Stepper Drives



  • 7A, 80VDC 10-microstep drive
  • Optoisolated step and direction inputs
  • Mid-band resonance damping
  • Silent 20kHz PWM switching
  • No low-speed vibration

G203V
  • 7A 80VDC 10-Microstep Drive
  • Mid-band resonance damping
  • Short-circuit protection
  • Reversed-polarity protection
  • Over-temperature protection
  • Over-voltage protection
  • Optoisolated STEP, DIRECTION and DISABLE inputs
  • Optoisolator COMMON is ground
  • 2.5V, 3.3V and 5V logic compatible inputs
  • Recirculate mode while motor is stopped
  • 350 kHz maximum Step pulse frequency
  • Top settable adjust trimpot
  • Power and error LED indicators
  • No user settable jumpers inside
  • Internal socketed fuse
  • Power-on reset
  • 20 kHz switching frequency
  • Same size and terminal pin-out as the G201

  • The G203V is available in a G203V-Vacuum version as well. This changes the auto current standby to 0% as opposed to 70%, allowing it to operate in a high vacuum environment with minimal heating problems.

  • The G203V is also available in a G203V-CW/CCW version. This means that rather than taking a step and direction input it takes a CW and CCW input on the step and direction terminals. This is only necessary if your machine outputs CW/CCW signals as opposed to step and direction.

  • If you would like either of these options, please specify in the comments section of your order. Unless noted, all G203Vs will be shipped out with the standard firmware.