1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the DROK 12V Timer Relay, Model 300473. This versatile module features an LED display, four distinct operating modes, and a wide adjustable timing range from 0.1 seconds to 999 minutes, making it suitable for various applications requiring precise time-delay control.
2. Safety Information
Please read and understand all safety instructions before operating this device. Failure to do so may result in electric shock, fire, or damage to the product or connected equipment.
- Ensure the power supply voltage matches the device's requirements (12V DC).
- Do not exceed the maximum current rating of 5 Amps for the relay contacts.
- All wiring should be performed by qualified personnel and conform to local electrical codes.
- Disconnect power before making any connections or adjustments.
- Avoid exposing the device to moisture, extreme temperatures, or corrosive environments.
- The output of the digital timer relay uses optocoupler isolation to enhance anti-interference capabilities.
3. Product Overview
The DROK 12V Timer Relay is a compact and user-friendly module designed for precise timing control. It features an LED digital display for clear indication of settings and remaining time, along with three control buttons for easy programming.
3.1. Components
- LED Digital Display: Shows current time settings and operating status.
- Control Buttons (K1, K2, K3): Used for mode selection, time unit adjustment, and value setting.
- Terminal Blocks: For connecting power supply, signal input, and the load.
- Relay: Electromechanical switch for controlling the connected device.
3.2. Dimensions
3.3. Internal View
4. Specifications
| Feature | Value |
|---|---|
| Brand | DROK |
| Model Number | 300473 |
| Coil Voltage | 12 Volts DC |
| Current Rating | 5 Amps |
| Maximum Switching Current | 5 Amps |
| Maximum Switching Voltage | 12 Volts |
| Minimum Switching Voltage | 12 Volts (DC) |
| Operation Mode | Electric |
| Connector Type | Screw Or Quick-connect Terminals |
| Contact Material | Silver, Gold, Or Copper |
| Contact Type | Normally Open |
| Mounting Type | DIN Rail Mount |
| Number of Terminals | 2 |
| Item Weight | 1.76 ounces |
| Package Dimensions | 3.98 x 3.7 x 1.54 inches |
5. Setup and Wiring
Correct wiring is crucial for the safe and proper operation of the timer relay. Refer to the wiring diagram below for guidance.
5.1. Wiring Instructions
- Power Supply Connection: Connect the positive (+) terminal of your 12V DC power source to the 'POWER SUPPLY+' terminal on the relay module. Connect the negative (-) terminal of your 12V DC power source to the 'POWER SUPPLY-' terminal.
- Signal Input: The 'SIGNAL TERMINAL' is where you connect your trigger signal. This can be a positive side of the power supply, a button, a PNP sensor, or a PLC signal.
- Device (Load) Connection: Connect your device (load) to the relay output terminals. The relay acts as a switch, controlling the power flow to your device based on the programmed timing. Ensure the load's current and voltage requirements do not exceed the relay's specifications (5A, 12V).
6. Operating Modes
The DROK 12V Timer Relay offers four distinct operating modes (P-1 to P-4) to suit various timing control needs. These modes are demonstrated in the video below.
6.1. Mode Descriptions
- P-1: Signal Trigger, Relay Connects, Disconnects After Time (T1)
When a signal is triggered, the relay connects immediately. After the set time T1 elapses, the relay disconnects. - P-2: Signal Trigger, Delay T1, Relay Connects, Delay T2, Relay Disconnects (Reset)
Upon receiving a signal, the module starts timing T1. After T1 is over, the relay connects. Then, it starts timing T2. When T2 is over, the relay disconnects, and the module resets, waiting for the next signal. - P-3: Delay T1, Relay Connects, Delay T2, Relay Disconnects (Repeat)
This mode operates in a continuous loop. After T1 time is over, the relay connects. After T2 time is over, the relay disconnects. This cycle repeats indefinitely until power is removed. - P-4: Signal Trigger, Relay Connects, Signal Disappears, Delay T1, Relay Disconnects
When a signal is triggered, the relay connects. If the signal disappears, the module starts timing T1. After T1 is over, the relay disconnects. If the signal is re-triggered during the T1 delay, the delay stops, and the relay remains connected. If the signal disappears again, the re-timing process begins.
7. Programming Instructions
The timer relay is programmed using the three buttons (K1, K2, K3) located on the module. The LED display will guide you through the settings.
7.1. Setting Operating Mode
- Enter Mode Selection: Long press button K1 until the display shows 'P-X' (e.g., P-1, P-2).
- Select Mode: Short press K1 to cycle through the available operating modes (P-1, P-2, P-3, P-4).
- Confirm Mode: Once the desired mode is displayed, short press K2 to confirm and proceed to time setting.
7.2. Setting Time Parameters (T1, T2)
- Adjust Time Value: In the time setting interface, use K3 to increase the time value. Long press K3 for faster adjustment.
- Change Time Unit: Short press K2 to switch between time units: seconds (0.0.0), minutes (0.0), or hours (0). The decimal point position indicates the unit.
- Save and Exit: After setting all required time parameters (T1 and T2 if applicable for the selected mode), long press K1 to save the settings and exit the programming mode. The module will then enter its operational state.
Note: The module automatically saves the last settings when power is cut off.
8. Maintenance
The DROK 12V Timer Relay is designed for reliable operation with minimal maintenance. Follow these guidelines to ensure longevity:
- Keep the module clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Regularly inspect wiring connections to ensure they are secure and free from corrosion.
- Avoid exposing the device to direct sunlight or high humidity, which can degrade components over time.
9. Troubleshooting
If you encounter issues with your DROK 12V Timer Relay, refer to the following common problems and solutions:
- Device does not power on / LED display is off:
• Check the 12V DC power supply connections. Ensure positive and negative terminals are correctly wired and the power source is active.
• Verify the power supply voltage is within the specified range (12V). - Relay does not activate or de-activate as expected:
• Review your selected operating mode (P-1 to P-4) and ensure it matches your application's requirements.
• Check the signal input to the 'SIGNAL TERMINAL'. Ensure the trigger signal is correctly applied and removed according to the chosen mode.
• Verify the time settings (T1, T2) are correctly programmed and the time unit (seconds, minutes, hours) is appropriate.
• Ensure the load connected to the relay output is within the relay's current and voltage limits (5A, 12V). - Inconsistent timing or unexpected behavior:
• Ensure stable power supply. Fluctuations can affect timing accuracy.
• Check for any external electrical interference. The module has anti-interference capabilities, but strong interference can still affect performance.
• Re-program the desired mode and time settings to ensure they were saved correctly. - Difficulty understanding programming:
• Refer to the 'Programming Instructions' section in this manual.
10. Warranty and Support
Specific warranty details and direct support contact information are not provided in the product data. For warranty claims or technical assistance, please refer to the retailer or platform where the product was purchased, or visit the official DROK website for general support information.
