This is about putting a gear motor on the axis.
I am very puzzled.
I have this servo gear motor mounted on the knee. It is a 65V motor,
4.4 amp continuous and 26 amp maximum. 15:1 gear reducer.The next thing I did is I connected it to a A-M-C 30A8 drive, the same kind as what I have on all other axes.
I have NOT connected this drive to EMC2 at all, and I send it a analog signal from just a little DC power supply.
I tried torque mode and velocity mode.
It behaves VERY weirdly. If I tell it to move the knee down, it moves it a little (think 0.5 inch), and then stops and the knee actually comes back up (like by 0.1 inch)!
It does not move it up by more than 0.1 inch and does not come back, as in the opposite example.
I am struggling to find an explanation.
The only one that I can come up with about this going down behavior, is that perhaps the pneumatics of the pneumatic knee support is messing me up.
Or, perhaps, this is a bad servo drive.
I am at a big loss, any ideas would be most welcomed.
i