On Sat, 16 May 2020, Curtis Dutton wrote:
Date: Sat, 16 May 2020 12:53:29 -0400
From: Curtis Dutton <curtd...@gmail.com>
Reply-To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Subject: [Emc-users] Trouble with 8i20 settings.
I believe that I'm having trouble understanding how to set an 8i20 up
properly.
It is connected to a 2.5KW 200V AC servo which can take a maximum current
of 44.5 amps. Maximum speed of 5000RPM.
It is running a lathe spindle. I am able to get it to spin up but it seems
a bit sluggish. I also would expect, when setting the current value to
maximum output that I would see current-lim go true but it doesn't.
NVMAXCURRENT = 3000
current-maxlim = 30
current-minlim = -30
current-scalemax = 1
Those are not flags but rather settings that limit the maximum current
If scalemax is set to 1 that means that full current would occur at
a setting of +-1. Is the PID output +- 1 when accelerating?
8i20 voltage says 350 ~ 351
voltage drops to 340 while accelerating. I have 10 GA wires from the power
supply to the 8i20 which are about 8" long. The power supply is an ELMO
Tam-20/230 with a peak of 40A power output.
I've tried to look for some documentation explaining exactly how those
values work, but I can't seem to find it.
Thanks,
Curt
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