1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the EVERSECU CP12-5A-EG UPS Power Supply. This unit is designed to provide stable and uninterrupted power for door access entry systems and related security peripherals.
The EVERSECU UPS Power Supply converts AC 110-240V input to a stable DC 12V, 5A output. It includes a battery link feature to ensure continuous operation during power outages. Please note that the backup battery is not included and must be purchased separately.
This power supply is compatible with various access control components, including electric/magnetic locks, access controllers, exit push buttons, and RFID readers, ensuring seamless integration into diverse security setups.
Figure 1: EVERSECU CP12-5A-EG UPS Power Supply Unit
2. Key Features
- 60W High Power Output: Provides 12VDC nominal (adjustable 12-15VDC) with 5A rated current (max 7.5A) to support various access control devices.
- Intelligent Battery Charging: Features 0.15A constant current (CC) and 13.8V constant voltage (CV) floating charge, with anti-reverse connection and short circuit protection for battery safety.
- Comprehensive Protection: Includes overvoltage (18V), short circuit, overcurrent (7.7A), and overtemperature (120-150℃) protection with auto-recovery.
- Energy-Efficient: Achieves 89.0% average efficiency and ≤0.5W standby power, meeting RoHS and IEC/EN/UL62368/GB4943 safety certifications.
- Global Voltage Compatibility: Supports 90-264VAC input (47-63Hz) for worldwide use.
- Flexible Output Configuration: Capable of configuring both Normally Closed (NC) and Normally Open (NO) outputs for compatibility with a wide range of electric lock systems.
- External Battery Support: Designed to support an external 12V, 7AH backup battery (not included) for extended power continuity.
3. Installation and Setup
Follow these guidelines for proper installation and initial setup of your EVERSECU UPS Power Supply.
3.1 Environmental Considerations
- Install the unit indoors in a dry, well-ventilated area.
- Avoid direct sunlight and high moisture environments.
- Ensure operating temperature is between -20℃ and 50℃ (4°F to 122°F).
3.2 Wiring Precautions
- Always connect all wires, especially the battery positive (+) and negative (-) terminals, correctly before connecting the AC input.
- Never operate the unit with wet hands.
- For electronic locks, set the time delay button to 0 seconds before connecting to prevent coil burnout.
3.3 Component Overview and Connections
Figure 2: Internal Components and Connection Points
Refer to Figure 2 for an overview of the internal components and connection terminals. Ensure all connections are secure and correctly polarized.
- Metal Housing: Provides protection for internal components. Features fire retardant paint and knockouts for wiring.
- LED Indicator Plate: Displays operational status.
- Safety Protections: Integrated circuits for overvoltage, short circuit, overcurrent, and overtemperature protection.
- Smart Circuit: High efficiency power conversion with adjustable output voltage (12-15VDC).
- Battery Protection: Independent DC13.8V charging circuit with reverse polarity and overcharge/discharge protection.
- Time Delay Adjustment: Allows adjustment of lock delay from 0 to 45 seconds.
4. Operation
4.1 LED Status Indicators
The LED indicator plate provides visual feedback on the power supply's status:
- RED + GREEN LEDs ON: Indicates AC power is connected and the unit is operating normally.
- YELLOW + GREEN LEDs ON: Indicates the unit is in battery backup mode (AC power is off).
- If LEDs fail to light, check all connections and the internal fuse.
4.2 Battery Charging and Backup
The power supply features a smart charging mode for the connected backup battery:
- Automatically switches from constant current (0.15A, ≤13.8V) to constant voltage floating charge (13.8V) to prevent overcharging.
- Includes anti-reverse connection and short circuit protection for battery safety.
- Seamlessly switches to battery power when AC input is lost, ensuring continuous operation of connected access control systems.
5. Maintenance and Care
To ensure the longevity and optimal performance of your EVERSECU UPS Power Supply, observe the following maintenance guidelines:
- Regularly inspect the unit for any signs of physical damage or loose connections.
- Keep the unit clean and free from dust. Use a dry, soft cloth for cleaning.
- Ensure adequate ventilation around the unit to prevent overheating.
- If a backup battery is installed, periodically check its condition and replace it according to the battery manufacturer's recommendations.
- Do not attempt to open the unit or perform repairs yourself. Refer to qualified service personnel.
6. Troubleshooting
This section addresses common issues you might encounter with the EVERSECU UPS Power Supply.
6.1 No Power / LEDs Not Lighting Up
- Check AC Input: Ensure the power cord is securely plugged into a functional AC outlet and the power supply unit.
- Check Internal Fuse: If accessible, inspect the internal fuse for continuity. Replace if blown (use only a fuse of the same rating).
- Verify Connections: Ensure all internal wiring connections are secure, especially the main power input.
6.2 System Not Switching to Battery Backup
- Check Battery Connection: Ensure the backup battery is correctly connected to the power supply unit with correct polarity.
- Check Battery Charge: Verify the backup battery is charged. A completely discharged battery may not engage immediately.
- Battery Health: If the battery is old, it may no longer hold a charge. Consider replacing the battery.
6.3 Output Voltage Issues
- Overload: Ensure the total current draw of connected devices does not exceed the 5A nominal (7.5A max) output capacity. Disconnect some devices to test.
- Voltage Adjustment: The output voltage is adjustable between 12-15VDC. Use a multimeter to check the output and adjust if necessary using the internal potentiometer (VR1).
7. Technical Specifications
| Category | Specification |
|---|---|
| Brand | EVERSECU |
| Model Number | CP12-5A-EG |
| Input Voltage | 90-264VAC (Nominal: 115VAC/230VAC) |
| Input Frequency | 47-63Hz (Nominal: 50/60Hz) |
| Max Input Current | 1.5A (minimum input voltage, full load) |
| Standby Power | ≤0.5W |
| Output Voltage | 12-15VDC (adjustable) |
| Output Current | 5A nominal, 7.5A maximum |
| Ripple & Noise | ≤2% of output voltage (mVp-p @25℃) |
| Efficiency | ≥89.0% (rated input, full/max load) |
| Overcurrent Protection (OCP) | 7.7A |
| Overvoltage Protection (OVP) | 18V (hiccup mode, auto-recovery) |
| Short Circuit Protection | Triggers at output impedance <0.1Ω |
| Overtemperature Protection | 120-150℃ (auto-recovery) |
| Operating Temperature | -20℃ ~ 50℃ (4°F ~ 122°F) |
| Storage Temperature | -20℃ ~ 85℃ (4°F ~ 185°F) |
| Humidity | 25%-90% RH (Operating, non-condensing) / 0%-95% RH (Storage, non-condensing) |
| Altitude | 2000 meters (Operating & Storage) |
| Product Dimensions | 2.76"D x 6.54"W x 2.76"H |
| Material | Metal |
| Safety Certifications | RoHS, IEC/EN/UL62368/GB4943 |
8. Warranty Information
The EVERSECU CP12-5A-EG UPS Power Supply comes with a 1-Year Limited Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover damage caused by misuse, accident, unauthorized modification, or improper installation. Please retain your proof of purchase for warranty claims.
9. Customer Support
If you encounter any issues or have questions regarding the EVERSECU CP12-5A-EG UPS Power Supply that are not covered in this manual, please contact EVERSECU customer support for assistance.
For the most up-to-date support information, please visit the official EVERSECU website or refer to your purchase documentation.
