Hi everybody,
I have bought a K8039 and have it assembled by myself.
So far the device works fine with the self testing mode.
Now I have hooked up the dimmer to the DMX bus. The basic dimm function is working, but there was a continuous flickering ongoing. I have connected an oscilloscope in order to discover the reason for the flickering. I notice a random missing of the positive or negative part of the sinus. Sometimes even the value of the trigger seems to change, because of jumping of the trigger angle.
I have activated then the filter function. This effects the result in such way, that the flicker occurs much less, but still was happen on a level what is by far not acceptable. If the problem occurs the positive and negative part of the sinus was simultaneity affected.
I have read from many other cases in this form where some other users report about the same problem. For me it very clear that the PIC internal software is the reason for this trouble. I guess that there is a problem if the communication comes with an certain speed. The parallel necessary processing of the trigger for the Triac fails sometimes in this case.
Do you have any update of the firmware in meantime?
If not, is there a chance that somebody is working on that?
[quote=“franky”]Hi everybody,
I have bought a K8039 and have it assembled by myself.
So far the device works fine with the self testing mode.
Now I have hooked up the dimmer to the DMX bus. The basic dimm function is working, but there was a continuous flickering ongoing. I have connected an oscilloscope in order to discover the reason for the flickering. I notice a random missing of the positive or negative part of the sinus. Sometimes even the value of the trigger seems to change, because of jumping of the trigger angle.
I have activated then the filter function. This effects the result in such way, that the flicker occurs much less, but still was happen on a level what is by far not acceptable. If the problem occurs the positive and negative part of the sinus was simultaneity affected.
I have read from many other cases in this form where some other users report about the same problem. For me it very clear that the PIC internal software is the reason for this trouble. I guess that there is a problem if the communication comes with an certain speed. The parallel necessary processing of the trigger for the Triac fails sometimes in this case.
Do you have any update of the firmware in meantime?
If not, is there a chance that somebody is working on that?
best regards
Franky[/quote]
@ Admins from Velleman
I hope that people from Velleman are reading the posts here!!
I still waiting for an statement about my rised issue. I bought your product, payed good money for and it performed not as expected.
I waiting for any information.
Sorry for the inconvenience.
Please allow us some time to perform some tests.
At this time, we are not able to reproduce the problem, which makes it difficult to figure out what is going wrong in your setup.
Hello,
thanks for your statement. I accept the delay if you are working on the issue, but no result found yet.
If you need some more information to reproduce the issue I am able to measure with my DSO and share the results.
My applied controller is a SR-2812wi.
best regards
Franky