PV string.
Page 67 Additional Troubleshooting 1. Check that the modem or hub/router is functioning properly. 2. Check that the connection to the internal connector on the communication board is properly done. SolarEdge TerraMax Inverter...
Page 68 Troubleshooting 67 3. Check that the selected communication option is properly configured. 4. Use a method independent of the SolarEdge device to check whether the network and modem are operating properly. For example, connect a laptop to the Ethernet router and connect to the Internet.
Page 69 Visually inspect fans for dust buildup. Inverter fans Clean fan blades and vents if excessive debris is present. Use infrared camera to check for hot spots on connectors, terminals, busbars, Signs of overheating and other components indicating overheating issues. SolarEdge TerraMax Inverter...
Page 70 Keep the fan clean and free of dust. When needed, and at least once a year, clean the accumulated dust using a brush. Check each fan to make sure it is functioning properly and is free of dust and debris. A dirty fan can cause the inverter to overheat, reducing its efficiency. SolarEdge TerraMax Inverter...
Page 71 7. Turn ON(I) the ON/OFF/P Switch of the inverter. 8. Use the SetApp mobile application to connect to the inverter and follow the on- screen instructions. From the Commissioning screen, tap Status and check that Fan OK is displayed in the Status screen. SolarEdge TerraMax Inverter...
Page 72 Clean the inverter: Dirt and debris can accumulate on the inverter over time, which can reduce its performance. Clean the inverter regularly with a soft brush, a soft cloth, and mild detergent to keep it functioning efficiently. SolarEdge TerraMax Inverter...
Page 73 If you are experiencing alerts from the SolarEdge monitoring system, it may indicate an issue with the PV modules, inverter, or the monitoring system itself. Some common alerts include: 1.
Page 74 ON/OFF/P switch is turned to OFF, the DC Voltage drops to a safe Voltage of 1V per Power Optimizer. The SolarEdge inverters are certified for compliance with the following standards as disconnection devices for PV generators, meaning that they can replace a DC disconnect: IEC 60947-3:1999 + Corrigendum: 1999 + A1:2001 + Corrigendum 1:2001 + A2:2005;...
Page 75 DC Reverse Polarity Protection Ground Fault Isolation Detection Yes, in accordance with IEC 62109-2 AC Surge Protection Type 2, monitored and field replaceable DC Surge Protection Type 2, monitored and field replaceable CAN, RS485 Surge Protection DC Disconnect Yes, integrated SolarEdge TerraMax Inverter...
Page 76 Refer to the Temperature Derating Technical Note for more details. (2) Two AC terminals per line are available. (3) Up to two DC terminals (+, -) are available. (4) A DC input with MC4 connectors supporting up to 20 strings is available upon request. SolarEdge TerraMax Inverter...

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