Features

• Anti-Resonance for optimal torque, extra smooth motion, low motor heating and noise
• Motor auto-identification and parameter auto-configuration for optimal torque from wide-range motors
• Step & direction (PUL/DIR) control
• Multi-Stepping for smooth motor movement
• Automatic idle-current reduction (configurable) 
• TTL compatible and optically isolated inputs
• Input voltage 20-48VDC
• 16 selectable micro-step resolutions of 400-25,600 via DIP switches
• 8 selectable output current settings of 1.8 – 5.6A via DIP switches
• Soft-start with no “jump” when powered on
• Pulse input frequency up to 200 KHz.
• Protections for over-voltage and over-current
• Small size (118x75.5x33mm)
• Removable terminal blocks

DM556EU

Typical

Unit

Output Current

1.8

-

5.6 (4A RMS)

Amps

Supply Voltage(DC)

20

24-48

50

VDC

Logic signal current

7

10

16

mA

0

-

80

Khz

Isolation resistance

500

-

-

MΩ

Pin Function

Details

PUL﹢(+5V)

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- (PUL)

DIR+ (+5V)

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

DIR- (DIR)

ENA+ (+5V)

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

ENA- (ENA)

Pin Funtion

Details

Gnd

Power Ground

+Vdc

Power supply, 20~45 VDC, Including voltage fluctuation and EMF voltage.

Phase A+, A-

Motor Phase A

Phase B+, B-

Motor Phase B