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  • Supply voltage up to +50VDC, output current up to 4.2A peak

  • Pulse frequency up to 300KHz

  • TTL compatible and optically isolated input

  • Automatic idle-current reduction

  • Self-adjustment technology and Pure-Sinosoidal current control technology

  • 15 selectable resolutions, up to 25,600 steps/rev

  • Suitable for 2-phase and 4-phase stepper motors

  • PUL/DIR & CW/CCW mode optional

  • Short-voltage, over-voltage, over-current and over temperature protection


The MSD542 is suitable for a wide range of stepping motors of NEMA 17 and 34 and has been specifically designed for various kinds of machines such as X-Y tables, labeling machines, laser cutters, engraving machines and pick-place devices. It is particularly useful for the applications where low vibration, high speed and high precision are desired.
They are suitable for driving 2-phase step motors (maximum current ratings of 4.2). By using an advanced bipolar constant-current chopping technique, and a maximum input voltage of 50 VDC, they can produce more speed and power from the motor.



Parameters                                                      MSD542


Output Current                                            0.21 -  1.5   Amps

Supply Voltage                                            +15  -  +40  VDC

Logic Signal                                                    7  -  16    mA

Pulse Input Frequency                                    0  -  300  KHz

Isolation Resistance                                                500 MΩ

Cooling                                           Natural cooling or Forced Cooling

Operating Environment                 Avoid dust, oil fog and corrosive gases

Ambient Temperature                                     0 ~ 50  °C

Humidity                                                         40 - 90 %RH

Operational Temperature                                      70 C

Vibration                                                                 5.9m/s2 Max

Storage Temperature                                   -20 ~ 65 °C

Weight Approx                                                         150g (5.3oz)

Associated Products

LAN-Motion Multi Axis Control

All Amtech branded products are designed and manufactured in Britain.

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