SolarEdge SE K Series User manual

Installation Guide
Three Phase Inverters with
Synergy Technology
with SetApp Configuration
PN: SExxK-xxxxIxxxx
For North America
Version 1.3

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. SolarEdge
reserves the right to make changes to the material at any time and without notice. You
may refer to the SolarEdge web site (https://www.solaredge.com/us/) for the most
updated version.
All company and brand products and service names are trademarks or registered
trademarks of their respective holders.
Patent marking notice: see https://www.solaredge.com/us/patent
The general terms and conditions of delivery of SolarEdge shall apply.
The content of these documents is continually reviewed and amended, where
necessary. However, discrepancies cannot be excluded. No guarantee is made for the
completeness of these documents.
The images contained in this document are for illustrative purposes only and may vary
depending on product models.
This manual describes installation of theThree Phase Inverter with Synergy Technology.
Read this manual before you attempt to install the product, and follow the instructions
throughout the installation process. If you are uncertain about any of the requirements,
recommendations, or safety procedures described in this manual, contact SolarEdge
Support immediately for advice and clarification. The information included in this
manual is accurate at the time of publication. However, the product specifications are
subject to change without prior notice. In addition, the illustrations in this manual are
meant to help explain system configuration concepts and installation instructions. The
illustrated items may differ from the actual items at the installation location.
FCC Compliance
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to part 15 of the FCC Rules.
Disclaimers1
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

These limits are designed to provide reasonable protection against harmful
interference. 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. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, you are encouraged to try to correct the interference by one or
more of the following measures:
Increase the separation between the equipment and the receiver.
Reorient or relocate the receiving antenna.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for
compliance may void the user’s authority to operate the equipment.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
2 FCC Compliance

Revision History
Version 1.3 (Apr. 2023)
Maintenance chapter was added.
Version 1.2, September 2022
Change in connection method of DC wires to a Synergy Manager with DC wire
terminals and updated Rapid Shutdown (PVRSS) initiation. Added mounting brackets
dimension drawings.
Version 1.1, August 2021: Initial release
Revision History3
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

Contents
Disclaimers 1
Important Notice 1
FCC Compliance 1
Revision History 3
HANDLING AND SAFETY INSTRUCTIONS 6
Safety Symbols Information 6
IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES 7
Photovoltaic Rapid Shutdown System Requirements 13
Photovoltaic Hazard Control Application 15
Chapter 1: Introducing the SolarEdge Power Harvesting System 17
Power Optimizer 17
Three Phase Inverter with Synergy Technology 18
Designer 19
Monitoring Platform 19
SetApp 19
Installation Tools and Material List 19
Installation Procedure 20
Chapter 2: Installing the Power Optimizers 21
Safety 21
Package Contents 23
Installation Guidelines 23
Step 1: Mounting and Grounding the Power Optimizers 27
Step 2: Connecting a PV module to a Power Optimizer 31
Step 3: Connecting Power Optimizers in PV strings 31
Step 4: Verifying Proper Power Optimizer Connection 33
Chapter 3: Installing the Synergy Manager and Synergy Units 34
Synergy Manager Package Contents 34
Synergy Unit Package Contents 34
Identifying the Units 34
Front Interface of Synergy Manager 35
Inverter Interconnection Cable Interfaces 39
Synergy Manager External Cable Interface 40
Synergy Unit Interface Connectors 40
Drilling Conduit Holes 41
Mounting and Connecting the Synergy Manager and Synergy Units 42
Chapter 4: Connecting PV Modules and AC to the Synergy Manager 47
Grid Connection Guidelines 47
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
4 Revision History

