Riello RS Series - User Manual

Other manuals for Riello RS Series

Installation, Use And Maintenance Instructions72 pages

Questions and Answers

T
Tim HarrisAug 18, 2025
What to do if Riello Inverter shows Grid AC over-voltage?
- K
  Karen HubbardAug 19, 2025
  If the Riello Inverter alarm for Grid AC over-voltage occurs occasionally, it indicates abnormal grid operation. The inverter should automatically return to normal operation once the grid stabilizes. If the alarm happens repeatedly but recovers automatically, you may need to contact your local power company for permission to adjust the inverter's grid protection parameters using the app. If the alarm persists, verify that the output breaker is closed, the output terminal is properly connected, and the output cable meets the user manual specifications.
K
Krista McmillanAug 21, 2025
What to do if my Riello RS Inverter shows PV insulation abnormal?
- J
  Jennifer HillAug 21, 2025
  If your Riello Inverter displays a PV insulation abnormal alarm occasionally, it might be due to an external circuit issue; the inverter should automatically resume normal operation once the fault is resolved. However, if the alarm occurs repeatedly or persists for a long time, take these steps: 1. Check the stability of the output cable. 2. Connect the PV strings one by one to identify any abnormal PV string. Check for low insulation resistance against the ground or any cable breaks or incorrect connections in the PV strings.
E
Edward LawsonAug 23, 2025
How to fix PV DC over-voltage on Riello RS Inverter?
- A
  anne16Aug 23, 2025
  To address a PV DC over-voltage issue on your Riello Inverter, measure the PV input voltage using a multimeter and compare it to the “Max input voltage” specified on the inverter label. If the measured PV input voltage exceeds the maximum rated voltage, you will need to reduce the number of PV modules connected to the inverter.
N
Nicholas HunterAug 26, 2025
Why is my Riello Inverter over-temperature?
- C
  Christina MontesAug 26, 2025
  If your Riello Inverter is showing an over-temperature alarm, it means the internal temperature is too high. If this happens occasionally, the inverter should automatically return to normal operation. However, if it occurs repeatedly or for a long time, check if the installation site is exposed to direct sunlight, ensure proper ventilation, and verify that the ambient temperature is not too high. If these are not the cause, contact customer service.
J
johnmedinaAug 28, 2025
What to do if Riello Inverter shows PV DC over-voltage?
- S
  samanthagravesAug 28, 2025
  If the Riello Inverter displays a PV DC over-voltage error, it signifies that the PV module input voltage exceeds the permitted range. Use a multimeter to measure the PV input voltage and compare it to the “Max input voltage” indicated on the inverter label. If the PV input voltage is greater than the maximum specified, you should reduce the number of PV modules.
J
John SinghAug 30, 2025
What to do if Riello RS Inverter displays abnormal leakage current?
- W
  William WoodsAug 30, 2025
  If your Riello Inverter shows an abnormal leakage current, it indicates that the insulation resistance against the ground at the input side is decreasing during operation. If the alarm occurs occasionally, it may be due to an external circuit issue, and the inverter should automatically recover once the problem is resolved. If it happens repeatedly or persists, check the stability of the output cable, then plug the PV strings in one by one to identify any abnormal PV string. Also, check the insulation resistance against the ground of the PV strings, and inspect the cables for breaks or incorrect connections.
M
melissa63Sep 1, 2025
What to do if Riello RS Inverter shows PV insulation abnormal?
- B
  Bailey WeaverSep 1, 2025
  If the Riello Inverter displays a PV insulation abnormal message, it means that the insulation resistance against the ground is low before the inverter starts. If the alarm occurs occasionally, it may be caused by an external circuit. The inverter should automatically recover its normal operating status once the fault is solved. If the alarm occurs repeatedly or lasts a long time, check if the output cable is stable. Then plug the PV strings one by one to find the abnormal PV string. Check if the insulation resistance against the ground of the PV strings is too low, or if the cable is broken or connected incorrectly.
M
Meredith ChandlerSep 4, 2025
What to do if Riello Inverter displays fan lock?
- T
  Timothy WalkerSep 4, 2025
  If the Riello Inverter displays a fan lock alarm, it indicates a fan abnormality. If this happens occasionally, try restarting the inverter. If the alarm persists, check if the fan is clogged. If it is not, contact customer service.
M
monica07Sep 6, 2025
What does it mean if Riello Inverter relay is abnormal?
- S
  Steven RodriguezSep 6, 2025
  If the Riello Inverter shows an abnormal relay error, it means the output relay cannot be closed. If the alarm occurs occasionally, it may be due to a temporary abnormal grid voltage, and the inverter should automatically return to normal operation. If the alarm occurs repeatedly or lasts a long time, check if the output neutral and live lines are inversely connected. If they are not, contact customer service.
K
Kimberly ColemanSep 8, 2025
Why does my Riello RS say PV strings abnormal?
- T
  Terry Cruz DDSSep 8, 2025
  If the Riello Inverter indicates abnormal PV strings, it means the PV strings have been shielded for a long time or are deteriorating. Start by checking whether the PV string is shielded. If the PV string is clean and not shielded, check if the PV modules are ageing or deteriorated, or if the cable/terminal is abnormal.

