How to Use a DC Voltage On-Off Infinite Loop Cycle Delay Relay Module

Overview

A DC Voltage On-Off Infinite Loop Cycle Delay Relay Module is a versatile timer control device that allows you to automate on/off switching of electrical devices for set time intervals. It supports both single-delay (ON/OFF) and cyclic delay modes, and is applicable for controlling various types of electrical equipment, such as pumps, lights, and test systems.

 

Features

• Voltage Input: Compatible with DC 5V, 12V, or 24V.
• Adjustable Time Delays: Control ON and OFF durations with precision.
• Two Modes: Once mode (single delay) and cycle mode (repetitive delay).
• Time Range Options:
  • Jumper OP1: 1 to 100 seconds (0.1-second accuracy).
  • Jumper OP2: 1 second to 15 minutes (1-second accuracy).
• Compact Size: 7x2 cm.

 

Key Components

1. Power Input Terminals: Connect your DC input (5V, 12V, or 24V).
2. Relay Output Terminals: Connect the device you want to control.
3. Time Adjustment Knobs/Resistors: Adjust the ON/OFF delays.
4. Jumpers: Select time range and operational modes.
   • Jumper OP1: Time range of 1 to 100 seconds.
   • Jumper OP2: Time range of 1 second to 15 minutes.
   • Jumper OP3: Select Once Mode (single delay).
   • Jumper OP4: Select Cycle Mode (continuous loop of ON/OFF).

 

 

Step-by-Step Instructions

Step 1: Power Supply Connection

Identify the Power Input Terminals:

• The module requires a DC power source (5V, 12V, or 24V), depending on the model you are using.
• Connect the positive lead to the VCC terminal and the negative lead to the GND terminal.

Step 2: Output Device Connection

Identify the Relay Output Terminals:

• Connect your load (e.g., light, pump) to the COM and NO (Normally Open) or NC (Normally Closed) terminals. Use the NO terminal if you want the device to be off by default, and the NC terminal if you want it to be on by default.

Step 3: Select Mode Using Jumpers

• In this mode, the relay will turn ON when triggered, stay on for the delay time (T1), and then turn OFF.
• If triggered again during the delay, it will reset the process.

Cycle Mode (Jumper OP4):

• In this mode, the relay will alternate between ON and OFF states. It will turn ON for the delay time (T1), turn OFF for the delay time (T2), and repeat the cycle indefinitely.
• If triggered during the delay, the cycle will be interrupted and reset.

Step 4: Adjusting Time Delays

Set Time with OP1/OP2:

• OP1: Adjusts the time range between 1 to 100 seconds with a 0.1-second accuracy.
• OP2: Adjusts the time range between 1 second to 15 minutes with 1-second accuracy.

Use the onboard adjustable resistors or potentiometers to set your desired delay times (T1 for ON and T2 for OFF).

Step 5: Trigger the Module

• Once everything is connected and the timing is set, the module will begin operating once power is applied. You can trigger the module manually or via external input, depending on your setup.

 

Applications

• Timer Control for Equipment: Automate equipment to turn off after a certain time (e.g., auto power-off after 5 minutes).
• Repetitive Test Circuits: Automatically switch devices on and off for set intervals (e.g., 1 minute on, 1 minute off).
• Aquarium Pumps: Create an intermittent pumping system to oxygenate a fish tank.
• General Timer-Based Automation: Suitable for a wide range of projects needing precise timing control.

 

Conclusion

The DC Voltage On-Off Infinite Loop Cycle Delay Relay Module offers flexible control for time-based switching tasks. With simple wiring, adjustable delays, and selectable operational modes, it’s an ideal solution for automation projects, repetitive testing, or any application requiring precise control over power cycling.