What to do if my ONEAC SE041XAT displays an OVERLOAD message?
- MmatthewrussellJul 31, 2025
If your ONEAC UPS displays an OVERLOAD message, it means there's an overload at the UPS output. To resolve this, reduce the load to the permissible value.
What to do if my ONEAC SE041XAT displays an OVERLOAD message?
If your ONEAC UPS displays an OVERLOAD message, it means there's an overload at the UPS output. To resolve this, reduce the load to the permissible value.
Why is the battery run time less than specified on my ONEAC UPS?
There are several reasons why your ONEAC UPS battery run time might be less than specified: * The fuse switch of the battery extension(s) may be blown; check for open fuses. * Batteries might not be fully charged.
How to fix no communication between ONEAC SE041XAT and PC?
If there's no communication between your ONEAC UPS and PC, here are a few things to check: * Ensure you're using the correct serial connection cable. Standard modem/null modem cables are not suitable. * Verify that the interface on the PC isn't being used by another process or is defective. Try selecting a different serial interface. * Check for interference on the data cable. Try laying the cable differently or reinstalling the cabling.
What to do if the FAULT indicator is illuminated and the acoustic alarm is active continuously on my ONEAC UPS?
If the FAULT indicator is illuminated and the acoustic alarm is continuously active on your ONEAC UPS, it may indicate overheating. Try to decrease the ambient temperature.
What to do if the “ON” LED does not illuminate when mains voltage is present and the acoustic alarm is active at intervals on my ONEAC UPS?
If the “ON” LED doesn't illuminate when mains voltage is present, and the acoustic alarm is active at intervals, the input fuse may be defective, or the input circuit breaker may have tripped. Replace the fuse with one of the same type or switch on the circuit breaker.
How to troubleshoot a ONEAC SE041XAT UPS with no indication and no alarm when switched off?
If your ONEAC UPS shows no indication and no alarm when switched off, here are a few things to check: * Ensure the mains are switched on; switch on the main switch. * Verify that mains voltage is present. Have the mains inspected by a qualified electrician. * Check if the input fuse is blown or the input circuit breaker is tripped. Replace the fuse with the same type or switch on the circuit breaker. If the problem persists, contact technical support.
Contact information and procedure for technical assistance.
Provides critical warnings about electrical hazards and operational risks.
Lists important safety precautions and guidelines for safe operation.
Details external protection and isolation device requirements.
Explains the function and connection of the RPO/ESD safety feature.
Detailed steps for connecting input and output power cables.
Specifies recommended cable sizes and torque values for connections.
Instructions for connecting external battery cabinets to the UPS.
Describes the normal online operation of the UPS.
Details the UPS bypass operating mode.
Explains operation when the UPS is running on battery power.
Information on displayed messages and audible alarms.
Explanation of the meaning of different LED indicator states.
Visual representation of the UPS control panel menu structure.
Detailed description of control panel menu options and display text.
Lists warning indicators, their causes, and corrective actions.
Describes fault indicators, causes, and detailed fault codes.
Step-by-step guide to starting the UPS unit.
| Type | Line Interactive |
|---|---|
| Category | UPS |
| VA Rating | 400 VA |
| Watts | 240 W |
| Input Voltage | 120 V |
| Output Voltage | 120 V |
| Outlets | 4 |
| Battery Type | Sealed Lead Acid |
| Form Factor | Tower |
| Frequency | 50/60 Hz |
| Battery Recharge Time | 8 hours |
| Transfer Time | 4 ms |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -15 to 45 °C |
| Humidity | 0 to 95% non-condensing |
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