On Sat, 23 Feb 2019, Gene Heskett wrote:
Date: Sat, 23 Feb 2019 08:35:08 -0500
From: Gene Heskett <ghesk...@shentel.net>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] New discovery for 5i25-7i76 users.
Greetings PCW;
According to what I am seeing with a halmeter, the 7i76 completely
replaces any need for a pwmgen to be included in the hm2 config line of
the hal file, thereby simplifying ones hal file by quite a few lines.
However, with a vfd to control, it appears there are 3 parameters to be
added and serviced with setp's:
hm2_5i25.0.7i76.0.0.spinout-maxlim
hm2_5i25.0.7i76.0.0.spinout-minlim
hm2_5i25.0.7i76.0.0.spinout-scalemax
However this does not disable the spindle if the requested speed is below
minlim. Shouldn't it?
No, it just bounds the input range
For a typical use you would set
hm2_5i25.0.7i76.0.0.spinout-maxlim to maximum spindle RPM
hm2_5i25.0.7i76.0.0.spinout-minlim to 0 or some minimum spindle RPM
hm2_5i25.0.7i76.0.0.spinout-scalemax to maximum spindle RPM
I'd appreciate some guidance in setting those intelligently.
At first glance it looks like scalemax and maxlim should be the same and
equal to the spindles top speed of 24000 revs, and I'm guessing that
minlim should be around 2400 in order to protect the spindle and vfd
from an over-exuberance of low speed torque boosting over drive. Then
one could S command speeds directly in rpms.
How far off am I?
That sounds right
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
