Riello UPS sentryum S3U

Questions and Answers

O
oesparzaSep 9, 2025
What does it mean when my Riello UPS alarm list shows L01, L02, L03, L04, L06, L07, L08 codes?
- A
  Amy FosterSep 9, 2025
  If the alarm list of your Riello UPS shows one or more of the following codes: L01, L02, L03, L04, L06, L07, L08, it could be due to: * Faulty loads applied: Remove the load. Insert the maintenance bypass SWMB (if present), and turn the UPS off and then on again. * Fault in the input or output stage of the UPS: Activate the maintenance bypass SWMB (if present) and turn the UPS off and then on again.
V
vblackAug 23, 2025
What to do if my Riello UPS is completely off?
- H
  hbeckerAug 23, 2025
  If your Riello UPS is completely off (display not turned on), consider the following: * **Mains Voltage:** Check that the mains voltage is present. If needed, power on the UPS from the battery to power the load. * **Input Terminals:** Ensure the mains are correctly connected to the terminals. * **Input Breaker:** Verify the input breaker (SWIN) is closed. * **Neutral Connection:** The UPS requires a neutral connection to function. Connect the mains to the terminals as indicated in the Installation manual. * **Upstream Protective Device:** Reset the protective device, but first, check for any overload or short-circuit at the output of the UPS.
M
Mr. Clayton HaynesAug 25, 2025
What to do if my Riello UPS load is not powered?
- C
  cynthiawashingtonAug 25, 2025
  If the load connected to your Riello UPS is not powered, check the following: * **Output Terminals:** Ensure the load is correctly connected to the output terminals. * **Output Isolator:** Verify that the output isolator (SWOUT) is closed. * **Stand-By Mode:** Make sure the UPS is not in stand-by. Execute the power-on sequence. * **Stand-By Off Mode:** Check if STAND-BY OFF mode is selected, this mode only powers the loads when a black out occurs. Change the operating mode if needed. * **UPS Failure:** If there is a UPS failure and automatic bypass is out of order, insert the maintenance bypass SWMB (if present) and call your local service center.
M
Marvin GuerraAug 26, 2025
What does it mean when my Riello UPS alarm list shows A09 code?
- M
  Megan BennettAug 27, 2025
  If your Riello UPS alarm list shows one or more of the A09 code, it indicates that the batteries have failed the periodic efficiency test. You should replace the UPS batteries, as they can no longer maintain the charge for a sufficient time to ensure the required autonomy.
F
fergusonjuanAug 27, 2025
What does it mean when my Riello UPS alarm list shows A01?
- Y
  yorkruthAug 27, 2025
  If the alarm list of your Riello UPS shows A01, this indicates an incorrect data configuration. You should check the settings.
J
James RomeroAug 29, 2025
What does it mean when my Riello UPS alarm list shows C05?
- N
  Nicole CampbellAug 29, 2025
  If the alarm list of your Riello UPS shows C05, verify if manual bypass switch (SWMB) is actually closed and why or the interlock paddle was removed or misplaced.
G
Grace KnightSep 22, 2025
What does it mean when my Riello UPS alarm list shows A18 codes?
- M
  Monica SteeleSep 22, 2025
  If the alarm list of your Riello UPS shows one or more of the following codes: A18, it could be due to: * Protective device upstream from the bypass line open (only if bypass is separate): Reset the upstream protective device. Check that there is no overload or short circuit at the output of the UPS. * Bypass switch open (SWBYP only if bypass is separate from mains): Close the bypass switch (SWBYP) if present.
S
Stacey GravesSep 12, 2025
What does it mean when my Riello UPS alarm list shows L08, L09, L10, L11, L12, L13 codes?
- C
  Carolyn GrahamSep 12, 2025
  If the alarm list of your Riello UPS shows one or more of the following codes: L08, L09, L10, L11, L12, L13, it indicates an output short circuit. Power off the UPS, disconnect all the devices connected to the phase concerned by the short circuit, turn the UPS on again, reconnect the devices one by one until the faulty one is identified.
M
Michael HornSep 8, 2025
What does it mean when my Riello UPS alarm list shows L01 code?
- T
  Tyler LunaSep 8, 2025
  If the alarm list of your Riello UPS shows one or more of the following codes: L01, it indicates a fault at the UPS input stage. Activate the maintenance bypass SWMB (if present), turn the UPS off and on again.
M
Mitchell ClaySep 4, 2025
What does it mean when my Riello UPS alarm list shows F05, F06, F09, F10 codes?
- B
  Benjamin YoungSep 4, 2025
  If the alarm list of your Riello UPS shows one or more of the following codes: F05, F06, F09, F10, it indicates a battery charger fault. Open the battery cabinet switch, insert the maintenance bypass SWMB (if present), shut down the UPS completely and contact the nearest technical support center.

