MiOYOOW YF-65 AC Current Detection Sensor Module User Manual

1. Introduction

The MiOYOOW YF-65 is an AC current detection sensor module designed for monitoring AC current and providing electrical overload or overcurrent protection. It controls a relay's on/off state by detecting the input voltage and current value via an AC transformer. This allows for intelligent start-stop control of equipment when the current reaches a preset value.

This module is suitable for various applications, including motor current monitoring, power distribution cabinet use, and general equipment current monitoring. It features an automatic memory function that retains settings after a power failure.

2. Safety Information

WARNING: This device operates with AC 220V and DC 10V-14V. Improper installation or handling can result in electric shock, injury, or damage to equipment. Always follow safety guidelines and consult a qualified electrician if unsure.

• Ensure all power sources are disconnected before installation or maintenance.
• Do not exceed the specified voltage and current ratings.
• Install the module in a dry, well-ventilated area, away from flammable materials.
• Verify all connections are secure and correct before applying power.
• This product is intended for industrial and scientific applications.

3. Package Contents

• 1x AC Current Detection Sensor Module
• 1x 10A AC Transformer (Current Transformer)

4. Specifications

Figure 1: MiOYOOW YF-65 module with indicated dimensions (80mm length, 50mm width, 18mm height).

5. Setup and Installation

Proper wiring is crucial for the safe and correct operation of the YF-65 module. The module requires a DC 10V-14V power supply for its operation, while it detects AC 220V current and controls an AC 220V or DC 30V load.

5.1 Wiring with Separate Power Supplies

This configuration uses separate power sources for the module and the load being controlled.

Figure 2: Wiring diagram showing the module powered by DC 12V, and the AC 220V load connected to the relay output, with the AC transformer sensing the load current.

• Connect a DC 10V-14V power supply to the Input DC 12V terminals (DC+ and DC-) on the module.
• Connect the AC transformer to the module's dedicated input terminals.
• Route the AC 220V load wire through the aperture of the AC transformer.
• Connect the AC 220V load to the relay output terminals (L and N) as shown. The relay will switch the AC 220V line to the load.

5.2 Wiring with Shared DC Power Supply

This configuration uses a single DC power supply for both the module and the load, assuming the load is also DC and within the relay's capacity.

Figure 3: Wiring diagram showing the module and a DC load sharing a DC 12V power supply, with the AC transformer sensing the load current.

• Connect a DC 10V-14V power supply to the Input DC 12V terminals (DC+ and DC-) on the module.
• Connect the AC transformer to the module's dedicated input terminals.
• Route the load wire (e.g., DC load) through the aperture of the AC transformer.
• Connect the DC load to the relay output terminals, sharing the DC power supply as illustrated.

5.3 Relay Output and Controls Overview

The module features a digital display and three control buttons (S1, S2, S3) for configuration. The relay output provides Normally Open (NO) and Normally Closed (NC) contacts, along with a common terminal, allowing flexible control of the connected load.

Figure 4: Module layout indicating control buttons (S1, S2, S3), digital display, and relay output connections. The relay's on/off state is controlled by the detected AC current.

• S1, S2, S3: Control buttons for settings and calibration.
• Digital Display: Shows current values and setting parameters.
• Relay Output: Provides NC (Normally Closed) and NO (Normally Open) contacts. The "Load Voltage" terminal is the common contact. Connect your load between the common and either NC or NO depending on desired behavior.

6. Operating Instructions

6.1 Threshold Adjustment

This function allows you to set the current threshold at which the relay will activate or deactivate.

1. Enter Setting Mode: Long press button S1. The display will show "P -XX" (where XX is a mode number).
2. Adjust Mode: Use buttons S2 and S3 to navigate through different modes (if applicable).
3. View Current Threshold: Short press S1 to display the current threshold for the selected mode.
4. Adjust Threshold: Use buttons S2 and S3 to modify the threshold value.
5. Save and Exit: After setting, short press S1 to move to the next threshold setting or to return to the standby interface.

6.2 Current Calibration

If the displayed current value deviates from the actual measured current, you can calibrate the module.

1. Enter Calibration Mode: Long press button S3.
2. Adjust Value: Use buttons S1 and S2 to adjust the displayed value to match the actual current measured by an external multimeter. For example, if the multimeter reads 1.00A, adjust the module's display to 1.00A.
3. Calibrate and Save: Short press S3 to calibrate and save the new setting.

6.3 System Reset

To restore all settings to their factory default state:

• Perform Reset: Long press button S2 for five seconds. All data will be initialized to the factory state.

7. Maintenance

The MiOYOOW YF-65 module is designed for reliable operation with minimal maintenance. To ensure longevity and proper function:

• Keep the module clean and free from dust and debris.
• Ensure proper ventilation to prevent overheating.
• Regularly inspect wiring for any signs of damage or loose connections.
• Avoid exposing the module to excessive moisture or extreme temperatures outside its specified operating range.

8. Troubleshooting

If you encounter issues with your YF-65 module, consider the following common troubleshooting steps:

• No Power/Display Off:
  • Check the DC 10V-14V input power supply connection and voltage.
  • Ensure the power supply is functional.
• Incorrect Current Reading:
  • Verify the AC transformer is correctly installed around the load wire.
  • Perform a Current Calibration as described in Section 6.2.
  • Ensure the load current is within the 0-10A detection range.
• Relay Not Activating/Deactivating:
  • Check the Threshold Adjustment settings (Section 6.1) to ensure the threshold is set correctly for your application.
  • Verify the load wiring to the relay output terminals (NC, NO, Common).
  • Ensure the load voltage and current are within the relay's capacity (DC 30V or AC 220V, 10A).
• Module Unresponsive:
  • Try performing a System Reset (Section 6.3) to revert to factory settings.
  • Disconnect and reconnect the power supply.

If problems persist, contact customer support for further assistance.

9. Support

For any questions, concerns, or technical assistance regarding your MiOYOOW YF-65 AC Current Detection Sensor Module, please feel free to contact MiOYOOW customer support. We are committed to providing high-quality service and support.

Please refer to your purchase documentation or the MiOYOOW brand store on Amazon for contact details.

Visit the MiOYOOW Store on Amazon