Advantages and disadvantages of the stepper motor

Advantages

  • It is mechanically simple.
  • It requires less maintenance.
  • It can be driven in open loop without feedback
  • As it responds directly to digital control signals, stepper motors are natural choice for digital computer controls.

Disadvantages:

  • Low efficiency with ordinary controller.
  • Limited power output and sizes available
  • Low efficiency with ordinary controller.
  • Fixed step angle