All You Need To Know About Relay Timer Module

Buy  Relay Timer Module

It's a 1-Channel Delay Power Relay Module with Adjustable Timing Cycle, with Switches onboard and a Digital LED display. It's typically used in Delay Timer Control Switch Module, Timer Controller for Home Automation. The module runs on a 6-30V operating voltage range through the terminal block blocks present on the board itself, the module can also be operated by a 5.0V power supply through a micro USB. Output capability depends on the relay which is rated to control the load up to DC 30V 10A or AC 250V 10A. 

 The Relay Timer Module is used for switching(through a relay) the connected load. The module is capable of setting up a time till which the relay should be in NO(normally open) condition and also till when the relay should be in NC(normally closed) condition. There are different modes in this module for choosing the way a relay should operate. The modes will be discussed further.

PINOUT

Powering the module: There are three ways to power this module: By supplying input voltage through terminal blocks(Blocks present on the module as shown in the picture above), the module can take up to 6-30V input.
The other way to Power the module is through the female Micro_B port present on the module.
The other way to power the module is through soldering the positive and negative wire of +5V down the module, check the image above to know where to solder. 

Triggering signal: The third and the fourth terminal block from the top is used for triggering the module. High-level trigger signal (3.0V—24V) and systematically common ground improve the capability of anti-interference(Short circuit common ground is also acceptable). The microcontroller could be used for the purpose of triggering, if not that even switches can also work.

Output: Output is through the relay, the terminal blocks present at the output are NO(Normally open), COM(common), and NC(Normally closed). It is used to drive the load through the AC supply or DC supply. The middle terminal block is COM so when the relay is turned on the COM gets connected to the NO, allowing the power to flow through the load.
It is capable of controlling the direct current within 30v 10A or alternating current within 220v 10A.

 

Switches On The Relay Timer Module

SET: As we know there are different modes in this module for powering the relay and to set those modes this switch called "SET" is used. In the beginning, the Digital LED display shows 000, and after pressing the SET switch for approx three seconds the display shows the modes present in this module.

UP & DOWN: Up and down are used for showing the other options present in the module. Let's say while the Digital LED display is showing the modes, we can simply use up and down for seeing the different modes. Also, we can choose a number(minutes or seconds) using up and down.

STOP: Through this switch, we can turn off the module and turn it on again. By pressing this switch for once, displays OFF on the LED and after this, the Relay will not work, the time may go on but the Relay will not be switched. Pressing the STOP switch again will display ON and the module will be ready to work again.

Another function of the STOP switch is Sleep mode. Long press the “STOP” button for 2 seconds and release to shift the status of C-P and O-d. The display will show whether it is on  C-P or O-d mode.
1. C-P sleeping mode: When not using the relay for 5 minutes, the digital tube will turn off the display automatically, and the program will keep working.
2. O-d normal mode: Display of digital tube always on.

Another function of the STOP switch is Selecting the timing range.
In the mode selection(while selecting time) set the parameter value by once pressing the “STOP” button, select the timing range;
XXX. - The decimal point at units digit; Timing range: 1 second ~ 999 seconds.
XX.X - The decimal point at tens digit. Timing range: 0.1 second~99.9second
X.X.X. - All the decimal points are lighted up. Timing range: 1 minute ~ 999 minutes.
For example, if you want to set the OP to 3.2 seconds, you should move the decimal point to the tens digit. Digital display tube: 03.2

PRODUCT USER GUIDE

The Picture shows the steps to connect the Relay Timer Module with the Power supply and the Trigger. We are using a push switch for triggering the module, the negative of the trigger and power supply is set common. The push switch is using the Adapters voltage for triggering purposes. 
As per the circuit, I have used a 12V Adapter for powering the module but the user may use any source for supplying 6-30V. 

This picture shows the connection of the output, the AC supply, and the load(LED Bulb). I have used the LED over here just for an experiment, the user may use any other load but the current should not go above 10A.
As soon as the module allows the relay to work, the AC Voltage gets supplied to the LED and it starts glowing. We can even set a particular time after which the LED should glow and also after which time the LED should be off. This could be done using the switches present on the module.

Operation Modes
These are the ways that define the functionality of a relay, which means each operation has its different function, eg, when an operation P1.1 is operating at that time we can only set the time for the relay to be in NO(Normally open) condition. There are four operations(P1-P4) in a module and those operations have their sub-operations which will be discussed below. 

