Electrical – suggestion for step selector circuit

switchestoggle switch

I want to run 3 different relays with one momentary push button, with each pressing and releasing of the push button it should activate sequentially Relay 1, Relay 2, Relay3 and after that goes OFF.
I want to do it with only one push button and three different relay not 3 push button.

for example when I push and release the momentary button, it activate relay 1 and it stays ON until I push the button another time, then it activates Relay 2 and deactivate relay 1 and relay 2 stays ON until another push of button, and when Relay 3 is get ON and I push the button, all the relays go OFF and with another push the cycle starts again from Relay 1… it is some kind of step selector for a single phase motor. what is the simplest way I can do it?

Best Answer

Professor Google provided direction on using XOR logic in a chain.

Relay "R0" is just used as a "Pulse" from the momentary push button.

Take your output from R1, R2, R3. . See if it is what you are looking for.

schematic

^{simulate this circuit – Schematic created using CircuitLab}

Related Solutions

Electronic – arduino – How to get this to not read an arduino digital input

If you format you code properly, you can see that it does not what you intended:

void loop()
{
  ignition_mode = digitalRead(ignition);
  if (ignition_mode == HIGH)
    ;  // empty statement which means that nothing is done if the condition is true
  { // new scope-block, which has quite no effect here
    button.tick();
  }
}

You most likely intended:

void loop()
{
  ignition_mode = digitalRead(ignition);
  if (ignition_mode == HIGH)
  { 
    button.tick();
  }
}

Electronic – 1 pulse toggle with simple non programmable electronics

This is actually quite simple to do with a single SPST relay:

schematic

^{simulate this circuit – Schematic created using CircuitLab}

This is completely generic. The power source can be AC or DC. The only requirements are:

Both the switch and the relay contacts must be rated to handle the load current.
The relay coil must accept the same power (AC or DC, same voltage) as the load.

When you push the button, power is applied to both the load and the relay coil. After that, the relay contacts keep the current flowing until the power source is removed.

I once built a high-power version of this to run all of my computer systems. I was living in an area that was subject to bursts of short-term power outages. Since computers and other electronic gear don't particularly like to be "short cycled" like this, I used the circuit to make sure that once the power went off, it stayed off. I would restart everything manually by pushing the button, once the power had settled down again.

Best Answer

Related Solutions

Electronic – arduino – How to get this to not read an arduino digital input

Electronic – 1 pulse toggle with simple non programmable electronics

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