Odrive usb isolator not work

1

good day I am the owner of a motion platform with 3x odrive plugged into one usb hub3.0 connected to an extended usb 2.0 active . my question is . try to plug 3x usb ground isolator into the hub. the problem is that I do not want to work if I plug them all three into the usb hub .if I plug one works if I plug the others stop working either all or one of them( does not detect me then the ports for odrive in the computer) any idea why? maybe i need to change the usb 2.0 extension to usb 3.0? thank you for your help. Hausdec Adum3160 Digital Signal… https://www.amazon.co.uk/dp/B0C9LCT51G?ref=ppx_pop_mob_ap_share

2

What hub exactly are you using? The isolators definitely draw a bit of power, maybe it’s overloading the hub? Do the lights come on in all the isolators?

3

hello thank you for your reply and interest in solving my problem.All ground isolators light up when I plug them into the hub. I use this one . atolla Powered USB 3.0 Hub 20W, 7… https://www.amazon.co.uk/dp/B07VGFXQRF?ref=ppx_pop_mob_ap_share and ectended usb USB Extension Cable 15M, USB2.0… https://www.amazon.co.uk/dp/B07TGV5WC3?ref=ppx_pop_mob_ap_share , thx

4

Likely the USB extension cable is the issue – signal integrity with multiple devices is likely too low. Why are you using USB and not CAN bus, which is designed for long wire lengths like that?

5

everything works fine if I don’t use
ground isolators ( I wanted to increase protection) but I can probably do without it. I use long cables because it has
a computer in the house and a platform in the garden house

6

I see. Well, you definitely need USB isolators to protect the ODrives. What OS are you using?

8

I use windows 10. Could you send me a link to the exact site of what I should buy?

9

I frankly think this is an issue caused by the USB extension cord and/or USB hub. I’d try a 2.0-only hub, or just switch to CAN bus if possible.

10

I will try first usb hub 2.0 . for a week I will give you
know when I try usb 2.0.thx I don’t know
nothing about cab-bus or how to turn it on and what it needs for that I am not
an expert in these things :frowning: