Leadshine Digital Stepper Drives DM422C 24-40VDC out 2.2A Fit NEMA 14-17 Stepper motor CNC stepper system

Features :

Anti-Resonance, provides optimum torque and nulls mid-range instability
Motor self-test and parameter auto-setup 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 +40 VDC
Output current programmable, from 0.3A to 2.2A
Pulse input frequency up to 75 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
Introduction :

The DM422C is a versatility fully digital stepping driver based on a DSP with advanced control algorithm. The DM422C 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 DM422C an ideal solution for applications that require low-speed smoothness. Compared to the DM432C, the DM422C has smaller size and lower cost.

Specifications :

1 General

Electrical Specifications (Tj = 25oC/77oF)

Parameters

DM422C

Min

Typical

Max

Unit

Output current

0.3

-

2.2 (1.6 RMS)

A

Supply voltage

+20

-

+40

VDC

Logic signal current

7

10

16

mA

Pulse input frequency

0

-

75

kHz

Isolation resistance

500





Mohm

2 Connector Configuration
Connector P1 Configurations



Pin Function

Details

PUL

Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal, each rising or falling edge active (software configurable); 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse,active both at high level and low level (software configurable). For reliable response, pulse width should be longer than 7.5µs. Series connect resistors for current-limiting when +12V or +24V used. The same as DIR and ENA signals.

DIR

DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation; in double-pulse mode (software configurable), this signal is counter-clock (CCW) pulse,active both at high level and low level (software configurable). For reliable motion response, DIR signal should be ahead of PUL signal by 5µs at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Please note that rotation direction is also related to motor-driver wiring match. Exchanging the connection of two wires for a coil to the driver will reverse motion direction.

OPTO

Opto-coupler power supply, and the typical voltage is +5V. Series connect resistors (at the PUL, DIR, ENA terminals) for current-limiting when +12V or +24V used.

ENA

Enable signal: This signal is used for enabling/disabling driver. High level for enabling the driver and low level for disabling the driver. Usually left UNCONNECTED (ENABLED).

Connector P2 Configurations

Pin Function

Details

+Vdc

Power supply, 20~40 VDC, Including voltage fluctuation and EMF voltage.

GND

Power Ground.

A+, A-

Motor Phase A

B+, B-

Motor Phase B



3. Microstep&Current :

Selecting Microstep Resolution and Drive Output Current

Microstep resolutions and output current are programmable, the former can be set from full-step to 102,400 steps/rev and the latter can be set from 0.3A to 2.2A.
However, when it?s not in software configured mode, this driver uses a 6-bit DIP switch to set microstep resolution, and motor operating current, as shown below:

New Leadshine 2-phase DM442C Digital Stepper Motor Drive 40VDC/3.2A Fit



Microstep Resolution Selection

When it?s not in software configured mode, microstep resolution is set by SW5, 6 of the DIP switch as shown in the following table:



Microstep
Steps/rev.(for 1.8o motor)

SW5

SW6

1 to 512

Default/Software configured

on

on

8

1600

OFF

ON

16

3200

ON

OFF

32

6400

OFF

OFF

Current Settings

When it?s not in software configured mode, the first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor?s required current.


Peak Current
RMS Current

SW1

SW2

SW3

Default/Software configured (0.3 to 2.2A)

ON

ON

ON

0.5A

0.35 A

OFF

ON

ON

0.7A

0.50 A

ON

OFF

ON

1.0A

0.71 A

OFF

OFF

ON

1.3A

0.92 A

ON

ON

OFF

1.6A

1.13 A

OFF

ON

OFF

1.9A

1.34 A

ON

OFF

OFF

2.2A

1.56 A

OFF

OFF

OFF



Notes: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.



Typical Connection



New Leadshine 2-phase DM442C Digital Stepper Motor Drive 40VDC/3.2A Fit



Mechanical Specifications ( unit: mm [inch] )



New Leadshine 2-phase DM442C Digital Stepper Motor Drive 40VDC/3.2A Fit