Aiphone RY-PA
Aiphone RY-PA Door Release Relay Instruction Manual
Model: RY-PA
1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Aiphone RY-PA Door Release Relay. Please read this manual thoroughly before attempting installation or use to ensure safe and correct functionality. The RY-PA is designed to facilitate door release activation within Aiphone LEF series intercom systems.
2. Product Overview
The Aiphone RY-PA is a compact door release relay unit. Its primary function is to provide a Normally Open (N/O) contact output for activating an electric door strike or other access control devices when a door release command is issued from a compatible Aiphone LEF series intercom station. The unit features a clear wiring diagram on its casing for straightforward connection.

Image 1: Aiphone RY-PA Door Release Relay. This image displays the compact beige relay unit with its integrated wiring diagram and attached yellow and black wires for connection.
3. Safety Information
- Always disconnect power to the system before performing any installation or maintenance.
- Installation should be performed by qualified personnel familiar with electrical wiring and safety standards.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- Do not exceed the specified voltage and current ratings for the relay contacts or coil.
- Keep the unit dry and away from moisture.
4. Installation and Setup
The Aiphone RY-PA relay is designed for surface mount installation. Refer to the wiring diagram printed on the unit for specific connection details. The relay coil requires a DC 12V power source, typically supplied by the Aiphone LEF series master station or an auxiliary power supply. The contact output provides a Normally Open (N/O) connection for controlling a door strike or other device.
4.1 Wiring Connections
- Coil Connection (DC 12V): Connect the appropriate wires from your power source (e.g., Aiphone LEF series master station) to the relay coil terminals. Ensure correct polarity if specified by the power source.
- Contact Output (N/O): Connect the door strike or other controlled device to the Normally Open (N/O) contact terminals. When the relay is activated, these contacts will close, completing the circuit to release the door.
- Power Source: Verify that the power source for the door strike or controlled device is within the relay's contact ratings (AC 10V/1A or DC 24V/1A).
Always consult the specific wiring diagrams for your Aiphone LEF series system and the door strike/access control device for detailed connection instructions.
5. Operation
Once properly installed and wired, the Aiphone RY-PA relay operates in conjunction with your Aiphone LEF series intercom system. When a user at an LEF series master station presses the door release button, a signal is sent to the RY-PA relay. This signal energizes the relay coil, causing the Normally Open (N/O) contacts to close. The closing of these contacts completes the circuit to the connected door strike or access control device, initiating the door release mechanism.
6. Maintenance
The Aiphone RY-PA Door Release Relay is designed for reliable, long-term operation with minimal maintenance. Regular inspection is recommended:
- Periodically check all wiring connections to ensure they remain secure.
- Inspect the unit for any signs of physical damage or corrosion.
- Keep the unit clean and free from dust and debris.
No user-serviceable parts are inside the relay unit. Do not attempt to open or repair the device.
7. Troubleshooting
If the door release function is not working correctly, consider the following troubleshooting steps:
- No Door Release:
- Verify that the Aiphone LEF series master station is functioning correctly and sending a door release signal.
- Check the DC 12V power supply to the RY-PA relay coil. Ensure it is present and correctly wired.
- Inspect the wiring between the RY-PA contacts and the door strike/access control device. Ensure connections are secure and there are no breaks in the wiring.
- Confirm the door strike or access control device is receiving power and is operational independently.
- Intermittent Operation:
- Check for loose wiring connections at the relay, power supply, and door strike.
- Ensure the power supply to the relay coil is stable and not fluctuating.
If issues persist after troubleshooting, contact Aiphone technical support or a qualified technician.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | RY-PA |
| Brand | Aiphone |
| Coil Voltage | DC 12V |
| Contact Type | Normally Open (N/O) |
| Contact Rating (AC) | AC 10V / 1A |
| Contact Rating (DC) | DC 24V / 1A |
| Mounting Type | Surface Mount |
| Product Dimensions | 2.4 x 1.9 x 0.4 inches |
| Weight | 1.6 ounces |
| Material (Contact) | Silver or Gold |
9. Warranty and Support
The Aiphone RY-PA Door Release Relay is covered by Aiphone's standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Aiphone website. For technical support, service, or replacement parts, please contact Aiphone customer service directly.
Aiphone Corporation
Website: www.aiphone.com
Contact information available on the website.
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