pid autotune failed timeout code example

Example: marlin pid autotune failed timeout

/*
*Solution: Go to Configuration_adv.h
*Icrease THERMAL_PROTECTION_BED_PERIOD
*and THERMAL_PROTECTION_BED_HYSTERESIS a bit. Not too much, but a bit should do.
*/
#if ENABLED(THERMAL_PROTECTION_BED)
  #define THERMAL_PROTECTION_BED_PERIOD        20 // Seconds
  #define THERMAL_PROTECTION_BED_HYSTERESIS     2 // Degrees Celsius

  /**
   * As described above, except for the bed (M140/M190/M303).
   */
  #define WATCH_BED_TEMP_PERIOD                60 // Seconds
  #define WATCH_BED_TEMP_INCREASE               2 // Degrees Celsius
#endif