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Unread 11-04-2016, 19:09
jkelleyrtp's Avatar
jkelleyrtp jkelleyrtp is offline
Let's just build a robot
AKA: Jon Kelley
FRC #5511 (Cortechs Robotics)
Team Role: Mechanical
 
Join Date: Jul 2015
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Location: Apex, NC
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Talon SRX - 3 Dead

This weekend we played at our DCMP and ran into some frustrating issues with the shooter and I was just curious if anyone else has ran into something similar with the Talon SRXs.

In our first match shooting, we realized about after 1 shot, the motor would no longer spin up. We're running a minicim to a versaplanetary 1:1 with integrated encoder combo. After closer inspection in the pit, we realized the motor controller simply did not turn on, even after disconnecting the motor and encoder from the system. We verified our connections to CAN and the PDP were solid, tug tested the wago wires, and tested different ports on the PDP to make sure it wasn't an issue with the breakers. Eventually we swapped the motor controller out with a new one and hit the practice field. About 20 shots with the new SRX (same system as before) and no issues. In the next match we barely got out a shot before the motor controller died once more. We swapped, tested, and a third one died. After some reading we decided to ditch the encoder wire and PID, switching entirely over voltage bus for the remainder of the day.

The most interesting/unusual part of all these breakdowns was when we brought a busted SRX over to Marshall (cheers 900) and he confirmed none of the controllers had burnt out. His theory was that somehow we shorted an internal connection and wiped the firmware, effectively bricking the SRX.

Has anyone experienced something like this before or knows how to "unbrick" the SRX?
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Cortechs Robotics 2014-Present
Mechanical, CAD

Last edited by jkelleyrtp : 11-04-2016 at 19:13.
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