SKR 1.3 Error:Heating failed, system stopped! Heater_ID: bed

После настройки PID стола.

SENDING:M303 E-1 C8 S90PID Autotune start bias: 131 d: 123 min: 89.70 max: 90.14 bias: 131 d: 123 min: 89.70 max: 90.17 bias: 111 d: 111 min: 89.83 max: 90.41 Ku: 492.16 Tu: 11.97 No overshoot Kp: 98.43 Ki: 16.44 Kd: 392.81 bias: 102 d: 102 min: 89.86 max: 90.30 Ku: 591.41 Tu: 10.92 No overshoot Kp: 118.28 Ki: 21.66 Kd: 430.59 bias: 98 d: 98 min: 89.86 max: 90.20 Ku: 738.68 Tu: 10.42 No overshoot Kp: 147.74 Ki: 28.35 Kd: 513.19 bias: 98 d: 98 min: 89.83 max: 90.17 Ku: 738.67 Tu: 10.01 No overshoot Kp: 147.73 Ki: 29.52 Kd: 492.94 bias: 96 d: 96 min: 89.86 max: 90.24 Ku: 657.83 Tu: 10.31 No overshoot Kp: 131.57 Ki: 25.52 Kd: 452.15 bias: 89 d: 89 min: 89.90 max: 90.27 Ku: 609.86 Tu: 10.91 No overshoot Kp: 121.97 Ki: 22.36 Kd: 443.61PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h#define DEFAULT_bedKp 121.97#define DEFAULT_bedKi 22.36#define DEFAULT_bedKd 443.61

Потом, поправил в марлине,  (скачал Marlin-2.0.x ,не знаю на сколько это правильно?). в блоке

//===========================================================================//====================== PID > Bed Temperature Control ======================//===========================================================================/** * PID Bed Heating * * If this option is enabled set PID constants below. * If this option is disabled, bang-bang will be used and BED_LIMIT_SWITCHING will enable hysteresis. * * The PID frequency will be the same as the extruder PWM. * If PID_dT is the default, and correct for the hardware/configuration, that means 7.689Hz, * which is fine for driving a square wave into a resistive load and does not significantly * impact FET heating. This also works fine on a Fotek SSR-10DA Solid State Relay into a 250W * heater. If your configuration is significantly different than this and you don't understand * the issues involved, don't use bed PID until someone else verifies that your hardware works. */#define PIDTEMPBED //#define BED_LIMIT_SWITCHING/** * Max Bed Power * Applies to all forms of bed control (PID, bang-bang, and bang-bang with hysteresis). * When set to any value below 255, enables a form of PWM to the bed that acts like a divider * so don't use it unless you are OK with PWM on your bed. (See the comment on enabling PIDTEMPBED) */#define MAX_BED_POWER 255 // limits duty cycle to bed; 255=full current#if ENABLED(PIDTEMPBED)  //#define MIN_BED_POWER 0  //#define PID_BED_DEBUG // Sends debug data to the serial port.  // 120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)  // from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)  #define DEFAULT_bedKp 121.97  #define DEFAULT_bedKi 22.36  #define DEFAULT_bedKd 443.61  // FIND YOUR OWN: "M303 E-1 C8 S90" to run autotune on the bed at 90 degreesC for 8 cycles.#endif // PIDTEMPBED

Выставляю температуру стола 80 С. получаю 70 С. с ошибкой Error:Heating failed, system stopped! Heater_ID: bed

БП 24в. стол 24 в.

Термистор установлен в отверстие стола обмазаный термопастой. Стол утеплен.