Is my Ruida 644XG controller dead?

Community Laser Talk
1

Hi all,
I wondered if anyone could help me diagnose my Ruida controller issue.
My machine has been working well until today , now

  1. LAN always shows as OFF even when it is physically connected to my network
  2. the y-axis no longer moves, it shows as its moving on the display, but nothing moves on the laser.

I’ve replaced the lan cable and checked the limit switches just in case but given both have failed at the same time I assume its controller related.

I’m not sure what the issue is, and can only assume its the controller.
If anyone could help diagnose, or suggest things I can try (maybe upgrade firmware?) that would be great.
Thanks,
Mat.

2

Software doesn’t break … don’t take a working machine that fails and assume it’s software, twiddle entries and/or upgrade the firmware in a hope it will fix it… doubtfully… This makes finding the problem more difficult.

There is a time to do this, only when you have a firmware upgrade that specifically targets the problem you have.

On top of that, these are pretty tough controllers.

Diagnose the problem first.

Start at the beginning.

Does it boot? If you are controlling it and the number are changing, it either did a good boot or it didn’t. Was there an error message on the Ruida console?

If the lan connection isn’t working, I assume you are doing this via the machine console…?

The lan led lights when you have a hardware connection and the activity led flashes when data is transferred.

You can see here that the X and Y motor driver signals are on two connectors that are essentially the same… you can swap these and see if the problem moves to the other axes.

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There is also a red fail led on the motor dirvers themselves. Ensure both have green leds illuminated.

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Check the leds especially the err led. These led are pretty informative…

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Make sense?

:smile_cat:

1 Like
3

Thankyou for this detailed reply, looks like I have some homework to do!

It does boot but very slowly after it reaches the x-limit, no error messages displayed on the console.

LED15 is lit up actually, for some reason I assumed that was normal (!)

4

That means there is 5V present within the controller. It should be on… My run led flases when it’s just sitting there.

You cannot control one of the axes, but the controller boots?

It has to move both axes to boot properly. Is the machine moving both axes then you can’t control one of them from the console?

Assume, Lightburn cannot connect? Did/can you try via usb?

:smile_cat: