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Riello MULTI SENTRY MST 125 - User Manual

Riello MULTI SENTRY MST 125
56 pages
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Table of Contents

Questions and Answers

  • T
    Tracy CookeSep 10, 2025
    What does it mean if my Riello MULTI SENTRY MST 125 display shows error codes F09, F10?
    • M
      morrismichaelSep 10, 2025
      If your Riello UPS displays codes F09 or F10, it could indicate a UPS input stage malfunction. To resolve this, activate manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Contact the nearest service centre if this problem persists. Alternatively, phase 1 may have a voltage much lower than the other two phases. In this case, open the SWIN, switch on batteries, wait for sequence completion and close the SWIN.
  • Y
    Yvette RobertsonSep 9, 2025
    What do the error codes F37, L37 mean on my Riello MULTI SENTRY MST 125?
    • T
      Tammy AndersonSep 9, 2025
      If your Riello UPS displays codes F37, L37, it could be due to several reasons: * Ambient temperature exceeding 40°C. * Sources of heat near the UPS. * Ventilation slits obstructed or too close to walls. * Temperature sensor or battery charger cooling system malfunction. Remove the cause of over-temperature. Insert manual bypass (SWMB) without switching off the UPS and wait for battery charger temperature to lower. Exclude manual bypass. Contact the nearest service centre if this problem persists.
  • D
    Denise HollowayAug 22, 2025
    Why is my Riello MULTI SENTRY MST 125 operating on battery even with mains power?
    • J
      Jesus MartinezAug 22, 2025
      If your Riello UPS is running on battery even when mains power is available, it could be due to upstream protection intervention. In this case, reset the protection, checking for any output overload or short circuit in the UPS. Alternatively, the input voltage may be outside the acceptable range. If so, wait for the mains voltage to return within the tolerance range, and the UPS will automatically switch back to mains operation.
  • D
    Dean JohnsonSep 6, 2025
    Why won't my Riello MULTI SENTRY MST 125 UPS start up and shows codes A30, A32, A33, A34?
    • M
      Mitchell BridgesSep 6, 2025
      If your Riello UPS displays codes A30, A32, A33, A34 and won't start, it could be due to the ambient temperature being below 0°C. Heat up the room, wait for the dissipater temperature to exceed 0°C, and then start up the UPS. Alternatively, there may be a temperature sensor malfunction on the dissipator. In this case, activate manual bypass (SWMB), switch off the UPS, re-start the UPS and exclude manual bypass. Call the nearest service centre if this problem persists.
  • A
    amandahernandezSep 5, 2025
    What does it mean when my Riello UPS displays error codes L26, L27, L28?
    • J
      jessicalawrenceSep 5, 2025
      If your Riello UPS displays one or more of the following codes: L26, L27, L28, it indicates a short-circuit in the output. To resolve this, switch off the UPS, disconnect all utilities related to the short-circuited phase, switch the UPS back on, and then reconnect utilities once the fault has been identified.
  • T
    Thomas BlankenshipSep 4, 2025
    What do error codes F11, F14, F15, F16, F17, L06, L07, L08, L09, L14, L15, L16, L17, L18, L19, L20, L21, L22 mean on my Riello MULTI SENTRY MST 125 UPS?
    • Q
      qclarkSep 4, 2025
      If your Riello UPS shows one or more of the following codes: F11, F14, F15, F16, F17, L06, L07, L08, L09, L14, L15, L16, L17, L18, L19, L20, L21, L22, it may be due to the insertion of abnormal loads. Remove the load. Insert manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Call the nearest service centre if this problem persists. Another possibility is a UPS input or output stage malfunction. Activate manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Contact the nearest service centre if this problem persists.
  • R
    Rose CaseySep 2, 2025
    What do error codes F03, F04, F05, A08, A09, A10 mean on my Riello MULTI SENTRY MST 125 UPS?
    • T
      Tyler WilsonSep 2, 2025
      If your Riello UPS displays one or more of the following codes: F03, F04, F05, A08, A09, A10, the cause may be a missing connection on one or more phases. In this case, verify the terminal connections. Another possible cause is broken fuses inside protections on phases or input contactor. In this case, call the nearest service centre.
  • S
    sweeneynoahSep 1, 2025
    What does it mean when my Riello MULTI SENTRY MST 125 shows codes A13, A14, or A15?
    • J
      Joseph TerrySep 1, 2025
      If your Riello UPS displays codes A13, A14, or A15, it indicates a problem with the bypass line. This could be due to the bypass line upstream protection being open (with separate bypass only). Reset the upstream protection, checking for any output overload or short circuit to the UPS. Alternatively, the bypass switch (SWBYP with separate bypass only) may be open. In this case, close the switch located behind the door.
  • S
    staceymillsAug 30, 2025
    What does it mean if my Riello MULTI SENTRY MST 125 UPS display shows C05?
    • K
      Kathy CainAug 30, 2025
      If your Riello UPS display shows C05, it could be due to the manual bypass switch (SWMB) being closed. If the switch (SWMB) located behind the door was not closed intentionally, open it. Alternatively, there may be no jumper on terminals for remote maintenance bypass (A3-A4, "UPS CONNECTIONS VIEW"). In this case, insert the jumper or, if an additional auxiliary contact is present, follow directions described in paragraph "Remote Maintenance Bypass".
  • J
    John DodsonAug 29, 2025
    What does it mean when my Riello UPS shows error codes A22, A23, A24, F23, L23, L24, or L25?
    • V
      Vanessa WadeAug 29, 2025
      If your Riello UPS displays codes A22, A23, A24, F23, L23, L24, or L25, it means the load applied to the UPS is too high. Reduce the load to within the threshold of 100% (or the user threshold for codes A22, A23, and A24).

