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Unread 15-01-2013, 18:26
chriz4gx chriz4gx is offline
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Battery Draining

So today my team has probably encountered one of the biggest problems ever. For some reason when we turn on the Crio and the driver station and all three indicator lights(Communication, Robot Code, and Joysticks) go green, the battery icon starts draining away slowly. On the driver station it would show the blue battery icon draining down until the point the driver station shows we have 0.00 Volts. We have checked all electrical wiring and have even checked the voltage in different stages of the whole electrical system. We have changed the battery so its not the problem. We thought it could of been a coding problem but when we deployed the FRC Labview default robot projet(code) we get the same problem once again the battery drains down in less than 6 seconds. Any help will be greatly appreciated. Thxs
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Unread 15-01-2013, 18:40
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Re: Battery Draining

Do you have the jumper across pin 8 on the analog breakout board? If this is missing you can have weird numbers show up on the voltage readout.
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Unread 15-01-2013, 18:54
chriz4gx chriz4gx is offline
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Re: Battery Draining

I think we forgot to wire that thxs . But the voltage readout is only problem the other is that we dont get a motor to move. If the jumper is used to read the voltage readout then couldnt the current still travel throught the jaguars and to the motor? Or does the jumper also prevent the current from flowing to other parts of the robot?
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Unread 15-01-2013, 19:07
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Re: Battery Draining

Making sure to hit enabled?
Power fed to the side car and all 3 LEDs lit up?
RSL (Robot signal/status light) blinking?
Speed controlers blinking or solid LED?
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Unread 15-01-2013, 19:21
chriz4gx chriz4gx is offline
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Re: Battery Draining

All three LEDs in the sidecar lit up, RSL is blinking
I think the the speed controllers were a solid LED, dont really remember
Are the speed controllers suppose to blink?
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Unread 15-01-2013, 19:28
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Re: Battery Draining

If the speed controlers are blinking they are not getting signal from the crio/sidecar. if they are solid they are getting signal. Check the pwm cables for orientation and location and proper insertion and check the code to make sure you're calling the correct pwm port.
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Unread 18-01-2013, 08:05
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Battery Draining

A very rare occurrence is a defect in the 120 amp circuit breaker. Gently tapping the red reset button will cause lights on the robot to flash. If this occurs, the breaker needs to be replaced.
Do you still have full lights on everything when the battery shows 0.0 volts? Does any of the battery wiring get hot? If so, it sounds like you have a dead short somewhere on the robot. Likely a speed controller has been wired out of polarity. Pull all the breakers except the DSC. See if the battery voltage stays up. If it does, replace one breaker at a time to determine the source of the problem.
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