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Author Topic: Mach3 / UC100 Connection lost?  (Read 10602 times)

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Offline Filou

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Re: Mach3 / UC100 Connection lost?
« Reply #10 on: February 16, 2017, 04:49:14 PM »
Howdy, more of the same

I observe erratic connection losses between a UC300 and a Win 7 (32bits) laptop box running Mach 3. No power RF sources around, simply 3 axis actuated by NEMA 24 steppers.
Motor cables shielded with braid and separated from limit / home cabling which run in their own shielded braid. Single point grounding to avoid ground loops.
Connection losses do not seem to be influenced by machine activity, or the lack thereof.
I could be in IDLE state for an hour, or work for 30 minutes without any connection loss or be idle for 2 minutes and experience 5 connection losses in a row.
I do not seem to be able to find any pattern.  Hard to say if it is Mach 3 / the Win 7 box / or the UC300 motion driver. Tested several USB cables and double checked for ground loops.

Any hint is welcome, 

Offline swets

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Re: Mach3 / UC100 Connection lost?
« Reply #11 on: August 14, 2017, 04:57:49 PM »
I have also problems with UC100 sync errors.... but I think the problem is my USB RS485 dongle?
if I run my machine , and I change the speed of my spindel with the buttons on the VFD, I have no problems...

Change I the speed via the USB RS485 dongle I have UC100 sync errors al the time?
if I push the up or down speed button in Mach3, the blue led goes off... and I see that the buffer in the plugin UC100 screen goes empty....?

https://www.youtube.com/watch?v=Ur4_iC8LQ2g&feature=youtu.be

I think I go try a other USB-RS485?

Offline khalid

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Re: Mach3 / UC100 Connection lost?
« Reply #12 on: August 15, 2017, 06:54:15 AM »
Any news Swets how u overcome the problem?
Re: Mach3 / UC100 Connection lost?
« Reply #13 on: August 15, 2017, 07:08:23 AM »
Hi just my two bobs worth, replace the usb cable that came with uc100, I had problems with the cable, it was actually loose fit and vibrations on the machine caused problems, bought a new cable and never had that problem again that was two years ago still going good. ( touch wood!)  ;D

Nick

Offline swets

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Re: Mach3 / UC100 Connection lost?
« Reply #14 on: August 15, 2017, 03:23:34 PM »
No, still have the problem...  I have al ready a beter usb cable... with a ferrietcore and I have a couple of this: https://www.ebay.com/p/Ferrite-Core-Yamay-10pack-Snap-on-7mm-Ferrite-Core-Cord-Ring-Choke-Bead-RFI/2009492176?iid=282419335119

still not found the problem....
Re: Mach3 / UC100 Connection lost?
« Reply #15 on: August 16, 2017, 06:55:59 AM »
When I was having problems with my UC100, I tried many things being described; power saving modes, new cable, re-routing usb cable, etc.

The last thing I did was add a powered USB hub between the computer and the UC100.  Since then, I have much better success.  I will say, if I had to do it all over again, I would go the ethernet way and avoid USB - seems like a lot of people have trouble with it.

Chris D

Offline swets

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Re: Mach3 / UC100 Connection lost?
« Reply #16 on: August 19, 2017, 03:03:48 PM »
yes me to.... I have the UC100 because it is the same as the LPT, so I don't need a other BOB... and don't have to change the wiring....
and I have now a PC without a printerpoort... so I can't back....    stil have problems....
and only if I send a command with the rs485...

I orde a other rs485...   maybe that helps...???

I go try the other VFD-plugin .... maybe that helps?   later more.....