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1. Introduction, Features and Applications
Introduction
The DM422 is a versatility fully digital stepping driver based on a DSP with advanced control
algorithm. The DM422 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
self-test and parameter auto-setup 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 DM422 an ideal
solution for applications that require low-speed smoothness. Compared to the DM432, the DM422
has smaller size and lower cost.
Features
l Anti-Resonance, provides optimum torque
and nulls mid-range instability
l Motor self-test and parameter auto-setup
technology, offers optimum responses with
different motors
l Multi-Stepping allows a low resolution step
input to produce a higher microstep output
for smooth system performance
l Microstep resolutions programmable, from
full-step to 102,400 steps/rev
Applications
Suitable for a wide range of stepping motors, from NEMA frame size 14 to 23. 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 DM422 an ideal solution for applications that
require low-speed smoothness.
Tel: +086 0755-26434369
DM422 Microstepping Driver Manual V1.0
l Supply voltage up to +40 VDC
l Output current programmable, from 0.3A to
2.2A
l Pulse input frequency up to 75 KHz
l TTL compatible and optically isolated input
l Automatic idle-current reduction
l Suitable for 2-phase and 4-phase motors
l Support PUL/DIR and CW/CCW modes
l Over-voltage,
over-current,
phase-error
protections
1
Web Site: www.leadshine.com
2. Specifications
Electrical Specifications (T
= 25℃)
j
Parameters
Min
Output current
0.3
Supply voltage
+20
Logic signal current
7
Pulse input frequency
0
Isolation resistance
500
Mechanical Specifications ( unit: mm [inch] )
Figure 1: Mechanical specifications
Elimination of Heat
l
Driver's reliable working temperature should be <70 , and motor working temperature should
be <80 ;
℃
l
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;
l
It is recommended to mount the driver vertically to maximize heat sink area. Use forced cooling
method to cool the system if necessary.
Tel: +086 0755-26434369
DM422 Digital Stepping Driver Manual V1.0
DM422
Typical
Max
-
2.2 (1.6 RMS)
-
+40
10
16
-
75
℃
2
Web Site: www.leadshine.com
Unit
A
VDC
mA
kHz
MΩ
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