L6474 Driver Stalling at 15kHz step frequency

[smithderek2000]

Posted on August 05, 2014 at 00:06

Hello,

   We're having issues with the L6474PD driver and stalling. I'm testing it with the L6474PD evaluation board powered by 24V. Logic is at 3.3V. Motor runs fine below 15kHz, but right around that frequency it starts losing synchronicity and stalls out. How do we prevent this problem? #stalling #l6474

[Enrico Poli]

Posted on August 21, 2014 at 14:32

Hello Derek,

The maximum speed of a motor is usually limited by mechanics or supply voltage. Try increasing the supply voltage of your system. Regadrs Enrico

[Dhruv_Poovayaya]

Does L6474PD have internal Protection for BACK EMF , produced by the Stepper Motor's