Parameters

DM556

Min

Typical

Max

Unit

Output Current

0.5

-

5.6 (4.0 RMS)

A

Supply Voltage

20VAC

-

50VAC

V

Logic Signal Current

7

10

16

mA

Pulse Input Frequency

0

-

200

kHz

Step Revolution

400

25600

Pulse/Rev

Isolation Resistance

500

MΩ

Suitable Stepper Motors

NEMA 17,23

P1 Function

DM556 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-

P2 Function

DM556 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