Brand: GE
Category: Other
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for LP 31 Series / 8 - 10 - 15 - 20 kVA / Series 1
Uploaded: Nov. 21, 2025, 7:11 p.m.
Manual Publish Date: 2005-10-01
Warranty Information
Warranty information is not explicitly detailed in this manual.
UPS Operation Summary
The GE LP 31 Series UPS is a compact, on-line 3-phase UPS designed to provide exceptional protection for electrical equipment. It stores energy in batteries to supply output power even during mains failure. The system uses an input converter (AC to DC) and an output converter (DC to AC) to ensure a clean sine wave output. Key features include enhanced battery life, optimal battery charging, a full-wave input converter with power factor correction, wide input voltage and frequency tolerance, and IGBT technology for the output converter.
Functional Explanation:
- Normal Conditions: Energy flows from mains through the input converter to the output converter and battery charger, keeping batteries charged. Surges are blocked, and unstable mains are supported.
- Mains Failure: The output converter uses battery energy to maintain uninterrupted output power.
- Bypass Operation: In case of overload, high temperature, or output converter failure, the static switch transfers the load to the mains line without interruption. When conditions normalize, it reverts to output converter.
Troubleshooting and error codes
| Alarm/Condition | Indication | Possible Cause | Solution |
|---|---|---|---|
| Low priority alarm | Blinking red LED (1x/sec), Buzzer (1x/8 sec) | Abnormal operating situation | Resettable; check system messages for details. |
| High priority alarm | Blinking red LED 'alarm' (1x/sec), Buzzer (1x/sec) | Load at risk, output voltage not guaranteed | Immediate action required; check system messages and ensure proper output. |
| Bypass active (alarm) | (Indicated on LCD screen and potentially via contacts) | UPS is operating in bypass mode | Check for overload, high temperature, or output converter issues. |
| Mains failure (alarm) | (Indicated on LCD screen and potentially via contacts) | Loss of input mains power | UPS will run on battery; check mains restoration. |
| Battery low (alarm) | (Indicated on LCD screen and potentially via contacts) | Battery charge is critically low | Mains should be restored soon, or battery replacement may be needed. |
| General alarm | (Indicated on LCD screen and potentially via contacts) | Other system fault | Refer to LCD screen messages for specific details. |