HCW-M135 Dual MOS LED Digital Time Delay Relay Module Instruction Manual

1. Introduction

The HCW-M135 is a versatile Dual MOS LED Digital Time Delay Relay Module designed for precise timing control in various applications. It features a robust dual MOS parallel active output, offering lower internal resistance and higher current capacity, making it suitable for controlling high-power devices. This module supports a wide voltage range and PWM functionality, ensuring reliable performance and flexibility for your projects.

2. Product Features

• High Power Output: Adopts dual MOS parallel active output for lower internal resistance, higher current, and strong power. Capable of continuous current up to 15A at room temperature (400W), and up to 30A with auxiliary heat dissipation.
• Wide Voltage Support: Operates within a DC 5V to 36V range.
• PWM Compatibility: Supports Pulse Width Modulation for advanced control.
• Optocoupler Isolation: Enhances anti-interference ability, ensuring stable operation in industrial environments.
• Parameter Memory: All set parameters are permanently remembered after power failure.
• Digital Display: Clear LED digital display for easy monitoring of timing and status.

3. Specifications

4. Setup and Wiring

Careful wiring is essential for the correct and safe operation of the HCW-M135 module. Refer to the wiring diagram below and follow the instructions.

Wiring Connections:

• VIN: Connect to the positive (+) terminal of your DC 5V-36V power supply.
• GND: Connect to the negative (-) terminal of your DC 5V-36V power supply (system ground).
• SIGN: Connect to the positive (+) terminal of your trigger signal source (DC 3V-24V).
• GND_T: Connect to the negative (-) terminal of your trigger signal source (trigger ground). Note: Signal ground and system ground are not common by default to improve anti-interference, but can be self-shorted to common ground if needed.
• OUT+: Connect to the positive (+) terminal of your load.
• OUT-: Connect to the negative (-) terminal of your load.

Important Wiring Notes:

• The power supply voltage of the module must not exceed 36V to prevent damage.
• The module provides an active live output. The voltage at the output terminals (OUT+, OUT-) will be equal to the input voltage (VIN).
• The DC+ poles of the load are internally short-circuited with VIN. However, the DC- poles of the load (connected to OUT-) must NOT be short-circuited to GND during use. Doing so will bypass the module's control, causing the load to remain constantly powered on.

5. Operating Modes and Parameter Setting

The HCW-M135 module offers several working modes to suit different timing requirements. Parameters include OP (conduction time), CL (disconnection time), and LOP (cycle times).

Working Modes:

• P1 Mode (Triggered Delay Off): After a signal trigger, the relay conducts for OP time and then disconnects.
  • P1.1: Signal triggered again during OP time is invalid.
  • P1.2: Signal triggered again during OP time restarts timing.
  • P1.3: Signal triggered again during OP time resets the timer, disconnects the relay, and stops timing.
• P-2 Mode (Triggered Delay On-Off): A trigger signal disconnects the relay for CL time, then conducts for OP time, and finally disconnects after timing is completed.
• P3.1 Mode (Triggered Cycle On-Off): A trigger signal causes the relay to conduct for OP time, disconnect for CL time, and repeat. If a signal is given again during the cycle, the relay disconnects, and the timer stops. The number of loops (LOP) can be set.
• P3.2 Mode (Auto Cycle On-Off): After power-on (no trigger needed), the relay conducts for OP time, disconnects for CL time, and repeats. The number of loops (LOP) can be set.
• P-4 Mode (Signal Holding Relay On): If a trigger signal is present, the relay remains conductive and the timer resets. When the signal disappears, the relay disconnects after timing OP. If a signal reappears during the timing period, the timing resets to zero.

Parameter Description:

• OP: Conduction time (relay is ON).
• CL: Disconnection time (relay is OFF).
• LOP: Cycle times (1-999 times, "---" represents infinite cycles).

These parameters are independent but shared across different modes. For example, if OP is set to 5 seconds in P1.1, it will also be 5 seconds when switching to P1.2.

