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Error: Attempt to move motors when VIN is not in range

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Also getting
Printing Paused Heater 1 fault: temperature rising too slowly
Warning: VIN under-voltage event (4.6V)

My Steps:

  • changing power supply didn't work
  • changing hotend didn't work
  • I checked the main-pcb and found a wire was burned

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ChatGPT:

The error message "Attempt to move motors when VIN is not in range" typically means that the printer's firmware has detected that the input voltage (VIN) is outside the acceptable range, and as a result, it prevents the motors from moving to protect the system from potential damage. This is a safety feature that helps avoid issues like motor malfunction or overheating, which can occur when the voltage is unstable or insufficient.

Here are some steps you can take to troubleshoot this issue:

1. Check the Power Supply

  • Verify that the power supply is delivering the correct voltage (typically 5V or as specified by your printer's specifications).
  • Use a multimeter to check if the output voltage from the power supply is stable and within range.

2. Inspect the Power Connections

  • Ensure all power cables are securely connected to the printer and the power supply.
  • Look for any frayed wires, loose connections, or damaged connectors that could be causing a drop in voltage.

3. Test with a Different Power Adapter

  • If possible, try using a different power adapter with the same specifications (voltage and current rating) to rule out a defective power supply.

4. Check the Power Source

  • If you're using a power strip, surge protector, or other intermediaries between the wall outlet and the printer, try plugging the printer directly into a wall outlet to rule out any issues with the intermediary device.

5. Review Printer Firmware Settings

  • In some cases, incorrect firmware settings could also trigger this error. If you're able to access the printer's firmware, check any power-related settings to ensure they are correct.

6. Monitor for Power Fluctuations

  • If you notice the voltage dipping under load (such as when the motors try to move), it could be an indication that the power supply is inadequate for the printer’s needs.

If none of these steps resolve the issue, the problem might lie with the printer's power circuitry or internal components. In that case, contacting the printer's support team for further diagnostics would be the next step.

Supporting Documentation

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