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MA860H Stepper Motor Driver 2.4-7.2A Max 80VAC or 110VDC for Nema 17-Nema 42 Stepper Motor

MA860H Stepper Motor Driver 2.4-7.2A Max 80VAC or 110VDC for Nema 17-Nema 42 Stepper Motor
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Our Price:$66.09
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Qty.Range(unit) Price(unit) Discount
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10 $61.46 7%
50 $59.48 10%
100 $57.50 13%
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 It can be used to drive 2-phase or 4-phase motors(from Nema 17-Nema 42 size)with less noise and heat. It works with 36-110VDC/24-80VAC voltage and can provide max 7.2A peak current. You can set the DIP switches to get the current and microsteps you need.


Key Features

  • Supply voltage up to 80VAC or +110VDC
  • Output current up to 7.2A
  • Self-adjustment technology
  • Pure-sinusoidal current control technology
  • Pulse input frequency up to 300 KHz
  • TTL compatible and optically isolated input
  • Automatic idle-current reduction
  • 16 selectable resolutions in decimal and binary, up to 51,200 steps/rev
  • Suitable for 2-phase and 4-phase motors
  • Short-voltage, over-voltage, over-current and short-cicuit protection

Electrical Specifications:

  • Output Peak Current: 2.6~7.2A (5.1 RMS)
  • Input Voltage: +24~80VAC or +36~110VDC
  • Logic Signal Current: 7~16mA (Typical 10mA)
  • Pulse Input Frequency: 0~300kHz
  • Isolation Resistance: 500MΩ

Operating Environment and other Specifications(Tj = 25℃/77℉):

  • Cooling: Natural Cooling or Forced cooling
  • Environment: Avoid dust, oil fog and corrosive gases
  • Ambient Temperature: 0℃ - 50℃
  • Humidity: 40%RH-90%RH
  • Operating Temperature:70℃ MA
  • Vibration: 5.9m/s2 Max
  • Storage Temperature:70℃ MAX
  • Weight: Approx.650g (22.93oz)


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Stepper Driver Specification
Driving Voltage(V) 36 - 110VDC / 24 - 80VAC
Output Current(A) 2.6 - 7.2
Microstep(Steps/rev.) 400 - 51200
Max. Pulse Input(kHZ) 300
Pulse Width(μs) 1.5
Physical Specification
Weight(g) 650

DTBarber – 04 Jul 2015

I have been using one of these drivers with a 5 amp rated NEMA 34 stepper motor for about 6 months and have had excellent results. The driver can be used with either AC or DC power sources (very nice), has plenty of passive heat sinking, and has a fan for additional cooling. Setting micro-stepping and current is easy. Just a matter of setting the dip-switches to match the application. The review that states "Although it's rated for 7.2 amps this will only go up to about 2.6 amps before it stalls the motor" suggests that the individual does not understand how to setup the driver and use a stepper motor. When setting up any stepper driver, the drive current is set to match the current requirements of the specific stepper motor being driven. Once set, the drive current is not varied. To move a stepper motor, step and direction signals are sent to the driver from a computer or microcontroller.

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