Stepper motor driver STEP/DIR SMD‑4.2DIN ver.3

Voltage

12 – 48 VDC

Max. current per phase

2.7 - 4.2 A

Microstepping

1/1 - 1/256

Control methods

Analog input, STEP/DIR

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The stepper motor driver is designed to control motors with current per phase up to 4.2 A. This model provides 2 control methods: STEP/DIR positioning and analog speed control. The controller provides an excellent motor dynamics and high torque performance. Slim case and mounting the driver on a standard DIN rail makes it easy to place it in a production environment.

Technical data

High voltage level

5 - 12 VDC

Low voltage level

0 - 1 VDC

Input STEP resistance

3 kOhm, no less

Inputs DIR and ENABLE resistance

1 kOhm, no less

Input current of control inputs STEP/START/STOP

1.4 - 4 mA

Input current of control inputs DIR and ENABLE

4 - 12 mA

Speed control signal voltage range

0.1 – 5 V, 0.1 – 10 V

Input speed resistance

15 kOhm, no less

Current of control input SPD

1 mA

High voltage level

5 - 12 VDC

Low voltage level

0 - 1 VDC

Input STEP resistance

3 kOhm, no less

Inputs DIR and ENABLE resistance

1 kOhm, no less

Input current of control inputs STEP/START/STOP

1.4 - 4 mA

Input current of control inputs DIR and ENABLE

4 - 12 mA

Speed control signal voltage range

0.1 – 5 V, 0.1 – 10 V

Input speed resistance

15 kOhm, no less

Current of control input SPD

1 mA

Dimensions of stepper motor driver SMD‑4.2DIN ver.3

Description of stepper motor driver SMD‑4.2DIN ver.3

The high performance stepper motor driver is based on modern hardware components and intended for motors with current per phase up to 4.2 A. This model is controlled via STEP/DIR signals or internal pulse generator with potentiometer or analog voltage speed regulation. Excellent dynamics and high torque at high speeds distinguish it from competitors. Smooth and silent motion can be achieved by using of a microstepping mode. Slim case and mounting the driver on a standard DIN rail makes it easy to place it in a production environment.

SMD‑4.2DIN ver.3 provides the next options for stepper motor control

Pulse position control by external signals
Analog speed control mode:

Voltage signal 0 - 5 VDC;
Voltage signal 0 - 10 VDC;
Built-in potentiometer;
External potentiometer.

Depending on the task, the controller can be used in one of the control modes - pulse position control for implementation of positioning tasks, speed control with an analog signal - for tasks of accurately maintaining and regulating speed.

The pulse position control mode is implemented with standard control signals STEP and DIR. In pulse position control mode, it is possible to invert the enable signal ENABLE.

The analog speed control mode (by external or built-in potentiometer) or with analog voltage signal 0 - 5 VDC or 0 - 10 VDC provides start, stop, change of direction and smooth adjustment of the speed of rotation of the stepper motor without the possibility of precise positioning. The built-in generator is used as the controller that sets the pulses.

The analog speed control mode is used in cases of simple movement (rotation) of a stepper motor or when the use of an external source of pulses STEP is unacceptable or impossible.

Connection of stepper motor driver SMD‑4.2DIN ver.3

Alarm signal FAULT

The FAULT output signal is intended to monitor the state of the driver. In normal condition, the resistance between terminals FA+ and FA- tends to infinity. When an emergency occurs, the resistance outputs FA+ and FA- are closed.

• Signal type - optocoupler output
• Maximum voltage - 48 VDC
• Maximum current - 50 mA