Weco ESS XTE Series User manual

XTE SERIES
XTE Hybrid Inverter User Manual
-E- Version for European market
230Vac

Preface
Overview
This document mainly introduces the installation, electrical connection, commissioning, maintenance, and fault-handling
methods of the XTE inverter.
Please read this manual carefully before installation and use it to understand the safety information and familiarize yourself
with the functions and features of the XTE inverter.
All the manual details, installation instructions, operation, maintenance, and troubleshooting are intended to be for qualified
electricians and expert installers.
This inverter can be used by the end user (non-expert person) only after proper training is carried out by the installing
company. Before installing and debugging or running any equipment, the user must read and understand all the
instructions contained in this manual and be familiar with the relevant safety symbols.
Readers need to have a certain degree of electrical theory, electrical wiring, and professional mechanical knowledge.
Before installing this product, please read this manual carefully and ensure that the relevant personnel can easily access
and use it.
The contents, pictures, logos, symbols, etc. used in this manual are owned by the company. Non-company personnel are
not allowed to publicly reproduce all or part of the content without written authorization.
Reader object
This manual is mainly intended for:
● Installation and maintenance person (installer).
● User.
Symbol conventions
In order to ensure the safety of people and property during the use of the product, the following warning symbols are
displayed on this manual and the box to remind the operator of the safety issues that must be followed.
Warning symbol
Label
Label Description
Danger!
It is used to warn of imminent dangerous situations that, if not avoided, could result in
death or serious bodily injury.
Warning!
Used to warn of potentially dangerous situations that, if not avoided, could result in
death or serious bodily injury.
Caution!
Used to warn of potentially dangerous situations that, if not avoided, could result in
moderate or minor personal injury.
Note！
Used to convey equipment or environmental safety warning information, which, if not
avoided, may lead to equipment damage, data loss, reduced equipment performance,
or other unpredictable results. "Caution" does not involve personal injury.
Read Info
Used to highlight important/critical information, best practices, tips, etc. "Instructions"
are not safety warning information, and do not involve information about people,
equipment, and environmental injuries.
This label indicates there is high voltage within the product, and touch may cause an
electric shock

Label
Label Description
This symbol indicates that the temperature here is higher than the acceptable range of
the human body, and do not contact in order to avoid personal injury.
This symbol indicates here is the protective grounding (PE) terminal, and solid
grounding is needed to ensure operators’ safety.
CAUTION-RISK of electric shock from energy stored in a capacitor, never operate on the inverter couplers, the
MAINS cables, Battery cables, PV cables, or the PV generator when power is applied.
After switching off the PV, battery, and Mains, always wait for 5 minutes to let the intermediate circuit capacitors
discharge before unplugging DC, the battery, the plug, and MAINS couplers.
When accessing the internal circuit of an inverter, it is very important to wait 5 minutes before operating the
power circuit or demounting the electrolyte capacitors inside the device. Do not open the device beforehand
since the capacitors require time sufficiently discharge!
Surge Protection
Installation of SPDs to protect the inverter against mechanical damage and excessive stress include a surge
arrester in case of a building with an external lightning protection system (LPS) when the separation distance is
kept.
To protect the DC system, a surge suppression device (SPD type2) should be fitted at the inverter end of the DC
cabling and the array located between the inverter and the PV generator, if the voltage protection level (VP) of
the surge arresters is greater than 1100V, an additional SPD type 3 required for surge protection for electrical
devices.
To protect the AC system, surge suppression devices (SPD type2) should be fitted at the main incoming point of
AC supply (at the consumer's cutout), located between the inverter and the meter/distribution system.
All DC cables should be installed to provide as short a run as possible, and positive and negative cables of the
string or main DC supply should be bundled together. Avoiding the creation of loops in the system.
PE Connection and Leakage Current
The end-use application shall monitor the protective conductor by a residual current operated protective device
(RCD) with rated fault current Ifn≤240mA which automatically disconnects the device in case of a fault.
The device is intended to connect to a PV generator with a capacitance limit of approx. 700 nF.

