3 Phase Stepper Motor Driver-Electric Stepper Motor Bi-Polar Micro-Stepping Driver

3 Phase Stepper Motor Driver-electric stepper motor bi-polar micro-stepping driver

1)3 phase step motor driver

2)low noise

3)low heat

4)CE

Step motor driver

Description of 3 phase step motor driver

PSD78AC-3P/3 phase step motor driver

Key Features:

AC80 to 220V Supply Voltage

H-Bridge, 3 Phase Bi-polar Micro-stepping Drive

Suitable for 3-phase, step motors, with NEMA size 23 to 42

Output current selectable from 1.8 ~ 7.8A peak

Current reduction by 50% automatically, when motor standstill mode is enabled

Pulse Input frequency up to 200 kHz

Optically isolated differential TTL inputs for Pulse, Direction and Enable signal inputs

Selectable resolutions up to 12800 steps

Over Voltage, Coil to Coil and Coil to Ground short circuit protection.

Introduction

The PSD78AC-3P is one of the few Direct-On-Line Step Motor Drive, available in the industry, which can be simply power up from the AC power source without the need of a Power Supply. This makes it cost effective and space efficient.

PSD78AC-3P is a bi-polar three phase micro-stepping drive applying pure-sinusoidal current control technique. It had the potential of delivering more torque with smoother stepping motion with a three phase motor. This results in lower vibration and higher performance as compared to the two phase type. It is best suited for applications that desire extreme low speed smooth motion, especially in multi-axes linear and circular interpolated application, or application that is sensitive to vibration, at extreme slow speed.

The higher voltage input of the PSD78AC-3P make it possible to excite a three phase bi-polar hybrid step motor, with size from NEMA 23 up to NEMA 42.

With precise current control technique and optimization in speed control, this three phase PowerStep drive is well suited for three phase hybrid step motor, producing a performance close to a brushless DC servo operation.