Summary

INTRODUCTION

Application Model

Details the available inverter models and their MPPT input configurations.

Intended Recipients

Specifies the target audience for this user manual.

Symbol Conventions

Explains the meaning of safety symbols used throughout the manual.

SAFETY PRECAUTIONS

Personnel Safety

Outlines safety requirements for technicians handling the inverter.

PV Inverter Protection

Instructions for checking the inverter's enclosure and warning signs.

Installation Safety

Safety measures and prerequisites for installing the inverter.

Electrical Connections

Safety guidelines for making electrical connections to the inverter.

Operation and Commissioning

Safety precautions during the operation and commissioning phases.

Maintenance

Safety procedures to follow before and during inverter maintenance.

Additional Information

Instructions for reporting safety issues.

PROTECTING THE ENVIRONMENT

LIMITED GUARANTEE

Details the terms and conditions of the product guarantee.

PRESENTATION

Product Presentation

Introduces the inverter, its function, and network application.

Functional Model

Describes the inverter's core function and technology.

Model Description

Explains how the inverter model name indicates its power class.

Network Application

Illustrates a typical grid-tied PV power system configuration.

Outline and Dimensions

Inverter Dimensions

Provides dimensional drawings for different inverter models.

Connections and Indicators

Connections Area

Identifies the various connection ports on the inverter.

Indicator Panel

Explains the LEDs and LCD on the inverter's front panel.

Working Process

Principle and Diagrams

Explains the core working principle and shows circuit diagrams.

Operating Modes

Describes the different operating modes of the inverter.

INSTALLATION

Preliminary Checks

Details checks for packaging and contents before installation.

Handling and Safety

Moving and Identification

Covers moving the inverter, identification, and nameplate information.

Safety Warnings

Highlights critical safety risks like electric shock and hot surfaces.

Intended Use and Disposal

Specifies grid-tied use and provides disposal guidelines.

Installation Site Requirements

Position and Environment

Requirements for installation position and operating environment.

Carrier Requirements

Specifications for the mounting surface and structure.

Installation Space Requirements

Specifies clearance needed around the inverter for installation and cooling.

Installation Mode Requirements

Details correct and incorrect installation orientations for the inverter.

Mounting Procedures

Installing the Rear Panel

Step-by-step instructions for mounting the rear panel to the wall.

Mounting the Inverter

Procedures for mounting the inverter onto the installed rear panel.

ELECTRICAL INSTALLATION

Preliminary Operations

Initial steps before performing electrical connections.

Connecting Protection Ground (PGND) Cables

Detailed procedure for connecting the protection ground cable.

Connecting the AC Output Cables

Preparation and specifications for connecting AC output cables.

AC Cable Connection Procedure

Step-by-step guide for connecting the AC output cables.

Connecting the PV Strings

Prerequisites and procedures for connecting PV strings.

Preparation

Cable specifications and connector details for PV string connections.

PV String Connection Procedure

Detailed steps for crimping and connecting PV string cables.

