Brand: ABB
Category: Power Supplies
Document Type: Manual
Language: EN
Brand: ABB
Category: Power Supplies
Document Type: Manual
Language: EN
Uploaded: April 20, 2026, 8:02 p.m.
Manual Publish Date: 2016-01-01
The supplier's responsibility is excluded in the event of any modification or intervention in the product by the customer's side.
This manual outlines the operation of the PowerValue 11 T UPS. Key operations include:
Safety Note: Only trained personnel should perform internal operations. Ensure proper grounding and avoid contact with hazardous voltages.
| Problem | Possible cause | Suggested solution |
|---|---|---|
| No indication, no warning tone even though system is connected to mains power supply | No input voltage | Check building wiring socket outlet and input cable. |
| Display Mode code "1" in LCD, even though the power supply is available | Inverter not switched on | Press On-Switch "I". |
| Display Mode code "3" in LCD, and audible alarm sounding every 1 beep in every 4 seconds | Mains power supply has failed, or Input power and/or frequency are out of tolerance | Switching to battery mode automatically. Check input power source and inform dealer if necessary. |
| Emergency supply period shorter than nominal value | Batteries not fully charged / batteries defect | Charge the batteries for at least 5- 8 hours and then check capacity. If the problem still persists, consult your dealer. |
| Fan fail | Fan abnormal | Check if the fan is running |
| Battery over voltage | Battery is over charged | Switching to battery mode automatically, and after the battery voltage is normal and the mains is normal, the UPS would Switching to online mode automatically again. |
| Battery low | Battery voltage is low | When audible alarm sounding every second, battery is almost empty. |
| Charge fail | The charge is broken | Notify dealer. |
| DC-DC temperature high | Inside temperature of the UPS is too high | Check the ventilation of the UPS, check the ambient temperature. |
| Inverter temperature high | Inside temperature of the UPS is too high | Check the ventilation of the UPS, check the ambient temperature. |
| Ambient temperature high | The ambient temperature is too high | Check the environment ventilation. |
| Line voltage high (OVCD action) | Input power voltage is too high | Switching to battery mode automatically, and after the mains is normal, the UPS would Switching to online mode automatically again. |
| Battery open | Battery pack is not connected correctly | Do the battery test to confirm. Check the battery bank is connected to the UPS. Check the battery breaker is turn on. |
| Overload | Overload | Check the loads and remove some non-critical loads. Check whether some loads are failed. |
| Site fail | Phase and neutral conductor at input of UPS system are reversed | Rotate mains power socket by 180° or connect UPS system. |
| EPO active | EPO function is enabled | Plug into the EPO switch. |
| Bus fault | UPS internal fault | Notify dealer |
| Inverter fault | UPS internal fault | Notify dealer |
| Over temperature fault | Over temperature | Check the ventilation of the UPS, check the ambient temperature and ventilation. |
| Inverter short | Output short circuit | Remove all the loads. Turn off the UPS. Check whether the output of UPS and loads is short circuit. Make sure the short circuit is removed, and the UPS has no internal faults before turning on again. |
| Bus short | UPS internal fault | Notify dealer |