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View Full Version : Double Solenoid Wiring


blindguyinanorg
02-15-2004, 01:45 PM
im wondering if i can hook both sides of the double solenoid to the same spike in oposit sence they seem to be mutually exlusive.

Tom Bottiglieri
02-15-2004, 02:41 PM
what you can do is hook up one side of solenoids Positive wire to the relay FWD output. Hook up the negative wire to ground. Do the same with the other side of the solenoid, just to the relay REV output. Then in your program you will be able to open and close your air pistons by setting buttons to relayx_fwd and relayx_rev.

greencactus3
02-15-2004, 03:35 PM
actually, there is a manual on first.org under robot in the manuals...
aha, <a href="http://www2.usfirst.org/2004comp/5-TheRobot-RevA-markup.pdf">here on page 16 (5.6.3 relay modules)</a>


umm....how do you place a URL if you can't use tags? anyone?

jacob_dilles
02-15-2004, 03:43 PM
the way ive found works best requires 4 diods.you hook the postitves from each one up to inversly facing diodes to the o+ and the ground to the o-. this way you can never trigger both at the same time.

blindguyinanorg
02-15-2004, 04:27 PM
are the diodes nesseccary if programed corectly?

ie turn off one before turning on the other.

sence the point of the diodes is to prevent them from going at the same time it would seem a good program could do the same....i dont feel like making another time waisting trip to radio shack.

velocipenguin
02-15-2004, 04:44 PM
The diodes are necessary for blocking if you wire the double solenoid valve in this configuration. There's a diagram in the manual that shows you how to do this; it's simple and inexpensive, and it's definitely worth the extra effort.

Incidentally, does anyone know if it's legal to connect a pair of single solenoid valves using this method?

jacob_dilles
02-15-2004, 09:37 PM
yeah i see no reason why you shouldent be able to wire up 2 single's with one spike. just put the diodes in a box :P

Kautz
10-09-2004, 11:55 PM
what you can do is hook up one side of solenoids Positive wire to the relay FWD output. Hook up the negative wire to ground. Do the same with the other side of the solenoid, just to the relay REV output. Then in your program you will be able to open and close your air pistons by setting buttons to relayx_fwd and relayx_rev.


Will this work using the new Festo double solenoid and using the doides and one spike?