Blown talon srx modules

[GregGarner]

Our team has blown 3 talon srx modules. We have been watching very carefully to try to understand how they got fried. The common element seems to be that they stop working when we move the motor connected to the talon manually. My theory is that the motor is generating a voltage that is backfeeding the talon and frying it. We believe at least one of the talons was fried when there was no 12v power on the talon.

We did verify that there is no short to ground or other kind of short. Each time the talon fried it happened on a different motor.

The motors are generating voltage when moved, and if there it's no load presented by the talon then the voltage can be very high.

Had anyone else seen this problem?

We did send the first two units back to crosstheroads electronics but have not heard back from them on the analyses. They did replace the first two.

We will send the third talon back for analyses as well.

The purpose of this thread us to try to understand why we are blowing talons, and to see if anyone else is having a similar problem.