Microstep Drive for step &
Direction Applications
Great for OEM applications requiring basic step &
direction control of a 2-phase step motor
- Step & direction or CW/CCW pulse control
- High performance
- Anti-resonance
- Microstepping
- Mictostep emulation
- Simple setup
- Matched step motors available
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 x 1.77 x 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 filter
Specifications:
| Model Number: | STR3 |
| Supply Voltage: | 12-48 VDC |
| Control Modes: | Step & Direction, CW/CCW Pulse |
| Output Current: | 0.3-3.0 A/phase, peak-of-sine |
| Encoder Feedback: | No |
| Step Resolution: | Full, Half, Microstepping, Microstep Emulation |
| Idle Current Reduction: | 50% or 90% |
| Setup Method: | Dip Switches |
| Digital Inputs: | 3 differential digital inputs (STEP+, STEP-, DIR+, DIR-, EN+, EN-) |
| Dimensions: | 2.38 x 1.77 x 1.10 inches |
| Operating Temperature Range: | 0 to 85 °C |
| Ambient Temperature Range: | 0 to 50 °C |
| Ambient Humidity: | 90% max, non-condensing |
| Status LEDs: | 1 red, 1 green |
| Circuit Protection: | Short circuit, over-voltage, under-voltage, over-temp |
Recommended Motors:
| NEMA 8 | NEMA 11 | NEMA 17 | NEMA 23 | NEMA 24 |
| HT08-020 | HT11-012 | HT17-275 | HT23-595 | HT24-100 |
| HT08-021 | HT11-013 | HT23-598 | ||
| HT23-601 |
Dimensions:
I/O Connections:
Product Page:
Click here to view the STR3 product page.
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