JP5 - max output frequency

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cemoa9
Posts: 44
Joined: Mon Jun 01, 2020 11:01 am

JP5 - max output frequency

Post by cemoa9 » Sat Sep 18, 2021 10:49 am

Hello Tom,

Trying to mill the first part with kflop, I found a new issue, I have a spindle controller driven in step/dir, 2500pulses / rotation, but after 2700rpm the spindle would just stop and driver would say no pulse received. I checked with an osciloscope, signal is clear until 2700RPM, but would be just noise from 2800rpm.

Remembered then the pulse length set-up, but if I set it too low (to reach the 8000rpm of the spindle) then the X-Y drives will not work, can it be set-up by channel?

Cordially

Francois

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TomKerekes
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Joined: Mon Dec 04, 2017 1:49 am

Re: JP5 - max output frequency

Post by TomKerekes » Sat Sep 18, 2021 3:23 pm

Hi Francois,

No there is one setting for all Step Generators. Do any of the Drives accept quadrature input mode? Depending on the mode and interface you are using adding a 5V driver to the signal may help.
Regards,

Tom Kerekes
Dynomotion, Inc.

cemoa9
Posts: 44
Joined: Mon Jun 01, 2020 11:01 am

Re: JP5 - max output frequency

Post by cemoa9 » Sat Sep 18, 2021 3:41 pm

Hello Tom,

The spindle drive accepts AB inputs, but I do not really understand what you mean with 5V driver. :oops:

Cordially

Francois

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TomKerekes
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Re: JP5 - max output frequency

Post by TomKerekes » Sat Sep 18, 2021 3:45 pm

Hi Francois,

AB quadrature should work better. There is no pulse width associated with this. Each edge cause a step and the frequency is half what pulses would be. Set the pulse width longer for your other drives.
Regards,

Tom Kerekes
Dynomotion, Inc.

cemoa9
Posts: 44
Joined: Mon Jun 01, 2020 11:01 am

Re: JP5 - max output frequency

Post by cemoa9 » Sun Sep 19, 2021 2:54 pm

Hello Tom,

Works perfectly.

Thx

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