Setting the current level on a A4988 Driver board correctly??

[JaredReed]

How do you set the proper current for the a4988 driver board. I know there is a variable resistor for adjusting the current on the board. Do you want to unplug the stepper motor connector on the GT2560 V3.0 mother board prior to setting the current level, so you won't damage your stepper motor? I also, want to know how you determine the proper orientation of the driver assembly to plug into the mother board. I know that the 2560 board has blue and black connectors and the https://100001.onl/ https://1921681254.mx/ https://happymod.site/ a4988 drivers that came with the original board are blue and black, and gives to a method of know how to plug them in. The drives I have ordered the plugs on the driver are both black. Which pin is Vcc and which pin is ground on the GT2560 mother board? I am sorry I have so many questions and so little knowledge about this subject. As always thanks.

[William]

Hi，
1. You can use a multimeter to measure and rotate the knob above the drive to adjust the drive voltage. as the picture shows:

QQ图片20150914174428.png (132.58 KiB) Viewed 2597 times

2. Unplug and install the driver after turning off the power. Driver installation method（the knob should be at the other end of the capacitor）:

QQ图片20200605095206.png (895.08 KiB) Viewed 2597 times

3. You can refer to the schematic diagram:

QQ图片20200605094644.png (35.65 KiB) Viewed 2597 times