Before starting with the operations, these are a few terms that you should know:

• OP - The time in which the relay will be ON, the relay will be in a Normally Open state.
• CL - The time in which the relay will be OFF, the relay will be in a Normally Closed state.
• LOP - It is the number of times the OP and CL will be running(1~999 times, “---” represents limitless circuit.)

P1.1: When the module is set on P1.1 mode, it has an option for setting the time in which the relay will be ON, that is the OP mode. As the time finishes the relay is switched back to OFF(Normally Closed). As soon as the module is triggered through the trigger pin, the P1.1 operation starts to run. If the module is triggered again while the OP time is running, the trigger won't affect the running time(the trigger will not restart the operation). 

How to Set the  Relay Timer Module on P1.1 mode?

Step1: By pressing the SET switch for 3 seconds the operations are shown on the Display LED. By using the UP & DOWN switches we can choose between the operations, as we go UP the operation go from P1.1, P1.2 till P4, and by pressing the DOWN switch we come back from where we stated.

Step2: For setting the time of OP, CL, and LOP, choose any operation, let's say it is P1.1, press the SET switch again and you will see the OP on the display after that by pressing the UP & DOWN switch we can adjust the OP. For other operations, we set the CL and LOP the same way as OP.

Step3: After setting the OP time we have to just press the SET switch again for 3 seconds. It is ready to operate, as the module gets triggered the relay will be on for the set time.

P1.2: When the module is set on P1.2 mode, it has an OP mode same as P1.1. As soon as the module is triggered through the trigger pin, the P1.2 operation starts to run but when the module is triggered again while the OP time is running, the module will restart the running time(the operation will restart) this function differs from P1.1. 

P1.3: When the module is set on P1.3 mode, it has an OP mode same as P1.1 and P1.2. As soon as the module is triggered through the trigger pin, the P1.3 operation starts to run but when the module is triggered again while the OP time is running, the module's clock will be stopped(the operation will stop) this function differs from P1.1 and P1.2. 

P1.4: This operation is a bit different from others, although it also has OP mode but the difference is that, while the module is set on P1.4 it will only work when the module gets the power to start, in simple words, as the module will be powered, the P1.4 operation will start to work. The trigger pin has no effect during this operation.

P-2.1:  When the module is set on P2.1 mode, it has an option for setting the time in which the relay will be ON(Normally Open), that is the OP mode, and also the time in which the relay will be OFF(Normally Closed). As soon as the module is triggered through the trigger pin, the P2.1 operation starts to run, CL mode will run first then followed by OP. If the module is triggered again while the OP time is running, the trigger won't affect the running time(the trigger will not restart the operation). 

P-2.2: When the module is set on P2.2 mode, it has an OP as well as CL mode same as P2.1. As soon as the module is triggered through the trigger pin, the P2.2 operation starts to run but when the module is triggered again while the OP time or CL time is running, the module will restart the running time(the operation will restart), this function differs from P2.1. 

P2.3- When the module is set on P2.3 mode, it has an OP, CL mode same as P2.1 and P1.2. As soon as the module is triggered through the trigger pin, the P1.3 operation starts to run but when the module is triggered again while the OP time or CL time is running, the module's clock will be stopped(the operation will stop until triggered again), this function differs from P1.1 and P1.2. 

P3.1: When the module is set on P3.1 mode, it has an OP, CL, LOP mode. As soon as the module is triggered through the trigger pin the OP mode will run first followed by CL. While the P3.1 operation is running, when the module is triggered again while the OP time or CL time is running, the module's clock will be stopped(the operation will stop until triggered again).

P3.2: This operation is a bit different from others but similar to P1.4. It has OP, CL, LOP modes but the difference is that while the module is set on P3.2 it will only work when the module gets the power to start, in simple words, as the module will be powered, the P1.4 operation will start to work. The trigger pin has no effect during this operation.


P-4: This operation is different from all but a bit similar to P1.2. Same as operation P1.2 it has an OP mode but the difference here is that the P4 operation has a Signal holding function which means when the module is continuously triggered the OP time will be on hold and when the triggering stops the OP time begin from starting.

 LED Indication

 As shown in the picture above as the module gets powered the Digital LED display is set on. Also, there is a small red color SMD LED onboard, it switches ON when the module is in OP mode while the operation is running and switches OFF when the OP time finishes. 

Specifications 

After gaining knowledge about Relay Timer Module, if you wish to buy this module then you may click on its name below.
Relay Timer Module

Other components used:
12V 1A  Adapter

Push Button