Hello - I am making a device that uses two stepper motors. I have one that is 12v NEAM 17 that has a rates current of 0.4A. I am considering buying a second stepper that has a screw for the shaft making it a linear unit. These seem to be limited at least at a reasonable price. It is rated at 5.6V and 0.75A. Would one power supply that is 24V and 3A work? I am thinking that it would be fine since each of the stepper driver would control limit the amps and a higher voltage is better for speed on steppers.
Post data sheets for the motors so that we know exactly what you have.
For most modern bipolar stepper motors the rated voltage is irrelevant. They use stepper drivers that control the current. You use a voltage that is between the minimum and maximum that the driver is specified for. With the higher the voltage the better the torque and speed of the motor (as I said, up to the max of the driver). So the 5.6V stepper using a modern driver would run fine with a 12V or 24V (or more) power supply.
Yes,
That is correct.
You do not have to set the driver for the maximum rated current of the motor. Set the current so that the motor performs reliably without missing steps. The motor and driver will run cooler and so last longer.
Thank you for the reply. This helped me. I think I have what I need but I am listing the data sheets as requested in case the specs change anything or others need it. These are eBay purchases so some info may be limited.
Motor 1
Product Name: Stepper motor
Model: 42BYGH34-0400A
Material: Metal
Color: Silver
Size: 42x42x34mm (length x width x thickness)
Step angle: 1.8°
Rated voltage: 12V
Rated current: 0.4A
Linear Stepper
NEMA11 non-captive stepper motor with 87mm Tr5*2 lead screw