Hello everybody
I'm using MotorControl Workbench and Motor Control SDK 5.4.1.
I need to control some power tools up to currents of 40A peak. I developed a board similar to IHM08M1 and I'm very satisfied of the power delivered to motors. There's only a "little" problem: I should improve the behavior at heavy loads when motor has to startup, because I noticed that in this case it fails to start. I've a linear ramp of 750ms in which motor moves from 0 rpm to 1650 rpm (15% of nominal speed at free load) and the final current in this phase is the nominal current (so the max current we can give to the motor).
Could be a practical solution create a phase in which current rumps up very quickly to nominal value and desired speed moves from 0 rpm to a little value in a brief time? After that phase I would add a phase in which current is still constant at the maximum value and speed moves from the previous little value to the 15% of nominal speed to exit from open loop mechanism.
Did anybody try a solution like this? Or maybe there's a better way?
Thank you very much for support.
Roberto
