Installation Guide Three Phase System with SetApp Configuration For North America Version 1.
Disclaimers 1 Disclaimers Important Notice Copyright © SolarEdge Inc. All rights reserved. No part of this document may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photographic, magnetic or otherwise, without the prior written permission of SolarEdge Inc. The material furnished in this document is believed to be accurate and reliable. However, SolarEdge assumes no responsibility for the use of this material.
2 FCC Compliance FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Support and Contact Information Support and Contact Information If you have technical problems concerning SolarEdge products, please contact us: Support Center: https://www.solaredge.com/service/support USA and Canada: 1 510 498 3200 Worldwide: +972 073 2403118 Fax: +1 (530) 273-2769 Email: ussupport@solaredge.com. Support Center: https://www.solaredge.com/us/service/support Before contact, make sure to have the following information at hand: Model and serial number of the product in question.
4 Revision History Revision History Version 1.2 (Feb. 2019) Added appendix 'Determining the Circuit Breaker Size' and paragraph. referencing to it, in the 'Grid Connection Guidelines' section. Updated guidelines for use of extension cables in power optimizer installation. Torque for plastic cover screws 10.3 N*m/ 7.5 lb-ft. In Specifications removed 'Recommended OCPD size per grid' table. Added Proposition 65 warning (for California). Version 1.1 (Dec.
Contents 5 Contents Disclaimers Important Notice FCC Compliance 1 1 2 Support and Contact Information 3 Revision History 4 Contents 5 HANDLING AND SAFETY INSTRUCTIONS Safety Symbols Information 7 7 IMPORTANT SAFETY INSTRUCTIONS 8 Chapter 1: Introducing the SolarEdge Power Harvesting System Power Optimizer Inverter with Safety Switch Monitoring Platform Supported AC Grids Installation Procedure Installation Equipment List Inverter Transport and Storage 12 12 13 13 14 14 14 15 Chapter 2: Insta
6 Contents Step 1: Activating the Installation Step 2: Commissioning and Configuring the Installation Step 3: Verifying Proper Activation and Commissioning Viewing System Status Reporting and Monitoring Installation Data 51 52 56 57 63 Chapter 6: Setting Up Communication Communication Options Communication Connectors Removing the Inverter Cover Creating an Ethernet (LAN) Connection Creating an RS485 Bus Connection Verifying the Connection 66 66 68 69 69 73 77 Appendix A: Errors and Troubleshooting Iden
HANDLING AND SAFETY INSTRUCTIONS 7 HANDLING AND SAFETY INSTRUCTIONS During installation, testing and inspection, adherence to all the handling and safety instructions is mandatory. Failure to do so may result in injury or loss of life and damage to the equipment. Safety Symbols Information The following safety symbols are used in this document. Familiarize yourself with the symbols and their meaning before installing or operating the system. WARNING! Denotes a hazard.
8 IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS CONSIGNES DE SÉCURITÉ IMPORTANTES CONSERVEZ CES INSTRUCTIONS WARNING! The inverter cover must be opened only after switching the inverter ON/OFF/P switch located at the bottom of the inverter to OFF. This disables the DC voltage inside the inverter. Wait five minutes before opening the cover. Otherwise, there is a risk of electric shock from energy stored in the capacitors.
IMPORTANT SAFETY INSTRUCTIONS 9 WARNING! The Safety Switch meets all requirements for a code-compliant installation of this system. The DC Disconnect Switch disconnects both the positive and negative conductors. AVERTISSEMENT! Le sectionneur externe (inclus) repond aux exigences de conformité pour l’installation de ce système . Le coupeur CC ouvre les conducteurs positifs et négatifs. WARNING! The inverter input and output circuits are isolated from the enclosure.
10 IMPORTANT SAFETY INSTRUCTIONS WARNING! SolarEdge products can expose you to chemicals including antimony trioxide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov . AVERTISSEMENT! Les produits SolarEdge peut vous exposer à des agents chimiques, y compris trioxyde d'antimoine, identifiés par l'État de Californie comme pouvant causer le cancer. Pour de plus amples informations, prière de consulter www.P65Warnings.ca.gov.
IMPORTANT SAFETY INSTRUCTIONS 11 NOTE A SolarEdge inverter may be installed in a site with a generator, however must not operate at the same time as the generator. Operating an inverter and a generator simultaneously will void the warranty. SolarEdge requires installing a physical or electronic interlock, which will prevent the generator and inverter from operating simultaneously. Interlock procurement, installation, maintenance and support are the responsibility of the installer.
