LeadShine DM556 2/4 Phase Digital Stepper Motor Driver, 20-50VDC 0.5-5.6A

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 +50 VDC
Output current programmable, from 0.5A to 5.6A
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
Introduction :

The DM556 is a versatility fully digital stepping drive based on a DSP with advanced control algorithm. The DM556 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 drives in the markets. Its unique features make the DM556 an ideal solution for applications that require low-speed smoothness.

Compared to the DM432C, broader input voltage and output current ranges make the DM556 can drive much more motors than the DM432C. What's more, owing to its higher performance DSP, driven motors can achieve much higher speed (above 3000RPM) than that of the DM432C, offering servo-like performances.













Specifications :



1. General

Electrical Specifications (Tj = 25oC/77oF)

Parameters

DM556

Min

Typical

Max

Unit

Output current

0.5

-

5.6 (4.0 RMS)

A

Supply voltage

+20

-

+50

VDC

Logic signal current

7

10

16

mA

Pulse input frequency

0

-

200

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 2.5µs. Series connect resistors for current-limiting when +12V or +24V used. The same as DIR and ENA signals.

PUL-

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-drive wiring match. Exchanging the connection of two wires for a coil to the drive will reverse motion direction.

DIR-

ENA+

Enable signal: This signal is used for enabling/disabling the drive. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the drive and low level for disabling the drive. Usually left UNCONNECTED (ENABLED).

ENA-





Connector P2 Configurations



Pin Function

Details

+Vdc

Power supply, 20~50 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 0.5A to 5.6A.
However, when it's not in software configured mode, this drive uses an 8-bit DIP switch to set microstep resolution, and motor operating current, as shown below:





Microstep Resolution Selection

When it's not in software configured mode, microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:



Microstep
Steps/rev.(for 1.8o motor)

SW5

SW6

SW7

SW8

1 to 512

Default/Software configured

on

on

on

on

2

400

off

on

on

on

4

800

on

off

on

on

8

1600

off

off

on

on

16

3200

on

on

off

on

32

6400

off

on

off

on

64

12800

on

off

off

on

128

25600

off

off

off

on

5

1000

on

on

on

off

10

2000

off

on

on

off

20

4000

on

off

on

off

25

5000

off

off

on

off

40

8000

on

on

off

off

50

10000

off

on

off

off

100

20000

on

off

off

off

125

25000

off

off

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 (0.5 to 5.6A)

OFF

OFF

OFF

2.1A

1.5A

ON

OFF

OFF

2.7A

1.9A

OFF

ON

OFF

3.2A

2.3A

ON

ON

OFF

3.8A

2.7A

OFF

OFF

ON

4.3A

3.1A

ON

OFF

ON

4.9A

3.5A

OFF

ON

ON

5.6A

4.0A

ON

ON

ON
Note: Due to motor inductance, the actual current in the coil m condition.