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SolarEdge SE25K

SolarEdge SE25K
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Installation Guide
SolarEdge System
Installation Guide
For Europe and APAC
Version 4.1

Table of Contents

Questions and Answers:

SolarEdge SE25K Specifications

General IconGeneral
BrandSolarEdge
ModelSE25K
CategoryInverter
LanguageEnglish

Summary

Support and Contact Information

Handling and Safety Instructions

Important Safety Instructions

Provides critical safety warnings regarding inverter operation, grounding, handling, and specific voltage conditions.

Introducing the SolarEdge Power Harvesting System

Power Optimizer

Explains the function of DC-DC converters for maximizing PV power, their safety features, and data transmission.

Inverter

Describes the inverter's role in converting DC to AC power, receiving monitoring data, and optional DC Safety Unit.

Installing the Power Optimizers

Safety

Lists crucial safety warnings and cautions specific to power optimizer installation, including water exposure and cable cutting.

Installation Guidelines

Provides guidelines for connecting power optimizers, including string length, connector compatibility, and mounting.

Step 1: Mounting the Power Optimizers

Guides on determining mounting locations, drilling, attaching, and recording power optimizer details.

Step 2: Connecting a PV Module to a Power Optimizer

Explains how to connect PV module output connectors to the power optimizer's input connectors.

Step 3: Connecting Power Optimizers in Strings

Details how to construct parallel strings by connecting power optimizers in series, and sealing unused connectors.

Step 4: Verifying Proper Power Optimizer Connection

Describes how to measure string voltage and verify polarity using a voltmeter to ensure correct connection.

Installing the Inverter

Mounting the Inverter

Provides instructions for mounting the inverter vertically or horizontally, including clearance requirements.

Connecting the AC and the Strings to the Inverter

Connecting the Strings to the Inverter

Explains how to connect DC strings from PV modules to the inverter's DC input pairs and notes on string length flexibility.

Commissioning the Installation

Step 1: Activating the System

Details the steps for activating the inverter, including checking switches, inserting the activation card, and verifying the script completion.

Step 2: Pairing Power Optimizers to the Inverter

Explains the process of logically pairing power optimizers to their inverter, which is necessary for power production.

Step 3: Verifying Proper Activation

Guides on verifying system activation by checking inverter LEDs, LCD status, and ensuring connection to the monitoring platform.

User Interface

Inverter Configuration - Setup Mode

Explains how to configure the inverter using the internal LCD user buttons or the external LCD light button.

Status Screens - Operational Mode

Setting Up Communication

Creating an Ethernet (LAN) Connection

Guides on connecting the inverter to a LAN using an Ethernet cable for monitoring platform access.

Creating an RS485 Bus Connection

Explains how to create an RS485 bus for connecting up to 31 slave inverters and 1 master inverter.

Verifying the Connection

Outlines steps to check if the connection to the monitoring server has been successfully established after configuration.

Errors and Troubleshooting

Power Optimizer Troubleshooting

Addresses problems related to power optimizer pairing, string voltage, and connection issues, offering solutions.

Connecting the AC and DC Strings to the DC Safety Unit

Connecting the AC Grid to the Inverter

Details connecting the AC grid to the inverter via the DC Safety Unit, including wire connections and terminal tightening.

Connecting the Strings to the DC Safety Unit

Explains how to connect DC strings to the DC Safety Unit's input terminals, covering both fused and unfused configurations.

SafeDC

Replacing and Adding System Components

Determining the Circuit Breaker Size

Determining the Size of an Inverter Circuit Breaker

Explains how to calculate the circuit breaker size based on inverter output current, country factors, and derating considerations.

Technical Specifications - Three Phase Inverters (Europe & APAC)

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