12 Chapter 1: Introducing the SolarEdge Power Harvesting System Chapter 1: Introducing the SolarEdge Power Harvesting System The SolarEdge power harvesting solution maximizes the power output from any type of solar Photovoltaic (PV) installation while reducing the average cost per watt. The following sections describe each of the system’s components.
Chapter 1: Introducing the SolarEdge Power Harvesting System 13 The Rapid Shutdown (PVRSS) is initiated by one of the following methods: Inverter AC breaker is turned OFF, or AC to the inverter is disconnected by another method (intentionally or as result of a fault) Inverter ON/OFF switch is turned OFF The Safety Switch is turned OFF For inverters with Manual Rapid Shutdown, initiation is done by switching the Safety Switch OFF Each power optimizer also transmits module performance data over the DC power
14 Supported AC Grids Supported AC Grids Figure 2: AC grids supported by SolarEdge three phase inverters NOTE Grid support depends on the inverter model. Some three phase inverters support the 208V 3-wire grid. Refer to Setting the Inverter to Support 208V 3wire Grid on page 43. Installation Procedure The following is the procedure for installing and setting up a new SolarEdge site. Many of these also apply to modification of an existing site. 1. Connecting Power Optimizers in Strings, page 25. 2.
Chapter 1: Introducing the SolarEdge Power Harvesting System 15 Non-contact voltage detector Cordless drill (with a torque clutch) or screwdriver and bits suitable for the surface on which the inverter and optimizers will be installed and for opening the Safety Switch drill guides. Use of an impact driver is not allowed.
16 Chapter 2: Installing the Power Optimizers Chapter 2: Installing the Power Optimizers Safety The following notes and warnings apply when installing the power optimizers. Some of the following may not be applicable to smart modules: WARNING! The metallic enclosure of the power optimizer must be grounded in accordance with the product's listing and local and national codes.
Chapter 2: Installing the Power Optimizers 17 CAUTION! All PV modules must be connected to a power optimizer. ATTENTION! Tous les modules doivent être connectés à un optimiseur de puissance. CAUTION! If you intend to mount the 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.
18 Package Contents ATTENTION! Les connecteurs du module doivent être mécaniquement compatibles avec les optimiseurs de puissance. Sinon, le système SolarEdge installé peut être dangereux ou causer des problèmes fonctionnels, tels que les défauts de terre, qui peuvent provoquer un arrêt de l’onduleur.
Chapter 2: Installing the Power Optimizers 19 Frame-mounted power optimizers are mounted directly on the module frame , regardless of racking system (rail-less or with rails). For installation of frame-mounted power optimizers, refer to http://www.solaredge.com/sites/default/files/installing_frame_mounted_ power_optimizers.pdf. The steps in this chapter refer to module add-on power optimizers.
20 Installation Guidelines NOTE The total conductor length of the string (excluding power optimizers’ conductors; including home runs and necessary extensions between optimizers) should not exceed the following: Inverter model Total conductor length ( from DC+ to DC- of the inverter) SE9KUS, SE10KUS, 1000 ft. /300 m SE20KUS SE14.4KUS, SE33.3KUS 2300 ft./ 700 m Use at least 11 AWG/ 4 mm² DC cables. Completely shaded modules may cause their power optimizers to temporarily shut down.
Chapter 2: Installing the Power Optimizers 21 When installing modules in a confined space, for example, if installing Buildingintegrated photovoltaic (BIPV) modules, ventilation measures may be needed to ensure the power optimizers are not be exposed to temperatures outside their specifications. NOTE The images contained herein are for illustrative purposes only and may vary depending on product models. Three Phase System Installation Guide MAN-01-00527-1.
22 Step 1: Mounting and Grounding the Power Optimizers Step 1: Mounting and Grounding the Power Optimizers (1) For each of the power optimizers : 1. Determine the power optimizer mounting location and use the power optimizer mounting brackets to attach the power optimizer to the support structure (See Figure 4). It is recommended to mount the power optimizer in a location protected from direct sunlight.
Chapter 2: Installing the Power Optimizers (1) 4. Use the following methods 23 to ground the power optimizer: WARNING! The metallic enclosure of the power optimizer must be grounded in accordance with the requirements of the local and national codes. AVERTISSEMENT! L'enceinte métallique de l’optimiseur de puissance doit être mise à la terre en accord avec les régulations locales et nationales.
24 Step 1: Mounting and Grounding the Power Optimizers Figure 5: Power optimizer installation and grounding using a grounding plate For mounting on un-grounded structures (such as a wooden structure): If the star washer or the plate cannot be used, use the SolarEdge grounding lug (purchased separately) with an equipment-grounding conductor according to the supplied instructions. The grounding terminal accepts a wire size of 6-14 AWG, and must be sized for equipment grounding per NEC 250.122 requirements.
