UV light calibration error: Requested intensity cannot be reached by max. allowed PWM
 
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UV light calibration error: Requested intensity cannot be reached by max. allowed PWM  

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gebi
 gebi
(@gebi)
New Member
UV light calibration error: Requested intensity cannot be reached by max. allowed PWM

Recently I have failed prints with my SL1 as these were not hardened enough and the prints a extremely soft and some parts a missing. My first guess was, that the UV LED's has a problem. Thus, I replaced the UV LED's with the original spare part.

No changes.
Next, I  performed the UV intensity calibration with the UV calibrator (bought together with the LCD screen) under firmware 1.4.

This gives me the following error:
UV error

Looks like that the driver electronics for the UV LED's have a problem. Somebody else encountered such problems?

New driver board ?

Posted : 23/07/2020 10:58 am
Adam liked
akshay.k
(@akshay-k)
New Member
RE: UV light calibration error: Requested intensity cannot be reached by max. allowed PWM

Did you get any help with that?

 

I got the same problem in replacing new LCD Display.

Please let me know if you get anything.

...
Posted : 11/11/2020 7:51 am
Adam liked
Adam
 Adam
(@adam-18)
New Member
RE: UV light calibration error: Requested intensity cannot be reached by max. allowed PWM

I'm having the same issue.

Posted : 06/01/2021 3:03 pm
gebi
 gebi
(@gebi)
New Member
Topic starter answered:
RE: UV light calibration error: Requested intensity cannot be reached by max. allowed PWM

@adam-18

By replacing the LCD the printer is working again. the LCD has a very limited lifetime. My interpretation is, that a degraded LCD has low contrast, and therefore not enough light is reaching the resin....

Posted : 06/01/2021 7:23 pm
Adam
 Adam
(@adam-18)
New Member
RE: UV light calibration error: Requested intensity cannot be reached by max. allowed PWM

@gebi

Thanks for the reply. By LCD do you mean the print display (pictured below)?  If so, I just replaced it and am getting this error calibrating it.

Posted : 07/01/2021 12:44 pm
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