I changed out my contol system from a Novsunun with T6600 stepper drivers to a ESS Smootherstepper and a G540 to run the stepper motors.
When I turn on the power I hear the steppers energizing but they do sound like a copper pipe that is in the wall with water running through it.
Is this normal? Should I have concerns? Now, the motors are not turning, they just have power to them.