Additional PID Tuning for 1000W Heater
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I have a 1000W finned heating element that is controlled via a relay connected to my Duet 2 wifi. After several attempts to autotune the element, I still get a heater too slow fault each time I use it due to its very slow initial warm-up. I'm wondering if anyone has recommendations on workarounds or which variables to adjust first. Here is the M307 line for the heating element.
M307 H2 B0 R0.639 C402.9 D46.76 S1.00 V24.3 -
undefined JRCL marked this topic as a question
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You could try manually increasing the deadtime by editing the D value. Try 100 seconds. Though that may lead to a bit of overshoot as well.
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@phaedrux Unfortunately this didn't get me through the fault. Some overshoot isn't a big deal for this application.
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Where is the thermistor for this heater located in relation to the heater itself?
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@phaedrux The thermistor had in fact gotten further away from my element than intended. Thanks for the reminder, things are working as expected again!
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undefined JRCL has marked this topic as solved
