Datasheet

TMC429 DATASHEET (v. 1.07 / 2012-AUG-01) 51

15 How to Run a Motor with Start-Stop-Speed in RAMP_MODE

Either the TMC428 or the TMC429 has an integrated automatic start-stop-speed mechanism because

this can easily realized by a simple command sequence. To start and stop with with a speed

V_START_STOP different from zero, one has to do the follwoing:

1. set VMIN := V_START_STOP

2. set RAMP_MODE

3. set X_TARGET to desired target position

4. set V_ACTUAL immedeately with correct sign for V_ACTUAL to +V_MIN resp. V_MIN,

depending on the direction of positioning