Closed Loop Control Of Stepper Motor

Stepper motor systems using closed loop control represent a small percentage of stepper motor applications but if loss of position could be catastrophic to the application yet the system requires high torque at low speed relatively simple architecture and relatively low cost compared to a true servo motor system a closed loop stepper might be the most appropriate solution.

Closed loop control of stepper motor.

Electrical specification manufacturer part number. 8 5 ohms 10 inductance. 0 8 a phase resistance. When an overload condition is detected it will instantaneously regain control using the closed loop mode.

These stepper motors use our alphastep closed loop technology to maintain positioning operation even during abrupt load fluctuations and accelerations without hunting or gain tuning. The rotor position detection sensor monitors the rotation speed and amount. Closed loop stepper systems supply the motor with just enough current to control the load and this results in much less audible noise than open loop setups. To produce the test results shown in the plot of acoustic noise accompanying this article the acoustic noise of each system is measured in a soundproof chamber.

0 054 nm 7 65oz in rated current phase. Nema 8 closed loop stepper motor 0 054 nm 7 65oz in encoder 1000cpr sku. Closed loop capable stepper motors merge the benefits of stepper and servo motor technology. Closed loop stepper motor.