Stepper motor increase rpm but keep torque

[nomisme]

Is it possible that I keep the typical working torque but increase the rpm by raising my voltage to my motor?

I have this motor and control board:

http://uk.rs-online.com/web/p/stepper-motors/3514631/

http://uk.rs-online.com/web/p/stepper-drives-indexers/2407920/?origin=PSF_421243|acc

My current rpm is just 3.5rpm which is too low to my desired 18rpm but I will need to keep the torque to go on.

please help.

 

[Simon Bridge]

increasing the voltage usually increases the rpm and the torque.
Mind you, if the step timing is a constant then, although the motor spends less time doing each step, the average speed should stay the same.

Changing the average speed of the motor, then, involves making more steps per second.
So what controls that?

 

[256bits]

Generally, increasing the voltage to the stepper motor is done to provide more torque. If undertorqued, the stepper motor will not advance to the next step, ie it will not turn.

 

[tygerdawg]

Your motor should have a torque-voltage-RPM curve given by the manufacturer. Your answer is there.

 

[alphy]

Yes, it is possible to increase the rpm of a stepper motor while maintaining the typical working torque by raising the voltage to the motor. The torque of a stepper motor is directly proportional to the current passing through its coils, while the speed is determined by the frequency of the pulses sent to the motor. By increasing the voltage, you can increase the current and thus maintain the torque while also increasing the speed. However, it is important to note that increasing the voltage can also lead to increased heat and potential damage to the motor, so it is important to consult the motor's specifications and make sure it can handle the increased voltage before making any changes. Additionally, adjusting the motor's driver settings may also help to achieve the desired rpm without compromising torque. It is always recommended to consult with the manufacturer or an expert in the field before making any changes to ensure safe and optimal performance of the motor.