2LD556 Microstepping Driver Manual V1.0

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Web Site: www.leadshine.com

1. Introduction, Features and Applications

Introduction

The 2LD545 is a versatility fully digital stepping driver based on a DSP with advanced control

algorithm. The 2LD545 is the next generation of digital stepping motor controls. It brings a unique

level of system smoothness, providing optimum torque and nulls mid-range instability. Motor

auto-identification and parameter auto-configuration technology offers optimum responses with

different motors and easy-to-use. The driven motors can run with much smaller noise, lower

heating, smoother movement than most of the drivers in the markets. Its unique features make the

2LD545 an ideal solution for applications that require low-speed smoothness.

Compared to the DM432, broader input voltage and output current ranges make the 2LD545 can

drive much more motors than the DM432. What’s more, owing to its higher performance DSP,

driven motors can achieve much higher speed (above 3000RPM) than that of the DM432, offering

servo-like performances.

Features

Anti-Resonance, provides optimum torque

and nulls mid-range instability

Motor auto-identification and parameter

auto-configuration

technology,

offers

optimum responses with different motors

Multi-Stepping allows a low resolution step

input to produce a higher microstep output

for smooth system performance

Microstep resolutions programmable, from

full-step to 102,400 steps/rev

Supply voltage up to +50 VDC

Output current programmable, from 1.0A to

4.5A

Pulse input frequency up to 200 KHz

TTL compatible and optically isolated input

Automatic idle-current reduction

Suitable for 2-phase and 4-phase motors

Support PUL/DIR and CW/CCW modes

Over-voltage,

over-current,

phase-error

protections

Applications

Suitable for a wide range of stepping motors, from NEMA size 17 to 34. It can be used in various

kinds of machines, such as laser cutters, laser markers, high precision X-Y tables, labeling machines,

and so on. Its unique features make the 2LD545 an ideal solution for applications that require both

low-speed smoothness and high speed performances.

Contents

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2. Specifications

2LD545

Parameters

Min

Typical

Max

Unit

Output current

1.0

-

4.5 (3.2 RMS)

A

Supply voltage

+20

+30~+40

+50

VDC

Logic signal current

7

10

16

mA

Pulse input frequency

0

-

200

kHz

Isolation resistance

500

MΩ

Mechanical Specifications (unit:mm, 1 inch = 25.4 mm)

Figure 1: Mechanical specifications

Elimination of Heat

Driver’s reliable working temperature should be <60℃(140℉), and motor working temperature

should be <80℃(176℉);

It is recommended to use automatic idle-current mode, namely current automatically reduce to

60% when motor stops, so as to reduce driver heating and motor heating;

It is recommended to mount the driver vertically to maximize heat sink area. Use forced cooling

method to cool the system if necessary.