What does C01 mean on the display of my Riello UPS?
If the Riello UPS display shows the code C01, it means that the jumper is missing from the R.E.P.O. connector (J13) or is not inserted correctly. Mount the jumper or check that it is inserted correctly.
What does C05 mean on my Riello UPS display?
If the Riello UPS display shows the code C05, it may be due to the SWMB maintenance bypass switch being closed. Open the SWMB switch located behind the door. Another cause could be the jumper missing from the terminals for the remote maintenance bypass (J10). In this case, insert the jumper.
What to do if my Riello UPS display shows A22, F23, or L23 indicating a high load?
To resolve this, reduce the load connected to the Riello UPS until it is within the 100% threshold, or the specified load threshold if code A22 is displayed.
What should I do if my Riello MCM 20 UPS displays F09 or F10?
If the Riello UPS display shows one or more of the following codes: F09, F10, it may indicate a malfunction at the UPS input stage. Activate the maintenance bypass (SWMB), switch the UPS off and then on again, and exclude the maintenance bypass. If the problem persists, contact the nearest service centre. It is also possible that phase 1 has a much lower voltage than the other two phases. Open the SWIN, start up the UPS using the batteries, wait until the sequence ends, and then close SWIN.
Why won't my Riello MCM 20 start up and shows A30, A32, A33, or A34?
If the Riello UPS display shows one or more of the following codes: A30, A32, A33, A34 and the UPS does not start up, the environmental temperature may be below 0°C. Heat the environment and wait until the temperature of the heat sink rises above 0°C before switching on the UPS. Alternatively, there could be a malfunction of the temperature sensor on the heat sink. In that case, activate the maintenance bypass (SWMB), switch the UPS off and then on again, and exclude the maintenance bypass. If the problem persists, call the nearest service centre.
What to do if my Riello UPS displays F37 or L37?
If the Riello UPS display shows one or more of the following codes: F37, L37, it could be due to ambient temperature exceeding 40°C, heat sources near the UPS, obstructed ventilation slits, or a fault in the temperature probe or battery charger cooling system. Eliminate the cause of the overtemperature. Open the battery fuse holder isolators (SWBATT) and wait for the battery charger heat sink to cool down. Close the battery fuse holders. If the problem recurs, contact your local service centre. Never open the SWBATT fuse holders during battery operation.
What does it mean when my Riello MCM 20 UPS displays F11, F14, F17, L06, L07, L08, L09, L14, L17, or L20?
If the Riello UPS display shows one or more of the following codes: F11, F14, F17, L06, L07, L08, L09, L14, L17, L20, this could be due to faulty loads. Disconnect the load. Insert the maintenance bypass (SWMB), switch the UPS off and then on again. Exclude the maintenance bypass. If the problem still persists, call the nearest service centre. Another cause may be a malfunction at the UPS input or output stage. Activate the maintenance bypass (SWMB), switch the UPS off and then on again and exclude the maintenance bypass. If the problem persists, call the nearest service centre.
Why is my Riello MCM 20 UPS displaying F34, F35, F36, L34, L35, or L36?
If the Riello UPS display shows one or more of the following codes: F34, F35, F36, L34, L35, L36, it may be due to ambient temperature exceeding 40°C, heat sources near the UPS, or obstructed ventilation slits. Activate the maintenance bypass (SWMB) without powering off the UPS to cool the heat sink more quickly. Eliminate the cause of the overtemperature and wait for the heat sink to cool down. Then, exclude the maintenance bypass. The issue may also be due to a fault in the temperature probe or UPS cooling system. Insert the maintenance bypass (SWMB) without turning off the UPS to allow the fans to cool the heat sink, then turn the UPS off and on again. Exclude the maintenance bypass. If the problem persists, contact your local service centre.
What should I do if my Riello MCM 20 displays F03, F04, F05, A08, A09, or A10?
If the Riello UPS display shows one or more of the following codes: F03, F04, F05, A08, A09, A10, check the connections to the terminals. Also, verify that the short circuit bar is present for input single-phase connection, following the instructions in the paragraph on single-phase connections. If the internal protection fuses on the phases or the input relay have blown, contact the nearest service centre.
What to do if my Riello UPS has no power to the load?
If no power reaches the load connected to the Riello UPS, verify the connection to the output terminals. Also, check if the SWOUT switch located behind the door is open and close it. Ensure that the UPS is not in standby mode by running the start-up sequence. Check if 'Stand-by OFF' mode has been selected. This mode is used to power the loads only during blackouts. If none of these solutions work and there is a malfunction of the UPS and automatic bypass out of use, insert the maintenance bypass (SWMB) and contact the nearest service centre.
Information required before proceeding with installation, such as preliminary checks and environmental factors.
Illustrates electrical connection diagrams for various UPS configurations and input types.
Explains the UPS's protection mechanisms against short circuits during normal and battery operation.
Describes the UPS's internal protection against backfeed and the optional relay board output.
Details the initial connection steps, emphasizing earthing and neutral connections.
General| Rated Power | 20 kVA |
|---|---|
| Frequency | 50/60 Hz |
| Technology | Online Double Conversion |
| Battery Type | Valve Regulated Lead Acid (VRLA) |
| Communication | RS232, USB |
| Operating Temperature | 0 - 40 °C |
| Input Voltage | 400 V (3Ph+N) |
| Output Voltage | 400 V (3Ph+N) |
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