STR3 - Miniature Advanced Microstep Drive

Designed for OEMs

The STR3 miniature stepper drive is great for OEM applications requiring basic step & direction control of a 2-phase step motor. The drive accepts a range of supply voltages, from 12 to 48 volts DC, and is ideal for use with motor frame sizes NEMA 8 to NEMA 24. Recommended motors for use with this drive are listed below.

• Step & Direction or CW/CCW Pulse control
• Automatic idle current reduction
• Built-in self test move profile
• DIP switch setup – no software required

Compact Size for Mounting Anywhere

The STR3 is ultra-compact, meaning it can be mounted just about anywhere on the machine. Next to the motor, directly on the machine frame, tucked behind some other components, or located in a control panel with other devices, the STR3 is right at home.

• Compact size 2.38 × 1.77 × 1.10 inches
• Pluggable connectors for motor, supply voltage and I/O

Small but Powerful

The STR3 drive features advanced microstepping performance and sophisticated current control with anti-resonance. Each STR3 drive can microstep up to 20,000 steps/rev with a 1.8° step motor (1/100 step), and can even microstep the step motor when the command pulses are low resolution. This feature is called Microstep Emulation. Anti-resonance electronically damps motor and system resonances, which improves motor smoothness and torque over a wide speed range.

• Current range 0.3A to 3 A/phase
• Electronic damping (anti-resonance)
• Microstepping & Microstep Emulation
• Selectable digital input filteravailable