PID Overshooting

Discussion in 'Calibration, Help, and Troubleshooting' started by Torx, Aug 20, 2019.

  1. Torx

    Torx Member

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    TEVO Tarantula Pro
    ED3 V6 genuine

    My Volcano was prone to leaking from day one and I was tired of rebuilding it every few prints. Yes, I know how to rebuild them as I have run 2 standard TT for a year with no issues. I had a ED3 V6 installed on one of my Tarantula and it was installed with no issues using Marlin Easyconfig for TEVO.

    I have Marlin_2.0.0_TTPro_Standard now and when ever I set a temp it insanely goes over temp within seconds. If I set it to 200 then typically the max alarm goes off as it hits 285 before starting to settle down. Once it cools it keeps within a few degrees of 200.

    I tried to PID tune it and it overshoots ;within seconds every time and fails.

    Send: M503
    Recv: M301 P26.27 I2.49 D69.41

    Send: M303 E0 S200 C3
    Recv: PID Autotune failed! Temperature too high

    Any help would be appreciated.
     
  2. Torx

    Torx Member

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    I did just fine PID_MAX define, which is normally set to 255 but with my 40w heater that it some people are better with around 160. I will try that out.
     

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