I just received 3 surplus Compumotor AL-Drive drivers. I have a bunch of surplus 110oz steppers rated at 3.1A / 2.9V that I want connect to these drivers. However, in reading the manual (http://www.compumotor.com/manuals/a-ax/a_ug.pdf) there is a warning:
Motors must have a minimum inductance of 20mH (end to end).
What does 'end to end' mean?
How do I determine what the inductance of a stepper is without access to a scope to measure the time constant?
In other words, Can I use my motors with this driver?