1. Introduction
This manual provides essential instructions for the installation, operation, and maintenance of your Epcom EPU600LCD Uninterruptible Power Supply (UPS). The EPU600LCD is an interactive line UPS designed to protect your electronic devices from power outages, surges, and sags. It features a 600VA/360W capacity, Automatic Voltage Regulation (AVR), and an LCD display for real-time status monitoring.
2. Safety Instructions
Please read and follow all safety instructions carefully before installing or operating the UPS. Failure to do so may result in damage to the unit, connected equipment, or personal injury.
- Placement: Install the UPS in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Ensure adequate clearance around the unit for proper airflow.
- Power Source: Connect the UPS to a properly grounded AC power outlet. Do not remove the grounding prong.
- Load Capacity: Do not overload the UPS. Ensure the total power consumption of connected devices does not exceed the UPS's rated capacity (600VA/360W).
- Internal Battery: The UPS contains a sealed lead-acid battery. Do not attempt to open the UPS casing or service the battery yourself. Refer to qualified service personnel for battery replacement.
- Liquid and Moisture: Keep the UPS away from liquids. Do not operate the UPS in environments with excessive humidity.
- Emergency Shutdown: In an emergency, press the power button to turn off the UPS and disconnect the power cord from the AC outlet.
3. Package Contents
Verify that all items are present in the package:
- Epcom EPU600LCD UPS Unit
- User Manual (this document)
- Power Cord (integrated NEMA 5-15P, 1.8 meters)
4. Product Overview
4.1 Front Panel

- LCD Display: Shows real-time status information such as input/output voltage, battery level, load capacity, and operational mode.
- Power Button: Used to turn the UPS ON or OFF.
4.2 Rear Panel

- NEMA 5-15R Outlets (x4): Connect your devices here. Note that one outlet provides surge protection only, while the others offer battery backup and surge protection.
- USB Communication Port: For connecting to a computer for monitoring and controlled shutdown (software may be required, not included).
- RJ11/RJ45 Ports: Provides surge protection for telephone/network lines.
- Circuit Breaker Reset: Press to reset the circuit breaker if it trips due to an overload.
- Input Power Cord (NEMA 5-15P): Connects the UPS to the AC wall outlet.
5. Installation and Setup
Follow these steps to properly install and set up your UPS:
- Unpacking: Carefully unpack the UPS and inspect it for any shipping damage.
- Placement: Place the UPS on a flat, stable surface in a clean, dry, and well-ventilated area. Avoid placing it near windows or sources of moisture.
- Initial Charge: Connect the UPS's integrated NEMA 5-15P power cord to a grounded 120V AC wall outlet. Allow the UPS to charge for at least 8 hours before connecting any equipment to ensure optimal battery performance. The UPS will charge whether it is turned ON or OFF.
- Connecting Equipment: After the initial charge, connect your electronic devices to the NEMA 5-15R outlets on the rear panel. Prioritize critical equipment (e.g., computer, monitor) to the battery backup outlets.
- Power On: Press the power button on the front panel to turn on the UPS. The LCD display will illuminate, showing the current status.
- Communication (Optional): If desired, connect the USB cable from the UPS to your computer for monitoring.
6. Operation
6.1 Turning the UPS On/Off
- To Turn On: Press and hold the power button for approximately 2 seconds until you hear a beep and the LCD display illuminates.
- To Turn Off: Press and hold the power button for approximately 2 seconds until the LCD display turns off.
6.2 LCD Display Information
The LCD display provides various operational statuses:
- Input Voltage: Displays the incoming AC voltage from the wall outlet.
- Output Voltage: Displays the voltage supplied by the UPS to connected devices.
- Battery Level: Indicates the remaining battery charge.
- Load Capacity: Shows the percentage of the UPS's capacity currently being used by connected devices.
- Operating Mode: Indicates if the UPS is operating on AC power, battery power, or in AVR mode.
6.3 Audible Alarms
The UPS uses audible alarms to indicate specific conditions:
- Battery Mode: Beeps every 10 seconds when operating on battery power.
- Low Battery: Beeps every 1 second when the battery is critically low.
- Overload: Continuous alarm when connected load exceeds capacity. Disconnect non-essential equipment immediately.
- Fault: Continuous alarm indicating an internal fault. Turn off the UPS and contact support.
7. Maintenance
7.1 Battery Care
- To maintain optimal battery life, ensure the UPS is connected to AC power and fully charged at all times.
- If the UPS is stored for an extended period, recharge it every three months to prevent battery degradation.
- Battery replacement should only be performed by qualified service personnel. The battery is a 12V/7Ah sealed lead-acid type.
7.2 Cleaning
Use a soft, dry cloth to clean the exterior of the UPS. Do not use liquid or aerosol cleaners.
8. Troubleshooting
If you encounter issues with your UPS, refer to the following table for common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| UPS does not turn on. | No AC input power. Battery is discharged. | Ensure the power cord is securely connected to a live AC outlet. Allow the UPS to charge for several hours. |
| UPS beeps continuously (Overload). | Too many devices connected. | Disconnect non-essential equipment until the alarm stops. Ensure total load is within 600VA/360W. |
| Short backup time. | Battery not fully charged. Battery nearing end of life. Overload. | Allow UPS to charge for 8+ hours. Reduce connected load. Consider battery replacement if old. |
| UPS is in battery mode frequently. | Unstable AC input power. | This is normal operation for the AVR function. If frequent, check your building's electrical wiring. |
If the problem persists after trying these solutions, please contact Epcom technical support.
9. Specifications
| Feature | Specification |
|---|---|
| Model | EPU600LCD |
| Capacity | 600 VA / 360 W |
| Topology | Interactive Line |
| Input Voltage | 120 VAC |
| Input Voltage Range (AVR) | 80 - 150 VAC |
| Output Voltage | 120 VAC ± 5% |
| Output Waveform | Simulated Sine Wave |
| Output Outlets | 4 x NEMA 5-15R (3 with battery backup, 1 with surge protection only) |
| Input Connector | NEMA 5-15P (1.8 meter cable) |
| Battery Type | 1 x 12V/7Ah Sealed Lead-Acid |
| Recharge Time | Typically 4-6 hours to 90% capacity |
| Display | LCD |
| Dimensions (L x W x H) | 15 x 15 x 8 cm (approximate) |
| Weight | 600 g (approximate) |
10. Warranty and Support
The Epcom EPU600LCD UPS comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or service inquiries, please contact your authorized Epcom dealer or visit the official Epcom website for contact information.
Please retain your proof of purchase for warranty validation.