How to Set Parameters:

1. Determine Working Mode: Decide which operating mode (P1.1 to P-4) best suits your application.
2. Enter Mode Selection: From the main interface (which displays "000" when idle, or flashes the current mode upon power-on), press and hold the SET button for 2 seconds and then release it. This enters the mode selection interface.
3. Select Mode: Use the UP and DOWN buttons to navigate and select the desired mode (e.g., P3.2).
4. Set Parameters for Selected Mode: Briefly press the SET button. The parameter to be set (OP, CL, or LOP) will flash.
   • Adjust the parameter value using the UP and DOWN buttons. Long-pressing these buttons allows for quick increase/decrease, while short-pressing changes the value by 1 unit.
   • After setting the value, briefly press the STOP button to select the decimal point position, which determines the timing range (see "Timing Range Selection" below).
   • Briefly press the SET button to move to the next parameter for the current mode and repeat the adjustment process.
5. Save and Exit: After setting all parameters for the chosen mode, press and hold the SET button for 2 seconds and then release it. The module will flash the newly set mode and return to the main interface, indicating successful parameter storage.

To view the parameters set in the current mode, simply short press the SET button on the main interface.

6. Timing Range Selection

The timing range can be adjusted from 0.1 seconds (minimum) to 999 minutes (maximum). This is controlled by the position of the decimal point on the digital display.

After setting the parameter values (OP, CL) in the mode selection interface, short press the STOP button to cycle through the timing ranges:

• XXX. (Decimal point in units place): Timing range is 1 second to 999 seconds.
• XX.X (Decimal point in tens place): Timing range is 0.1 seconds to 99.9 seconds.
• X.X.X (All decimal points lit): Timing range is 1 minute to 999 minutes.

Example: To set OP to 3.2 seconds, select the "XX.X" decimal point position, and the display will show "03.2".

7. Relay Enable Mode (Emergency Stop)

This function allows for quick enabling or disabling of the relay's operation.

• ON: The relay is allowed to conduct during its programmed OP conduction time.
• OFF: The relay is prohibited from conducting and remains in a closed (disconnected) state, regardless of programmed timing.

To switch between ON and OFF, short press the STOP button on the main interface. The current state will flash briefly before returning to the main display.

8. Sleep Mode

The module offers two display modes to manage power consumption and visibility.

• C-P (Sleep Mode): If there is no operation for five minutes, the digital display will automatically turn off. The programmed timing functions will continue to run normally in the background.
• O-d (Normal Mode): The digital display remains continuously on.

To switch between C-P and O-d states, press and hold the STOP button for 2 seconds, then release it. The current state will flash briefly before returning to the main interface.

9. Troubleshooting

10. User Tips

• Test Thoroughly: Before deploying the module in a critical application, always test your chosen operating mode and parameters with a non-critical load to ensure it functions as expected.
• Understand Modes: Take time to understand the nuances of each operating mode (P1.1, P1.2, P1.3, P-2, P3.1, P3.2, P-4) to select the most appropriate one for your specific timing needs.
• Heat Management: For loads approaching or exceeding 15A, consider adding auxiliary heat dissipation (e.g., a heatsink) to the MOS transistors to ensure stable operation and extend the module's lifespan.
• Signal Isolation: The module's optocoupler isolation for the trigger signal is a key feature for anti-interference. Utilize separate grounds for the trigger signal and system power if your environment is prone to electrical noise.

11. Maintenance

• Keep Clean: Ensure the module is kept free from dust, moisture, and corrosive substances.
• Inspect Connections: Periodically check all wiring connections for tightness and signs of corrosion or damage.
• Environmental Conditions: Operate the module within its specified working temperature range (-40°C to 85°C) to ensure optimal performance and longevity.

12. Warranty and Support

This product is manufactured by wishiot and sold by STEM Hub Store. For any technical support or warranty inquiries, please contact the seller directly through the platform where the purchase was made. Please retain your proof of purchase for warranty claims.

Note: This document represents the product parameters at the time of editing. Any future changes will not be notified separately.