stepper_drives_and_stepper_drive_controllers_-_ofs350_zm

OFS350 OPEN FRAME MINISTEPPER DRIVE

OFS350 open-frame ministepper drives offer a 3.5Apk output and 12,800 step/rev resolution. It is available with either a step/direction control interface (OFS350-DRI) or an on-board oscillator card (OFS350-OSC) permitting local control of the drive

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Product Description

OFS350 open-frame ministepper drives offer a 3.5Apk output and 12,800 step/rev resolution. It is available with either a step/direction control interface (OFS350-DRI) or an on-board oscillator card (OFS350-OSC) permitting local control of the drive

The OFS350 series of open-frame ministepping drives offer a 3.5A output with a resolution of 400-12,800 steps/rev, a step phase sequencer with MOSFET three-state switching amplifiers and opto-isolated circuits. The amplifier regulates motor current by chopping at a constant, inaudible frequency. Phase current is selected from 32 levels by a DIP switch, which also controls the microstepping resolution. The OFS350-DRI ministepper drive accepts industry standard step and direction command signals from an external control source. The OFS350-OSC drive additionally adds an on-board clock source and includes five optically isolated inputs, external speed control, tach output, and internal pots for accel/decel rate along with high- and low-speed range selection. Both versions of the drive include a selectable automatic feature to lower the motor current by 50% whenever the motor is left at rest for more than one second. There is also a switch-selectable self test mode that rotates the motor one-half a revolution in each direction at 100 steps per second.

Features:

  • Drive Input Supply : 12…42VDC
  • Output Current : 2.47 Arms / 3.5 Apk
  • Resolution : 400, 1000, 2000 and 12,800 steps/rev
  • Switch selectable idle current reduction, 0 or 50%
  • Optically Isolated 5VDC Inputs for Step, Direction and Enable (OFS350-DRI)
  • Optically Isolated 5–12 VDC Inputs (OFS350-OSC)
  • Enable Input (to turn off current to the motor)
  • Self Test (switch selectable)
  • Screw Terminal Connectors.
  • MOSFET, Dual H-Bridge, Inaudible PWM Amplifier
  • 3 State, Pulse Width Modulated Current Control (switching at 20–30 KHz)
  • Drives 4, 6 or 8 Lead / Size 11, 14, 17, 23 or 34 Step Motors
  • CE compliant

Additional Information

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