Chapter 2: Installing the Power Optimizers 25 Step 2: Connecting a PV Module to a Power Optimizer NOTE Images are for illustration purposes only. Refer to the label on the product to identify the plus and minus input and output connectors. For each of the power optimizers: Connect the Plus (+) output connector of the module to the Plus (+) input connector of the power optimizer. Connect the Minus (-) output connector of the module to the Minus (-) input connector of the power optimizer.
26 Step 4: Verifying Proper Power Optimizer Connection AVERTISSEMENT! Si un optimiseur à double entrées est utilisé et que certaines entrées ne sont pas connectées, fermez ces entrées avec la paire de couvercles fournie. Figure 8: Power optimizers connected in series 3. If you intend to monitor the installation, using the monitoring platform, record the physical location of each power optimizer, as described in Creating Logical and Physical Layout using Installation Information on page 64.
Chapter 2: Installing the Power Optimizers 27 NOTE Since the inverter is not yet operating, you may measure the string voltage and verify correct polarity on the DC wires inside the Safety Switch. For troubleshooting power optimizer operation problems, refer to Power Optimizer Troubleshooting on page 82. Three Phase System Installation Guide MAN-01-00527-1.
28 Chapter 3: Installing the Inverter Chapter 3: Installing the Inverter Install the inverter either before or after the modules and power optimizers have been installed. NOTE Use only copper conductors rated for a minimum of 90°C/ 194°F. For the SE10KUS, SE20KUS, SE33.3KUS three phase inverters where opposite polarity DC conductors are routed in the same conduit, 1000V rated cables must be used.
Chapter 3: Installing the Inverter 29 Figure 9: Inverter Interfaces AC output: AC output gland, AC cable external gauge, M32 (15-21mm diameter) for connection to the grid AC and DC conduit entries: Connection points of the Safety Switch. Two communication glands: for connection of inverter communication options. Each gland has three openings. Refer to Setting Up Communication on page 66 for more information. Drain valve: Drains any moisture that may be accumulated in the unit.
30 Inverter Interfaces P Position duration Switch moved to P for less than 5 seconds, then released. Function Displays (via LEDs) production information for 5 seconds, or error type indications (if exist) for 5 seconds. Activates the Wi-Fi access point for connecting to the SetApp Switch moved to P for more than 5 Starts pairing seconds, then released. Comments While the switch is in P, all LEDs are ON. When the switch is released all LEDs turn OFF for 0.
Chapter 3: Installing the Inverter 31 Figure 11: LEDs The following table describes system performance information by LED color and ON/OFF/P switch position.
32 Inverter Interfaces Indication ON/ OFF/ P switch position Red Green Blue ON / P ON ON ON Inverter configuration or reboot Inverter firmware upgrade ON / P Error LED color Comment Alternating Alternating Any ON ON/ OFF/ Blinking/ Flickering Alternating ON/ OFF / Blinking The upgrade process can take up to 5 minutes Refer to Errors and Troubleshooting on page 79 The following table describes producution percentage of AC information by LED color and ON/OFF/P switch position.
Chapter 3: Installing the Inverter Figure 12: DC Safety Unit NOTE When the Safety Switch is OFF (for example during maintenance) it may be locked to prevent a safety hazard: 1. Move the switch to the Lock position. 2. Insert the lock through the knob opening and lock. Three Phase System Installation Guide MAN-01-00527-1.
34 Opening Conduit Drill Guides Opening Conduit Drill Guides This section describes how to open drill guides . CAUTION! SolarEdge does not permit opening or puncturing the Safety Switch in any location other than the pre-defined drill guide locations, or otherwise altering the construction of the enclosure, as this may compromise safety and will void the warranty. This includes, but is not limited to, the use of fasteners like rivets, screws, nails, inserts, or pins.
Chapter 3: Installing the Inverter 35 2. Loosen the screws on the front cover of the Safety Switch , as shown below: Figure 13: Opening the Safety Switch cover 3. Remove the Safety Switch cover. 4. Open the required AC and DC conduit drill guides according to the conduits used in the installation: The drill guides are located at the bottom, back and sides of the enclosure, each with two sizes: ¾'' and 1''. Open the required pair, taking care not to interfere with any of the internal components.
36 Mounting the Inverter The inverter is supplied with a mounting bracket. Figure 15: Mounting bracket NOTE Make sure the mounting surface or structure can support the weight of the inverter and bracket, and make sure that it spans the width of the bracket. CAUTION! HEAVY OBJECT. To avoid muscle strain or back injury, use proper lifting techniques, and if required - a lifting aid. ATTENTION! Objet lourd.
