Overview
This document presents technical specifications and features of various step motor controllers produced by Smart Motor Devices, designed for controlling stepper motors in industrial and automation applications. The controllers support standalone operation or can be integrated as slaves with external master devices.

1. Product Descriptions and Specifications

1.1 SMSD-4.2RS Step Motor Controller

• Max current per phase: 0.4 – 4.2 A
• Supply voltage: 12 – 48 VDC
• Microstepping options: 1/1, 1/2, 1/4, 1/16
• Communication interfaces: RS-232, RS-485
• External discrete signals:
  • IN1 and IN2: programmable inputs
  • START/STOP: motor control input
  • REVERSE: input to change rotation direction
  • START ZERO POSITIONING and HOME: inputs for homing procedures
  • RELAY: programmable output

1.2 SMSD-4.2LAN Step Motor Controller

• Max current per phase: 0.1 – 4.2 A
• Supply voltage: 24 – 48 VDC
• Microstepping options: 1/1, 1/2, 1/4, 1/8, 1/16 (some motors support 1/32, 1/64, 1/128)
• Communication interfaces: LAN-based (details not fully specified)
• Inputs for external discrete signals:
  • SET_ZERO and GOTO ZERO: for zero positioning commands

1.3 SMSD-8.0LAN Step Motor Controller

• Designed for medium size stepper motors
• Max current per phase: 1.0 – 8.0 A
• Supply voltage: 24 – 48 VDC
• Microstepping options: 1/1, 1/2, 1/4, 1/8, 1/16 (some motors support 1/32, 1/64, 1/128)
• Communication interfaces: LAN-based
• Supports standalone operation or slave mode with external master

1.4 SMSD-4.2CAN Step Motor Controller

• Max current per phase: 1.0 – 4.2 A
• Supply voltage: 12 – 48 VDC
• Microstepping options: 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128
• Communication interfaces: CAN, USB
• Supports CANopen velocity control protocol

2. Functional Features

• Controllers can operate autonomously based on pre-programmed algorithms or be controlled externally via master devices.
• Multiple microstepping resolutions allow fine control of motor positioning and smooth operation.
• Discrete inputs and outputs enable integration with external sensors and control signals, including start/stop, direction reversal, homing, and zero positioning.
• Communication interfaces vary by model, including RS-232, RS-485, LAN, CAN, and USB, supporting flexible integration into different control systems.

3. Application and Integration

• Suitable for a range of stepper motors from small to medium size, with current ratings adapted accordingly.
• Designed for industrial automation, robotics, and electromechanical systems requiring precise motor control.
• Programmable inputs and outputs facilitate customization for specific application needs.

4. Contact Information

Manufacturer: Smart Motor Devices
Address: Tallinn Science Park Tehnopol, Akadeemia tee 21/6, 12618, Tallinn, Estonia
Phone: +372 6559914
E-mail: [email protected]

Critical Information Summary

• Voltage range: 12 – 48 VDC (varies by model)
• Current per phase: 0.1 – 8.0 A depending on controller
• Microstepping: from full step (1/1) up to 1/128 for some models
• Communication: RS-232, RS-485, LAN, CAN, USB
• Programmable discrete inputs/outputs for flexible control
• Supports standalone and slave operation modes

This document provides essential technical parameters and functional descriptions to assist in selecting and integrating Smart Motor Devices step motor controllers into electromechanical systems.