Press Unexpectedly Stopped After Starting
Beckhoff · TwinSAFE Logic FB
What does 0x4020 mean?
The PressStarted input was TRUE, indicating a commanded motion, but the position subsequently stopped ('Stopped' changed to TRUE) after having moved. This suggests an unexpected halt during a commanded press operation, which could be due to an obstruction, overload, or sensor fault, potentially damaging equipment or causing an unsafe state.
Complete Troubleshooting Guide
- 1
Investigate the mechanical system for any sudden jams, obstructions, or excessive load that might cause an unexpected stop.
- 2
Monitor motor current and drive status for overload conditions or protection trips.
- 3
Check the position sensor for intermittent readings or damage that could falsely indicate a stop.
- 4
Review the process logic for any conditions that might prematurely set the 'Stopped' flag to TRUE during an active PressStarted command.