Vikye YYLOCK-2 High-Power Self-Locking Power-Off Delay Relay Module (12V) User Manual

1. Product Overview

The Vikye YYLOCK-2 is a versatile high-power relay module designed for various control applications. It features self-locking and power-off delay functions, operating on a 12V DC supply. This module is equipped with a high-quality optocoupler for stable performance and strong anti-interference capabilities. It can handle AC loads up to 250V/30A and DC loads up to 30V/30A.

Key features include:

• Output Capacity: AC 250V / 30A, DC 30V / 30A or less.
• Optocoupler Isolation: Utilizes an ultra-compact optocoupler for enhanced anti-interference and stable operation.
• Robust Terminals: Features 9.5mm black fence-type connection terminals, standard 30A, ensuring stable and reliable connections.
• Adjustable Delay: Delay time range from 0 seconds to approximately 100 minutes, adjustable with a minimum of 1 second.
• Memory Function: Equipped with a permanent memory mode function, retaining the selected program even after power failure.

Figure 1: Top-down view of the Vikye YYLOCK-2 relay module, showing the blue relay, capacitors, and terminal blocks. This image provides a general perspective of the module's layout.

2. Component Identification

Familiarize yourself with the main components of the relay module:

Figure 2: Labeled diagram of the relay module, indicating key connection points and controls. This includes DC+ and DC- for power input, IN for trigger signal, COM, NO (Normally Open), and NC (Normally Closed) for load connections, a mode selection button, and an adjustable time knob with a minutes/second shift switch.

• DC+ / DC-: Power input terminals (12V DC).
• IN: Trigger signal input.
• COM: Common terminal for the relay output.
• NO: Normally Open terminal. Connects to COM when the relay is active.
• NC: Normally Closed terminal. Connects to COM when the relay is inactive.
• SET Button: Used for mode selection (P1, P2, P3, P4).
• Adjust Time Knob: Potentiometer for fine-tuning the delay time. Turning clockwise decreases the time.
• Minutes/Second Shift Switch: Toggles the time unit for the delay (minutes or seconds).

3. Setup and Wiring

Proper wiring is essential for the safe and correct operation of the relay module. Ensure all power is disconnected before making any connections.

Figure 3: Basic wiring diagram illustrating connections for power input, trigger switch, and load. The power input connects to DC+ and DC-. A switch connects to the IN terminal for triggering. The load is connected to the COM and either NO or NC terminals depending on the desired operation. Common loads include electronic valves, pumps, and motors.

1. Power Input: Connect your 12V DC power supply to the DC+ and DC- terminals. Ensure correct polarity.
2. Trigger Input: Connect a switch or control signal to the IN terminal. The trigger signal is typically a +12V pulse.
3. Load Connection: Connect your device (load) to the relay output terminals.
   • For a load that should be OFF by default and turn ON when triggered, connect one side of the load to COM and the other side to NO (Normally Open).
   • For a load that should be ON by default and turn OFF when triggered, connect one side of the load to COM and the other side to NC (Normally Closed).

Warning: Ensure the load's voltage and current ratings do not exceed the module's maximum capacity (AC 250V/30A, DC 30V/30A).

4. Operating Modes and Settings

The YYLOCK-2 module offers four distinct operating modes (P1, P2, P3, P4) which can be selected using the SET button. The selected program is retained even after power loss. The delay time can be adjusted using the potentiometer and the minutes/second switch.

4.1. Time Adjustment

• Time Unit Selection: Use the small switch (labeled '分秒' which means minutes/seconds) to select the desired time unit. Position the switch to the right for seconds, and to the left for minutes.
• Delay Adjustment: Rotate the potentiometer (adjust time knob) to set the delay duration. Turning the knob clockwise will decrease the set time.

4.2. Mode Selection (P1-P4)

Press the SET button to cycle through the operating modes. The current mode is indicated by LEDs (P1, P2, P3, P4).

• P1 - Bistable Relay Mode:
  A single pulse (rising edge of +12V on IN) switches the relay to the ON position. A subsequent pulse switches the relay to the OFF position. There is no built-in delay in this mode.
• P2 - Monostable Relay Mode (Falling Edge Trigger with Delay):
  The relay switches ON immediately upon receiving a pulse (rising edge of +12V on IN). It remains ON for a defined delay period, which starts from the falling edge of the trigger pulse. After the delay, the relay switches OFF.
• P3 - Monostable Relay Mode (Rising Edge Trigger with Fixed Delay):
  The relay switches ON immediately upon receiving a pulse (rising edge of +12V on IN). It remains ON for a defined delay period, which starts from the moment of the pulse. The duration of this delay is independent of the trigger signal's level (i.e., whether the trigger remains at 0V or +12V after the initial rising edge).
• P4 - Relay ON with Engagement Delay:
  The relay switches ON after a defined delay period, which starts from the rising edge of the trigger pulse (+12V on IN). The relay remains ON as long as the trigger signal is maintained at +12V. If the trigger signal falls to 0V (falling edge), the relay switches OFF.

5. Specifications

6. Maintenance

The Vikye YYLOCK-2 relay module is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure longevity:

• Keep Clean: Ensure the module is free from dust, dirt, and moisture. Use a soft, dry cloth for cleaning.
• Environmental Conditions: Operate the module within its specified temperature and humidity ranges. Avoid extreme conditions.
• Connection Integrity: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can lead to intermittent operation or damage.
• Avoid Overload: Do not exceed the maximum current and voltage ratings for the relay contacts. Overloading can cause premature failure.

7. Troubleshooting

If you encounter issues with your Vikye YYLOCK-2 relay module, refer to the following troubleshooting steps:

• Module Not Powering On:
  Check the 12V DC power supply connection to the DC+ and DC- terminals. Ensure correct polarity and that the power supply is active.
• Relay Not Activating/Deactivating:
  
  • Verify the trigger signal on the IN terminal. Ensure it is providing the correct +12V pulse as required by the selected mode.
  • Check the selected operating mode (P1-P4) using the SET button. Ensure it matches your intended operation.
  • Inspect the load connections (COM, NO, NC) for proper wiring and continuity.
• Incorrect Delay Time:
  
  • Check the position of the minutes/second shift switch.
  • Adjust the time knob (potentiometer). Note that turning clockwise decreases the time.
• Intermittent Operation:
  
  • Check all wiring connections for looseness or poor contact.
  • Ensure the module is not exposed to excessive electrical noise or interference. The optocoupler provides good isolation, but extreme conditions can still affect performance.
  • Verify the power supply is stable and within the specified voltage range.
• Relay Clicking but Load Not Responding:
  This indicates the relay itself is functioning, but there's an issue with the load circuit. Check the load device, its power supply, and the wiring between the relay output and the load.

8. Warranty and Support

For warranty information or technical support regarding your Vikye YYLOCK-2 relay module, please refer to the retailer or vendor from whom you purchased the product. Keep your purchase receipt as proof of purchase.

For general inquiries or additional product information, you may visit the Vikye store on Amazon.