Wi-Fi Antenna and Modules

Connecting the Wi-Fi Antenna

Instructions for attaching the Wi-Fi antenna.

Contacts and RS485 Module

Information on optional communication modules.

Installation Verification

Checklist for verifying correct inverter installation.

USE

System Operation

Procedures for powering the inverter on and off.

User Interface

Explains the inverter's indicator panel with LEDs and LCD.

LED;LCD Status and Warning Codes

Table detailing LED/LCD indicators and error codes.

MAINTENANCE

Routine Maintenance

Schedule and tasks for routine maintenance of the inverter.

TROUBLESHOOTING

Table of common alarms, explanations, and handling methods.

Removing the Inverter

Step-by-step instructions for safely removing the inverter.

STORAGE

Guidelines for storing the inverter when not in use.

DISPOSAL OF THE INVERTER

Instructions for environmentally sound disposal of the inverter.

CONFIGURATION & MONITORING

INTRODUCTION

Overview of Wi-Fi connectivity and monitoring capabilities.

RS CONNECT APP

Details on the RS Connect mobile application for configuration and monitoring.

RS Connect App Configuration

Steps for initial setup and connection using the RS Connect app.

RS Connect App Main Screen

Describes the main interface of the RS Connect app and its displayed data.

RS Connect App Menus

App Menus Overview

Overview of accessible menus within the RS Connect app.

History Log

Explanation of the history log for events and alarms.

Production Data

Details on viewing daily, monthly, and yearly energy production graphs.

App Settings and Autotest

Maintenance Functions

Information regarding maintenance features in the app.

Settings

Configuration options available within the app.

Autotest

How to initiate and manage the autotest process via the app.

Power Limiter and Cloud Connection

Power Limiter Function

Functionality for enabling the power limiter feature.

Cloud Connection via App

Steps for connecting the inverter to the cloud via the app.

RS MONITORING CLOUD PORTAL

RS Monitoring Portal Overview

Introduction to the cloud monitoring system for inverters.

Accessing the RS Monitoring Portal

Instructions on how to access and log into the RS Monitoring portal.

User Registration

Process for registering a new user account on the portal.

Portal Configuration and Settings

Configuration Panel Settings

How to access and use the portal's configuration settings.

Account Settings

Options for managing user account information and password.

User Information

Fields for updating personal and contact details.

Change Logo

Feature to upload a custom logo for the user profile.

Change Password

Procedure to change the portal login password.

Plant Management

Add Plant

Instructions for creating or acquiring a new plant on the portal.

Create Plant

Steps to initialize and set up a new plant.

Acquire Plant

How to add an existing plant created by another user.

Modify Plant

Options for editing existing plant information and inverters.

Mail Activation

Setting up email notifications for alarms.

Plant Image

Ability to upload an image for a plant.

Inverter List

Managing the list of inverters associated with a plant.

Dashboard Overview

Overview of the Smart Dashboard interface and its displayed information.

Data and Comparisons

Data Section

Section for displaying plant and individual inverter data.

Plant Data

Viewing real-time and historical power/energy data for the plant.

Single Inverter Data

Accessing detailed AC, DC, MPPT, and periodic data for a single inverter.

Inverter Comparison

Functionality to compare performance data between inverters.

History and Reports

History Log

Accessing logs of alarms and events with time details.

Reports

Generating and viewing reports on inverter measurements.

Alarm Management

Alarm Management Overview

Overview of the ALERT Service and alarm management system.

Group 1: Communication Alarms

Details on alarms related to communication failures.

Group 2: Zero Production Alarms

Details on alarms for zero energy production over a period.

Group 3: Inverter Alarms

Management of alarms directly generated by the inverters.

TECHNICAL SPECIFICATIONS

Model Specifications

Technical specifications by inverter model.

Efficiency Ratings

Data on maximum and European efficiency ratings.

PV Input Specifications

Electrical input parameters for the PV side.

Grid Output Specifications

Electrical output parameters for the grid connection.

Protection Features

List of protection features integrated into the inverter.

General Specifications

General technical characteristics like topology and IP rating.

Dimensions

Physical dimensions of the inverter.

Weight

Weight of the inverter.

