FASTECH

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Title 44. I’m using a general stepping motor, but it’s difficult to control the motor at a low speed due to vibration. Are there any suggested products that can operate properly at low speeds?

FASTECH’s Ezi-STEP can control vibration at low speed by using the following functions which are different than other products.

 

1. High precision Micro step function and Filtering
   - The high-performance DSP operates at step resolutions of 1.8° up to maximum 0,0072°(1/250 steps)
   - Ezi-STEP adjusts PWM control signal in every 25uSec, which makes it possible for more precise current
     control, resulting in high-precision Microstep operation.
   - Moreover, at very low speeds, Ezi-STEP can operate smoothly by Software Filtering.

2. Software Damping
  - Motor vibration is created by magnetic flux variations of the motor, lower current from the driver due to back-emf from the motor at high

    speeds and lowering of phase voltages from the driver. Ezi-STEP driver detects these problems and the DSP adjusts the phase of the

    current according to the pole position of the motor, drastically su[ppr]ession vibration. This allows the smooth operation of the motor at high

    speeds.

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