Chapter 3: Installing the Inverter 37 When installing inverters one above the other, leave at least 8" (20 cm) between the top of an inverter and the bottom of the Safety Switch.
38 Mounting the Inverter Figure 16: Clearance 3. Position the mounting bracket against the wall/pole and mark the drilling hole locations (refer to Mechanical Specifications on page 84 for inverter and mounting bracket dimensions): Ensure that the flat edge of the bracket is at the bottom, as in Figure 17. Use at least two bracket holes. Additional holes can be used to fix the bracket. Determine which and how many holes to use according to mounting surface type and material. 4.
Chapter 3: Installing the Inverter 39 NOTE When mounting an inverter on an uneven surface, you may use spacers/ washers behind the top mounting hole of the bracket. Depending on the angle, use the appropriate size and number of spacers so that the bracket is perpendicular to the ground. Recommended: a stainless steel 3/4" long screw, with a 1/4" socket button head , two jam nuts and three washers. 5.
40 Mounting the Inverter Fasten the bracket using a standard bolt. Verify that the bracket is firmly attached to the mounting surface. Figure 18: Safety Switch bracket 9. Insert the two supplied screws through the outer heat sink fin on both sides of the inverter and into the bracket (see Figure 17). Tighten the screws with a torque of 4.0 N*m / 2.9 lb.*ft. -Three Phase System Installation Guide MAN-01-00527-1.
Chapter 4: Connecting the AC and the Strings to the Safety Switch 41 Chapter 4: Connecting the AC and the Strings to the Safety Switch The Safety Switch disconnects all ungrounded DC conductors in compliance with the National Electric Code (NEC; Specifically NEC690.35, which addresses ungrounded PV arrays). The Safety Switch is rated to the maximum operating conditions of the inverter. Inverters of different models are equipped with different sizes/ types of terminal blocks.
42 Grid Connection Guidelines Figure 20: Inside the Safety Switch for three phase inverters (14.4kW & 33.3kW) Grid Connection Guidelines Equipment grounding tightening torques: 4-6 AWG: 45 lb-in, 8 AWG: 40 lb-in, 10-14 AWG: 35 lb-in. The conduits, hubs and fittings must be suited for field wiring systems. The hubs and other fittings must comply with UL514B. Use only copper conductors rated for a minimum of 90°C. For the SE10KUS, SE20KUS, SE33.
Chapter 4: Connecting the AC and the Strings to the Safety Switch 43 Setting the Inverter to Support 208V 3-wire Grid SolarEdge inverters that support the 208V 3-wire grid are equipped with two fuse holders and a fuse in each unit. The position of the fuse configures the AC grid connection: 4- wire or 3-wire grid connection. By default, the fuse is located in the 4wire fuse holder of the inverter, and in the 3-wire fuse holder there is a plastic dummy fuse.
44 Connecting the AC Grid to the Safety Switch CAUTION! If the fuse was moved to support one of the grid types, do not connect the inverter to the other grid type without switching the fuse back to the correct holder. Connecting the inverter to grids when the fuse is incorrectly located may damage the inverter and void the warranty.
Chapter 4: Connecting the AC and the Strings to the Safety Switch 45 To connect AC to ground: 1. Insert the grounding cable through the AC drill guide. 2. Connect the cable to the equipment grounding bus-bar. Tighten using a torque of 4.0 N*M / 35 lb-in. Figure 22: AC grounding in the Safety Switch NOTE The Safety Switches are equipped with different types of terminal blocks. The above figure is one example of the available Safety Switches. Three Phase System Installation Guide MAN-01-00527-1.
46 Connecting the AC Grid to the Safety Switch To connect the AC grid to the Safety Switch – 14.4 & 33.3kW inverters: 1. Remove the spring-clamp terminal instructions from inside the switch. 2. Strip 1⅜ '' (35mm) of the AC wire insulation. 3. Insert the AC conduit into the AC-side drill guide that was opened. NOTE Connect the equipment grounding before connecting the AC wires to the AC terminal block. Veillez à relier le conducteur de PE (la terre) avant de connecter les fils CA au bornier CA. 4.
Chapter 4: Connecting the AC and the Strings to the Safety Switch 47 To connect the AC grid to the Safety Switch – 9kW, 10kW, 20kW: 1. Strip 05⁄16'' (8mm) of the AC wire insulation. 2. Insert the AC conduit into the AC-side drill guide that was opened. NOTE Connect the equipment grounding before connecting the AC wires to the AC. Veillez à relier le conducteur de PE (la terre) avant de connecter les fils CA au bornier CA. 3. Connect the wires as follows: 1.