HMI & COM

Display and Communication

Details on the inverter's display and communication interfaces.

Certification and Standards

Safety and EMC certifications for the inverter.

Safety Standards

Safety standards the inverter complies with.

EMC Standards

Electromagnetic compatibility standards met.

Grid Code Compliance

Grid connection codes applicable to the inverter.

Warranty Information

Information on the warranty period offered.

Important Notes

Important notes regarding voltage and frequency settings.

Summary

INTRODUCTION

Application Model

Details the available inverter models and their MPPT input configurations.

Intended Recipients

Specifies the target audience for this user manual.

Symbol Conventions

Explains the meaning of safety symbols used throughout the manual.

SAFETY PRECAUTIONS

Personnel Safety

Outlines safety requirements for technicians handling the inverter.

PV Inverter Protection

Instructions for checking the inverter's enclosure and warning signs.

Installation Safety

Safety measures and prerequisites for installing the inverter.

Electrical Connections

Safety guidelines for making electrical connections to the inverter.

Operation and Commissioning

Safety precautions during the operation and commissioning phases.

Maintenance

Safety procedures to follow before and during inverter maintenance.

Additional Information

Instructions for reporting safety issues.

PROTECTING THE ENVIRONMENT

LIMITED GUARANTEE

Details the terms and conditions of the product guarantee.

PRESENTATION

Product Presentation

Introduces the inverter, its function, and network application.

Functional Model

Describes the inverter's core function and technology.

Model Description

Explains how the inverter model name indicates its power class.

Network Application

Illustrates a typical grid-tied PV power system configuration.

Outline and Dimensions

Inverter Dimensions

Provides dimensional drawings for different inverter models.

Connections and Indicators

Connections Area

Identifies the various connection ports on the inverter.

Indicator Panel

Explains the LEDs and LCD on the inverter's front panel.

Working Process

Principle and Diagrams

Explains the core working principle and shows circuit diagrams.

Operating Modes

Describes the different operating modes of the inverter.

INSTALLATION

Preliminary Checks

Details checks for packaging and contents before installation.

Handling and Safety

Moving and Identification

Covers moving the inverter, identification, and nameplate information.

Safety Warnings

Highlights critical safety risks like electric shock and hot surfaces.

Intended Use and Disposal

Specifies grid-tied use and provides disposal guidelines.

Installation Site Requirements

Position and Environment

Requirements for installation position and operating environment.

Carrier Requirements

Specifications for the mounting surface and structure.

Installation Space Requirements

Specifies clearance needed around the inverter for installation and cooling.

Installation Mode Requirements

Details correct and incorrect installation orientations for the inverter.

Mounting Procedures

Installing the Rear Panel

Step-by-step instructions for mounting the rear panel to the wall.

Mounting the Inverter

Procedures for mounting the inverter onto the installed rear panel.

ELECTRICAL INSTALLATION

Preliminary Operations

Initial steps before performing electrical connections.

Connecting Protection Ground (PGND) Cables

Detailed procedure for connecting the protection ground cable.

Connecting the AC Output Cables

Preparation and specifications for connecting AC output cables.

AC Cable Connection Procedure

Step-by-step guide for connecting the AC output cables.

Connecting the PV Strings

Prerequisites and procedures for connecting PV strings.

Preparation

Cable specifications and connector details for PV string connections.

PV String Connection Procedure

Detailed steps for crimping and connecting PV string cables.

Wi-Fi Antenna and Modules

Connecting the Wi-Fi Antenna

Instructions for attaching the Wi-Fi antenna.

Contacts and RS485 Module

Information on optional communication modules.

Installation Verification

Checklist for verifying correct inverter installation.

USE

System Operation

Procedures for powering the inverter on and off.

User Interface

Explains the inverter's indicator panel with LEDs and LCD.

LED;LCD Status and Warning Codes

Table detailing LED/LCD indicators and error codes.

MAINTENANCE

Routine Maintenance

Schedule and tasks for routine maintenance of the inverter.

TROUBLESHOOTING

Table of common alarms, explanations, and handling methods.

Removing the Inverter

Step-by-step instructions for safely removing the inverter.

