two soleniods controlled by one relay

[johncap100]

I think you misunderstood, I am powering the solenoids via the relay ON the cRio. I am not using any spikes. I am simply wiring the solenoid to the relay on the cRio. I notice that according to the spec sheet you can run up to 8 solenoids off the relay on the cRio. does that make sense?
thanks

Originally Posted by Alan Anderson

Yes, you can.

Make sure you have a red wire connected to the control/power of the solenoid, and a black wire connected to the common/ground.

Power a Spike from a 20A circuit breaker on the Power Distribution board. Connect the first solenoid's red wire to M+ on the Spike. Connect the second solenoid's red wire to M-. Connect both black wires to the GND pin of the Spike (where they will find a path back to the PDB).

To turn both solenoids off, set the spike OFF.
To turn the first solenoid on, set the spike FWD.
To turn the second solenoid on, set the spike REV.
To turn both solenoids on, set the spike ON.

[Alan Anderson]

Originally Posted by johncap100

I think you misunderstood, I am powering the solenoids via the relay ON the cRio. I am not using any spikes. I am simply wiring the solenoid to the relay on the cRio. I notice that according to the spec sheet you can run up to 8 solenoids off the relay on the cRio. does that make sense?

No, it doesn't make sense. The only relay I know of that is allowed to control a solenoid on an FRC robot is a Spike. The NI 9472 Digital Output module with a Solenoid Breakout may also be used instead of a relay.

I am not aware of any relays on the cRIO.

[Racer26]

@Alan et al: I believe the OP is mistakenly referring to the NI 9472 module as a "relay". The part I'm not understanding here is the question. If you have wired one solenoid to the SOLENOID BREAKOUT module, which plugs into the connector on the NI 9472, why are you having difficulties wiring a second?

There are 8 ports on the Breakout, and you simply wire them to your solenoids, and write some code to turn them on and off at the appropriate times?

EDIT: Side note, the OP is listed as having association only with an FTC team. Is this correct or just out of date. This could explain why they're having difficulty with FRC gear.

[Mark McLeod]

I interpret his question to be asking if two solenoids can be connected to a single Solenoid Breakout pin (so they'd act in concert).

I have to go review the 2011 rules to answer with some supporting evidence.
(Blackberry's don't easily lend themselves to that kind of search.)

[JesseK]

If the cyllinders are activated at the same time, then another option is to use 1 solenoid with 2 Cyllinders via T-connectors after the solenoid. We do this for our cyllinders that activate shift our shifting transmissions.

[Jon236]

Originally Posted by Mark McLeod

I interpret his question to be asking if two solenoids can be connected to a single Solenoid Breakout pin (so they'd act in concert).

I have to go review the 2011 rules to answer with some supporting evidence.
(Blackberry's don't easily lend themselves to that kind of search.)

So get a Droid!