Heater faults with 1.15c September 08, 2016 02:16PM |
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Re: Heater faults with 1.15b3 September 08, 2016 03:51PM |
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Re: Heater faults with 1.15b3 September 09, 2016 01:55AM |
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Re: Heater faults with 1.15b3 September 09, 2016 02:48AM |
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Re: Heater faults with 1.15b3 September 09, 2016 03:43AM |
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Re: Heater faults with 1.15b3 September 09, 2016 08:03AM |
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Re: Heater faults with 1.15b3 September 09, 2016 12:00PM |
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Re: Heater faults with 1.15b3 September 09, 2016 02:10PM |
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Re: Heater faults with 1.15b3 September 09, 2016 05:30PM |
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Re: Heater faults with 1.15b3 September 10, 2016 05:44AM |
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ChristofSchwiening
I am using 1.15c on both of my Ormerods - it works fine on my Ormerod 2. I find the temperature fault code has made it impossible to print with ABS on my Ormerod 1 - for which the bed heater is hopelessly underpowered. I can just get the bed to 120 so that ABS sticks to the glass plate (by insulating it before beginning the print) - but, whilst printing the first layer the nozzle cooling fan causes the bed temperature to drop more than 10oC triggering a heater fault. It isn't a heater fault. Is there anyway we can increase the tolerance - or even better disable the function that triggers the fault and then results in disaster as the print lifts off the bed?
Re: Heater faults with 1.15b3 September 10, 2016 05:20PM |
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Re: Heater faults with 1.15b3 September 11, 2016 02:24AM |
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DRTak
I am in the same boat. I cant get my Kossel to heat up to 265deg C for a PET G print after upgrading the firmware. It is driving me nuts. I assume my power supply is underpowered. So at 44deg C it just says fault and will not heat up anymore. I am using firmware 1.15C.
Re: Heater faults with 1.15b3 September 11, 2016 05:17PM |
Registered: 8 years ago Posts: 319 |
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dc42
Quote
DRTak
I am in the same boat. I cant get my Kossel to heat up to 265deg C for a PET G print after upgrading the firmware. It is driving me nuts. I assume my power supply is underpowered. So at 44deg C it just says fault and will not heat up anymore. I am using firmware 1.15C.
If it's cutting out that early in the heating process, then the gain parameter in the heater model is much too large for your heater, or the dead time parameter is too small. Either you didn't run auto tuning, or you did but the process didn't correctly evaluate the parameters, or you didn't copy the auto tune output correctly into the M307 command in config.g
Re: Heater faults with 1.15b3 September 12, 2016 02:10AM |
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Re: Heater faults with 1.15b3 September 12, 2016 04:30AM |
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Re: Heater faults with 1.15c September 13, 2016 03:57AM |
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Re: Heater faults with 1.15c September 13, 2016 06:28AM |
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Re: Heater faults with 1.15c September 13, 2016 01:39PM |
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Re: Heater faults with 1.15c September 13, 2016 08:35PM |
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Re: Heater faults with 1.15c September 13, 2016 11:07PM |
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Re: Heater faults with 1.15c September 13, 2016 11:09PM |
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Re: Heater faults with 1.15c September 14, 2016 03:38AM |
Registered: 10 years ago Posts: 14,672 |
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DADIY
Hmm I'm not sure PID/PWM control with an SSR is such a good idea.
Re: Heater faults with 1.15c September 14, 2016 03:40AM |
Registered: 10 years ago Posts: 14,672 |
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ElmoC
Upgraded to 1.15c earlier and tuned my hotend and heated bed. Ran a print and let everything cool down. Turned the hotend back on to change filament and when it reached the target temperature of 205, I got this...
Error: heating fault on heater 1, temperature rising much more slowly than the expected 0.0°C/sec
Interesting. It was rising slower that not rising at all?
Re: Heater faults with 1.15c September 14, 2016 04:00AM |
Registered: 8 years ago Posts: 301 |
Quote
dc42
Quote
ElmoC
Upgraded to 1.15c earlier and tuned my hotend and heated bed. Ran a print and let everything cool down. Turned the hotend back on to change filament and when it reached the target temperature of 205, I got this...
Error: heating fault on heater 1, temperature rising much more slowly than the expected 0.0°C/sec
Interesting. It was rising slower that not rising at all?
I am puzzled by that too. It's on my list to investigate.
Re: Heater faults with 1.15c September 14, 2016 04:00AM |
Registered: 8 years ago Posts: 301 |
Quote
dc42
Quote
DADIY
Hmm I'm not sure PID/PWM control with an SSR is such a good idea.
PWM frequency for the bed and chamber heaters is 10Hz, for compatibility with SSRs.
Re: Heater faults with 1.15c September 14, 2016 12:33PM |
Registered: 10 years ago Posts: 14,672 |
Quote
DADIY
I've seen that error at 0.1c - it occurred within a few seconds on the heated bed being turned on. Perhaps there needs to be a buffer between turning on and monitoring starting?
Error: heating fault on heater 0, temperature rising much more slowly than the expected 0.1°C/sec
Re: Heater faults with 1.15c September 21, 2016 05:43AM |
Registered: 7 years ago Posts: 109 |
Re: Heater faults with 1.15c September 21, 2016 06:24AM |
Registered: 10 years ago Posts: 14,672 |
Re: Heater faults with 1.15c September 23, 2016 04:12PM |
Registered: 7 years ago Posts: 109 |
Quote
dc42
You have a heater with a very high gain and a long time constant. You may need to reduce the PWM as low as 0.1 to tune it. You may also need to temporarily increase the M307 dead time parameter to 60 seconds or greater to avoid a heater fault during tuning.
In the 1.16 revision of RRF I intend to change the tuning algorithm so that the P parameter is either much less critical or not needed at all.
Re: Heater faults with 1.15c September 24, 2016 05:37AM |
Registered: 10 years ago Posts: 14,672 |