Hunter DC Latching Solenoid with a Relay

Other Hardware General Electronics
1

I am trying to comtrol my Hunter 9v DC latching solenoid with a Sonoff Pro 4CH switch.

Hunter states that the DC solenoid has a pulse width of 250ms. So I got a relay and set it to Normally open with a 250ms pulse.

I intentionally did not draw in the + & - wiring that powers up the realy to make the diagram easier to read.

image
image1754×1224 188 KB

However, this setup only energises the solenoid and it opens. When I send the second pulse it stays open.

Reading up a bit it seems that I would have to reverse the polarity to have the solenoid close.
This is the relay that is in there now : https://www.katranji.com/tocimages/files/438402-214756.pdf

Would I need to replace the relay with a relay that can reverse the polarity?

I am a little unsure about the wiring, need some advice here.

LD

2

Did you try with a much longer pulse?

3

Did you try it? All you need is a 9 volt power supply and the wires to the solenoid. No relay needed for testing!

5

Then you need a DPDT, double pole double throw, relay to do the reversing. Plus a SPST relay to to turn the current on or off.
Or you can use two SPDT, single pole, double throw, relays and arrange the wiring so you can do the reversing and the on/off with the same two relays.
OR you can use a H bridge module with your Arduino and do all the switching electronically.

7

What Sonoff are you referring to?

9

Notice on off only function.

11

Yes, looks like it would work. Are you able to make a relay transfer for the necessary amount of time to actuate the solenoid?

12

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.