Hi Gene,
have a look at the hy_vfd module.
It uses the huanyang-version of modbus to communicate to the HY-VFDs.
http://linuxcnc.org/docs/html/man/man1/hy_vfd.1.html
Greetings,
Benjamin
On 23.12.20 08:11, Gene Heskett wrote:
> Greetings all;
>
> I have discovered that this vfd has an rs485 port
Greetings all;
I have discovered that this vfd has an rs485 port, and I have some rs485
bidirectional drivers, I bought a 10 pack of them for use as
differential output encoder translators to ttl signals, which they are
excellent for if programmed to only be receivers. So I have the
hardware
Yes, it is true. The Haas TM-1 mill we used to have used a
stovetop element in a cage on top of the control. There may
have been a fan on the cage, but I don't recall. We were
able to replace the TM-1 with a Mori NVX which I like better :-).
-- Ralph
Fro
On 12/22/2020 06:30 PM, Matthew Herd wrote:
In my research on resistor sizing, I heard reports that Haas uses stove
elements for their braking resistors. On factory machines, no less. Of course
that’s second hand, so I can’t say it’s true.
Yes, absolutely. Our Haas at work has a stovetop e
On Tuesday 22 December 2020 18:43:08 Ralph Stirling wrote:
> Yes, the DCM terminal is the digital common for FWD and REV.
Good, that how I hooked it up but haven't powered it yet. I generally rig
my stuff with a couple 40 amp SSR's to control motor power from the F2
key. But that cable is not h
In my research on resistor sizing, I heard reports that Haas uses stove
elements for their braking resistors. On factory machines, no less. Of course
that’s second hand, so I can’t say it’s true.
> On Dec 22, 2020, at 7:15 PM, Chris Albertson
> wrote:
>
> I knew some one who found he could
For my 1.5kw Hitachi WJ200 drive, the manual recommends 50 ohm. However,
they want you to buy their resistor so they don't spec a recommended
wattage. I ended up using a 400W wirewound resistor from Ohmite, part
number ARG400C50RJ. It didn't even get warm when I was running my rigid
tapping test
The brake resister depends on what duty cycle you run the motor at. It
you only run forward at a constant speed you will never use the resister.
But if you continuously run the motor to full forward then full backward
speed for hours you will be heating the resister with about 50% of the
motor'
Is this a Chinese drive? I have seen a lot of strange nomenclature on
Chinese drives.
M in a German sense, oftentimes denotes "mana" which is a common. I
have seen M or "mana" used to denote a low voltage common. So does the
M in DCM, stand for "mana"? Perhaps? Perhaps the drive was desig
Yes, the DCM terminal is the digital common for FWD and REV.
That works fine on my system (that I'm working on as I write).
What did not work for me was the UPF and DRV outputs that
also use the DCM common. Those are supposed to be open
collector outputs that can be used for spindle-at-speed, spin
Greetings all;
Swapping a 110 volt vfd, for a 250 volt vfd, one of the terminals is
labeled differently, the common point of the fwd/rev/spd1-2-3-4-5
terminals on the 110 volter is labeled XGND
But the common point terminal on the higher voltage unit is labeled DCM
but the diagram of how to ho
If the drives are still running, then I don't think you will have any
issues getting them to work with LinuxCNC.
There are still companies out there repairing those drives but some of
the parts are no longer available. I doubt you will need to alter
anything in the drives themselves to get it
https://youtu.be/esUb7Zy5Oio
It's about how the fancy hybrid motor in the Tesla Model 3 works, but
it has to explain induction, PM and reluctance motors to do so, so is
a pretty well-produced motor primer.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the es
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