E-Stop Discrepancy Error - Group 2 (Safe Inputs Active)
Beckhoff · TwinSAFE Logic FB
What does FB ESTOP Bit 9 mean?
This fault indicates a discrepancy in E-Stop input group 2, similar to 'FB ESTOP Bit 1', but specifically when the 'Safe Inputs after Disc Error' option is activated. This means that even after a discrepancy, the FB attempts to maintain a safe state for the inputs, but a persistent or critical discrepancy has occurred, preventing normal operation and requiring intervention.
Complete Troubleshooting Guide
- 1
Follow the troubleshooting steps for 'E-Stop Discrepancy Error - Input Group 2' (FB ESTOP Bit 1) to resolve the underlying discrepancy.
- 2
Review the configuration of the 'Safe Inputs after Disc Error' option for E-Stop input group 2; confirm its intent and parameters.
- 3
Ensure that the logic handling the safe state after discrepancy is correctly implemented and that the underlying input issue is fully resolved and acknowledged.
- 4
Verify that the E-Stop device and its redundant channels are functioning perfectly to avoid recurring discrepancies with this option enabled.