Smooth, Quiet Stepper Motor Operation

The RoadRunner SoftStep R213S microstepping motor drive from Testra (Tempe, AZ) provides smooth, quiet stepper motor operation. The intelligent on-board processor treats the input steps as small vector moves and smoothly chains them together with 250 or 256 micro-steps per regular motor step with controlled accelerations. Dual chopper stabilized current comparators along with auto-calibration gets rid of communication discontinuities and maintains a near perfect sine wave drive, further reducing motor noise while increasing accuracy and stability. Additional features include: 

• Jumpers installed with a divisor setting of 10 to make them Gecko drive compatible — can be reconfigured by the user as needed.
• Micro-steps in either 250 or 256 increments per step for DS (double step) settings, 1 (full step), 2 (half step), 4, 8, 16, 32, 64, 128, and 256.
• A 2.5” x 2.5” x 0.825” footprint,
• Input power of 20 VDC to 80 VDC.
• Current drive of 1 to 7 Amp.
• Resistor programmable current.
• Opto-isolated inputs.
• Step, direction, disable input (not isolated), and step frequency to 5 Mhz.
• Optional custom waveforms to match individual motor characteristics; CW, CCW input; user programmable waveform; step on+ or – transition; custom current reduction, 3.3 V input drive and 50 Khz chop frequency.

For more information, visit www.testra.com.