Re: TB6600 torque/testing help
It's impossible to comment without schematics or measurements.
Originally Posted by
MaddCow
I notices that the TB6600 runs considerably cooler than the TB6560. [/url]
The above is from your first post and seems to indicate the chip temperature: the TB6600 will run a bit cooler in the same circumstances due to better spec's than the TB6560.
Originally Posted by
MaddCow
If temperate is any indication it is probably reducing torque because the motor bl gets much hotter much quicker with the tb6560.
You are mentioning the motor temperature in your last post.
This would indicate a smaller motor current (30% kicking in to soon) if the test between both drives use the same supply, motor current settings and are done with a running motor.
A better way to analyse the actual torque is by measuring it, there are several simple ways to do this.
One is to mount a pulley on the motor with a wire wound on it and a weight attached to the end. Clamp the motor at the table edge and increase the weight untill the motor can't lift it anymore and stalls.
You could even calculate the torque at that speed because you know the weight and pulley diameter.
Beware that the weight will drop real fast when the motor stalls........
Open source CNC electronics and accessories:
http://users.skynet.be/ldt/CNC%20electronics/THB6064AH.html