Stepper Motor Drivers
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2 Phase Unipolar Stepper Motor Drivers
2 Phase Bipolar Stepper Motor Drivers
3 Phase Stepper Motor Drivers
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How to select the right motor driver & much more... Motor driver applications
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 2 Phase Unipolar Stepper Motor Drivers
 Check to see which best fit your needs. If you have any questions, please call for assistance at 1-800-790-7837 or e-mail sales@netmotion.com
Check below if you know the model(s) you are looking for:
2 Phase Unipolar Stepper Motor Drivers
Model Stepping
RD-122 Full Step
RD-022 Full & Half Step
RD-022N Full & Half Step
RD-323MS Microstep
RD-023MS Microstep
Sanyo-Denki Sanyo-Denki Drivers
 
RD-122 Driver with Built-in Oscillator
Download Step Motor Driver Manuals 
Specifications Wiring Diagram Timing Chart Motor Wiring
     Features:
  • Ultra Compact
  • Built-in Oscillator
  • Simple On/Off Speed Control
  • Rugged
RD-122 Specifications
Supply Voltage:   Single 18-40 VDC
Supply Current:   2.4 times rated coil current per phase
Motor Current:   0.3-1.3A/ Phase
Excitation Method:   Full step (2P)
Drive Method:   Unipolar, constant current chopper method
Auto Current Limiting:   1/2 of full current when motor is stationary
Protective Circuitry:   low voltage and motor miswiring
Outside Dimensions:   1.1"H x 4.1"L x 2.2"D
    (27.5H x 105W x56D mm)
Weight:   250g (8.8 oz.)
Oscillating Frequency:   30pps - 7kpps
Speed Selection:   High/Low
Accel., Decel:   200-2000ms by pot adjustment
Specifications Wiring Diagram Timing Chart Motor Wiring
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RD-022/ RD-022N Driver
Download Step Motor Driver Manuals 
Specifications Wiring Diagram Motor Wiring
Features:
  • Ultra Compact
  • Simple On/Off Speed Control
  • Rugged
RD-022/ RD-022N Specifications
Supply Voltage:   Single 18-40 VDC
Supply Current:   2.4 times rated coil current per phase
Motor Current:   0.3-1.3A/ Phase
Excitation Method:   Full step (2P) or Half step (1-2P)
Drive Method:   Unipolar, constant current chopper method
Auto Current Limiting:   1/2 of full current when motor is stationary
Protective Circuitry:   low voltage and motor miswiring
Outside Dimensions:   1.1"H x 4.1"L x 2.2"D
  (27.5H x 105W x56D mm)
RD-022 Pulse Input::   CW/CCW with optocoupler
RD-022N Pulse & Dir. Input::   CW/CCW, CLOCK with optocoupler
Specifications Wiring Diagram Motor Wiring
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RD-323MS
Download Step Motor Driver Manuals 
Specifications  Wiring Diagram

Features:

  • Selectable Microstep (50, 64, or 80)
  • High Resolution
  • Lower Vibration
  • Selectable clockout for counters
  • Variable speed control via joystick
  • Adjustable idle current
    RD-323MS is a state-of-the-art, high resolution step motor driver featuring selectable microstep (50, 64, or 80 microsteps/step). The unique feature of this driver is its user-selectable clockout for 1~80 microsteps/step. The pulse output to the motor is always in microstep pulses, irrespective of the clockout. This feature makes it an excellent stepmotor driver for use with Programmable Logic Controllers (PLCs) or other controllers with inexpensive high speed counters.
  
The driver accepts inputs for start, direction and speed to activate the unit's internal voltage-controlled oscillator (VCO). This feature is very useful for building simple systems using a joystick or any controller with parallel I/Os.
  
The unit is equipped with high-precision, current regulation circuitry that can be adjusted between 0.3~1.5 or 0.3~3A/ph to provide better current control. Idle current is adjustable to reduce motor and driver heat generation.
RD-323MS Specifications
Supply Voltage:   Single 18-40 VDC (including ripple)
Supply Current:   Approx. 2 times rated coil current per phase
Motor Current:   0.3-3.0 A/ Phase
Microstep Resolution:   50, 64, or 80 (µstep/step)
Clockout Resolution:   1~80 microstep/step
Excitation Method:   Microstep
Drive Method:   Unipolar, constant current chopper method
Auto Current Limiting:   0 ~ 80% of rated motor current
Protective Circuitry:   Motor miswiring, overheating, and low voltage protection
Outside Dimensions:   1.1"H x 2.2"W x 4.1"L
    (26H x 56W x 105Lmm)
Weight:   250g (8.8 oz.)
Oscillation Frequency:   600 kpps
Accel., Decel. Time:   20~3000ms by pot setting
Position Repeatability:   ± 1 microstep with no load in one direction
Accuracy (Electrical)::   ± 2% (± 1 microstep under 50 µstep)
Specifications  Wiring Diagram
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RD-023MS
Download Step Motor Driver Manuals 
Specifications  Wiring Diagram
    Features:
  • Selectable microstep (22 selections)
  • High resolution
  • Lower vibration
  • Adjustable idle current

    RD-023MS is a state-of-the-art, high resolution, step motor driver featuring selectable microstepping. The user selects from 1~400 microsteps per step using dip switches (22 selections).
  
The unit accepts pulse and direction inputs or two clock inputs, one for each direction. It is equipped with opto-isolated inputs and outputs to provide maximum noise immunity.
   It is also equipped with high-precision, current-regulation circuitry that can be adjusted to 0.3~1.5 or to 0.3~3 A/ph to provide better current control. Idle current is adjustable as well to reduce motor and driver heat generation.
  
Motor rotation can be changed from microstep to full step or vice versa on the fly.

RD-023MS Specifications
Supply Voltage:   Single 18-40 VDC (including ripple)
Supply Current:   Approx. 2 times rated coil current per phase
Motor Current:   0.3-3.0 A/ Phase
Microstep Resolution:   Up to 400 microsteps/step (µstep/step)
Selections: 1, 2, 4, 8, 16, 32, 64, 2.5, 5, 10, 20, 40, 80, 160, 320, 6.25, 12.5, 25, 20, 100, 200, 400
Excitation Method:   Full step or microstep
Drive Method:   Unipolar, constant current chopper method
Auto Current Limiting:   0 ~ 80% of rated motor current
Protective Circuitry:   Motor miswiring, overheating, and low voltage protection
Outside Dimensions:   1.1"H x 2.2"W x 4.1"L
    (26H x 56W x 105Lmm)
Weight:   250g (8.8 oz.)
Oscillation Frequency:   500 kpps
Position Repeatability:   ± 1 microstep with no load in one direction
Accuracy (Electrical)::   ± 2% (± 1 microstep under 50 µstep)
Specifications  Wiring Diagram
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Download Step Motor Driver Manuals 
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For further information, please contact NetMotion, Inc. at 1.800.790.7837 or 510.578.2811 or e-mail sales@netmotion.com
Copyright © 2003 NetMotion, Inc.