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Heating Related

Checking Heating Function​

High Temperature Warning

Heating operations generate high temperatures. Do not touch the hotend or heatbed, and ensure there are no flammable materials nearby.

1. Check the Status of the Heating Port Indicator Light​

  • LED Off: The heating port is not working. Please check if the pin settings in the configuration are correct.
  • LED On: Indicates the heating port is active. At this point, use a multimeter to measure the output voltage of the port to confirm if power supply is normal.

2. Check Power Adapter Compatibility​

  • Confirm whether the power supply's rated power meets the device's requirements. Insufficient power supply may prevent the heating temperature from reaching the set value.
  • Power Calculation Example:
  • If the power supply specification is 24V 5A, the maximum output power is 120W. If the heating port power is 40W, the remaining 80W is supplied to other components. This configuration may not meet the overall demand.
  • If the power supply specification is 24V 10A, the maximum output power is 240W, which can generally meet the power demands of the heating port and other components.

3. Troubleshooting Suggestions​

  • If the heating port cannot reach the set temperature, check if the heating element and connecting wires are damaged or have poor contact.
  • If the heating port has no control signal, the LED is off but there is still output:
  • If the heating port LED is off and uncontrollable, but voltage output is detected upon measurement, first check and save the corresponding pin settings in the configuration. If the output persists after saving, it can be determined that the MOSFET is damaged.

Precautions:​

  • Follow safety operation standards when measuring voltage to avoid short circuits or electric shock.
  • If the power supply is operating at its limit, it is recommended to replace it with a higher-power supply to ensure system stability.

PID Temperature Calibration​

PID calibration optimizes the stability and response speed of heater temperature control.

Calibration Commands​

# Extruder PID Calibration (Change TARGET to the commonly used printing temperature)
PID_CALIBRATE HEATER=extruder TARGET=200

# Heatbed PID Calibration (Change TARGET to the commonly used heatbed temperature)
PID_CALIBRATE HEATER=heater_bed TARGET=60
Important Note

Parameters must be saved after calibration is complete:

SAVE_CONFIG

Otherwise, the calibration data will be lost after a restart!

Temperature Rises, but Very Slowly​

  • Add Configuration

    • Extruder
    printer.cfg
    [verify_heater extruder]
    max_error: 120
    check_gain_time:120
    hysteresis: 50
    heating_gain: 2
    • Heatbed
    printer.cfg
    [verify_heater heater_bed]
    max_error: 120
    check_gain_time:120
    hysteresis: 50
    heating_gain: 2
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