simple matching stepper motor to the driver

[alihureiby]

Hello

Recently i bought emco compact 5 pc lathe but with stepper motor gone.
so i got all the electronict cnc controller , get to know the emco original stepper motor spec.
it should be 10 v stepper motor, 5 degree angle step, (A is uknown for now)

So I would ask, If the stepper motor voltage is higher / Lower than my driver (10 v) , what would happen? which option is ok?
because it's hard to find 10 stepper motor in here.

Thanks

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[propellanttech]

The voltage of a stepper motor is a median number for calculating wattage. (V x A). A stepper motor will work on less or more voltage, but is most happy at it's rated voltage.

If the voltage goes down, the amperage pull from the motor will go up. The controller must limit the amperage to the rate limit for the motor. Too much amperage, and you burn the windings. This causes less torque (less power) because you have effectively cut the wattage supplied to the motor.

The opposite is also true. You can't really over voltage a stepper motor, mainly because the amperage goes down when voltage goes up. But your controller must account for that, and not let the motor receive too many amps (keeps the total wattage within safe limits).

But, you should know that most Emco stepper motors are 5 phase. There are not many 5 phase stepper controllers being made.

James L

Hello

Recently i bought emco compact 5 pc lathe but with stepper motor gone.
so i got all the electronict cnc controller , get to know the emco original stepper motor spec.
it should be 10 v stepper motor, 5 degree angle step, (A is uknown for now)

So I would ask, If the stepper motor voltage is higher / Lower than my driver (10 v) , what would happen? which option is ok?
because it's hard to find 10 stepper motor in here.

Thanks