1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the OBO HANDS K80 Access Control Power Supply. This power supply is designed for use with door access control systems and video intercom systems, offering stable DC12V output with adjustable time delay.
Figure 1: OBO HANDS K80 Access Control Power Supply (White 3A model shown)
2. Product Features
- Available in DC12V 3A and 5A models, with white and black color options.
- Equipped with Control, Push, GND, DC12V, NC, and NO ports for compatibility with various electric locks.
- Adjustable time delay for electric locks, ranging from 0 to 15 seconds.
- Wide input voltage range: AC90V-260V, 50-60Hz.
- Constructed from durable metal for robustness and longevity.
- Features a smart circuit board for enhanced anti-interference performance.
- Utilizes a high-frequency copper transformer for efficient power delivery.
- Low power consumption with high power output.
- The 3A model can control one electric lock, while the 5A model can control up to two electric locks.
- Can be integrated with an access controller, remote control, exit button, and doorbell.
3. Specifications
| Parameter | Value |
|---|---|
| Input Voltage | AC90V-AC260V, 50-60Hz |
| Output Voltage | DC12V |
| Momentary Current | 3A / 5A (model dependent) |
| Persistent Current | 3.5A |
| Operating Temperature | -20℃ to +60℃ |
| Operating Humidity | ≦90% |
| Time Delay | 0-15 seconds (adjustable) |
| Remote Control Function | Yes |
| Dimensions (L/W/H) | 138mm x 67mm x 37mm |
Figure 2: Product Dimensions (138mm x 67mm x 37mm)
4. Product Overview and Components
The OBO HANDS K80 power supply features a robust metal casing with ventilation for heat dissipation. Key internal components include a smart circuit board, a high-frequency copper transformer, and a time delay adjustment potentiometer.
Figure 3: Internal Components and Labeled Parts
- Wiring Port: Terminal block for connecting input power and output devices.
- Time Delay: Potentiometer for adjusting the electric lock's delay time (0-15 seconds).
- Relay: Controls the switching of the electric lock.
- Transformer: High-frequency copper transformer for stable power conversion.
Figure 4: Time Delay Adjustment Potentiometer
Figure 5: High-Frequency Copper Transformer
5. Setup and Installation
Before installation, ensure all power is disconnected. This power supply is designed for professional installation. Refer to the wiring diagram below for proper connections.
Figure 6: Comprehensive Wiring Diagram
5.1 Wiring Instructions:
- Input Power (AC90V-260V): Connect your main AC power source to the red wires extending from the power supply unit.
- Access Controller Connection:
- Connect the 'CONTROL' terminals on the power supply to the corresponding control outputs of your access controller.
- Connect the 'GND' terminal on the power supply to the 'GND' terminal of the access controller.
- Electric Lock Connection:
- For Normally Open (NO) locks: Connect the lock's positive (+) terminal to 'DC12V' and its negative (-) terminal to 'NO' on the power supply.
- For Normally Closed (NC) locks: Connect the lock's positive (+) terminal to 'DC12V' and its negative (-) terminal to 'NC' on the power supply.
- Ensure the 3A model is used for a single electric lock, and the 5A model for up to two electric locks.
- Exit Button Connection:
- Connect one wire from the exit button to 'PUSH' on the power supply.
- Connect the other wire from the exit button to 'GND' on the power supply.
- Other Devices: Connect other compatible devices such as remote controls or doorbells to the appropriate terminals as per their respective manuals, ensuring they are compatible with DC12V output.
Note: Access controllers, locks, and exit buttons are not included and must be purchased separately.
6. Operation
6.1 Time Delay Adjustment:
The power supply features an adjustable time delay for electric locks. This delay determines how long the lock remains open after activation (e.g., after pressing an exit button or successful access control authentication).
- Locate the "Time" adjustment potentiometer on the circuit board (refer to Figure 3 and Figure 4).
- Using a small screwdriver, carefully turn the potentiometer to adjust the delay time. Turning it clockwise typically increases the delay, while counter-clockwise decreases it.
- The delay can be set from 0 to 15 seconds. Test the delay after adjustment to ensure it meets your requirements.
6.2 Power Supply Status:
The power supply provides a stable DC12V output. Ensure all connected devices are compatible with this voltage. The unit is designed for continuous operation within its specified temperature and humidity ranges.
Video 1: Unboxing and overview of the OBO HANDS K80 Power Supply, demonstrating the wiring port and time delay adjustment.
7. Maintenance
- Cleaning: Periodically clean the exterior of the power supply with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure the ventilation holes on the casing are not obstructed to prevent overheating.
- Connections: Regularly check all wiring connections to ensure they are secure and free from corrosion.
- Environment: Operate the device within the specified operating temperature and humidity ranges to ensure optimal performance and longevity.
- Power Surges: Consider using a surge protector to safeguard the power supply from electrical spikes.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output | No AC input power; faulty wiring; internal component failure. | Check AC power source and connections. Verify wiring according to the diagram. If problem persists, contact support. |
| Electric lock not activating | Incorrect lock wiring (NO/NC); insufficient current (3A vs 5A model); faulty lock; access controller issue. | Ensure lock type matches wiring (NO to NO, NC to NC). Confirm power supply model (3A for one lock, 5A for two). Test lock independently. Check access controller output. |
| Time delay not working or incorrect | Potentiometer not adjusted correctly; faulty potentiometer. | Adjust the time delay potentiometer (0-15 seconds). If adjustment has no effect, contact support. |
| Overheating | Poor ventilation; excessive load. | Ensure ventilation holes are clear. Reduce the number of connected devices if exceeding current limits. |
9. Warranty and Support
OBO HANDS products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please contact your retailer or the official OBO HANDS support channels. Keep your purchase receipt for warranty claims.
For further assistance, please refer to the official product page or contact customer service.