Connecting PV Modules to the Synergy Manager 48
Connection Methods 50
Connecting PV Strings to the Synergy Manager 52
Connecting PV Arrays to the Synergy Manager 54
Connecting Ground and AC Wires to the Synergy Manager 56
Chapter 5: Setting Up Communication with the Monitoring Platform 61
Communication Options 61
Communication Connectors 62
Creating an Local Area Network (LAN) Connection 65
Creating an RS485 Bus Connection 70
RS485 Bus Configuration 73
Verifying the Connection 74
Chapter 6: Activating, Commissioning and Configuring the System 75
On-grid Commissioning of the inverter 76
Step 3: Verifying Proper Activation and Commissioning 79
Pre-commissioning (Off-Grid) 80
Reporting and Monitoring Installation Data 82
Signaling Options 83
Appendix A: Errors and Troubleshooting 85
Identifying Errors 85
Power Optimizer Troubleshooting 86
Troubleshooting Communication 88
Isolation Fault 89
Appendix B: Maintenance 90
Routine Maintenance of the Inverter 90
Monitoring the Solar System Performance 93
Appendix C: Adding Optional Components 95
AC Surge Protection Device (SPD) 95
DC Surge Protection Device (SPD) 95
Cellular Plug-in 95
Appendix D: Mechanical Specifications 97
Appendix E: Interconnection Standards 99
Performance Categories and Interconnection Standards 99
Response to Abnormal Voltages and Frequencies 99
Enter Service Settings 100
Grid Support Functions 100
Appendix F: Immunity Standards 102
Revision History5
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

HANDLING AND SAFETY INSTRUCTIONS
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. It calls attention to a procedure that, if not correctly
performed or adhered to, could result in injury or loss of life. Do not proceed
beyond a warning note until the indicated conditions are fully understood and
met.
AVERTISSEMENT!
Dénote un risque: il attire l'attention sur une opération qui, si elle n'est pas
faite ou suivi correctement, pourrait causer des blessures ou un danger de
mort. Ne pas dépasser une telle note avant que les conditions requises soient
totallement comprises et accomplies.
CAUTION!
Denotes a hazard. It calls attention to a procedure that, if not correctly
performed or adhered to, could result in damage or destruction of the
product. Do not proceed beyond a caution sign until the indicated conditions
are fully understood and met.
ATTENTION!
Dénote un risque: il attire l'attention sur une opération qui, si elle n'est pas
faite ou suivi correctement, pourrait causer un dommage ou destruction de
l'équipement. Ne pas dépasser une telle note avant que les conditions requises
soient totallement comprises et accomplies.
NOTE
Denotes additional information about the current subject.
IMPORTANTSAFETYFEATURE
Denotes information about safety issues.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
6 HANDLING AND SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS /
CONSIGNES DE SÉCURITÉ IMPORTANTES
SAVETHESEINSTRUCTIONS / CONSERVEZ CES INSTRUCTIONS
Warning!
To reduce the risk of injury, read all instructions in this document.
 AVERTISSEMENT!
 Pour réduire le risque de blessure, lisez toutes les instructions de ce document.
WARNING!
When servicing or replacing SolarEdge equipment, instructions in the
SolarEdge Inverter Installation Guide must be followed to maintain the integrity
of the PV hazard control system. SolarEdge Power Optimizers and/or inverters
may only be replaced with SolarEdge Power Optimizers and/or inverters. Third
party equipment is not compatible with SolarEdge equipment.
WARNING!
Using this equipment in a manner not specified by SolarEdge in this document
may impair the protection provided by this equipment.
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.
 AVERTISSEMENT!

Ne pas ouvrir le couvercle de l'onduleur avant d'avoir coupé l'interrupteur situé
en dessous de l'onduleur. Cela supprime les tensions CC et CA de l'onduleur.
Attendre cinq minutes avant d’ouvrir le couvercle. Sinon, il y a un risque de choc
électrique provenant de l'énergie stockée dans le condensateur.

WARNING!
Before operating the inverter, ensure that the inverter is grounded properly.
This product must be connected to a grounded, metal, permanent wiring
system, or an equipment-grounding conductor must be run with the circuit
conductors and connected to the equipment grounding terminal or lead on the
product.
AVERTISSEMENT!

Avant d'utiliser l'onduleur monophasé, assurez-vous que l'onduleur est
IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES7
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

correctement mis à la terre. Ce produit doit être raccordé à un système de
câblage fixe, métallique, l'équipement-le conducteur de mise à la terre doit être
exécuté avec les conducteurs de circuit et raccordé à l'équipement borne de
mise à la terre ou de plomb sur le produit.
WARNING!
Opening the inverter and repairing or testing under power must be performed
only by qualified service personnel familiar with this inverter.
 AVERTISSEMENT!

