I guess I am struggling with interpreting some of the concepts in the datasheet.
REF: http://support.robotis.com/en/product/d ... rx-24f.htm
----------------------- Sanity Check -------------------------------
Assuming we have an RX-24F in 'Joint Mode':
When we turn the motor ON :
- The 'Torque limit'() is set to 'max torque' (EEPROM 0x0E )
If we change 'Moving Speed' and 'Goal Position':
-The 'Torque Enable' bit is set.
-The 'Torque Limit' will be adjusted to match this speed.
- The Motor torque will be reduced from 'Torque limit' value to 'Punch' value as it enters the 'Compliance Slope' region.
If we change the 'punch' value we are increasing a Torque min if will?
----------------------- Question -------------------------------
My question is this 'Torque min' with reference to 'Torque Limit' or with reference to 'Torque Max'. I.e. if I change the punch to be 0x112 will it be (112/'MaxTorque') of the Max Torque or will it be (112/'TorqueLimit')? The reason I ask is that the 'Compliance Slope' logic hints at the assumption that punch<Torque Limit.
----------------------- My setup -------------------------------
I guess for context I have the RX-24F motor driving a cable pulley (pulley diameter ~2.3mm) that is able to operate accurately with near zero load but with loads of about ~200g I doesn't seem to drive it but it also doesn't shutdown for current protect.
I would have assumed this motor would be powerful enough (way less then the alleged 2.3N/m even if you assume a protection at 30% of max load ).
This is what I changed in firmware (everything else is same as factory default):
Baud = 1Mbps
return delay= 10usec
Compliance Slope= 0x08
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My only last thought was to raise the punch limit but I am not sure if I am just missing something more obvious??
Power wise I am using a PSU running at 12V limited at 2.5A so again there is no way this would be insufficiently fed.
Any help or general thoughts would be greatly appreciated??!!!Statistics: Posted by NoIdeaWhatImDoing — Thu Aug 20, 2015 4:39 pm
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