Torque control using DCC charts

Hello,

I "hope" the following is correct:

other motor example:
p2000=6000 rpm = r2700
p2003=10Nm = r2703
kp = 3

r1438=60 rpm = 1% of r2700

In DCC- chart, the values are interprated as percent values;
If the motor is at standstill (so speedcontroller deviation is 1%), you would get in the DCC- chart: P- part speed controller:
1% * 3 = 3% (kp = 3)
If you would connect it to the device, you would get 0,3 Nm (3% of 10Nm). This is like MASTERDRIVES.
If you want to calculate with units, you can multiply with r2700 / r2703 in the DCC chart

What does it mean for the driveobject - unfortunately I don`t know for VECTOR, but for SERVO the unit of the gain factor is Nms/rad.
So deviation is 60rpm (= 1/s), multiply with 3Nms/rad (1rad = 360/(2PI)),
so you get 1/s * 3Nms/(360/(2PI)) = 0,0523 Nm.

Maybe you can test this on your device and post your results (for a test you can change p2000 / p2003 in your project to "my" values). But for a small motor a gain of 3Nms/rad is normally to high - compare to factory setting (this is about 430 * inertia of the motor for SERVO).

Regards
Zako