Summary

PRESENTATION

COMMUNICATIONS AREA VIEW

SWITCHES VIEW

CONTROL PANEL VIEW

Control Panel Layout and Indicators

Explains the display, LEDs, and function keys of the control panel.

UPS CONNECTIONS VIEW

SEPARATE BYPASS INPUT (OPTIONAL FOR MST 60-80-100)

INSTALLATION

INSTALLATION SET-UP

Provides initial setup instructions and warnings for qualified personnel.

REMOVING THE UPS FROM THE PALLET

Unpacking and Removal Instructions

Step-by-step instructions for safely removing the UPS from its packaging.

ELECTRICAL CONNECTIONS

CONNECTION CABLES SECTION

Table detailing required cable cross-sections for power connections.

PRELIMINARY OPERATIONS FOR CONNECTION

Pre-Connection Safety Checks

Essential checks and safety precautions before making electrical connections.

HOOKUP INSTRUCTIONS

Electrical Connection Steps

Step-by-step guide for connecting power cables to the UPS.

ELECTRICAL SYSTEM CONNECTION DIAGRAMS

UPS with Separate Bypass Input

Separate Bypass on Separate Lines

PROTECTION DEVICES

INPUT LINE THERMAL MAGNETIC SWITCHES

Recommendations for external AC input protection devices.

BATTERY LINE PROTECTION

Guidance on surge protectors and fuses for the battery line.

DIFFERENTIAL

OUTPUT LINE FUSES;THERMAL MAGNETIC SWITCHES

REMOTE MAINTENANCE BYPASS

Maintenance Bypass Installation Diagram

Diagram illustrating the installation of a maintenance bypass.

USE

FIRST START-UP AND ADDITIONAL SETTINGS

Initial Setup and Configuration Steps

Step-by-step guide for the initial power-on and configuration.

SWITCHING ON FROM THE MAINS

SWITCHING ON FROM THE BATTERY

Procedure for starting the UPS using battery power.

SHUTDOWN PROCEDURE

Instructions for safely shutting down the UPS.

GRAPHIC DISPLAY

DISPLAY MENU

OPERATING MODE

MANUAL BYPASS (SWMB)

Instructions for operating the manual bypass switch.

UPS CONFIGURATION

Configurable Parameters

Lists configurable parameters via control panel and software.

COMMUNICATION PORTS

ACOUSTIC SIGNAL (BUZZER)

SOFTWARE

MONITORING AND CONTROL SOFTWARE

Details the PowerShield³ software for UPS management.

CONFIGURATION SOFTWARE

Mentions software for advanced UPS parameter configuration.

TROUBLESHOOTING

Common Problem Solutions

Provides solutions for common UPS operational problems.

STATUS; ALARM CODES

UPS Status Codes

Lists codes for different UPS operating statuses.

ANOMALY CODES

Minor Problem Codes

FAULT CODES

Critical Problem Codes

Lists codes for critical problems that can cause UPS malfunction.

LOCK CODES

UPS Inhibition Codes

Lists codes indicating UPS inhibition due to failure or alarm.

TECHNICAL DATA

Input Stage Specifications

Output Stage Specifications

MODE AND EFFICIENCY

Riello MULTI SENTRY MST 125 Specifications

General IconGeneral
BrandRiello
ModelMULTI SENTRY MST 125
CategoryUPS
LanguageEnglish

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