I purchased a set from www.stepmasternc.com and I dont know how to set up the voltage and current on the board.
I got the instruction here:
but still dont know how to test for voltage output and ampere for the motors. Last I had the unit plugged in at 24vdc, the motor and the board got hot so I quickly disconnected it.
I hoping someone who have the same board can help me solve this dilema before I plug it in again to run some samples codes.
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Let's say your motor is rated for 1 Ampere per phase, then adjust 1.25 x 1= 1.25 Volts between ground and Tp1 using VR1.Formula for proper Vref at said TP 1= (1.25 x desired current value)
(i.e. stepper motor current rating of 2 amps = Vref of 2.5 vdc)
VR2 adjustment is intended to change the %Slow/Fast decay, leave it as it is and follow the instructions if you want better performance.
Last edited by kreutz; 01-21-2007 at 10:36 PM.