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Try to control two solenoids at the same time

Discussion in 'Controller Boards' started by Roman Hryntsiv, Oct 4, 2021.

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  1. Roman Hryntsiv

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    Is there any way to control two solenoids by using BlackBox at the same time?

    I have two 24V solenoids that I would like to control simultaneously. I connected one of them to the cooling output of the Black Box and it works perfectly fine. However, I tried to connect the other solenoid by using the toolhead output and it didn't work out. Is there any other ways to connect the second solenoid so I can control them independently?
    Thank you in advance for advice.
     
  2. sharmstr

    sharmstr OpenBuilds Team
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    How are you turning on the toolhead output? You need to make sure you pass it an S value. ie. M3 S1000
     
  3. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Careful! Wiring a load to a signal pin, can damage the signal pin!

    You'd need a drive circuit in between to convert the 5v logic signal to a drive voltage if you want to use the signal outputs.

    Alternatively, wire the second solenoid via the onboard relay (24v+ on PSU > relay pin 1 > relay pin 2 > solenoid+ > solenoid- > to GND on PSU)
    See docs:blackbox:jumper-relay [OpenBuilds Documentation]
     
  4. Roman Hryntsiv

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    Thank you sharmstr
    It did turn on, but it gives me only 3V
    Is there a chance to get 24V output somehow?
     

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