Thread: 3 x 2.5Amp 30V Stepper Drivers
3 x Driver 25PS (DiyCNC boards).
2.5 amp at 30v max.
Only used for a short amount of time.
Last edited by michael; 15-07-2011 at 04:39 PM.
They would run from that power supply. The problem is 30v (let alone 24v) is not enough to run most Nema 23 stepper motors effectively. The higher the voltage you run the motor on the higher the speed you can get since the torque drops off less rapidly. It's because the inductance of the stator coils limit the current that can flow at a low voltage... v(t)=L*di(t)/dt
You want at least 50V ... general rule is required voltage=20*L^0.5 where L is the motor phase inductance.
KK I'll be getting some others then,
I started off with 1nm motors and a unipolar stepper driver on my milling machine. It worked, but snails go faster than the 1mm/s it did.
Last edited by Jonathan; 28-07-2011 at 11:56 AM.
Hi, I was using them to run some 23 frame 2Nm motors, easily did 600rpm which was more than enough for me.
With my 3mm ball screw I got feeds of 1800mm per min no trouble at 24v.
Items are now sold!
Now use the money to get a new avatar, the one you are using is butt ugly, it's even worse than the old one.John S -
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