Table of Contents
1 Safety Instructions .................................................................................................................................................................................6
2 Product Introduction..............................................................................................................................................................................9
2.1 Product Introduction .................................................................................................................................................................9
2.2 Description of appearance.......................................................................................................................................................10
2.3 Terminals of inverter ...............................................................................................................................................................10
2.4 Technical Parameters ..............................................................................................................................................................11
2.5 Label Description .....................................................................................................................................................................13
2.6 How it works............................................................................................................................................................................14
3 Storage .................................................................................................................................................................................................18
4 Installation ...........................................................................................................................................................................................19
4.1 Pre-installation inspection.......................................................................................................................................................19
4.2 Tool s list ..................................................................................................................................................................................19
4.3 Select the installation location ................................................................................................................................................20
4.4Install the inverter ....................................................................................................................................................................22
5 Electrical Connections..........................................................................................................................................................................23
5.1 Prepare the cable.....................................................................................................................................................................23
5.2 Open the bottom wiring cover ................................................................................................................................................24
5.3 Back-up: Load1 and Load2 Connection ...................................................................................................................................24
5.4 Grid Connection and Generator Connection...........................................................................................................................25
5.5 Connect the input line of the energy storage device..............................................................................................................26
5.6 PV Connection..........................................................................................................................................................................29
5.7 WiFi Connection.......................................................................................................................................................................30
5.8 CT (current transform).............................................................................................................................................................30
6 System debugging ................................................................................................................................................................................31
6.1 Check before powering on.......................................................................................................................................................31
6.2 System power-up.....................................................................................................................................................................31
6.3 Power down the system..........................................................................................................................................................32
7 Noor Cloud APP Operation ..................................................................................................................................................................33
7.1 App Introduction......................................................................................................................................................................33
7.2 Download and install the app..................................................................................................................................................33
7.3 Register a Noor APP account...................................................................................................................................................33
7.4 Login and Logout of the APP....................................................................................................................................................34
7.5 Build a Power Station Wizard..................................................................................................................................................35
7.6 Add new device........................................................................................................................................................................36
7.7 Check the power station status...............................................................................................................................................37
7.8 Inverter settings.......................................................................................................................................................................39
7.9 Device Information ..................................................................................................................................................................47
7.10 Device management..............................................................................................................................................................48
7.11 Plant Management ................................................................................................................................................................49

8 System Maintenance............................................................................................................................................................................51
8.1 Routine Maintenance ..............................................................................................................................................................51
8.2 Troubleshooting.......................................................................................................................................................................51
9 Inverter Disposal..................................................................................................................................................................................54
9.1 Disassemble the inverter.........................................................................................................................................................54
9.2 Packaging inverters..................................................................................................................................................................54
9.3 Scrap inverters .........................................................................................................................................................................54
Appendix A Grid Standard Code..............................................................................................................................................................55
Appendix B abbreviations .......................................................................................................................................................................56

6
1 Safety Instructions
General security considerations
Note！
⚫This manual is an integral part of the XTE inverter and describes the installation, commissioning, maintenance, and types of
faults that could occur. Please read carefully before the operation.
⚫The personnel responsible for the installation, electrical connection, commissioning, maintenance, and fault handling of XTE
inverter products should be professionally trained, follow the correct operation methods, and have the corresponding
operating qualifications and basic safety operation knowledge.
All operations of this equipment must strictly comply with the relevant equipment precautions and special safety instructions provided
by WECO. The safety warnings listed in the manual represent only those known to WECO, and WECO assumes no responsibility for
violations of general safe operating requirements or safety standards for the design, production, and use of the equipment.
Statement
WECO reserves the right not to provide warranty coverage in any of the following cases:
⚫Shipping damage.
⚫Damage caused by storage conditions not meeting the requirements of the product documentation.
⚫Improper storage, installation, and use of equipment.
⚫Installation and use of equipment by unqualified personnel.
⚫Failure to follow operating instructions and safety warnings in the product and documentation.
⚫Operate in harsh environments beyond what is described in the product and documentation.
⚫Operations that go beyond the parameters specified in the applicable technical specifications.
⚫Unauthorized disassembly, alteration of the product, or modification of software code.
⚫Equipment damage caused by abnormal natural environments (force majeure such as lightning, earthquakes, fires, storms,
etc.).
⚫The warranty period has expired and the warranty service has not been extended.
⚫any installation and operating environment beyond those specified by relevant international standards.
Personnel requirements
Personnel who can perform XTE inverter installation, electrical and gas connection, commissioning, maintenance, fault
handling, and replacement must meet the following conditions:
⚫Operators should have received professional training.
⚫Operators should read this manual in its entirety and master the safety matters related to operations.
⚫Operators should be familiar with the relevant safety specifications of electrical systems.
⚫The operator must be familiar with the working principle and composition of the system and familiar with the user manual
for this product.
⚫During operation, please do not wear metal objects such as rings, watches, key rings, etc., and do a good job of safety
protection (such as wearing insulating gloves, wearing electrician shoes, etc.).
Box identification protection
⚫The markings on the XTE inverter housing contain important information for safe operation. Alteration or damage
is strictly prohibited.
⚫There is a nameplate on the side of the XTE inverter box that contains important parameter information related to
the product. Alteration or damage is strictly prohibited.

