Quoted price for Nema34 Easy Servo Stepper Motor - 4 Axis Stepper motor driver Peak 4.2A 128 micsteps – Longs Motor

This item includes:

1. 4 pcs Stepper motor driver DM542A, PEAK 4.2A, 128 micsteps

2. 1 pc breakout board

Detailed information

1. Stepper motor driver–DM542A

Introduction:
                                
DM542A is a type  of two-phase hybrid stepping motor driver, The drive voltage of which is from 18VDC to 50VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current. This circuit that it adopts is smiliar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Hording torque when DM542A run under high speed is also significantly higher than the other two-phase driver, what’s more, the positioning accuracy is also higher. It is widely used in middle and big size numerical control devices such as curving machine, CNC machine, and computer embroider machine, packing machines and so on. 
  

 2. Breakout board: 

Description:

• Built in DB25 male connector.
• DB25 Output Pin:P1,P2,P3,P4,P5,P6,P7,P8,P9,P14,P16,P17.
• DB25 Input Pin: P10,P11,P12,P13,P15.
• DB25 GND Pin: P18-P25.
• Power supply: +5V DC.
• Built in C-class Optical-coupler.
• High quality with Surface-mount Tech.

Features:

  High performance, low price

Average current control, 2-phase sinusoidal output current drive

 Supply voltage from 24VDC to 80VDC

 Opto-isolated signal I/O

Overvoltage, under voltage, overcorrect, phase short circuit protection

 14 channels subdivision and automatic idle-current reduction

 8 channels output phase current setting

 Offline command input terminal

 Motor torque is related with speed, but not related with step/revolution  High start speed

  High hording torque under high speed