OS42 Microstep Driver

Overview

The OS42 Microstep Driver is a compact digital driver designed for two-phase stepper motor applications where smooth operation, low noise and flexible motion control are required.

The driver uses digital control technology and built-in microstepping functions to improve motor running smoothness across low-, medium- and high-speed operating conditions. The output current and microstepping settings can be adjusted according to the motor and application requirements.

With pulse, direction and enable interfaces, the OS42 can be integrated with external motion controllers and used with different wiring configurations for compatible two-phase stepper motors.

Key Features

• Digital DSP-based control for stable motor operation
• Built-in microstepping for smoother motion
• Adjustable output current according to motor requirements
• Automatic half-current function
• Optically isolated differential control signal inputs
• Supports 4-, 6- and 8-wire two-phase stepper motors
• Pulse response frequency up to 200 kHz
• Multiple microstepping settings up to 25,600 pulses/rev
• Protection functions including overcurrent and overvoltage protection
• Compact design for integration into automation equipment and instruments

Applications

The OS42 is suitable for various small- and medium-sized automation equipment and instruments where smooth, low-noise stepper motor operation is required.

Typical applications include:

• CNC equipment
• Engraving machines
• Wire stripping machines
• Marking machines
• Cutting equipment
• Laser equipment
• Plotters
• Automatic assembly equipment
• Other compact motion-control systems

Technical Specifications

Parameter	Specification
Product Type	Digital Microstep Driver
Motor Type	Two-Phase Stepper Motor
Output Current	0.3–2.2 A
Power Supply	DC 18–36 V
Pulse Frequency	Up to 200 kHz
Microstepping	200–25,600 pulses/rev
Motor Connection	4-, 6- and 8-wire
Control Signals	Pulse, Direction, Enable
Current Setting	Adjustable
Half-Current Function	Automatic
Protection	Overcurrent, Overvoltage
Control Method	Digital DSP Control

Microstepping & Current Settings

OS42 Microstep Driver provides multiple current and microstepping settings through the onboard switches, allowing the driver to be configured according to the connected stepper motor.

Current Setting

The documented OS42 configuration provides selectable current settings from 0.3 A to 2.2 A.

Microstepping Setting

The driver provides multiple microstepping settings ranging from 200 to 25,600 pulses/rev, allowing users to balance positioning resolution and motor operating characteristics.

For the exact switch combinations, refer to the configuration table of the selected OS42 driver.

Control Signal & Wiring

The OS42 Microstep Driver provides pulse, direction and enable interfaces for connection with external motion controllers. It also supports different wiring configurations for compatible two-phase stepper motors.

Signal	Function
PUL+ / PUL−	Pulse signal
DIR+ / DIR−	Direction signal
ENA+ / ENA−	Enable signal
V+ / V−	DC power supply
A+ / A−	Motor phase A
B+ / B−	Motor phase B

Motor Wiring Configurations

The documented wiring diagram supports:

• 4-wire connection
• 6-wire connection
• 8-wire low-speed connection
• 8-wire high-speed connection

Installation Dimensions

For mechanical integration, refer to the OS42 installation drawing to confirm the mounting dimensions, connector positions and overall driver dimensions before installation.

• Overall width: approximately 93.0 mm
• Overall height: approximately 56.0 mm
• Overall depth: approximately 30.8 mm
• Mounting hole diameter: Ø4.2 mm

Why Choose the OS42 Microstep Driver?

• Smooth Microstepping Operation

  Built-in microstepping technology helps improve motor smoothness and reduce vibration during operation.

• Flexible Motor Configuration

  Support for 4-, 6- and 8-wire two-phase stepper motors provides flexibility when selecting compatible motors.

• Adjustable Motion Parameters

  Multiple current and microstepping settings allow the driver to be configured for different motor and motion-control requirements.

• Compact Integration

  The compact driver format is suitable for integration into automation equipment, instruments and other space-conscious control systems.

FAQ

1. What type of motor can the OS42 drive?

A: The OS42 Microstep Driver is designed for compatible two-phase stepper motors and supports 4-, 6- and 8-wire motor configurations.

2. What microstepping settings are available?

A: The documented OS42 configuration provides settings from 200 to 25,600 pulses per revolution.

3. Does the OS42 support different motor wiring configurations?

A: Yes. The supplied wiring information shows 4-wire, 6-wire, 8-wire low-speed and 8-wire high-speed connection configurations.

4. What applications is the OS42 suitable for?

A: It is intended for small- and medium-sized automation equipment and instruments, including CNC equipment, engraving machines, marking machines, cutting equipment, plotters and automatic assembly equipment.