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Heating Related

Check Heating Function​

High Temperature Warning

Heating operations generate high temperatures. Do not touch the hot end or heated bed, 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 working. At this time, use a multimeter to measure the output voltage of the port to confirm if the power supply is normal.

2. Check Power Supply Suitability​

  • Confirm whether the rated power of the power supply meets the equipment 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 supplies 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 usually meet the power requirements 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 cannot be controlled, but voltage output is measured, 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.

Notes:​

  • Follow safe operating procedures when measuring voltage to avoid short circuits or electric shock.
  • If the power supply is operating at a critical capacity, 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

# Heated bed PID calibration (change TARGET to the commonly used bed 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
    • Heated Bed
    printer.cfg
    [verify_heater heater_bed]
    max_error: 120
    check_gain_time:120
    hysteresis: 50
    heating_gain: 2
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