SONOFF MINI-ZBRBS Zigbee does not stop when it reaches the end of its travel or continues to power the blind at the beginning.
With the Dual R3 model, when I raise the blind, the relay stops energising the blind, but the SONOFF MINI-ZBRBS Zigbee does not.
Will it be fixed?
Today I returned two because they do the same thing.
Thank you.
I have returned them all because they are dangerous with the relay activated 24 hours a day.
Do you have a solution?
The ZBMINI-RBS device is designed to work with a motor equipped with a limit switch. The relays are only deactivated when the motor is stopped by the limit switch. This ensures that the roller shutter will always close completely, even if it becomes decalibrated.
The ZBMINI-RBS device is designed to work with a motor equipped with a limit switch. The relays are only deactivated when the motor is stopped by the limit switch. This ensures that the roller shutter will always close completely, even if it becomes decalibrated.
None of the other brands I have used work this way.
All my DualR3s disconnect the relay when they reach the end of their travel, just like Shelly and other brands.
Consider that the ZBRBS leaves the relay in either the open or closed position 24 hours a day, with the problems that this entails in terms of heating, consumption, etc.
Even the Wi-Fi version disconnects the relay, I think. I don’t have a Wi-Fi RBS, but I’ve seen videos.
That must be a firmware error.
You say it’s so that it doesn’t become uncalibrated, so if I open it to 99%, I disconnect the relay and, as you say, it will become uncalibrated.
It’s a firmware error, and I returned them for that reason. It will take time to update it, but if they do, I’ll buy them again.
But I don’t like having that relay running all day, especially since I don’t know what quality it is and how long it will take for the coil to burn out when it’s activated 365 days a year.
Think about it.
Thank you for responding.
You may be right. I don’t have a ZBMINI-RBS to confirm this error. I use a MINI-RBS and know that the relays disconnect after 2 minutes, regardless of whether the engine stops. If it’s as you say, you should report the issue to Sonoff.
I never disconnect the ZBRBS at any time. Wait more than an hour and I’ll remove them. I didn’t want to have a relay continuously energised.
I had time to return them, so I returned them all for that reason.
I don’t feel safe having the relays in my entire home running 24 hours a day, 365 days a year, and without knowing their quality, I don’t think those coils will last very long.
I hope you can resolve this issue, and I will purchase them again.
Thanks.
I have this ZBRBS. If the controller is calibrated correctly, it will shut down. The calibration process should be more intuitive, in order for it to work, it must be done correctly to the end.
If the calibration process has been completed correctly, the percentage setting of the curtain also works.
It works correctly, but the relay does not switch off. What stops the curtain is the motor’s limit switch.
Stand near the ZBRBS and you will see that the relay does not switch off; it continues to power the motor when it has finished raising the curtain.
I hope you see it. I don’t know why this calibration stops, but it’s because it has reached the end of the curtain motor’s travel.
On that day, the relay will remain energised until you set the curtain to an intermediate position. If you set it to 100% or 0%, the relay will remain energised and the motor will continue to run until you change to an intermediate value.
Try it and you will see that the relay does not stop, but the blind does.
I suppose they will sort it out.
Technical support has informed me that they are looking into it and will provide me with a solution.
They already know the problem.
The RBS Wi-Fi version also does this, but they say it stops after 2 minutes, whereas the Zigbee version never stops.
Thank you for responding. I look forward to a solution.
It is dangerous to have a coil running day and night. In addition to the consumption, even if it is minimal, the wear and tear on the relay will be brutal. I do not believe that a quality relay will be installed, in addition to the heating.
If you know a little about electronics or electricity, use a multimeter tester or whatever you call it.
Raise the blind to 100% and place the voltmeter between N and out1 or out2, as appropriate for the total rise of the blind.
You will see that you still have power because the relay did not switch off when the blind was raised.
It does not matter whether you calibrate it automatically or manually; when you raise the blind, it will stop at the inner end of the motor and the relay will continue to send voltage.
If you don’t have a meter, listen carefully. Raise the blind and you will hear the relay click. When the blind is fully raised, you should hear the relay switch off, but it doesn’t; it keeps running.
You can try both ways.
I did a lot of testing and put the dualR3 back in. Once the shutter goes up, it stops the relay. You can hear the click as it goes up and the click when it stops. It also has an LED that turns off after 2 or 3 seconds.
The ZBRBS does not turn it off.
You can see it at around 11:45.
I’ve seen it on a correctly calibrated blind, but you can see it visually as the light never goes out, it stays on.
Ok, sorry for the confusion, you’re right. I wanted it to work with a voice command to Google Assistant. I set the closing scene to 99% and the opening to 1%. In such a scenario, the relays turn off.
Correct!
If you say “Alexa, blind at 100%”, it will continue to operate even if it rises.
If you press the up button, it will continue running even when it reaches the top.
If you say 99% or 1%, the relay will stop.