7
System installation
Danger!
It is strictly forbidden to operate the XTE inverter with electricity during installation.
⚫The process of lifting or placing the inverter must be carried out slowly and cannot be placed quickly, otherwise
the product may be damaged.
⚫When installing the XTE inverter, make sure it is not electrically connected and energized.
⚫There should be a certain distance between the XTE inverter and the surrounding objects to ensure sufficient
space for installation and heat dissipation. If you have any questions about the installation distance, pleaseconsult
a technical service engineer.
⚫During installation, liquids, debris or conductive particles must be prevented from entering the system, which could
lead to internal short circuits or system failure.
Electrical connection
Danger!
Before electrical connection, please make sure that the XTE inverter is undamaged and in a safe state, otherwise it may
cause electric shock or fire.
⚫l All electrical connections must comply with national electrical standards.
⚫l XTE inverters can only be connected to the grid if the local power department permits it.
⚫The cable for the connection must be firmly connected, well insulated, and be of appropriate specifications.
Operate
Danger!
During the operation of the XTE inverter, there is a high voltage that can cause electric shock, resulting in death, serious
personal injury, or serious property damage. Please strictly follow the safety precautions listed in this manual and other
relevant documents.
⚫When the XTE inverter is first energized, it must be set up by a professional electrical technician. Incorrect settings
may affect the normal operation of the XTE inverter and cause the XTE inverter to be inconsistent with the
certification of the country.
⚫Some components in the XTE inverter box, such as capacitors, still have power after the electricity is cut off and
must wait 5 minutes before operation.
⚫Operate the equipment in accordance with local regulations and laws.

8
Maintenance and replacement
Danger!
During the operation of the XTE inverter, there is a high voltage that can cause electric shock, resulting in death, serious
personal injury, or serious property damage. Therefore, before carrying out any maintenance work, it is necessary to turn
off the power supply of the XTE inverter and operate it in strict accordance with thesafety precautions listed in this manual
and other relevant documents.
⚫Please maintain the XTE inverter if you are familiar with the contents of this manual and have the appropriate tools
and test equipment.
⚫Before maintenance, please turn off the XTE inverter, disconnect the input and output switches, and wait at least
5 minutes for operating the XTE inverter.
⚫During the maintenance period, please try to avoid unrelated personnel entering the maintenance site, and
temporary warning signs or fences must be placed.
⚫The XTE inverter can only be re-energized after the fault is handled, otherwise the fault may expand, or the
equipment may be damaged.
⚫During maintenance, please abide by ESD protection specifications and wear anti-static gloves.
⚫Some components in the XTE inverter, such as capacitors, still have power after the power is cut off and must wait
5 minutes before any operations. Avoid opening cabinet doors in rainy or wet weather conditions to maintain or
repair products.
⚫When carrying out various operations such as equipment maintenance and inspection, relevant personnel need to
take appropriate protective measures, such as wearing noise-proof earplugs, insulating shoes and anti-scald
gloves.

9
2 Product Introduction
2.1 Product Introduction
Function
XTE inverter can convert solar energy into alternating current or can store DC energy in the Energy Storage Battery.
Through the APP, the user can flexibly choose the appropriate working mode according to the actual situation of
photovoltaic, power grid, battery, load, and so on.
Model
This paragraph defines product models: XTE-6K, XTE-8K, XTE-10K, XTE-12K.
Naming convention XTE (using XTE-8K as an example):
Networking applications
XTE – 8K
XTE: European Standard Series
Power output is 8 kW

10
2.2 Description of appearance
Front Side Back
2.3 Terminals of inverter
A
PV DC switch
B
BATTERY input
C
Wi-Fi
D
CAN1/CAN2, BMSCAN/CTL1/CTL2/Type-c upgrade
E
PV1 - PV4 input (4 MPPT)
F
Generator
G
Grid
H
Priority Load
I
PE
J
Ordinary Load
K
LED Bar
L
Start button