Hey guys,

Im sorry but I have a question about the auxillaries....can someone please explain how they work and how one would wire a relay to aux high????( please use any references to any special grounding needed)

This is kinda urgent and our schools competition is tomorrow so any help would be much appreciated.

Thanks

Andrew

basically the aux high/low outputs are active collector outputs that active when the stick is in the top 30% or the bottom 30%.
I believe the general way of wiring a relay to one is to (using a 12v battery pack or a suitable resistor) connect batt+ to one side of the relay and the other side of the relay to say aux high.
you should also put a diode in there across the relay to help protect the IBC from spikes when the relay turns off.
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ok but if all that has been done are there any other reasons why the IBC would be sourcing that to ground and engaging the relay without a forward or backward signal (0%)???


Thanks

when there is no signal or the ibc failsafes then the chip turns off so there should be no current flow.

so you have it wired up and it is powering the relay all the time?
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Mechanical engineers build weapons, civil engineers build targets

Just to shed some light on the current set-up. Pin 1 (12V feed) goes to the Batt+ side of the relay. The -ve side of the relay goes to aux High. The -ve of the 2nd relay goes to aux Low. Do we need to connect pin 6 (ground) to anything or will the aux High/Low ground out for us ?

Also, we have been connecting the AUX to channel 6 on the receiver (to use a switch). Should we be using channel 3 on the receiver (which is the left joystick) ?

Thanks !!

Combat Smurf

Defender of everything Blue !

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Should we be using channel 3 on the receiver (which is the left joystick) ?

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This might help.

How to wire up a relay to the IBC aux, however that image shows a solid state relay, the principle is the same, forget about the diode, it's not really needed.
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Originally posted by Valen:
when there is no signal or the ibc failsafes then the chip turns off so there should be no current flow.

so you have it wired up and it is powering the relay all the time?

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diode is needed/reccomended if its not solid state

it sounds like you have some bad wiring or a loose chip.
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there is a diode...and the wiring is correct I believe...the only thing I think that might of happened is somehow the chip is fried or like u said it might be loose...might there be any other possible issues with the setup that we are overlooking???


Thanks

Andrew

what happens when you have the transmitter off (or turn it from on to off)?

the way angus said using the 12v output of the ibc is far better than using the battery, i forgot about that.

can you take a picture of the circuit?
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Mechanical engineers build weapons, civil engineers build targets

The only time I have seen an AUX output turn a relay on at power up is when you reverse pole the main IBC power leads, which usually last 5-15 seconds before the main capacitor goes BANG!

Can you draw us up a paint diagram of how you have wired it? Pictures make things easier to understand and easier for us to reply to.
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when the transmitter is off the relays stay in the same state as they were before it was turned off.

http://www.imagehosting.com/out.php/i390444_untitled.bmp

essential the wiring is simple the rest of the circuits were diconnected but it still occurred...the polarity of the IBC is correct...the actual motor control still works fine. Its just the Aux is kinda funky...lol...oh and I can't take a picture of the actual wiring cuz Im not at school anymore

andrew

check that the diodes are in the right way or they could cause the 12 volt to short through the aux when switched and cause all sorts of problems I dont think it would cause the relay to turn on unless its dureing power up as sometimes the aux switches on for a few mili seconds

sounds like there is something up with the wires or the chip.
Do you have a multi-meter?

where is your school?
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Mechanical engineers build weapons, civil engineers build targets