Summary

Introduction

Safety Precautions

Environmental Protection

Disposal of the Product

Glossary of Acronyms

Presentation

Description

General Views

Communication

Communication Ports

Details the various ports on the UPS for connectivity and monitoring.

UPS Operation

Operating Modes

Explains the different modes the UPS can operate in.

Operating States

Details the various operational statuses the UPS can be in.

Manual Bypass

Other Features

Back-Feed Protection

Describes the UPS's protection against power flowing back into the supply.

Display

Overview

Introduces the touch screen display and its capabilities.

Status Bar

Explains the top status bar showing UPS model, time, and alarms.

Icons and Symbols

Active Text Areas

Navigation

System Home Page

System Measurements

System Status

Menu Entries

Command Panel

Accesses commands for system and battery operations.

Bypass Command

Battery Test Command

Global System Information

General Configuration

Main Setup Page

Language Setting

Display Setting

System Clock

Screen Saver and Buzzer

Change Password

System Log Page

Expert Level

General System Settings

General Configuration

Allows configuration of operating modes, auto-restart, and battery settings.

Inverter Output Settings

Voltage Setting

Allows adjustment of the UPS output voltage.

Frequency Setting

Allows adjustment of the UPS output frequency.

Battery Configuration

Battery Test Scheduling

Enables scheduling of automatic battery health tests.

Battery Low Time

Sets the time for battery low alarm and buzzer notification.

Access Users Level

PowerUser Level

Grants access to default commands and settings for authorized users.

User Level

Provides basic display actions with limited menu access.

Access Level Selection

Password Change

Status LED

Buzzer

Configuring the UPS from Display

Default Configuration of the Input;Output Signals

Output Signals Configuration (Factory Default)

Lists factory default configurations for output signals.

Input Signals Configuration (Factory Default)

Lists factory default configurations for input signals.

Operative Procedures

Preliminary Operations

Essential checks before powering on and operating the UPS.

System On Direct Command

Step-by-step guide to power on the UPS directly.

System On Command Via Battery (Cold Start)

Operations Checks

Battery Test

Verifies the UPS functionality during battery operation.

Battery Working

Checks the UPS status when running on battery power.

Load Forced on Bypass

Verifies switching the system to static bypass.

Switching the System from On-Line to Manual Bypass

Restore the On Line Mode After Manual Bypass

Load on Static Bypass After Manual Bypass

System Off Command

Options

External Battery Cabinet

Information on connecting and using external battery cabinets.

Parallel

Optional Slot Boards

External Battery Cabinet Breaker Remote Trip

Remote Maintenance Bypass

Setting the Rated Battery Capacity - Software Configuration

External Battery Temperature Probe

Four Switch Version

Status; Alarm Codes

Statuses

Codes indicating the current UPS operational status.

Commands

Codes indicating activated commands.

Warning

Codes referring to specific UPS configurations or operations.

Anomalies

Faults

Locks

Troubleshooting Guide

Preventive Maintenance

Introduction

Overview of UPS maintenance requirements and benefits.

