UCR201 Connection Issues

[dequity11]

Hello,

Yesterday, 20 Dec 2024 I picked up my brand new UCR201 remote pendant - today I want to return it! I simply cannot get it to work due to "No connection to receiver" issues. Apart from reinstalling UCCNC which I do not want to do unnecessarily, I have tried all of the below.

1) Tried multiple USB ports on PC
2) Multiple configurations in setup software - Channel 1 - 8
3) Recommended RF callibration (emerg + home + GotoZero) from 1 - 15
4) Reboot
5) New batteries

The green light on the USB device lights up, the plugin window suggests that a connection has been made (image attached) and my PC is recognising the USB device (image attached) but still no connection. My PC is about 400mm away from the controller with no obstructions.

Can this be that complex that all the above have not worked?? Please help. It is urgent as I have a limited time to return the unit.

[mickecarlsson]

A stupid question, have you enabled the plugin in UCCNC as per the instructions?

To enable the plugin run the UCCNC software and navigate to the
Configuration/General settings tab page and press the configure plugins button.
On the popup Plugins configuration window find the UCR201 plugin row and
check the enabled checkbox to enable the plugin. If the Call startup checkbox is
also checked then the plugin configuration window will open every time the
software starts. If only the enable checkbox is checked then the plugin starts
without showing the plugin window on startup.
After enabling the plugin the UCCNC software has to be closed and restarted for
the plugin to run.

[thegreatwaldo]

Your RF signal strength box doesn't seem to have anything in it?
Cheers
Andrew

[dequity11]

Yip, that's why I highlighted it.

[dequity11]

RF signal strength box empty as noted, plugin enabled as per instructions. Dead as a door nail! Maybe I just have a dud???

[RsX]

Try this

[meena]

Looks like you've already tried many fixes. Did you check if there's a firmware update for the UCR201 or its receiver? Updating it might solve the connection problem.

[dequity11]

Truth is I'm not sure what else to try. I've had a look on the website and there don't seem to be any updates apart from what is buried within the UCCNC installation package.

[cncdrive]

Some customers reported that the UCR201 lost the RF calibration when they exchanged the battery in the UCR201.
Try the fine tuning the following way:

Press the E-stop button in. And press and hold down the Home and
GotoZero buttons together for at least 5 seconds.
Then the UCR201 goes into calibration mode. You can change the
calibration value with rotating the handwheel.
The new value can be saved pressing the Stop button.
Try values 15. and 4. to see if it resolves the issue. Because it is
possible that somehow the UCR201 forgot the RF calibration value.
It is a fine tuning of the RF frequency varying by device. But 4 or 15
should work for all UCR201.

Also check if the bootloader shows any errors as how RsX adviced.

[aeonbg]

Hi to all!
I’ve just experienced the same issue with my UCR201 pendant after changing the batteries. It’s amazingly frustrating!
I have tried everything @dequity1 had already mentioned. Tried every channel, both Europe and USA regions, both on the pendant and in plugin settings window. I’ve tried every RF calibration value! Even tried uninstalling and reinstalling UCCNC software, which of course did nothing. It can not be software issue, because the only change is in the pendant itself.
As an engineer, developer and person with no little experience, the problem seems very unpleasant. This pendant must be connected to this exact receiver just like every wireless keyboard or mouse. On such devices pairing is made let say it on hardware level and can not be done manually by pressing some magic button which of course is not present or either receiver or pendant.
Most frustrating fact is that event the forum’s admin can not give us any idea how to fix this issue. And let’s not forget that this pendant is not cheap!
Interestingly, after spending some hours browsing internet and searching for this problem, I have not found any solution. And I can not believe that no one has never changed their batteries or just handful of people had tis issue.
Please help!