PanelDue extend the wire

Phaedrux

Can you show how you have your shielded cable connected and routed? Where is the shield grounded?

FBG

@Phaedrux Attach a photo of the shield.
Tested again with 115200 and SD card not show, and the error messages show.

Is aleatory, now:
Error: Bad command: M[]09 F"d99f"
Error: M4: Command is not supported in machine mode FFF

alt text

Veti

@FBG

instead of increasing the speed go with a lower than 57k baud rate

FBG

@Veti Yes Veti, i tested all baudrates, with another baud rates the SD CARD work, but the error message, always happen

Veti

you never wrote what the length of your wire is.

also check what wires that wires crosses or runs next to.

also which version is installed on the paneldue and which version of the duet firmware are you running?

FBG

@Veti PanelDue 7i version3.2.0, Duet2Ethernet with 3.1.1
Wire long around 3meters

Veti

@FBG said in PanelDue extend the wire:

Wire long around 3meters

from the documentation

There have been reports of cables up to 1500mm long being successfully used.

so you are double the longest possible length

dc42

A 3m cable should work as long as the conductors are not too thin.

FBG

@dc42 I will test with 1mm wire, the actual is only 0.25mm

dc42

@FBG, the maximum recommended resistance per conductor is 0.1 ohms. However, lower than that may allow higher baud rates.

FBG

@dc42 My actual wire say: Max conductor resistance 79 ohms/km

The new wire 1mm say: Max conductor resistance 19.5 ohms/km

What do you think?

dc42

@FBG said in PanelDue extend the wire:

@dc42 My actual wire say: Max conductor resistance 79 ohms/km

The new wire 1mm say: Max conductor resistance 19.5 ohms/km

What do you think?

0.079 ohms/m * 3 is about 0.24 ohms, well above the recommended 0.1 ohms maximum. The new wire will be about 0.06 ohms, so well within range.

wilriker

@FBG said in PanelDue extend the wire:

@Veti PanelDue 7i version3.2.0, Duet2Ethernet with 3.1.1

Note that PanelDueFirmware 3.2 will have some minor issues with RepRapFirmware below 3.2. You are using RRF 3.1.1. The expected issues do NOT contain the "Bad command" errors you posted (these are actually more related to your wiring) but once you have sorted them you will still possibly encounter some issues like slower update rates.

FBG

@wilriker @Veti @dc42
Now testing in 1.24PanelDue and 3.1.1Duet2Ethernet.
Same errors.

With wire 1mm and 0.06 is worse, only show temperature one time and is as no update nothing...

I am desperate, i don't know that do...

FBG

@FBG Tested always with all baud rates possibles

Veti

@FBG

for testing can you use the 10 pin connector that came with the panel?

FBG

@Veti With this everything is perfect

FBG

@FBG Sorry, i confused you.
I mean that with the original wire 4 pin is perfect.

What do you refer with the 10pin??
Remember this is PanelDue 7i

Veti

@FBG
and the provided 4 pin cable? is that working as well?

Veti

@FBG said in PanelDue extend the wire:

What do you refer with the 10pin??

i mean the black connector here
https://www.duet3d.com/image/cache/catalog/PD7i-03-Back-800x800.jpg

but if the original cable works, then we know the its not a problem of the paneldue, but the wiring.

how did you crimp your cable?