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Attempting to drive the stepper but noticed that the motor is rated for 3V 2A and both of these boards feature a motor driving voltage of 6-30V or 7-30V

Attempting to drive a Wantai 57BYGH420-2 Stepper motor. I have these drivers at my disposal : Easy A3967 Stepper Motor Driver Development Board and Big Easy Driver board v1.2 A4988 stepper motor driver board.

Can this be done while not damaging by stepper?

Stepper

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As long as you stay below the 2A, it will be fine. This is a common misconception about voltage ratings on stepper motors.

The 3V refers to how much DC voltage you could apply to a coil continuously. The coil resistance is probably about 1.5Ω, so if you put 3V DC across a coil it would draw 2A.

The stepper driver will be sending pulses, so you don't actually need to worry about the voltage rating.

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  • \$\begingroup\$ That answers everything, thank you. The driver board has a current limiting pot that I'll set. \$\endgroup\$ – T-800_Front end eng. Sep 1 '18 at 13:35

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