48 Connecting the Strings to the Safety Switch Connecting the Strings to the Safety Switch You can connect systems with multiple DC strings in parallel to the DC input terminals of the switch. Inverters have one, two or three pairs of DC input terminals, depending on the inverter power rating. If more strings are required, they can be connected in parallel using an external combiner box before connecting to the switch.
Chapter 4: Connecting the AC and the Strings to the Safety Switch 49 For three phase inverters 9kW, 10kW and 20kW - Connect the DC wires from the PV installation to the DC+ and DC- terminal blocks, according to the labels on the terminals: Use a standard flat-blade screwdriver to connect the wires to the springclamp terminals. The screwdriver blade should fit freely in the terminal opening. Too large a blade can crack the plastic housing.
50 Connecting the Strings to the Safety Switch Figure 26: DC Spring-clamp terminal – 14.4kW and 33.3kW inverters 5. Close the Safety Switch cover: Attach the switch cover and secure it by tightening the four screws with a torque of 1.2 N*m / 0.9 ft.*lb. 6. Ensure proper conduit sealing; inspect the entire conduit run and use standard conduit sealants to avoid water penetration. -Three Phase System Installation Guide MAN-01-00527-1.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 51 Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp If applicable, you can connect communication options at this stage, as described in Setting Up Communication on page 66. Once all connections are made, the system should be activated and commissioned using the Inverter SetApp mobile application.
52 Step 2: Commissioning and Configuring the Installation 3. When the activation is complete, do one of the following: Select Activate Another Inverter to continue activating additional inverters Select Start Commissioning for pairing and other system configuration. The Commissioning screen is displayed. Refer to the next section for more information.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 53 WARNING! The inverter must be configured to the proper setting in order to ensure that it complies with the country grid code and functions properly with the country grids. AVERTISSEMENT! L'onduleur doit être configuré pour le pays approprié afin d'assurer un fonctionnement convenable avec le réseau de ce pays. 3. From the Language drop-down list, select the language. 4. Tap Set Language. Pairing 1.
54 Step 2: Commissioning and Configuring the Installation 1. Select the Communication menu to define and configure the following: The communication option used by the inverter to communicate with the monitoring platform The communication option used to communicate between multiple SolarEdge devices or other external non-SolarEdge devices, such as electricity meters or loggers. 2.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 55 NOTE SolarEdge inverters with “Grid Support” functionality (as marked on the inverter certification label), are compliant with UL 1741 Supplement A. The functionality is built into the inverter and no additional external device is required. Device Manager From the Commissioning menu, select Device Manager to configure various system Smart Energy Management devices. For more information refer to https://www.
56 Step 3: Verifying Proper Activation and Commissioning Board Replacement: Backs up and restores the system parameters, including energy counters; Used during board replacement according to the instructions supplied with replacement kits. Information From the Commissioning menu, select Information to view and set various system settings, as described below.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 57 Viewing System Status During normal operation, the Status screen displays all the inverter settings and operation status. Scroll up or down to display various status parameters as described in the following sections. The LED indication provides more information about system performance; Refer to LEDs on page 30. To access the Status screen: From the Commissioning menu select Status.
58 Viewing System Status Main Inverter Status Status Inverter SN 07318000C Power Voltage Frequency 50 kW 230Vac 50 Hz P_OK: 15 of 20 Server Comm. Optimizers Connected S_OK (LAN) Status Switch Production OFF CosPhi Limit Country 1.00 No Limit USA2 Voltage Temp Fan 350 Vdc 156 F N/A Switch Off.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 59 indicates a lagging CosPhi. For more information, refer to the Power Control Application Note, available on the SolarEdge website at https://www.solaredge.com/sites/default/files/application_note_power_ control_configuration.pdf.
60 Viewing System Status Site status: Production: The AC output power Limit: Limitation setting (Export or Production) Inverters: Number of connected inverters in the cluster, including the master. Communication Status This screen displays the status of connection option(s): LAN, RS485, cellular or ZigBee Plug-in.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 61 Inverter Energy Status Displays the total energy produced during the last day, month, year and since inverter installation. Inverter Energy Today 45 kWh This Month This Year 1.14 MWh 13.68 MWh Total: 41.03 MWh Today: since midnight This Month: since 1st of the current month This Year: since January 1st Total (Wh): The inverter total energy.
