Advanced control features

The design of MSE542 is based on many years experience in stepper motor drive technology and incorporates the

following features to provide flexible control:

· High efficiency chopped constant current power stage provides increased performance and

reduced current consumption

· Selectable full or half step phase logic control

· Adjustable current settings from 0.5A to 2 Amps per phase

· Choice of automatic or externally selectable reduced current for stationary motor conditions to reduce power

consumption and motor heating.

· Over-temperature monitor with selectable automatic drive shutdown.

· Opto-isolated ‘drive healthy’ status output

· Opto-isolated control inputs.

· Control from external clock and direction signals

· Alternative control using on-board voltage controlled oscillator featuring:

externally gated adjustable base and high speed settings

adjustable acceleration/deceleration ramping.

choice of oscillator gating procedures to suit alternative control philosophies.

automatic ramping and controlled motor reversal eliminates motor stalling when

high speed direction changes are required.