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Spike Red Light?
I have one of the Innovation First Spikes hooked up to the PD board. Nothing else is connected to the spike, nothing to the M+ and M- and nothing to the pwm port.
When I turn on the robot, the spike has a solid red light. According to the User Guide for the spike, red means reverse. However, if I take a multimeter to the M+ and M- terminals, i get 0V When I take the multimeter to the 12V and GND terminals, I get 12V so the spike is definitely getting power. And definitely no chance of reverse polarity because 12V terminal is connected to the red on the PDB and GND is connected to black on the PDB. Also, fuse looks intact. I am really puzzled by this and I hope you guys can help. |
Re: Spike Red Light?
I seem to remember getting a solid red light with no PWM cable attached, but I can't say for sure. See if the light goes out when you plug the PWM cable in to the Relay port on the Digital Sidecar.
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Re: Spike Red Light?
Have you tired a different spike and got the same problems?
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2 are innovation first, one is the vex pro one. Is it maybe because we aren't sending it a signal? The B on the spike PWM port is where the GND of the PWM cable goes right? |
Re: Spike Red Light?
When the spike outputs +12V, the LED will be green. When it outputs -12V, the LED will be red. It will be yellow when it outputs 0V.
But IIRC, the light is red when it doesn't have signal. |
Re: Spike Red Light?
Note that Spike Relays do NOT get connected to PWM outputs on the Digital Sidecar; instead they must be connected to "Relay" outputs. And yes, B indicates Black (Ground)
Also, actually remove the fuse and check it, or measure its continuity. |
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It sounds like the spike is operating correctly. |
Re: Spike Red Light?
Actually, according to the user guide on the IFI website, the OFF state with both M+ & M- at ground is indicated by the LED glowing orange.
Is the LED really red or does it look somewhat orange? |
Re: Spike Red Light?
I'd vote that the neutral color of the signal light just happens to appear to be a shade of orange/red.
We have debates about what color the real neutral shade is all the time. The fuse is also good if you have a light. It goes out altogether if there's no fuse. The Spike circuits are protected by the fuse. |
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I know for our team we have one or two spikes whose "orange" is actually a bit more red than I would really like. Other than that, they work fine. Try using them, they should still work perfectly.
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Re: Spike Red Light?
Spikes are a very random moor controller. The fuse can be intact, the PWM can be plugged into the correct relay slot, and a light may appear, but sometimes it just refuses to work. Our team has a LOT of OLD spikes and a few, that were tested, work so far without any indication. I know this because tested the same spike and compared I with the new VEX spike by changing the Relay PWMs to the new spike and got a signal. So if the problem persists, just keep testing to your heart's content.
Hope his helped and Happy Competitions! |
Re: Spike Red Light?
Light is usually orange when powered up. We had a red light on one of our spikes when we powered up, pulled out the pwm to find it melted. :eek: Yeah, it smelled bad and was toast. Don't know for sure if the red light was indicating a fault, but I'd put a small amount of money on it.
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