452 Ethernet Communication Error,

1

After getting this error message, I restarted the system. It made three passes and restarted. The system made three passes with the same error message. I then went into the 270 tech bulletin and went through every measure step by step. Still, there was nothing. I reached the point in the tech bulletin where it says it was an easy fix. If it was a 452, I ran the connection test multiple times, and it failed every time. I disconnected the ethernet cord directly to the board, then disconnected it and used the cord in the control box. Still, there is nothing at this point. They ran the report they recommended, and it’s Greek to me. No clue where to go from here; I’m at a complete loss.

2025-03-13_08-18-41
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2025-03-13_06-38-38
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report_98F07B91FF38-0322237053_2025-03-13_08-45-29.zip (2.0 MB)

2

Ok, I think you have a few things confused here… So let’s set them straight:

The first image you show (the big block of text) that is actually a file you run to “stress test” your ethernet connection.

You would load that file like any other G code job and run it. It should produce results like this:

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It looks like what you did here is just load the actual test file in a text editor to look at it.

If your controller does connect, but not reliably I would run this “stress test” properly and see what the results are.

The “report” you have posted here is just a report from your CNC12 software.

If things we’re working before and this happened something had to change on your setup.

If you haven’t tried already fully restart your computer AND the control box and see if it reconnects.

If it doesn’t re-run the PC tuner software and let it re-configure your PC and network card and see if that fixes it.

I would also inspect the ethernet cables themselves. Make sure they aren’t damaged. Make sure you are running the cable that WE provided you and not a third party cable. The cables we provide are shielded unlike most ethernet cables. Also make sure your PC is plugged directly into the controller and you’re not using a hub, splitter or switch.

If none of that works you may want to try a new ethernet adapter. I’ve had very good luck with these: Amazon.com: TP-Link USB to Ethernet Adapter (UE306), Supports Nintendo Switch, Foldable USB 3.0 to Gigabit Ethernet LAN Network Adapter, Supports Windows, Linux, Apple MacBook OS 10.11 - 12(Driver Required) : Electronics

I suspect what is going on here is very simple, we just need to figure out what it is.

If the above steps don’t solve your issue please open a support ticket with us and we’ll get you sorted out.

3

I thought Centroid recommended not to use a USB connection

When I run the test in CNC12 a (9031 DREVER FAULT!) error comes up

Can you have a bad cord if the laptop is communicating with the controller and the massage only comes up after 3 passes

5

Do you have a servo system?

Yes. Please check the cabling very carefully. Are you using our cable?

6

yes on the servo
yes on your cord
I disconnected the cord and used cord the is in the controller box directly too

7

Turning on the spindle electronics solved 9031

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8

The code 452 only comes under a load…
1st time 3passes stop
2nd time started at the beginning with the first three passes and no load. The second 3 passes were under load and stopped.
3rd time 6passes noload 4 passes under load stop

9

When you say under load… Is there a dust collector involved?

10

Yes, but on a separate circuit
Under load = cutting into the board

I posted this in the Centroid Community CNC Support Forum. This was there question
Noise? Are your step and direction wires shielded twisted-pair cables? Are your step and direction cables separated from your power wires?

There are a few recent Ethernet communication errors in the logs. This could be noise as well. Are your spindle and axis drive power cables shielded and separated from communication wires?

my answer :It is an Avid pro60120. The wires are what they provided and I wired up as they instructed

are the power cables shielded?

11

We did a lot of engineering work to make sure that everything in the control box is protected.

Sounds like your dust hose might be grounding to your machine frame. My recommendation would be to make sure that your machine frame itself is connected to ground, AND that your dust collector is ALSO connected to ground. You want to give the static a path of least resistance to ground and not you or the control box.

If you’re not already using it dust hose with a metal wire in it can be helpful because if gives you a way to get that static from the hose to your dust collector and to ground easily.

TLDR is if the problem is happening because your dust collector is on it’s very likely static and you need to mitigate that.

12

Problem Solved: The static charge created by the dust collection was the cause. I disconnected the hose, and that took care of it.
I’ll ground the dust collector and the body of the CNC, and it should be good. Thanks for all your help.
I recommend that anyone with the same 452 error start with turning off the dust collection. It might save you a lot of frustration

13

Glad you got it sorted out!

14

How would you suggest connecting the machine frame to ground?

1 Like
15

Great Question

16

When I had a shop with a metal structure I just ran a wire from my machine frame to the building.

In a “regular” shop with a wood frame you can run a wire from the machine frame to your earth ground in your building wiring. In modern buildings the ground wire always goes back to earth ground eventually.

Consult an electrician if you are unsure of which wires to use.

1 Like
17

Was it attached in one place or multiple places?

18

I had a static problem that was causing plastic shavings to stick to my hose and dust shoe, so I got a section of static dissipative hose: Amazon.com: Fulton 4 inch x 10 foot Dual Anti Static | Dual Dissipative | Semi Transparent PVC Hose Impregnated with Carbon Black | Reinforced with a Carbon Wire Helix | Made In USA (4" x 10')

This is the last section that connects to my dust shoe. I then wrapped a wire around the internal wire that gives the tube shape, and the other end to the machine chassis (gantry).

I haven’t noticed any signs of static buildup after doing that.

19

That’s the hose I’m using. I scraped off the black and saw what looks to be aluminum wire under it. I will shave off the black and connect the copper ground wire. I’ll send pics when finished.
Do you have pics of how you grounded it?

20

Nothing fancy :slight_smile:

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