E-Stop Discrepancy Error - Input Group 1
Beckhoff · TwinSAFE Logic FB
What does FB ESTOP Bit 0 mean?
A discrepancy has been detected between the two channels of input group 1 for the FB ESTOP. This indicates that the redundant E-Stop input signals are not in agreement, suggesting a potential failure of one channel, a wiring issue, or an incorrect switching sequence. This will prevent the E-Stop function from operating safely and halt the machine.
Complete Troubleshooting Guide
- 1
Inspect the wiring of E-Stop input group 1, ensuring both channels are correctly connected, free from damage, and properly shielded.
- 2
Verify the functionality of the E-Stop device connected to input group 1, checking both contact sets for reliable operation.
- 3
Review the discrepancy time parameter for E-Stop input group 1 in the FB ESTOP configuration; adjust if the application legitimately has different timing requirements.
- 4
Monitor the individual input channels for group 1 in real-time using diagnostics to identify which channel is deviating or delayed.