Contents

3

Operating Environment and other Specifications

Cooling

Natural Cooling or Forced cooling

Environment

Avoid dust, oil fog and corrosive gases

Ambient Temperature

0℃ － 50℃ (32℉ － 122℉)

Humidity

40%RH － 90%RH

Operating Temperature

70℃ (158℉) Max

Operating Environment

Vibration

Storage Temperature

-20℃ － 65℃ (-4℉ － 149℉)

Weight

Approx. 280g (10 oz)

3. Pin Assignment and Description

The 2LD545 has two connectors, connector P1 for control signals connections, and connector P2 for

power and motor connections. The following tables are brief descriptions of the two connectors.

More detailed descriptions of the pins and related issues are presented in section 4, 5, 9.

Connector P1 Configurations

Pin Function

Details

PUL+

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.

DIR+

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.

ENA+

ENA-

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).

Contents

4

Selecting Active Pulse Edge and Control Signal Mode

The 2LD545 supports PUL/DIR and CW/CCW modes and pulse actives at rising or falling edge. See

more information about these settings in Section 13. Default setting is PUL/DIR mode and rising

edge active (NPN, and PNP control signal is on the contrary).

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

4. Control Signal Connector (P1) Interface

The 2LD545 can accept differential and single-ended inputs (including open-collector and PNP

output). The 2LD545 has 3 optically isolated logic inputs which are located on connector P1 to accept

line driver control signals. These inputs are isolated to minimize or eliminate electrical noises coupled

onto the drive control signals. Recommend use line driver control signals to increase noise immunity

of the driver in interference environments. In the following figures, connections to open-collector and

PNP signals are illustrated.

Figure 2: Connections to open-collector signal (common-anode)

D i

VC

PULS

DIR

ENBL

DC24～50V

M

Motor

Shi ld

PUL+

PUL

DIR+

DIR

ENB+

ENB

GND

VDC

A

A

B

B

●

驱动器与上位控制器的

连接电缆最好选择带屏

蔽，屏蔽层连接标准地

或上位控制器接地端。

●

根据驱动器输出电流设置

选择电源线和电机动力

线的直径，一般不要小于

1mm²线经。

Controller