L’unité ne doit être ouverte que par un technicien qualifié dans le cadre de
l'installation et de la maintenance.

Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
8 IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES

WARNING!
The Safety Unit 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. This
system does not include an isolation transformer and should be installed with
an ungrounded PV array in accordance with the requirements of NEC Articles
690.35 and 690.43 National Electric Code, ANSI/NFPA 70, 2011 (and Canadian
Electrical Code, Part I, for installations in Canada).
Equipment grounding is the responsibility of the installer and must be
performed in accordance with all applicable Local and National Codes.
 AVERTISSEMENT!

Les circuits d’entrée et de sortie de l’onduleur sont isolés de l’enveloppe. Ce
système n’inclut pas d’isolation galvanique (transformateur) et devra être
installé sans mise à la terre du champ PV et en accord avec les articles 690.35 et
690.43 du National Electric Code (NEC), ANSI/NFPA 70, 2011 (et du Code
Electrique Canadien, Partie 1, pour les installations faites au Canada).
La mise à la terre des équipements est la responsabilité de l’installateur et doit
être faite en accord avec les toutes les règles locales et nationales applicables.
WARNING!
SafeDC complies with IEC60947-3 when installing the system with a worst case
SafeDC voltage (under fault conditions) < 120V.
The worst case voltage is defined as: Voc, max+ (PV string Length-1)*1V, where:
Voc,max = Maximum Voc (at lowest temperature) of the PV modules in the PV
string (for a PV string with multiple modules, use the max value)
PV string Length = number of Power Optimizers in the PV string
WARNING!
Solaredge inverters for the 480V L-L grid are rated above 750V. As such
installers are required to mark " DANGER — HIGH VOLTAGE" adjacent to each
DC wiring compartment.
IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES9
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

NOTE
Utility interconnection may require approval from the authority having
jurisdiction.
Approval from the authority having jurisdiction is required for making
adjustments to utility interactive setpoints.
NOTE
Solaredge inverters always opens a disconnecting means when the inverter
ceases to deliver power as a result of abnormal voltage or frequency conditions
or in response to a detected unintentional island.
NOTE
The current unbalance shall be defined as the maximum deviation of line
current on any phase, from the average line current of all phases, expressed as a
percentage.
The measured maximum inverter current unbalance is as specified in the below
table:
Model % Current unbalance
phase A
% Current unbalance
phase B
% Current unbalance
phase C
SE43.2K 2.0082 0.0171 1.9908
SE50K 1.7511 0.0978 1.8489
SE66.6K 1.3706 0.0966 1.274
SE80K 1.2938 0.0596 1.2342
SE100K 2.0559 0.1449 1.911
SE110K 1.9407 0.0894 1.8513
SE120K 1.9407 0.0894 1.8513
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.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
10 IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES

CAUTION!
This unit must be operated according to the technical specification datasheet
provided with the unit.
 ATTENTION!

Cette unité doit être utilisée selon les spécifications de fonctionnement, comme
décrit dans la dernière fiche technique des spécifications.
CAUTION!
HEAVY OBJECT. To avoid muscle strain or back injury, use proper lifting
techniques, and if required - a lifting aid.
ATTENTION!
Objet lourd. Pour éviter la fatigue musculaire ou des blessures au dos, utilisez
des techniques de levage appropriées et, si nécessaire - un auxiliaire de levage
lors du retrait.
NOTE
This inverter is provided with an IMI (Isolation Monitor Interrupter) for ground
fault protection.
NOTE
The state of the ungrounded PV array may temporarily changed during
Isolation tests (resistor is connected between DC+ and DC- and GND points)
and PID rectifier operation (small resistance is connected between DC- and
GND points).
NOTE
The inverter is rated for:
• Overvoltage category: IV
• Pollution degree: 2
NOTE
The symbol appears at grounding points on the SolarEdge equipment. This
symbol is also used in this manual.
IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES11
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

