Other Parts Discussed in Thread: DRV8462, DRV8434, DRV8711
Using the DRV8462 to drive 2 Stepper Motors gives different performance values. As one Motor was able to run, the other does not run at all.
1) TI Evaluation Board DRV8462, Supply Voltage 48V, Supply Current 8A
2) Motor under Test Motor 2A: 23H2076-200 and Motor 4A: 23H2076-400
3) Break
Type |
Current |
Resistance |
Inductance |
Holding Torque |
Rotor Inertia |
Length |
Mass |
|
(A) |
(Ω) |
(mH) |
(N·m) |
(g·cm2) |
(mm) |
(g) |
23H2076-400 |
4 |
0.6 |
2.4 |
2 |
480 |
76.5 |
1060 |
23H2076-200 |
2 |
2.4 |
9 |
2 |
480 |
76.5 |
1060 |
The Motor 4A with Full Scale Current 5A was able to turn with differnt speeds and torque:
Speed [rpm] |
Torque [Nm] |
300 |
1.34 |
600 |
1.1 |
900 |
0.27 |
1200 |
0.28 |
1500 |
0.09 |
1800 |
0.25 |
2100 |
0.06 |
2400 |
0.06 |
2700 |
0.24 |
3000 |
0.2 |
3300 |
0 |
3600 |
0 |
The Motor 2A with Full Scale Current 2.83A (also differnt values tested) was able to turn only to a speed of 400rpm. Higher speed where not possible.