62 Viewing System Status Meter Status Meters Export – RS485-2 Modbus ID #2 Status: OK Type and function: Displays the meter functionality (Production, Export, Import, Export+Import) Status: Displays OK if the meter is communicating with the inverter : If there is a meter error, it is displayed in this line. Power: Depending on the meter type connected to the inverter, this line displays the exported or imported power Energy: The total energy read by the meter.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 63 Reporting and Monitoring Installation Data NOTE Monitoring the site requires connecting the inverter to the monitoring platform, using any of the wired or wireless options available from SolarEdge. Refer to Setting Up Communication on page 66.
64 Reporting and Monitoring Installation Data Creating Logical and Physical Layout using Installation Information To display a logical layout, insert the inverterserial number in the new site created in the monitoring platform. When the communication between the inverter and the monitoring server is established, the logical layout is displayed. To display a physical layout, you need to map the locations of the installed power optimizers.
Chapter 5: Activating, Commissioning and Configuring the System Using the Inverter SetApp 65 Physical Layout Editor 1. If you are a registered installer, access the monitoring platform site creation page at https://monitoring.solaredge.com/solaredgeweb/p/home#createSites . If you have not yet signed up, go to https://monitoring.solaredge.com/solaredge-web/p/createSelfNewInstaller. 2.
66 Chapter 6: Setting Up Communication Chapter 6: Setting Up Communication The inverter sends the following information to the monitoring platform: Power optimizer information received via the DC power lines (the PV output circuit). Inverter information Information of any other connected devices. This chapter describes setting up communication between: The inverter and the monitoring platform through the Internet (wired/ wireless), or through a cellular connection.
Chapter 6: Setting Up Communication 67 RS485 RS485 is used for the connection of multiple SolarEdge devices on the same bus in a master-slave configuration. RS485 can also be used as an interface to external devices, such as meters and third party data loggers. RS485-1: Enables the connection of multiple devices (inverters/Commercial Gateway) over the same bus, such that connecting only one device to the Internet is sufficient to provide communication services for all the devices on the bus.
68 Communication Connectors Communication Connectors Two communication glands are used for connection of the various communication options. Each gland has three openings. The table below describes the functionality of each opening. Unused openings should remain sealed. Gland# 1 (PG16) Opening One small Two large 2 (PG13.5) All three Functionality External antenna cable Ethernet connection (CAT5/6) or Cellular RS485 Cable size (diameter) 2-4 mm 4.5-7 mm 2.
Chapter 6: Setting Up Communication 69 Removing the Inverter Cover If the inverter cover is not already removed, use the following procedure for cover removal. To remove the inverter cover 1. Turn the inverter ON/OFF/P switch to OFF. Wait 5 minutes for the capacitors to discharge. 2. Turn the Safety Switch to OFF. 3. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel. 4.
70 Creating an Ethernet (LAN) Connection Figure 29: Example of Ethernet connection To connect the Ethernet cable: 1. Remove the inverter cover as described in Removing the Inverter Cover on page 69. 2. Open the communication gland #1. CAUTION! The gland includes a rubber waterproof fitting, which should be used to ensure proper sealing. ATTENTION! Le cote interne du gland contient une rondelle qui doit être utilisée pour une bonne étancheïté. 3. Remove the plastic seal from one of the large opening . 4.
Chapter 6: Setting Up Communication (1) Wire Color RJ45 Pin # 1 2 3 4 5 6 7 8 T568B T568A White/Orange Orange White/Green Blue White/Blue Green White/Brown Brown White/Green Green White/Orange Blue White/Blue Orange White/Brown Brown 71 10Base-T Signal 100Base-TX Signal Transmit+ TransmitReceive+ Reserved Reserved ReceivedReserved Reserved Figure 31: Standard cable wiring 6.
72 Creating an Ethernet (LAN) Connection Figure 32: The RJ45 Ethernet connection 7. For the switch/router side, use a pre-crimped cable or use a crimper to prepare an RJ45 communication connector: Insert the eight wires into the RJ45 connector in the same order as above ( Figure 31). 8. Connect the cable RJ45 connector to the RJ45 port of the Ethernet switch or router. You can connect more than one inverter to the same switch/router or to different switches/routers, as needed.
Chapter 6: Setting Up Communication 73 Creating an RS485 Bus Connection The RS485 option enables creating a bus of connected inverters, consisting of up to 31 slave inverters and 1 master inverter. Using this option, inverters are connected to each other in a bus (chain), via their RS485 connectors. The first and last inverters in the chain must be terminated as described on page 75. RS485 wiring specifications: Cable type: Min.
