Why Heater 1 appears to be over-powered???
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Hi,
When i do a temperature tunning, with M303 H1 S240.
The result is this message...
Warning: Heater 1 appears to be over-powered. If left on at full power, its temperature is predicted to reach 654C.
Auto tune heater 1 completed in 219 sec
Use M307 H1 to see the result, or M500 to save the result in config-override.gThe results of code M307 H1...is:
Heater 1 model: gain 629.9, time constant 149.2, dead time 6.2, max PWM 1.00, calibration voltage 24.2, mode PID, inverted no, frequency default
Computed PID parameters for setpoint change: P6.9, I0.226, D29.6
Computed PID parameters for load change: P6.9,Why?
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@peirof The message means what it says - so if for example a Mosfet failed in such a way that the PWM wasn't working, the temperature could reach 654 deg C which could be dangerous and possibly constitute a fire hazard. You can either choose to ignore that warning or use a lower powered heater. Some people have reported this issue when fitting silicone socks to E3D hot ends. Whether they then choose to ignore the warning of use a lower powered heater, I cannot say.
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The solution can be change Termopar?
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@peirof said in Why Heater 1 appears to be over-powered???:
The solution can be change Termopar?
Not sure what you mean by Termopar - it hasn't translated well. But if the heater is being reported as over powered then the solution would be to use a lower powered heater - say 30 Watt instead of 40 Watt for example. Or simply ignore the warning but take appropriate safety steps like not leaving the printer unattended for long periods.