I did not use that setting because the family uses the button to raise the blind 100% and lower it.
Thank you.
At my place “External Switch Mode” → “Pulse Mode”. When you release the button, it turns off. Physically, the button also retracts with a spring.
It’s not convenient to have to stand in front of the window.
It’s more convenient to press and go all the way up without waiting, or press again to stop it.
I even have windows that I only use a single button for, as one press is enough to raise the next one, stop, and then lower it.
But that is not the case.
If the ZBRBS were properly programmed like all the others, it would function correctly regardless of the mode you use.
In my case, I have automations based on the outside temperature to raise or lower the temperature completely, and only raise it 30% at midday when the sun is not shining.
That’s why I don’t like ZBrbs, as the relay would be on all night with the window open and almost all day with the window closed in summer, and the opposite in winter.
I have also considered that this model does not measure consumption.
That’s why it leaves the relay activated, so it knows it’s open, and that’s why it always matches the percentage you set, and if you lower it, the same thing happens.
In this case, I don’t like this system at all.
But if it’s not the hardware’s fault, I suppose they’ll fix it, or at least I hope so.
Right now, anything said is useless, as it doesn’t work like any other brand.
I don’t like how it works either, and I would stick with the DualR3.
But technical support is looking into it. In the Wi-Fi model, they say they will set it to a shorter time so that it is not always on.
I suppose they do the same in the Zigbee model.
Thank you all, I’ll wait for it to work properly.
In my case, I achieved what I wanted with the scenes. The Google Assistant works, the physical buttons too. Updating the firmware will definitely come in handy, it will be easier.
Thank you for taking the time to share your feedback with us. I am the Product Manager for the smart curtain switch you are using, and I sincerely apologize for any inconvenience or concern this issue has caused you.
We take all user feedback seriously, and I want to assure you that our product is designed to turn off the relay automatically upon detecting motor stall after fully opening or closing the curtains. However, in rare cases, compatibility issues with certain motors may prevent this feature from functioning as intended.
To help us better understand and address the issue you’ve encountered, I’d like to kindly ask for your assistance with the following details:
Are you using the eWeLink app to control the device?
Did you use the automatic calibration or manual calibration during setup?
How did you determine that the relay did not shut off?
After fully opening or closing the curtains, what is the status displayed on the app?
If possible, could you also share any photos or videos that illustrate the issue? This would provide valuable insights for our team to investigate further.
Your feedback is incredibly important to us, and it will play a significant role in helping us improve our product. We truly appreciate your support and patience as we work to resolve this matter.
Are you using the eWeLink app to control the device?
I use it with automation, with Alexa, and with a push button, all with the same result.
Did you use the automatic calibration or manual calibration during setup?
Calibrate it automatically with the wizard that comes with the application, raise it, lower it, then raise it in short increments and lower it in short increments. I don’t remember the order.
I successfully completed the calibration.
When I saw that the internal relay on the ZBRBS wasn’t turning off, I didn’t like it, so I thought I’d use manual calibration to see if that would turn off the relay.
I used manual calibration using the ZBRBS button as explained in the manual.
Same result: the relay remains 100% activated.
You can also use manual calibration from the app and from the double button in button mode.
This will also give the same result.
How did you determine that the relay did not shut off?
The first thing I used was my ear close to the device.
Click when it goes up and do not click again when it reaches 100%. Wait and listen for any sounds.
So I used a voltmeter and saw that there was voltage at the Out1 or Out2 terminal, which are the outputs to the motor. I don’t remember which one was the upward one.
After 2 seconds at 100%, the DualR3 clicks and turns off. It also has an LED for Out1 and Out2.
After fully opening or closing the curtains, what is the status displayed on the app?
This device has a picture/animation of a blind, but the DualR3 does not have this picture/animation.
At 100%, the image is completely open and the number 100% is displayed in the bottom bar.
The opposite happens when lowering the blind.
If I use 50%, logically the relay stops.
If possible, could you also share any photos or videos that illustrate the issue? This would provide valuable insights for our team to investigate further.
I always take screenshots of all problems, but I didn’t have time to set it up, so I did it that day because it was the last day to try it out and return it.
When I saw that neither of the two I bought in a pack worked, I returned them the next day.
I can’t do any more tests, but the dualR3 does turn off the relay, and it’s reassuring to know that the coil won’t be energised every day.
I had already seen this problem some time ago before putting it up for sale, and I thought it would be a sample unit and would already be fixed.
I am very sorry that I cannot be of more assistance, as I do not have any units at the moment.
Thank you for your concern. Please let me know when the issue is resolved, as I would like to purchase them again because I want Zigbee devices
Thanks!
Any progress?
You could make firmware like the dual R3 that disconnects the relay after about two seconds, or if it’s easier for you, a little more than 10 seconds.
The important thing is that it is not activated 24 hours a day.
I am interested in switching to Zigbee blinds, but I don’t see any progress.
Thank you.