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Servus Uwe,

at the moment i'm dedicated to learning for my exams next month, unfortunately i don't have the time right now, to revisit that topic. Eventually i will test that in august.

Personaly i would guess, the encoder has a resolution of 0.1 degree, so the pos-scale variable is just the maximum value, the encoder can reach.

For the second question, i'm not using the standard CiA402 XML-mapping, but i use the exact same syntax for all variables. I'm not entirely sure, why i went with that solution back in the day (i suspect, because i wanted to map the inputs/outputs of the drive too, which is not possible with the basic_402 defintion) and i do also not know, whether the basic_402 part of the XML file worked. As i said, eventually i will revisit that topic in late july or august.

Best Regards
Patrick

It just gets weirder. When I tried to attach the malefactor, it claimed it was 2.1GB. When I do an ls -l, it is 24168 bytes.

More curiously, this is not really at startup. It is only when I open a file in Auto.

Manual and MDI commands work fine. Weirder and weirder. It seems specific to one file. It is 2.1 GB. This is probably an error in the program that generates so this failure may only be a curiosity.

Hi. I see you have the 2.9.3 version. How do you get to work, G71. I have error bad character. Thanks

Hi, Sternfox.

Did you manage to create a working hal and ini file ?

It would be possible for you to attach it ?

forum.linuxcnc.org/9-installing-linuxcnc/28861-startup-error shows this as an error in the HAL section of the ini file, but the instructions there from 2016 do not match my ini file.

www.suse.com/security/cve/CVE-2023-52993.html says this is a Linux kernel vunerability. Might the latest version of linuxCNC fix this?

dave111 wrote:

It was just some guy selling it. With a new Facebook profile, once I saw the images were identical to the ones here it was a red flag. He says he has people interested today. He hasn't asked for a deposit so might be legit after all.

Salesmen always say someone else is interested.

GRUB_CMDLINE_LINUXCNC_DEFAULT="lapic quiet rootdelay=5"

I do not see "nosplash" anywhere in /etc/default/grub.

Also this has worked perfectly on this hardware for years until yesterday,

I think you are measuring the enable pins (1,2) rather than the analog outputs
(3,4)

I use stepper online dm542t and dm556 have over 50 of them in operation on machines running at least 8 hours a day and have never had any issues with them. I have never measured the current to see if they are getting 3 amps but I will say they are stronger than any of the tb6600 boards I've seen.

Hi Tommy,

Thanks for your answer. 

I have disconnected all drives and measured directly on the pins. (Indicated with the red dots on the image)

It doesn't matter what I set hm2_7i94.0.7i77.0.1.analogout0 to, the value stays 0V, or about 0.3V when hm2_7i94.0.7i77.0.1.analogena is enabled.

 

I'm glad you guys know what you're talking about, most days I'm happy if I tie my shoelaces correctly 

Any hoo, I was wondering about shift registers, in that should I use hardware means to clear all outputs? I haven't had a lot to do with them but I understand that the output shift registers can have undefined states at startup and possibly turn on randomly. For the most part probably not an issue but if you are using them for things that shouldn't turn on at startup, tool release, turret clamp, Z Axis brake, spindle gearbox and so on. My friend (Babinda01 on here) has mentioned using a simple resistor/cap combination connected to the shift register clear pin to reset the output registers at power up, which sounds like a good idea instead of burning up a pin from the FPGA.

Also just checking that I can assign ModBus pins for output for a second FPGA and also additional ModBus pins for, well normal Modbus things? My understanding is the ModBus to the second FPGA is just for doing that, and not for adding traditional ModBus devices, so I should design a second "standard" Modbus connection.

Cheers.
Russell.

Looks like if you buy a Tb 6600 you really don’t know what you get.
I had bought another Tb 6600 and tested it.
Stepper motor much noisier with that new one with the same micro stepping. Outside they look the same but the new ones plastic cover. Last week I cut a large sine and one of the steppers stopped moving so. Lots of material waisted.

So I did run the program again with the torch off same happens at the same place. So I added two 80 mm fans to cool the drivers
Now I can run the programs three times in a row and everything runs fine. So tomorrow I will try to cut the sign. I run them on 2.5 amps . The one for the Z axis runs on 1.5 amps. So I can affirm they are probably reliable for up to 1.5 amps so I am looking for a replacement.

I am considering a Chinese Dm556 or a TMC 2160 How much can they handle in reality?

Does anyone on this Forum use them can they handle 3Amps in reality?

Good evening @tommylight, @unknown (Rob) and @rodw,

Thank you for your helps. I have been working on this. And I have something that is working. 

I have since also purchased the MEAN WELL UHP-750-36 PSU au.mouser.com/ProductDetail/MEAN-WELL/UH...pnvY3grMpLJ29HELBwFs, and have it works with this setup, too.
 
Hi @rodw,

Follows your advice, I have bought the JayCar EMI Filter.

I bought six Earth terminals, while I need only three... The gentleman at the store was not able to to work out that the we don't need bus bar connector to join them, since the DIN rail acts as conductor since the Earth block clamps are metal:

Earth: www.altronics.com.au/p/p2415-dinkle-35a-...w-din-rail-terminal/

They also have DIN Rail fuse holder, too.

I have also last week received a 24VDC contactor from Tropac as you advised. It is a 3-phase one, as you have anticipated.

www.tropac.com.au/10-Pole-24VDC-Coil-5.5...Contactor-LS-Metasol
GMD-12M DC24V 5.5kW 3P Mini Contactor with 1NO Auxiliary Contact

And I have this flyback diode www.jaycar.com.au/diode-fr307-1000v-3a-d027-pack-10/p/ZR1052 to use with it.

I have since learned how to wire it, both switching a router (I used a Dremel grinder) and using the NO terminals to turn on an LED with a 9V battery when coil is turned on.

This is only with the contactor by itself. I have "worked out" how to wire it to the Mesa 7I96S -- but I don't know if it is correct yet.

(
In the process of learning the contactor, I have also learned that some single-phase power tool can't be switched via a contactor, such as this Milwaukee AGV 15-125-XE angle grinder: www.milwaukeetool.com.au/power-tools/met...ers/AGV15-125XE.html, because of start up protection, its manual states:

[
Startup protection:

When switched on, the machine will not start up after voltage breakdown. To continue working, switch the machine off and then on again.
]

So to be able to switch from the Mesa 7I96S, the wood router must not have this protection.
)

Thank you and best regards,

...behai.