how can i design stepping motor acceleration profile?

I use bipolar PM stepping motor for small printer,and I need to accelerate motor from stand to 1000PPS speed, But how can I to design first step time and acceleration profile? stepping motor datasheet have PULL-IN and PULL-OUT Torque data.

Reply to
notstop
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snipped-for-privacy@gmail.com schrieb:

Maybe this is a good place to start:

--
Dipl.-Ing. Tilmann Reh
http://www.autometer.de - Elektronik nach Maß.
Reply to
Tilmann Reh

the link have not information about stepping motor acceleration profile.

Reply to
notstop

A trapezoidal profile for velocity, which amounts to a step profile for acceleration, should be sufficient. I say this because if you need more sophisticated control than this, a stepper motor will not do. Most people just drive steppers with pulse-on-off control.

Be aware that steppers have resonance points where the torque goes to almost 0, so when you sweep the frequency through those points, the motor may stall.

Reply to
Bryan Hackney

First look at

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Norm

Reply to
Norm Dresner

thanks a lot.

I use MCU+MTD2003 to drive bipolar steeping motor,2-2 PHASE. My printer motor's working process is stand~acceleration(12 step)~continue speed~deceleration(12 step)~stop. now, I need to know how to calculate first step time of acceleration and ramp.

Reply to
notstop

A typical small motor like this can reach full speed in 4 steps, so if your motors base speed was 200pps and top speed was 1000pps then you could try something like step1=200, step 2= 500, step3=750pps, step4=1000pps reverse the sequence for deacceleration.

Reply to
cbarn24050

step1=200, step 2= 500, step3=750pps, step4=1000pps these are not const acceleration.

Reply to
notstop

Stepper motor torque drops as the speed increases, to get the fastest acceleration you need to take it into account. Those figures are only a starting point since I have no idea what your actuall setup is. A little experimenting will get you a long way.

Reply to
cbarn24050

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