A fan is connected on the FAN3 connector. The P/N is (if needed) 412J/2H from ebmpapst. This fan can run up to 11000 RPM... quite fast.
I am using WinTest b1.9.
LCD is a 633 (HW:1.5a, FW:k1.9).
In the FAN interface of Wintest, I have :
- RPM unchecked
- PPR 2
- Glitch 1
- Smooth unchecked
- power to 36%
This power gives ~8000 RPM.
After ~1 minute, the LCD seems to reset (backlight off -> on) and the fan goes back to full speed (100% -> ~11000 RPM).
I had a look with a scope on TACK, GND, PWR on FAN3 and they look OK... No bad glitch or strange behaviours.
In the enclosed file, you will see :
1 - TACK
2 - GND
3 - PWM command
Have you seen such a thing ?
Any help would be appreciated.
Thiam
I am using WinTest b1.9.
LCD is a 633 (HW:1.5a, FW:k1.9).
In the FAN interface of Wintest, I have :
- RPM unchecked
- PPR 2
- Glitch 1
- Smooth unchecked
- power to 36%
This power gives ~8000 RPM.
After ~1 minute, the LCD seems to reset (backlight off -> on) and the fan goes back to full speed (100% -> ~11000 RPM).
I had a look with a scope on TACK, GND, PWR on FAN3 and they look OK... No bad glitch or strange behaviours.
In the enclosed file, you will see :
1 - TACK
2 - GND
3 - PWM command
Have you seen such a thing ?
Any help would be appreciated.
Thiam
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