What are their limitations?

[Admin]

Low Efficiency – Unlike DC motors, stepper motor current consumption is independent of load. They draw the most current when they are doing no work at all. Because of this, they tend to run hot.
Limited High Speed Torque - In general, stepper motors have less torque at high speeds than at low speeds. Some steppers are optimized for better high-speed performance, but they need to be paired with an appropriate driver to achieve that performance.
No Feedback – Unlike servo motors, most steppers do not have integral feedback for position. Although great precision can be achieved running ‘open loop’. Limit switches or ‘home’ detectors are typically required for safety and/or to establish a reference position.

[dominic_catacutan]

In a two phase bipolar stepper motor, how many field coils are placed?

[Admin]

the field coils are only 4

[KathrynB]

Why the stepper motor has a limitation?

[Admin]

the reason why stepper motor has a limitation because of it low efficiency unlike in a servo and also it has a limited high speed torque and the last reason is it no feedback unlike in a servo

[Cin]

good day sir what are the maximum torque?

[Admin]

Cin the maximum torque is the "holding torque"

[KathrynB]

the reason why stepper motor has a limitation because of it low efficiency unlike in a servo and also it has a limited high speed torque and the last reason is it no feedback unlike in a servo

ohhhh. I see, thanks for the info

[Admin]

welcome kathrynB

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