Introduction

The "Driver Short to Ground" error message indicates a potential issue with the motor drivers or their connections. This guide provides a step-by-step process to diagnose and resolve the problem.

Initial Checks

1. Firmware Updates:
   • Ensure that the firmware is up-to-date, as updates may address known issues.
2. Visual Inspection:

Secure Connections: Ensure all electrical connections are secure using a PH2 screwdriver. Loose connections can cause intermittent issues.

• Wiring: Inspect all wiring for correct connections, potential shorts, loose wires, or damage.
• Motor Wires and Plugs: Check connections where wires enter the motor and the control board.
• Ribbon Cable: Examine the ribbon cable between the Duet 2 and DueX5 boards.
• 24V Wires: Ensure they are securely connected to the screw terminals of both boards.
• 5V PSU Wires: Verify that these wires are also securely connected and the terminal block screws are tight.
• 24V PSU Wires: Verify that these wires are also securely connected and the terminal block screws are tight.

Isolating the Problem

If the initial checks do not resolve the issue, follow these steps to isolate the problem:

1. Test Each Axis Individually

• Procedure:
  • Go to the web interface, navigate to Dashboard > Macros > System, and select "Allow Movement Without Homing."
  • Move each axis separately (X, Y, U, Z, and both extruders) to identify which axis is causing the error.
• Testing Extruders:
  • Select the tool (left or right) to move, preheat it to the filament's temperature, and manually retract and extrude the filament using Extrude an Retract buttons.

2. Analyzing Error Messages

• Console Analysis:
  • Check the console for error messages and determine which driver is reporting the problem:

    Driver	Axis
    0	LHS Y Axis Motor
    1	X Axis Motor (Tool 0)
    2	Unused
    3	Extruder Left Tool (Tool 0)
    4	Extruder Right Tool (Tool 1)
    5	Z Axis Motor
    6	Z Axis Motor
    7	Z Axis Motor
    8	U Axis Motor (Tool 1)
    9	RHS Y Axis Motor

• Mainboard vs. Expansion Board:
  • Drivers 0 to 4: Issues with motors driven from the mainboard.
  • Drivers 5 to 9: Issues with motors connected to the expansion board.

Do Not Attempt: Do not attempt to disconnect or connect wires when the machine is powered ON. This can damage the electronics and pose a safety risk.

If One Driver Reports the Error

1. Board Test

1. Isolate Components:
   • Motor: Could be faulty.
   • Motor Cable: Could be damaged.
   • Motor Driver: Could be faulty.
2. Testing:
   • Power Off: Remove the power cord to turn off the machine.
   • Disconnect Motor Wire: Unplug the motor wire from the mainboard.
   • Power On: Reconnect the power and try to move the axis via the web interface.
3. Interpretation:
   • Same Error: Indicates a potential fault with the mainboard.
   • No Error: Indicates a problem with the motor or motor wire.

2. Motor & Wire Test

1. Isolate Components:
   • Reconnect Motor Connector: Power off the machine and reconnect the motor wire.
   • Unplug Motor: Disconnect the wire from the motor itself.
2. Testing:
   • Power Off: Remove the power cord to turn off the machine.
   • Disconnect Motor Wire: Unplug the motor wire from the mainboard.
   • Power On: Reconnect the power and try to move the axis via the web interface.
3. Interpretation:
   • Error Persists: Indicates an issue with the wire.
   • Error Gone: Indicates a problem with the motor.

If More Than One Driver Reports the Error

Inspect Carefully:

• Wiring: Inspect all wiring for correct connections, potential shorts, loose wires, or damage.
• Motor Wires and Plugs: Check connections where wires enter the motor and the control board.
• Ribbon Cable: Examine the ribbon cable between the Duet 2 and DueX5 boards.
• 24V Wires: Ensure they are securely connected to the screw terminals of both boards.
• 5V PSU Wires: Verify that these wires are also securely connected and the terminal block screws are tight.
• 24V PSU Wires: Verify that these wires are also securely connected and the terminal block screws are tight.

Conclusion

By following this guide, you can systematically diagnose and resolve the "Driver Short to Ground" error. If the problem persists after these troubleshooting steps, contact support@visionminer.com for further assistance.