Tool change fault: Tool arm does not go back to home position

What does Tool change Case 2 mean?

During a tool change, the tool arm fails to return to its home position, which can disrupt subsequent operations.

• Issues with PLC output signals related to the tool arm positions
• Issues with PPU input signals related to the tool arm positions
• Interference to turret signal reception/transmission (e.g., unstable voltage, contactor arc)

Click steps to track your progress.

1. 1

   Check the PLC output signals that are related to the tool arm's positions.

2. 2

   Check the PPU input signals that are related to the tool arm's positions.

3. 3

   Investigate whether the PLC control action is influenced by interference to the turret signal reception/transmission, such as unstable voltage fluctuation or contactor arc.