NOTE
SolarEdge inverters can be installed in sites with an alternative power source
such as a generator. SolarEdge requires installing a physical or electronic
interlock, which will signal to the inverter when the grid has been disconnected.
Interlock procurement, installation, maintenance and support are the
responsibility of the installer. Damage to the inverter due to incorrect interlock
installation or use of an interlock that is incompatible with the SolarEdge
system will render the SolarEdge warranty invalid.
For more information on connecting an alternative power source
to SolarEdge inverter, refer to
https://www.solaredge.com/sites/default/files/se-inverter-
support-of-voltage-sources.pdf.
All SolarEdge inverters incorporate a certified, built-in Ground Fault Current Interrupter
(GFDI). The GFDI protects against electrocution in case of a malfunction in the PV array,
DC cables, or DC section of the inverter. The GFDI in the SolarEdge inverter can detect
current leakage on the DC side. There are two trip thresholds for the GFDI. The lower
threshold, is used to protect against rapid changes in current leakage - typicaly due to
direct contact by people. The higher threshold, detects slowly rising leakage currents, in
the grounding conductors and limit the currents to ensure fire safety. The default
current value for high speed personnel protection is 30mA. The default current value for
lower speed fire safety, per unit, is 300mA. The same detection is also used for
measuring the resistance of the insulation of the PV array for verifing it is higher than a
pre-configured value.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
12 IMPORTANT SAFETY INSTRUCTIONS / CONSIGNES DE SÉCURITÉ
IMPORTANTES

Photovoltaic Rapid Shutdown System Requirements
This section is applicable to all Three Phase Inverters with Synergy Technology having
Synergy Units marked with “R” in the part numbers: SESUK-USRxxxxx.
WARNING!
THIS PHOTOVOLTAIC RAPID SHUTDOWN SYSTEM (PVRSS) INCORPORATES
ONE OR MORE PIECES OF EQUIPMENT THAT EXERCISE THE RAPID
SHUTDOWN CONTROL OF PV SYSTEM CONDUCTORS REQUIRED BY SECTION
690.12 OF THE NEC (NFPA 70). OTHER EQUIPMENT INSTALLED IN OR ON THIS
PV SYSTEM MAY ADVERSELY AFFECT THE OPERATION OF THIS PVRSS. IT IS
THE RESPONSIBILITY OF THE INSTALLER TO ENSURE THAT THE COMPLETED
PV SYSTEM MEETS THE APPLICABLE RAPID SHUT DOWN FUNCTIONAL
REQUIREMENTS. THIS EQUIPMENT MUST BE INSTALLED ACCORDING TO THE
MANUFACTURER’S INSTALLATION INSTRUCTIONS.
SolarEdge inverters and power optimizers installed together form a photovoltaic
rapid shutdown system (PVRSS). All inputs and outputs of the inverter and power
optimizers comply with photovoltaic rapid shutdown requirements for controlled
conductors both inside and outside the PV array boundary. To form a PV rapid
shutdown system, no more than 30 power optimizers should be installed in series.
Each power optimizer will output around 1 Vdc when rapid shutdown is initiated.
Rapid shutdown time limit is 30 Sec.
This SolarEdge system is compatible with the Grid support interactive compatible
functionality.
All DC and AC conductors served by the power optimizers and inverters are
controlled by the photovoltaic rapid shutdown system. The AC branch circuit
conductors serving the inverter may remain energized until the AC service panel is
de-energized. Installers must provide signage complying with Section 690.56(C) of
the NEC (NFPA 70).
Buildings with rapid shutdown PV systems, complying with NEC 690.56(C), shall have
permanent labels as described in 690.56(C)(1) through (C)(2):
(1)(a) For PV systems that shut down the array and conductors leaving the array:
The title "SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN" shall
utilize capitalized characters with a minimum height of 3/8 in. in black on yellow
background, and the remaining characters shall be capitalized with a minimum
height of 3/16 in. in black on white background.
Photovoltaic Rapid Shutdown System Requirements13
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

(2) A rapid shutdown switch shall have a label located on or no more than 3 ft
from the switch that includes this wording. The label shall be reflective, with all
letters capitalized and having a minimum height of 3/8 in., in white on red
background.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
14 Photovoltaic Rapid Shutdown System Requirements

