Hello people, first post for me.
i have minimal electronic knowledge, but i work as an auto electrician so I'm not completely in the dark about circuits.
i would like some help to come up with a circuit diagram so i can build the device i need
i need a device that will control some air solenoids
my power source is 12volt DC
my trigger input (input 1) will switch from +12v to 0v dc (it will go 0v to trigger then once triggered go back to 12v)
when the device receives this trigger input it needs to control an air solenoid ( it can be a 12v output to power the air solenoid winding or it could ground the air solenoid winding either way is fine i haven't wired the solenoids yet)
OK, so device has received 1 trigger and it has one solenoid in operation,
the next trigger signal the device gets (still input 1) needs to now power up another air solenoid BUT also keep the first one powered
i need a small delay from when first trigger is received until it recognizes the next trigger (about 1/2 a second) just in case the trigger accidentally 'bounces' for want of a better term.
i need to operate 4 solenoids in this way, with every next solenoid it needs to keep the previous solenoid/s activated also.
i will then need a way to reset the output back to the first (turning off all solenoids) but i guess i can just do this by switching off the 12v source.
that will be the basic device i need.
but if your feeling extra helpful it would be nice to have an option that when a signal (either +12v or 0V )is received via another input (input 2) it switches on the first two solenoid outputs and ignores the trigger on input 1, effectively overriding it.
then on a third input (input 3) i would like a push button that when the signal is applied to input 2 the push buttons will allow you to select the last 2 solenoids ( push button once,one is applied (so 3 in total) push button again and the last is applied )
but if the signal is not on input 2 the buttons on input 3 wont do anything
and i will need a delay(again 1/2 second) on the push button input just in case i accidentally push the buttons to quick
i must add the solenoids draw less than 1 amp when in operation, im unsure of what the peak is i haven't measured it but at a guess it wouldnt be more that 6amps @12v
any help is greatly appreciated
thank you,
blair
i have minimal electronic knowledge, but i work as an auto electrician so I'm not completely in the dark about circuits.
i would like some help to come up with a circuit diagram so i can build the device i need
i need a device that will control some air solenoids
my power source is 12volt DC
my trigger input (input 1) will switch from +12v to 0v dc (it will go 0v to trigger then once triggered go back to 12v)
when the device receives this trigger input it needs to control an air solenoid ( it can be a 12v output to power the air solenoid winding or it could ground the air solenoid winding either way is fine i haven't wired the solenoids yet)
OK, so device has received 1 trigger and it has one solenoid in operation,
the next trigger signal the device gets (still input 1) needs to now power up another air solenoid BUT also keep the first one powered
i need a small delay from when first trigger is received until it recognizes the next trigger (about 1/2 a second) just in case the trigger accidentally 'bounces' for want of a better term.
i need to operate 4 solenoids in this way, with every next solenoid it needs to keep the previous solenoid/s activated also.
i will then need a way to reset the output back to the first (turning off all solenoids) but i guess i can just do this by switching off the 12v source.
that will be the basic device i need.
but if your feeling extra helpful it would be nice to have an option that when a signal (either +12v or 0V )is received via another input (input 2) it switches on the first two solenoid outputs and ignores the trigger on input 1, effectively overriding it.
then on a third input (input 3) i would like a push button that when the signal is applied to input 2 the push buttons will allow you to select the last 2 solenoids ( push button once,one is applied (so 3 in total) push button again and the last is applied )
but if the signal is not on input 2 the buttons on input 3 wont do anything
and i will need a delay(again 1/2 second) on the push button input just in case i accidentally push the buttons to quick
i must add the solenoids draw less than 1 amp when in operation, im unsure of what the peak is i haven't measured it but at a guess it wouldnt be more that 6amps @12v
any help is greatly appreciated
thank you,
blair
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