74 Creating an RS485 Bus Connection 3. Pull out the 6-pin RS485 terminal block connector, as shown below: Figure 33: The RS485 terminal block 4. Loosen the screws of pins A(+), B(-), and G on the left of the RS485 terminal block (RS485-1 or RS485-2). Figure 34: RS485 terminal block 5. Insert the wire ends into the G, A and B pins shown above. Use Four- or six-wire twisted pair cable for this connection.
Chapter 6: Setting Up Communication 75 6. For creating an RS485 bus - connect all B, A and G pins in all inverters. The following figure shows this connection schema: Figure 35: Connecting the inverters in a chain NOTE Do not cross-connect B, A and G wires. 7. Tighten the terminal block screws. 8. Check that the wires are fully inserted and cannot be pulled out easily. 9. Push the RS485 terminal block firmly all the way into the connector on the right side of the communication board. 10.
76 Creating an RS485 Bus Connection To connect to the monitoring platform: 1. Designate a single inverter as the connection point between the RS485 bus and the monitoring platform. This inverter will serve as the master inverter. To configure the RS485 bus: All inverters are configured by default as slaves. To configure the master: 1. Verify the ON/OFF/P switch is OFF. 2. Verify that AC is on. 3. Use SetApp to access the Commissioning menu screen as described in Communication on page 53. 4.
Chapter 6: Setting Up Communication 77 Verifying the Connection After connecting and configuring a communication option, perform the following steps to check that the connection to the monitoring server has been successfully established. 1. Access the Status screen: a. If not already ON - turn ON AC to the inverter by turning ON the circuit breaker on the main distribution panel. b.
78 Verifying the Connection Communication LAN Connected RS485-1 RS485-2 SE Slave Modbus NC 2 of 2 Cellular ZigBee N/A NC -Three Phase System Installation Guide MAN-01-00527-1.
Appendix A: Errors and Troubleshooting 79 Appendix A: Errors and Troubleshooting This appendix describes general system problems, and how to troubleshoot them. 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 the SetApp, errors are displayed with codes.
80 Identifying Errors Figure 37: Inverter menu 3. Click the Errors tab. The list is displayed. Figure 38: Inverter details - Error list -Three Phase System Installation Guide MAN-01-00527-1.
Appendix A: Errors and Troubleshooting 81 Troubleshooting Communication Troubleshooting Ethernet (LAN) Communication The possible errors and their troubleshooting are detailed in the following table: Error Message LAN cable disconnected No DHCP Configure Static IP or set to DHCP Cause and Troubleshooting Physical connection fault. Check the cable pinout assignment and cable connection IP settings issue. Check the router and inverter configuration. Consult your network IT.
82 Power Optimizer Troubleshooting 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. 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. 5.
Appendix A: Errors and Troubleshooting Problem 83 Possible cause and troubleshooting Extra power optimizer(s) connected in the string (not applicable to smart modules). Check if an extra power optimizer is connected in the string. If not – proceed to next solution. A module is connected directly to the string, without a power optimizer (not applicable to String voltage is higher than number smart modules).
84 Appendix B: Mechanical Specifications Appendix B: Mechanical Specifications Figure 39: Three phase inverter with bracket - front, side and rear views Figure 40: Inverter mounting bracket -Three Phase System Installation Guide MAN-01-00527-1.
Appendix C: External Fan Maintenance and Replacement 85 Appendix C: External Fan Maintenance and Replacement The inverter has two fans: one is internal and the other is accessible from the outside of the inverter. A fan replacement kit is available from SolarEdge. Figure 41: Inverter external fan Fan Maintenance At least once a year, open the fan screen and clean the accumulated dust using a brush.
86 External Fan Replacement Figure 42: Fan door open 5. Disconnect the fan connector and remove the fan. 6. Connect the fan connector to the new fan. 7. Close the fan door and fasten the cover screws. -Three Phase System Installation Guide MAN-01-00527-1.
Appendix C: External Fan Maintenance and Replacement 1. After powering up the inverter, check the fan status on SetApp: Select Commissioning è Status. ð Three Phase System Installation Guide MAN-01-00527-1.
88 Appendix D: Replacing and Adding System Components Appendix D: Replacing and Adding System Components This appendix includes replacement procedures for the SolarEdge system components. For inverter or Safety Switch replacement, typically only the part to be replaced is supplied (not both inverter and Safety Switch). In this case, the Safety Switch should be disconnected from the inverter as described herein.
Appendix D: Replacing and Adding System Components 89 Figure 43: Conduit nuts 7. Remove the screws securing the inverter to the mounting bracket and remove the inverter from the mounting bracket. NOTE If you remove the old inverter and do not immediately install a new one, then: Lock the Safety Switch in the OFF position using a lock on the switch. Use insulation tape to isolate each of the AC and DC wires. Seal the open conduits using duct tape. 8.
