SolarEdge SE15K

SolarEdge SE15K

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Installation Guide

SolarEdge System

Installation Guide

For Europe and APAC

Version 4.1

Table of Contents

Questions and Answers:

E
Emily SantiagoSep 10, 2025
What to do if SolarEdge SE15K Inverter string voltage is not 0V but lower than number of optimizers?
- O
  obakerSep 10, 2025
  If the string voltage on your SolarEdge Inverter is not 0V but lower than the number of optimizers, it could be due to: * Power optimizers not connected in the string. Connect all power optimizers. * Modules not connected properly to power optimizer inputs (not applicable to smart modules). Connect the modules to the optimizer inputs. * String reverse polarity. Check the string polarity using a voltmeter and correct if needed.
R
Renee GarciaAug 23, 2025
What to do if SolarEdge SE15K gateway not responding?
- K
  kimberly65Aug 23, 2025
  If the gateway on your SolarEdge Inverter is not responding, it could be due to a failed ping to the router. Check the physical connection to the switch or router and ensure the link LED at the router/switch is lit, indicating a physical link. If the connection is OK, contact your network IT. Otherwise, replace the cable or change it from a cross to a straight connection.
E
Eric AllenAug 25, 2025
How to fix SolarEdge SE15K Inverter pairing failed?
- J
  jason61Aug 25, 2025
  If pairing fails on your SolarEdge Inverter, it might be because the power optimizers are shaded. If you've connected the inverter to the monitoring platform, try pairing remotely during sunlight. Ensure the inverter's ON/OFF switch is ON and that S_OK appears on the status screen.
R
Ronnie RileyAug 27, 2025
How to fix DHCP Failed or Invalid DHCP Config on SolarEdge Inverter?
- S
  Sherry GonzalesAug 27, 2025
  If your SolarEdge Inverter shows 'DHCP Failed' or 'Invalid DHCP Config', it indicates an issue with the IP settings. To resolve this, check both the router and inverter configurations.
Z
Zachary FrancoAug 27, 2025
How to fix LAN Disconnected on SolarEdge SE15K?
- D
  Dylan BridgesAug 27, 2025
  If your SolarEdge Inverter shows 'LAN Disconnected', it indicates a fault with the physical connection. Check the cable pin-out assignment and cable connection.
N
Nancy MillerAug 29, 2025
Why SolarEdge Inverter has no connection to SolarEdge servers?
- C
  Curtis RoseAug 29, 2025
  If your SolarEdge Inverter cannot connect to SolarEdge servers, the ping or connection to the SolarEdge server may have failed. Verify the SolarEdge server address under the LAN Configuration sub-menu. The address should be prod.solaredge.com and the port should be 22222. Check with your network administrator to see if a firewall or other device is blocking the transmission.
R
Robert RileySep 18, 2025
Why is my SolarEdge SE15K Inverter PV string voltage lower than expected?
- T
  Todd ReidSep 18, 2025
  If your SolarEdge Inverter's PV string voltage is not 0V but lower than the number of Power Optimisers, the possible causes are: some Power Optimisers are not connected in the PV string, panels are not connected properly to Power Optimiser inputs, or the PV string has reverse polarity. To solve this, connect all Power Optimisers, connect the modules to the Power Optimiser inputs, and check the PV string polarity using a voltmeter and correct if needed.
P
Patricia WilliamsSep 22, 2025
How to fix 0V PV string voltage on SolarEdge SE15K?
- V
  voliverSep 22, 2025
  If the PV string voltage on your SolarEdge Inverter is 0V, it could be due to disconnected Power Optimiser outputs. Ensure all Power Optimiser outputs are properly connected.
M
Megan GarciaSep 7, 2025
What to do if G Server Ping Failed on SolarEdge SE15K?
- J
  Jared FrenchSep 7, 2025
  If your SolarEdge Inverter displays 'G Server Ping Failed', it indicates that the ping to google.com has failed. To resolve this, connect a laptop and check for internet connectivity.
P
Patricia SnowSep 4, 2025
What to do if Gateway Ping Failed on SolarEdge SE15K Inverter?
- A
  Alexander Kirk DDSSep 4, 2025
  If your SolarEdge Inverter shows 'Gateway Ping Failed', the ping to the router has failed. Check the physical connection to the switch or router and ensure the link LED at the router or switch is lit, indicating a physical link. If the connection is fine, replace the cable or change it from cross to straight connection.

SolarEdge SE15K Specifications

General

Model	SE15K
Dimensions	315 x 678 x 262 mm (12.4 x 26.7 x 10.3 in)
Weight	36.2 kg (79.8 lbs)
AC Nominal Power	15000 W
AC Frequency	50 / 60 Hz
DC Max. Input Voltage	1000V
AC Output Power	15000 W
Operating Temperature Range	-25°C to +60°C
Communication	Ethernet, RS485, Wi-Fi (optional)
Communication Interfaces	Ethernet, RS485, Wi-Fi (optional)
Warranty	12 years

Summary

Handling and Safety Instructions

Important Safety Instructions

Chapter 2: Installing the Power Optimizers

Safety

Safety notes and warnings specific to power optimizer installation.

Installation Guidelines

Step 1: Mounting the Power Optimizers

Procedures for physically mounting power optimizers to the support structure.

Step 2: Connecting a PV Module to a Power Optimizer

How to connect PV modules to the power optimizer input connectors.

Step 3: Connecting Power Optimizers in Strings

How to connect multiple power optimizers in series to form strings.

Step 4: Verifying Proper Power Optimizer Connection

Method to check correct wiring and voltage of power optimizer strings.

Chapter 3: Installing the Inverter

Mounting the Inverter

Procedures for mounting the inverter unit securely.

Chapter 4: Connecting the AC and the Strings to the Inverter

Grid Connection Guidelines

Connecting the Strings to the Inverter

How to connect DC strings from PV modules to the inverter.

Chapter 5: Commissioning the Installation

Step 1: Activating the System

Procedures for system activation using the activation card.

Step 2: Pairing Power Optimizers to the Inverter

How to logically connect power optimizers to their inverter.

Step 3: Verifying Proper Activation

How to check if the system has been activated correctly.

Chapter 6: User Interface

Setup mode

Error messages

Inverter Configuration - Setup Mode

Detailed guide to configuring the inverter via its interface.

Configuring the Inverter Using the Internal LCD User Buttons

Steps for configuration using the physical buttons.

Configuration Menu Options

Country and Grid

Communication

Status Screens - Operational Mode

Telemetry Status

Server Communication Status

Chapter 7: Setting Up Communication

Communication Options

RS485

Wi-Fi

Cellular (GSM, CDMA)

ZigBee

Creating an Ethernet (LAN) Connection

Steps to connect the inverter using an Ethernet cable.

Creating an RS485 Bus Connection

How to set up a bus connection using RS485.

To connect to the monitoring platform

Connecting the master inverter to the monitoring platform.

Verifying the Connection

Appendix A: Errors and Troubleshooting

Troubleshooting Communication

Specific steps for troubleshooting communication errors.

Power Optimizer Troubleshooting

Appendix C: Connecting the AC and DC Strings to the DC Safety Unit

Connecting the AC Grid to the Inverter

How to connect AC power to the inverter via the DC Safety Unit.

Connecting the Strings to the DC Safety Unit

Appendix D: SafeDC

Appendix F: Replacing and Adding System Components

Replacing an Inverter

Replacing the DC Safety Unit

Adding, Removing, or Replacing Power Optimizers

Appendix G: Determining the Circuit Breaker Size

Determining the Size of an Inverter Circuit Breaker

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