ramping stepper motor
ramping stepper motor
(OP)
hi, im driving some stepper motors using the l297 and l298. and i want to know if allowable to accelerate the motor using a ramp dc increase in the v ref pin in the l297.
this pin regulates the current delivered to motor windings through internal chopper circuit.
instead acelerating the motor using the clock may i control it through the current control?
should i use both?
regards
killabyte
this pin regulates the current delivered to motor windings through internal chopper circuit.
instead acelerating the motor using the clock may i control it through the current control?
should i use both?
regards
killabyte





RE: ramping stepper motor
Gunnar Englund
www.gke.org
RE: ramping stepper motor
thanks
killa
RE: ramping stepper motor
im ramping from 0 to 1000 pulses per second, no load applied.
when near to 300 pps the motor got stalled, i guess the ramp is not so linear
i started using an initial delay of 200ms and after that the counter is increased in 500 us each time.
regards
killa
RE: ramping stepper motor
keep up with the pulses, it stalls.
RE: ramping stepper motor
regards
killa
RE: ramping stepper motor
Mike Halloran
Pembroke Pines, FL, USA