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This item includes: 

2 PCS Nema 23 Stepper Motors Dual shafts WT57STH115-3004B with 425oz-in holding torque,WT57STH115-3004B=57BYGH115-003B

2 PCS Stepper Drivers with 4.2A DQ542MA replacing M542,

 1, Stepper Motor  

Technical Specifications 

Part No.:                          WT57STH115-0304B(57BYGH115-003B) Dual Shaft

Frame Size:                    NEMA23

Step Angle:                    1.8 degree

Voltage:                           6.3VDC

Current:                           3 A/phase

Resistance:                     2.1Ohm/phase

Inductance:                    9mH/phase

Holding torque:              30Kg-cm       425oz-in

Rotor inertia:                  810 g-cm2

Detent torque:                0.89 kg-cm

Number of wire leads:  4  

Weight:                            1.55KG

Length:                            115mm

2, Stepper Motor Driver DQ542MA

Introduction

DQ542MA 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 similar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Hording torque when DQ542MA 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, Computer embroider machine, packing machines and so on.

Features:

l  High performance, low price

l  Average current control, 2-phase sinusoidal output current drive

l  Supply voltage from 18VDC to 50VDC

l  Opto-isolated signal I/O

l  Overvoltage, under voltage, overcorrect, phase short circuit protection

l  15 channels subdivision and automatic idle-current reduction

l  8 channels output phase current setting

l  Offline command input terminal

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

l  High start speed

Electrical specification:

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