Driver Station Voltage Burnout

[thetonio96]

Does someone know what Voltage Burnout message mean on the new Driver Station 2015?

[cgmv123]

Assuming it says "brownout" and not "burnout", at some point, the RoboRIO input voltage was below ~7 volts.

[Ozuru]

I had this occur when stress testing our motors and control system.

A brownout occurs when it goes below roughly seven(?) volts and has a high risk of crashing your system and dropping the roboRIO. If you want to check this out, make your CIM motors reverse polarities very quickly and you'll see what I mean.

[Jacob Bendicksen]

We had some interesting experiences with the beta hardware when we were testing the brownout characteristics - it's worth it to try to get a brownout (put in a low battery, push a wall or something) to see what drops out first. Also, if your robot design raises the possibility of a brownout (if you have a lot of motors pulling a lot of power), think about what will happen if a brownout does occur - the solenoids do some weird things, which could potentially be unsafe.

[GatorRobotics]

Our Driver Station is showing Voltage Brownout, and we can't figure out what is causing it. We have disconnected everything from the power distribution except for the RoboRIO, and still get the error. Has anyone had this problem? If so, any remedies?

[notmattlythgoe]

Originally Posted by GatorRobotics

Our Driver Station is showing Voltage Brownout, and we can't figure out what is causing it. We have disconnected everything from the power distribution except for the RoboRIO, and still get the error. Has anyone had this problem? If so, any remedies?

What is the driver station reporting the battery voltage as?

[Mark McLeod]

Possible causes:

• Low battery (test with meter or use Driver Station readout)
• Poor connections between the battery and the PDP (test with meter)
• Heavy draw or short on circuit off PDP (pull breakers)

On the right of the Driver Station is a button "Logs..."
Click on it and you will be able to browse past data logs made while your robot was running.

One of the plotted lines is your battery voltage and orange marks at the top show when Battery Brownouts occur.

You can correlate the dips in battery voltage to the occurrence of brownouts.

RoboRIO Brownout and Understanding Current Draw

[GatorRobotics]

23.+ is the voltage showing on the DS. I think we may have figured it out. We had the RoboRIO connected to a 24V output on the Power Distribution Board, we switched it to a 12V and it works. Small oversight on our part.

[Addison4300]

This happened to us. we were driving tank style and had one set of wheels going forward and the other going backwards. we were using the regular basic wheels. the strain from the friction of the floor was too much and cause us many brownouts while turning. so basically what i'm saying is too much strain on the motor will cause it.

[cgmv123]

Originally Posted by GatorRobotics

We had the RoboRIO connected to a 24V output on the Power Distribution Board

You're using the old PDB? The new PDP doesn't have a 24 volt supply.