Help please !!! Servo configuration with stepconf.

ishman wrote:

I am running it with electronic gearing disabled.

I think that turning it on is the only practical way to get more speed.

Work out what physical distance one encoder count is, and compare that to your desired machine accuracy, and adjust the electronic gearing to suit.

On a very simple level, your 2500PPR encoder servo is acting like a 2500 step/rev stepper motor, and 200 steps/rev is usual. 4:1 electronic gearing would give you a lot more speed and probably still adequate resolution.

Thanks ! it's basic and useful knowledge.

So then I should put 10000 in motor step per revolution at axis configuration window.

But should I put the driver micro-stepping ratio in wizard when I use drives electronic gear ?

Most annoying queries for me is at "Basic Machine Configuration" page where it's asking "step time" , " step space" , "direction hold" and " direction setup". I don't know how to calculate these numbers.

According to your manual the Maximum Input Pulse Frequency is 500KHz. I'm not good with KHz and I assume that is minimum of both the on and off time of a step.

John

BigJohnT wrote:

According to your manual the Maximum Input Pulse Frequency is 500KHz. I'm not good with KHz and I assume that is minimum of both the on and off time of a step.

It means a billion divide by 500k = 2000 is it a correct number for step time ? I hope so.

Yes ! I have confirmed. It's total 2 microseconds (2000ns) for an entire pulse frequency. We just have to divide in two for step time and step space. It means 1000 for "step time" and 1000 for "step space" THANKS JOHN !

Can anyone explain about what is actually "Direction Hold" and "Direction Setup" ?

ishman wrote:

Can anyone explain about what is actually "Direction Hold" and "Direction Setup" ?

Probably not all that relevant with that drive. But a you always stop before changing direction, it doesn't matter too much. 20,000 ought to be safe.