HB-25 #29144 Mounting
RobotWorkshop
Posts: 2,307
I'm getting ready to mount a pair of HB-25 motor controllers. Before I mount them there is one question that I can't seem to find the answer in any of the documentation. (Perhaps I just missed it)
- Is the heat sink electrically isolated from the battery/motor leads? If this is the case then mounting will be easy. Otherwise I'll need to isolate each one from the chassis of the robot.
Robert
- Is the heat sink electrically isolated from the battery/motor leads? If this is the case then mounting will be easy. Otherwise I'll need to isolate each one from the chassis of the robot.
Robert
Comments
If the docs for the HB-25 get another revision this point should be covered so that everyone knows if it is safe to mount multiple HB-25's to the same piece of metal framework.
If the integrated heat sink is isolated it should be added as a "Feature" on the docs for it like:
- Electrically isolated heat sink for ease of mounting (or something like this)
Or, if it is connected to either of the supply leads or motor lines then it should be covered.
Robert
But wouldn't you rather wait and be surprised?
If the docs are updated I hope Parallax can add a note that the mounting holes are connected to the ground lead.....
Robert
http://forums.parallaxinc.com/forums/default.aspx?f=21&m=151769
I'll have the internal Product Owner verify and update the documentation after reading this thread..
Excellent question.
Ken Gracey