Power Solid PSiO125000W3 User manual

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Notice
The purchased products, services and features are stipulated by the contract made the customer. All or part
of the products, services and features described in this document may not be within the purchase scope or
the usage scope. Unless otherwise specification in the contract, all statements, information, and
recommendations in this document are provided “AS IS” without warranties, guarantees or representations of
any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute a warranty of any kind, express or implied.

Foreword
String PV Grid-tied Inverter PSiO-W3#1100VPVK Series
(100000-125000)
User Manual
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Foreword
Summaries
Thank you for choosing the PSIO-W3#1100VPVK series (100000-125000) string PV grid-tied
inverter (Hereinafter referred to as inverter)!
This document gives a description of the inverter, including appearance, features, working principles,
installation, electrical connection, operation, maintenance and storage, etc.
Please save the manual after reading, in order to consult in the future.
The figures in this manual are just for reference, for details please see the actual product.
Applicable Model
PSIO100000W3#1100VPVK
PSIO125000W3#1100VPVK
Symbol Conventions
The manual quotes the safety symbols, these symbols used to prompt users to comply with safety
matters during installation, operation and maintenance. Safety symbol meaning as follows.
Symbol Description
Alerts you to a high risk hazard that could, if not avoided, result in
serious injury or death.
Alerts you to a medium or low risk hazard that could, if not avoided,
result in moderate or minor injury.
Alerts you to a potentially hazardous situation that could, if not
avoided, result in equipment damage, data loss, performance
deterioration, or unanticipated results.

String PV Grid-tied Inverter PSiO-W3#1100VPVK Series
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Symbol Description
Anti-static prompting.
Be care electric shock prompting.
Provides a tip that may help you solve a problem or save time.
Provides additional information to emphasize or supplement
important points in the main text.
Product standard: Q/XMHS 003
Change History
Changes between document issues are cumulative. The latest document issue contains all the changes
made in earlier issues.
Issue 001 (2020-09-03)
First issue.

Contents
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Contents
1 Safety Description.........................................................................................................................1
1.1 Safety Announcements.....................................................................................................................................1
1.1.1 Use Announcements................................................................................................................................1
1.1.2 PV String Protection ...............................................................................................................................3
1.1.3 ESD Protection........................................................................................................................................3
1.1.4 Grounding Requirements........................................................................................................................3
1.1.5 Moistureproof Protection........................................................................................................................4
1.1.6 Warning Mark Setting.............................................................................................................................4
1.1.7 Electrical Connection..............................................................................................................................4
1.1.8 Measurement Under Operation...............................................................................................................5
1.2 Operator Requirements ....................................................................................................................................5
2 Overview.........................................................................................................................................6
2.1 Product Intro.....................................................................................................................................................6
2.1.1 Features...................................................................................................................................................7
2.2 Apperance and Structure ..................................................................................................................................7
2.2.1 Apperance ...............................................................................................................................................7
2.2.2 Operation Panel.......................................................................................................................................8
2.2.3 Bottom Layout........................................................................................................................................9
2.2.4 Size ....................................................................................................................................................... 11
2.3 Working Principle........................................................................................................................................... 11
2.4 Communication.............................................................................................................................................. 11
2.4.1 Ethernet Communication ......................................................................................................................12
2.4.2 RS485 Communication.........................................................................................................................12

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2.4.3 WIFI/GPRS Communication (Optional)...............................................................................................13
2.4.4 PLC Communication (Optional)...........................................................................................................14
2.4.5 PID Function (Optional) .......................................................................................................................16
3 Installation....................................................................................................................................18
3.1 Installation Process.........................................................................................................................................18
3.2 Installation Tools............................................................................................................................................18
3.3 Selection of Installation Site ..........................................................................................................................20
3.3.1 Installation Environment.......................................................................................................................20
3.3.2 Installation Clearance............................................................................................................................21
3.3.3 Requirements for Installation Carrier....................................................................................................23
3.3.4 Installation Method...............................................................................................................................23
3.4 Transporting, Unpacking and Checking.........................................................................................................24
3.4.1 Transporting..........................................................................................................................................24
3.4.2 Unpacking and Checking......................................................................................................................27
3.5 Inverter Installation........................................................................................................................................27
3.5.1 Bracket Installation...............................................................................................................................27
3.5.2 Wall Mounting ......................................................................................................................................31
3.6 Electrical Connection.....................................................................................................................................36
3.6.1 Safety Announcements..........................................................................................................................36
3.6.2 Requirements for Wire..........................................................................................................................37
3.6.3 External Grounding Connection ...........................................................................................................37
3.6.4 AC Output Wiring.................................................................................................................................40
3.6.5 Internal Grounding Connection.............................................................................................................44
3.6.6 PV String Input Wiring .........................................................................................................................45
3.6.7 WIFI/GPRS Communication Connection (Optional) ...........................................................................50
3.6.8 COM. Communication Connection ......................................................................................................51
3.7 Check the Installation.....................................................................................................................................54
4 Startup and Shutdown ...............................................................................................................55
4.1 Check Before Startup.....................................................................................................................................55

Contents
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4.2 Start Inverter...................................................................................................................................................55
4.3 Shut Down Inverter........................................................................................................................................56
5 Maintenance and Troubleshooting .........................................................................................57
5.1 Maintenance...................................................................................................................................................57
5.1.1 Maintenance Details and Period............................................................................................................57
5.1.2 Maintenance Guide...............................................................................................................................58
5.2 Troubleshooting..............................................................................................................................................61
6 Stop Running, Dismantle, Discard Inverter..........................................................................64
6.1 Stop Running..................................................................................................................................................64
6.2 Dismantle the Inverter....................................................................................................................................65
6.3 Discard the Inverter........................................................................................................................................65
7 Package, Transportation, Storage.............................................................................................66
7.1 Package ..........................................................................................................................................................66
7.2 Transportation ................................................................................................................................................66
7.3 Storage ...........................................................................................................................................................66
A Technical Specifications...........................................................................................................68
B Quality Assurance ......................................................................................................................73
C Acronyms and Abbreviations..................................................................................................75

String PV Grid-tied Inverter PSiO-W3#1100VPVK Series
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1 Safety Description
This chapter mainly describes the safety announcements. Prior to performing any work on the device,
please read the user manual carefully, follow the operation and installation instructions and observe
all danger, warning and safety information.
1.1 Safety Announcements
This section mainly describes the safety announcements when operation and maintenance. For details,
please refer to safety description in relevant chapters.
Before operation, please read the announcements and operation instructions in this section carefully
to avoid accident.
The promptings in the user manual, such as "Danger", "Warning", "Caution", etc. don't include all
safety announcements. They are just only the supplement of safety announcements when operation.
Any device damage caused by violating the general safety operation requirements or safety standards
of design, production, and usage will be out of guarantee range.
1.1.1 Use Announcements
Don't touch terminals or conductors that connected with grid to avoid lethal risk！

1 Safety Description
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There is no operational part inside the inverter. Please do not open the crust of the inverter by
yourself, or it may cause electric shock. The device damage caused by illegal operation is out of the
guarantee range.
After disconnect the input and output of the inverter, there still has residual energy in the storage
capacitor, which may cause electric shock. Do not perform the maintenance until all power sources
are switched off for 30 minutes.
Please do not put fingers or tools into the rotating fans to avoid human injury or device damage.
The surface temperature of the inverter may reach to 75℃. During running, please don't touch the
surface to avoid scald.
No liquid or other objects are allowed to enter the inverter, or, it may cause inverter damage.