STORAGE

Guidelines for storing the inverter when not in use.

DISPOSAL OF THE INVERTER

Instructions for environmentally sound disposal of the inverter.

CONFIGURATION & MONITORING

INTRODUCTION

Overview of Wi-Fi connectivity and monitoring capabilities.

RS CONNECT APP

Details on the RS Connect mobile application for configuration and monitoring.

RS Connect App Configuration

Steps for initial setup and connection using the RS Connect app.

RS Connect App Main Screen

Describes the main interface of the RS Connect app and its displayed data.

RS Connect App Menus

App Menus Overview

Overview of accessible menus within the RS Connect app.

History Log

Explanation of the history log for events and alarms.

Production Data

Details on viewing daily, monthly, and yearly energy production graphs.

App Settings and Autotest

Maintenance Functions

Information regarding maintenance features in the app.

Settings

Configuration options available within the app.

Autotest

How to initiate and manage the autotest process via the app.

Power Limiter and Cloud Connection

Power Limiter Function

Functionality for enabling the power limiter feature.

Cloud Connection via App

Steps for connecting the inverter to the cloud via the app.

RS MONITORING CLOUD PORTAL

RS Monitoring Portal Overview

Introduction to the cloud monitoring system for inverters.

Accessing the RS Monitoring Portal

Instructions on how to access and log into the RS Monitoring portal.

User Registration

Process for registering a new user account on the portal.

Portal Configuration and Settings

Configuration Panel Settings

How to access and use the portal's configuration settings.

Account Settings

Options for managing user account information and password.

User Information

Fields for updating personal and contact details.

Change Logo

Feature to upload a custom logo for the user profile.

Change Password

Procedure to change the portal login password.

Plant Management

Add Plant

Instructions for creating or acquiring a new plant on the portal.

Create Plant

Steps to initialize and set up a new plant.

Acquire Plant

How to add an existing plant created by another user.

Modify Plant

Options for editing existing plant information and inverters.

Mail Activation

Setting up email notifications for alarms.

Plant Image

Ability to upload an image for a plant.

Inverter List

Managing the list of inverters associated with a plant.

Dashboard Overview

Overview of the Smart Dashboard interface and its displayed information.

Data and Comparisons

Data Section

Section for displaying plant and individual inverter data.

Plant Data

Viewing real-time and historical power/energy data for the plant.

Single Inverter Data

Accessing detailed AC, DC, MPPT, and periodic data for a single inverter.

Inverter Comparison

Functionality to compare performance data between inverters.

History and Reports

History Log

Accessing logs of alarms and events with time details.

Reports

Generating and viewing reports on inverter measurements.

Alarm Management

Alarm Management Overview

Overview of the ALERT Service and alarm management system.

Group 1: Communication Alarms

Details on alarms related to communication failures.

Group 2: Zero Production Alarms

Details on alarms for zero energy production over a period.

Group 3: Inverter Alarms

Management of alarms directly generated by the inverters.

TECHNICAL SPECIFICATIONS

Model Specifications

Technical specifications by inverter model.

Efficiency Ratings

Data on maximum and European efficiency ratings.

PV Input Specifications

Electrical input parameters for the PV side.

Grid Output Specifications

Electrical output parameters for the grid connection.

Protection Features

List of protection features integrated into the inverter.

General Specifications

General technical characteristics like topology and IP rating.

Dimensions

Physical dimensions of the inverter.

Weight

Weight of the inverter.

HMI & COM

Display and Communication

Details on the inverter's display and communication interfaces.

Certification and Standards

Safety and EMC certifications for the inverter.

Safety Standards

Safety standards the inverter complies with.

EMC Standards

Electromagnetic compatibility standards met.

Grid Code Compliance

Grid connection codes applicable to the inverter.

Warranty Information

Information on the warranty period offered.

Important Notes

Important notes regarding voltage and frequency settings.

Riello RS Series Specifications

General

Cooling Method	Forced air cooling
Frequency	50/60 Hz
Operating Temperature	0°C to 40°C
Humidity	5% to 95% (non-condensing)
Dimensions	Varies by model
Weight	Varies by model
Input Voltage	230V AC ±15%