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Hallo,

ich versuche gerade den Einstieg in LinuxCNC, um eine kleine Maschine mit zwei Linearachsen (Kreuztisch) zum laufen zu bringen.
Dafür würde ich gerne zwei AC Servos verwenden, komme aber nicht mehr weiter.
A6-Serie 400W RS485 AC-Servomotor-Kit 3000rpm, 1,27Nm mit Bremse, 17-Bit-Absolutwertgeber IP67 - A6-RS400H2B1-M17 | StepperOnline

Ich bin mir nicht ganz sicher ob das Problem an meiner (ersten) Linuxcnc Installation bzw. Konfiguration liegt, oder am Servotreiber.
Hardware ist ein PC mit Mesa 7i96 (ohne s) Karte, die per discovery auch erkannt wurde. 
Wenn ich im Pncconf wizard bei X Motor "Test/Tune Axis" versuche oder über die UI den Motor im Jog Modus bewegen möchte passiert nichts.
Der Motor bleibt auch frei beweglich und hält die Position nicht

Im Gegensatz zur Software von Stepperonline, wo der Motor sich manuell ansteuern lässt.
Hier kann ich aber in der Software auch den enable Schieber aktivieren.
Ein Enable Pin wird aber nicht explizit erwähnt, auch hier im Verkabelungsbeispiel nicht:
A6-Serie 400W RS485 AC-Servomotor-Kit 3000rpm, 1,27Nm mit Bremse, 17-Bit-Absolutwertgeber IP67 - A6-RS400H2B1-M17 | StepperOnline

Ich hätte den Treiber differentiell angeschlossen, wie im Datenblatt des Treibers auf Seite 44 dargestellt.

Bin ich zu voreilig den Motor direkt drehen lassen zu wollen und sollte erst mal tiefer in die Konfiguration meiner Maschine einsteigen, oder übersehe ich beim Servoantrieb selbst etwas?
Leider zwei unbekannt, da ich bisher nur GrblHAL in Verbindung mit CL57Y Treibern verwendet habe.

Viele Grüße,
Martin

 

Yes, all 7I76 output pins will be forced off when communication stops.

mooser wrote:

I can't help but think having the 220v power ripped out from the vfd over and over again isn't doing it any good

 

Hmmmm why are you switching the VFD power?
That should be done only on E-stop, normally use the VFD ON pin to enable and disable VFD.
Also, not sure but i think Mesa will reset all it's pins when connection is lost or LinuxCNC is closed, but this should be verified.

Thanks, after a few tries I managed to get it to work, but only for a few minutes. Then it would disconnect and reconnect until it froze completely. Now the USB stick is no longer detected and it also blocks the mouse and keyboard when I insert it.

Hi,
i am verry new to LinuxCNC and want to build a machine. The Axis will be made with Stepperonline A6 Servos with ethercat. But i´m stuck at the ethercat configuration, as I basically dont know anything about it. All i know is that i need an .hal, .ini, .xml and .conf file. I have already installed the ethercat drivers with the guide from rodw and can set the preop/ini mode via the Ethercat slave ... command. What do i do next? I have opended and created a machine, with the axis sim preset, now with the folders in my home directory. How do i create the needed files and integrate them, so it works? I have looked through multiple topics on the forum, but cant get any wiser with them. As I said, total beginner. Any step by step help much appreciated.

Thanks.
Spezi

I moved the voltage divider to the first stage and put a zener after it for overvoltage protection like Hakan.

@tommylight: Do you have a schematic you can share that shows how you use 3 resistors for voltage division. I'm having trouble visualizing your description.

Here's where I'm at right now. I need to add SPI isolation. That's going to be the biggest stage of all because there aren't any good through-hole all in one solutions like there are for SMD.

As a result, I started experimenting with Z-axis acceleration settings to reduce braking time. Previously, the acceleration was set to 2000. When I set the acceleration to 6000, no errors occurred over 14 hours of operation (115,000 measurements). When I set the acceleration to 12,000, I got an axis misalignment error. It works acceptably at an acceleration of 9,000.

As a result, www.forum.linuxcnc.org/38-general-linuxc...lock?start=30#344768

you could try a shutdown.hal file that setp's it to what you want. You may have to unlink the pin as well

Looking at your first post, its not network related. Note those previous settings do not persist. Running out of ideas. As PCW mentioned ensure the NIC interrupt is pinned to isolated core 5

You mentioned graphics so you probably have an Intel i915 GPU which hangs on my PC. Add these to grub to lock it downi915.enable_dc=0 i915.enable_fbc=0 i915.enable_psr=0 

I've got a SSR in the latching loop of my spindle contactor being controlled by one of the outputs from the 7i76
net machine-is-enabled hm2_5i25.0.7i76.0.0.output-07

Short of re-wiring, is there a way to temporarily leave that output turned ON when linuxcnc is being closed and re-started to pick up new config changes as I mess around inside the HAL and ini files setting up my new VFD and gear selection code? I can't help but think having the 220v power ripped out from the vfd over and over again isn't doing it any good
M

 

RotarySMP wrote:

I am not sure what to do about motion to a tool change position. Given the excessive size of my carousel, relative to the lathe envelope, and wide variety of tool geometries, tail stock etc I suspect it is safer to not automatically move to a tool change position. Do you have thoughts on that?
Cheers
Mark
 

The capstain turret lathes I've seen move to a safe location - generally max X & max Z - before tool changes (Hardinge, Haas CL1) but none of those have tailstocks.

Do you have a tailstock detector in the carriage?  If so, you could make a toolchange macro conditional so you aren't right up against the tailstock, potentially swinging a long drill in to the tailstock snout.

If not, you might think about installing such a detector.

00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-V (rev 10)
DeviceName: Onboard - Ethernet
Subsystem: Lenovo Ethernet Connection (7) I219-V
Flags: bus master, fast devsel, latency 0, IRQ 120
Memory at b1000000 (32-bit, non-prefetchable) [size=128K]
Capabilities: <access denied>
Kernel driver in use: e1000e
Kernel modules: e1000e

eee was already off, not sure about gro, lro or tso but I will try with them disabled also.

thanks, 6 core PC with one isolated = 5 available so that's right. i5 should be fine
What network card? is it Realtek?

I've been researching this today. Here are a few more obscure settings that may help where eno1 is the NOC name from ip a

Its an odd looking voltage plot.
I would look at the time after arc ok the THC is activated. To me it looks like it needs to be 2 seconds. I just can't see the setting I'm looking for.
Early activation could be disabled by the big fluctuations in voltage.