Batteries

Maintenance recommendations for UPS batteries.

Fans

Maintenance advice for the UPS cooling fans.

Air Filter

Instructions for cleaning and maintaining the UPS air filter.

Technical Data Table

Summary

Introduction

Safety Precautions

Environmental Protection

Disposal of the Product

Glossary of Acronyms

Presentation

Description

General Views

Communication

Communication Ports

Details the various ports on the UPS for connectivity and monitoring.

UPS Operation

Operating Modes

Explains the different modes the UPS can operate in.

Operating States

Details the various operational statuses the UPS can be in.

Manual Bypass

Other Features

Back-Feed Protection

Describes the UPS's protection against power flowing back into the supply.

Display

Overview

Introduces the touch screen display and its capabilities.

Status Bar

Explains the top status bar showing UPS model, time, and alarms.

Icons and Symbols

Active Text Areas

Navigation

System Home Page

System Measurements

System Status

Menu Entries

Command Panel

Accesses commands for system and battery operations.

Bypass Command

Battery Test Command

Global System Information

General Configuration

Main Setup Page

Language Setting

Display Setting

System Clock

Screen Saver and Buzzer

Change Password

System Log Page

Expert Level

General System Settings

General Configuration

Allows configuration of operating modes, auto-restart, and battery settings.

Inverter Output Settings

Voltage Setting

Allows adjustment of the UPS output voltage.

Frequency Setting

Allows adjustment of the UPS output frequency.

Battery Configuration

Battery Test Scheduling

Enables scheduling of automatic battery health tests.

Battery Low Time

Sets the time for battery low alarm and buzzer notification.

Access Users Level

PowerUser Level

Grants access to default commands and settings for authorized users.

User Level

Provides basic display actions with limited menu access.

Access Level Selection

Password Change

Status LED

Buzzer

Configuring the UPS from Display

Default Configuration of the Input;Output Signals

Output Signals Configuration (Factory Default)

Lists factory default configurations for output signals.

Input Signals Configuration (Factory Default)

Lists factory default configurations for input signals.

Operative Procedures

Preliminary Operations

Essential checks before powering on and operating the UPS.

System On Direct Command

Step-by-step guide to power on the UPS directly.

System On Command Via Battery (Cold Start)

Operations Checks

Battery Test

Verifies the UPS functionality during battery operation.

Battery Working

Checks the UPS status when running on battery power.

Load Forced on Bypass

Verifies switching the system to static bypass.

Switching the System from On-Line to Manual Bypass

Restore the On Line Mode After Manual Bypass

Load on Static Bypass After Manual Bypass

System Off Command

Options

External Battery Cabinet

Information on connecting and using external battery cabinets.

Parallel

Optional Slot Boards

External Battery Cabinet Breaker Remote Trip

Remote Maintenance Bypass

Setting the Rated Battery Capacity - Software Configuration

External Battery Temperature Probe

Four Switch Version

Status; Alarm Codes

Statuses

Codes indicating the current UPS operational status.

Commands

Codes indicating activated commands.

Warning

Codes referring to specific UPS configurations or operations.

Anomalies

Faults

Locks

Troubleshooting Guide

Preventive Maintenance

Introduction

Overview of UPS maintenance requirements and benefits.

Batteries

Maintenance recommendations for UPS batteries.

Fans

Maintenance advice for the UPS cooling fans.

Air Filter

Instructions for cleaning and maintaining the UPS air filter.

Technical Data Table

Riello UPS sentryum S3U Specifications

General

Power factor	0.9
Output Power Capacity	2700 W
Input Voltage	230 V
Output Voltage	230 V
Frequency	50/60 Hz
Battery Type	Sealed lead-acid, maintenance free
Communication Ports	USB, RS232
Weight	18 kg
Operating Temperature	0 ÷ +40 °C
Storage Temperature	-15 ÷ +50 °C
Humidity	0 ÷ 95% non-condensing
Protection	Overload, short circuit