PanelDue extend the wire

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?

FBG

I can`t understand what do you mean with crimp?

I use the same connectors that send with the duet2ethernet

Veti

@FBG

the metal parts at the end of the wire

if they dont make good contact that could be a cause of the bad connection.

FBG

I use the metal parts that send with duet2ethernet board.
I do several times, but this crimped is perfect.
I have a lot experience in this because is the same for the another connectors in duet