90 Replacing the Safety Switch 2. Turn OFF the Safety Switch and the AC breaker of the distribution panel. 3. Open the inverter cover. 4. Disconnect the DC and AC wires from the inverter. If there are ferrite beads on the DC and AC wires in the inverter, open them and set aside. 5. Unscrew the two conduit nuts in the inverter securing the Safety Switch to the inverter, as shown below: Figure 44: Disconnecting the conduits 6. Open the Safety Switch cover and disconnect the DC and AC wires.
Appendix D: Replacing and Adding System Components 91 Connect the red wire to any of the DC+ terminals in the inverter. Connect the black wire to any of the DC- terminals in the inverter. Figure 45: DC terminals 3. Connect the AC wires according to the labels on the AC terminal blocks, as follows: Wire type Connect to terminal Line 1 L1 Line 2 L2 Line 3 L3 PE (grounding) Neutral N Figure 46: AC terminals 4. Tighten the screws of each terminal with a torque of 0.88-1.1 lb.*ft / 1.2-1.5 N*m.
92 Adding, Removing, or Replacing Power Optimizers Adding, Removing, or Replacing Power Optimizers 1. Turn OFF the inverter ON/OFF/P switch, and wait until the green LED is blinking , indicating that the DC voltage is safe (<50V), or wait five minutes before continuing to the next step. 2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel. 3. Turn OFF the Safety Switch . 4. Disconnect and connect the necessary power optimizers. 5.
Appendix E: Determining the Circuit Breaker Size 93 Appendix E: Determining the Circuit Breaker Size Revision History Version 1.0 February 2019: first release Introduction Inverters should be protected by circuit breakers. This document describes how to determine which circuit breaker to use in three phase commercial installations. Using Transformers in Commercial Three Phase Inverter Installations Using transformers in a commercial installation is optional.
94 Using Transformers in Commercial Three Phase Inverter Installations There are many considerations for selecting the suitable transformer and its associated current limiting devices such as circuit breakers and fuses. The considerations must include at least the following: The transformer should be designed for a typical PV system production profile: high daytime loads with no loads at night.
Appendix E: Determining the Circuit Breaker Size 95 Determining the Size of an Inverter Circuit Breaker This section explains how to determine the rate of a circuit breaker next to an inverter. For an example of an inverter with a circuit breaker next to it see Figure 47. Ensure you have the following parameters before determining the circuit breaker size: The inverter's maximum continuous output current as appears in the datasheet. Factor for the installation's country.
96 Determining the Size of an Inverter Circuit Breaker Table 1: Circuit Breaker Criteria Inverter SE12.5K SE14.4KUS SE15K SE16K SE17K SE25K SE27.6K SE30K SE33.3K SE43.2KUS SE50K SE55K SE66.6K SE66.6KUS SE75K SE82.8K SE100K SE100KUS Max. Continuous Output Current Recommended Circuit Breaker (per Phase) 20A 25A 40A 50A 23A 32A 25.5A 32A 26A 32A 38A 50A 40A 50A 36.
Technical Specifications - Three Phase Inverters (North America) 97 Technical Specifications - Three Phase Inverters (North America) Supported grid OUTPUT Rated AC power output Maximum AC power output AC Output Line Connections AC output voltage minimum(1) nominal-maximum (L-N) AC output voltage minimumnominal-maximum (L-L) 1 AC frequency min-nom-max 1 Max. continuous output current (per Phase) Max. output fault current and duration Inrush current AC (Peak / Duration) Max.
Technical Specifications - Three Phase Inverters (North America) SE9KUS ADDITIONAL FEATURES Supported communication interfaces Inverter Commissioning Rapid Shutdown – NEC 2014 and 2017 690.12 RS485 Surge Protection Smart Energy Management STANDARD COMPLIANCE Safety Grid connection standards Emissions RoHS INSTALLATION SPECIFICATIONS SE10KUS Supplied with the inverter Export Limitation UL1741, UL1741 SA, UL1699B, CSA 22.2, Canadian AFCI according to T.I.L.
Technical Specifications - Three Phase Inverters (North America) Default Trip Limits and Times According to IEEE1547 NOTE The inverters are equipped with adjustable utility protective function set-points, and can be aggregated above 30kW on a single Point of Common Connection. The default settings are in compliance with IEEE1547. Utility authorization is required to change these set-points. Voltage Range (% of Base Voltage) Maximum Clearing Time (Sec) V < 50% 0.16 50 % < V < 88% 2.00 110% < V < 120% 1.
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