Soleil SRT 75K Manuel utilisateur

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 1 of 74 +FR

Soleil SRT 75K-125K

Soleil SPX 136K-150K 3ph

String PV Grid-tied Inverter

User Manual

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 2 of 74 +FR

Notice

The purchased products, services and features are stipulated by the contract made between SIEL and 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.

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 3 of 74 +FR

Foreword

Summaries

Thank you for choosing the SRT (75K-125K) and SPX (136K-150K) series 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, storage, etc.

Please save the manual after reading, in order to consult it in the future.

The figures in this manual are just for reference, for details please see the actual product.

Applicable Models

⚫SRT 75K-125K – SPX 136K-150K

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 will, if not avoided, result in

serious injury or death.

Alerts you to a medium low risk hazard that could, if not avoided,

result in moderate or minor injury.

Alerts you to a low-risk hazard that could, if not avoided, result in

minor injury.

Anti-static prompting.

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 4 of 74 +FR

Symbol

Description

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.

 
IV438E REV.01 Issued: 2022/11/09                        User Manual Soleil SRT/SPX 75K-150K                       Pag.  5  of 74 +FR 
Contents 
Safety Description ....................................................................................................................... 8 
1 Safety Announcements.....................................................................................................................................8
1.1 Use Announcements...........................................................................................................................8
1.2    PV String Protection.......................................................................................................................10 
1.3    ESD Protection ...............................................................................................................................10 
1.4    Grounding Requirements ..............................................................................................................10 
1.5    Moistureproof Protection ...............................................................................................................11 
1.6    Warning Mark Setting ....................................................................................................................11 
1.7    Electrical Connection ..................................................................................................................... 11 
1.8    Measurement Under Operation....................................................................................................12 
2    Operator Requirements...........................................................................................................................12 
Overview....................................................................................................................................... 13 
1 Product Intro ................................................................................................................................................13 
1.1 Features..............................................................................................................................................14 
1.2 Label scheme of interpretation ........................................................................................................14 
2 Appearance and Structure.........................................................................................................................15 
2.1 Appearance ........................................................................................................................................15 
2.2 Operation Panel.................................................................................................................................15 
2.3 Bottom Layout....................................................................................................................................16 
2.4 Size......................................................................................................................................................18 
3 Working Principle ........................................................................................................................................18 
4 Communication ...........................................................................................................................................18 
4.1 RS485 Communication.....................................................................................................................19 
4.2 WIFI/GPRS Communication (Optional) .........................................................................................19 
4.3 PID Function (Optional) ....................................................................................................................20 
4.4 PID repair function ............................................................................................................................20 
Installation ...................................................................................................................................22 
1 Installation Process ....................................................................................................................................22 
2 Installation Tools..........................................................................................................................................22 

 
IV438E REV.01 Issued: 2022/11/09                        User Manual Soleil SRT/SPX 75K-150K                          Pag.  6  of 74 +FR 
3 Selection of Installation Site ......................................................................................................................24 
3.1 Installation Environment ...................................................................................................................24 
3.2 Installation Clearance .......................................................................................................................25 
3.3 Requirements for Installation Carrier..............................................................................................27 
3.4 Installation Method ............................................................................................................................27 
4 Transporting, Unpacking and Checking...................................................................................................28 
4.1 Transporting .......................................................................................................................................28 
4.2 Unpacking and Checking .................................................................................................................30 
5 Inverter Installation .....................................................................................................................................30 
5.1 Bracket Installation............................................................................................................................30 
5.2 Wall Mounting ....................................................................................................................................33 
6 Electrical Connection..................................................................................................................................37 
6.1 Safety Announcements.....................................................................................................................37 
6.2 Requirements for Wire......................................................................................................................38 
6.3 External Grounding Connection ......................................................................................................39 
6.4 AC Output Wiring...............................................................................................................................41 
6.5 Internal Grounding Connection .......................................................................................................45 
6.6 PV String Input Wiring ......................................................................................................................46 
6.7 WIFI/GPRS Communication Connection (Optional) ....................................................................51 
6.8 RS485 port Communication Connection .......................................................................................52 
7 Check the Installation .................................................................................................................................54 
Startup and Shutdown.............................................................................................................. 55 
1 Check Before Startup .................................................................................................................................55 
2 Start Inverter ................................................................................................................................................55 
3 Shut Down Inverter .....................................................................................................................................56 
Maintenance and Troubleshooting ....................................................................................... 57 
1 Maintenance ................................................................................................................................................57 
1.1 Maintenance Details and Period .....................................................................................................57 
1.2 Maintenance Guide ...........................................................................................................................58 
2 Troubleshooting...........................................................................................................................................60 

 
IV438E REV.01 Issued: 2022/11/09                        User Manual Soleil SRT/SPX 75K-150K                       Pag.  7  of 74 +FR 
Stop Running, Dismantle, Discard Inverter ........................................................................63 
1 Stop Running...............................................................................................................................................63 
2 Dismantle the Inverter ................................................................................................................................63 
3 Discard the Inverter ....................................................................................................................................64 
Package, Transportation, Storage......................................................................................... 65 
1 Package .......................................................................................................................................................65 
2 Transportation..............................................................................................................................................65 
3 Storage .........................................................................................................................................................65 
Technical Specifications.......................................................................................................... 66 
Quality Assurance ..................................................................................................................... 71 
Reference Standards .............................................................................................................. 73 
 

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 8 of 74 +FR

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 in

operation.

Any device damage caused by violating the general safety operation requirements or safety standards

of design, production, and usage will void SIEL guarantee.

1.1.1 Use Announcements

Don't touch terminals or conductors connected with grid to avoid death risk！

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 9 of 74 +FR

There is no operational part inside the inverter. Please do not open the enclosure of the inverter by

yourself, or it may result in electric shock. The device damage caused by illegal operation voids the

guarantee.

After the input and output of the inverter have been disconnected, there may still be 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 and check that there is no voltage and current in the

inverter by the detection equipment.

Please do not put fingers or tools into the rotating fans to avoid human injury or device damage.

The surface temperature of the enclosure/cover 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.

In case of fire, please use dry power fire extinguisher. Using liquid fire extinguisher may cause

electric shock.

IV438E REV.01 Issued: 2022/11/09 User Manual Soleil SRT/SPX 75K-150K Pag. 10 of 74 +FR

1.1.2 PV String Protection

When install PV string in daytime, it necessary to cover the PV string by light-proof material, or the

PV string will generate high voltage under sunlight. If touching PV string accidently, it may cause

electric shock or human injury!

Dangerous voltage between the positive and negative of PV string is present!

When installing the device, make sure that the connection between inverter and PV string has been

disconnected completely. Set warning mark in the disconnected position to avoid reconnecting.

1.1.3 ESD Protection

To prevent damaging of sensitive components (such as circuit board) due to human electrostatic

charge, make sure that you wear anti-static wrist strap before touching sensitive components, and that

the other end is well grounded.

1.1.4 Grounding Requirements

High leakage risk! The inverter must be grounded before wiring. The grounding terminal must be

connected to ground, or there will be the risk of electric shock when touching the inverter.

When installing, the inverter must be grounded first.

When dismantling, the grounding wire must be removed at last.

Don't damage the grounding conductor.

The inverter must be connected to protection grounding permanently.

Before operation, check the electrical connection to ensure the inverter is grounded reliably.

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