Photovoltaic Hazard Control Application
SolarEdge commercial optimizers and inverters have been evaluated and listed to UL
3741 and may be used to form a PV hazard control system that utilizes SolarEdges PV
rapid shutdown system to comply with NEC 690.12. Multiple modules may be
connected in series to the optimizer input without exceeding the input voltage rating of
the optimizer (125V dc). The diagram below depicts a typical PV hazard control system
using multiple PV modules in series connected to optimizers. Installation instructions,
warnings and cautions in this installation guide must be followed to comply with Local
codes . The PVRSS shall be installed by qualified persons in accordance with the
installation instructions and all applicable installation codes and standards.
Power optimizer models with input Voltage up to 125Vdc, when used with SolarEdge
three phase inverters and DC safety switches listed and marked with PVRSS, may be
used to form a Listed Photovoltaic Hazard Control System.
NOTE
Power optimizer models compliant with SolarEdge PV Hazard Control System:
UL3741 listed models as noted on power optimizer datasheet.
Photovoltaic Hazard Control Application15
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx


WARNING!
Upon servicing replacing equipment, instructions in this installation guide must
be followed to maintain the integrity of the PV hazard control system.
SolarEdge commercial optimizers and three phase inverters should only be
replaced with SolarEdge commercial optimizers and inverters. Third party
equipment is not compatible.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
16 Photovoltaic Hazard Control Application

Chapter 1: Introducing the SolarEdge Power
Harvesting System
The SolarEdge power harvesting solution is designed to maximize the power output
from any type of solar Photovoltaic (PV) installation while reducing the average cost per
Watt. Figure 1 shows and the following sections describe the components of the
SolarEdge power harvesting system.

Figure 1: The SolarEdge power harvesting system components
Power Optimizer
The Power Optimizers are DC-DC converters connected to PV modules to maximize
power harvesting by performing independent Maximum Power Point Tracking (MPPT)
at the module level.
The Power Optimizers regulate the PV string Voltage at a constant level, regardless of
PV string length and environmental conditions.
The Power Optimizers include a safety Voltage mechanism that automatically reduces
the output of each Power Optimizer to 1 Vdc in the following cases:
During fault conditions
The Power Optimizers are disconnected from the inverter
Chapter 1: Introducing the SolarEdge Power Harvesting System17
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx

The inverter ON/OFF/P switch is turned OFF
The inverter AC breaker is turned OFF
Each power optimizer also transmits module performance data over the DC power line
to the inverter.
Two types of power optimizers are available:
Module add-on Power Optimizer – connected to one or more modules
Smart modules - the Power Optimizer is embedded into a module
Three Phase Inverter with Synergy Technology
The Three Phase Inverter with Synergy Technology (referred to as 'inverter' in this
manual) efficiently converts DC power from the PV modules into AC power that can be
fed into the main ACservice of the site and from there to the grid. The inverter also
receives the monitoring data from each Power Optimizer and transmits it to the
SolarEdge Monitoring platform (requires a land-line or cellular connection to the
Internet).
The inverter is comprised of two or three Synergy unit inverters (depending on the
model) accompanied an external Synergy Manager unit. The Inverter may include two
or three Synergy Units, depending on the inverter's model.
The Synergy Units are connected to the Synergy Manager via AC, DC and
communication cables.
Each Synergy Unit operates independently and continues to work in case others
stopped operating.
A chain of up to 31 inverters can be set to operate together via Modbus on RS485 line.
When setting a chain of inverters, the inverter that manages communication interface
to the internet is called Leader and the rest are Followers.
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx
18 Three Phase Inverter with Synergy Technology

Figure 2: Synergy Manager with three Synergy Units
Designer
Designer recommends inverter and Power Optimizer selection per site size and enables
report generation. You can create a project in Designer and export the site design with
the PV array layout to the monitoring platform.
Monitoring Platform
The monitoring platform enables monitoring the technical and financial performance of
one or more SolarEdge sites. It provides past and online information on the system
performance, both at the system and PV module levels.
SetApp
SetApp is a mobile application that enables activating and configuring the inverter
through a smartphone or any mobile device.
Installation Tools and Material List
Standard tools can be used during the installation of the SolarEdge system.
The following recommend tools is required for installation:
Allen screwdriver for 5mm screw type for the inverter cover, Synergy Manager cover,
and inverter side screws
Standard flat-head screwdrivers set
Non-contact Voltage detector
Chapter 1: Introducing the SolarEdge Power Harvesting System19
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx