Ruida Min and Max Power% rescales actual power output?

LightBurn Hardware Compatibility Ruida controllers
1

Not on my 6442g Ruida… they are limits

I set min/max to 20%/80%

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60% spread, so 50% would be an ~80% duty cycle to the lps…

I run a line at 50% pwm and the Ruida puts out 50% pwm…

I ran a line with both min/max set to 90%, start speed is 5mm/s not that it matters…

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90% power in the layer, reads 80% from the controller, the set limit…

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A line with 10% power for max/min it runs a 20% pwm out of the controller… as was the 20% value set within the controller.

At least on my machine, these are limits… which is how I set it up…

If it didn’t work this way, it’d be an issue when setting up the maximum current on the lps…

:smile_cat:

2

It just shows me that the boards are different
which of course also means that they have to be set differently

3

I highly doubt it… you’d be breaking what people expect the hardware to do…

There are a ton of these out there, but this is a basic required operation.

I’m fine with what ever makes you happy.

:smile_cat:

4

I not because you a Ruida 6442g
I have a Ruida 6445g
that means there are 2 different boards

5

Hi Jack,

That’s interesting, well, based on Ruida settings at min power 20% and max power 80% I have listed below the test values sent from LightBurn (in ‘Line’ mode with min and max power the same) along with the corresponding power values I would expect the PWM signal to be delivering to the power supply - which I have confirmed to be correct on a scope.

If you get the chance to check some of these other values from your system just to confirm what is happening for you I would appreciate it. And let me know the firmware version you are running.(Edit>Get Controller Info). I’m running a RDC6442G with v8.07.70.

The 80% reading will be interesting for you to check since the value we are both expecting is wildly different!

Thanks.

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Cut Settings % power Vs. Ruida actual output power %

0 = 20
10 = 26 (you reported 20% here?)
20 = 32 (are you expecting 20% here?)
30 = 38 (are you expecting 30% here?)
40 = 44
50 = 50 (you got 50% here but that is also what I was expecting :slight_smile: )
60 = 56
70 = 62 (presume you get 70% here?)
80 = 68 (presume you get 80% here?)
90 = 74 (you reported 80% here?)
100 = 80

6

I got drawn into this because the comment you made would give me calibration or setup issues in how not only Russ Sadler advised, but also others familiar with these suggest.

It would be next to impossible to debug/fix something is you can’t command it to do something and have to compute or mess with a customers machine (and put it back) to see what I’m getting.

ruida-version

I didn’t check the internal pwm output, only at both ends… I know less than the minimum value always comes out minimum value, same with maximum value…

I’ve done a lot of this on my own in the past and I think I would have noticed this anomaly…

However, I will do a check on the mid range values between 0 and <50 along with >50 and 70…

I know if I go over 80% it will limit it there…

As much as it wouldn’t surprise me being another queer operation of Ruida, I guess I’d be really surprised…

Will let you know what surfaces… I have a BNC connectors for both pwm and laser enable, so it’s easy to plug it in and look at it…

Thanks…

:smile_cat:

7

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