Muting Discrepancy Error - Muting Group 2
Beckhoff · TwinSAFE Logic FB
What does FB MUTING Bit 2 mean?
A discrepancy has been detected in muting input group 2 (e.g., MuteIn3/MuteIn4) within the FB MUTING function block. This means the redundant muting sensors are not switching synchronously or are reporting different states, which can compromise the safe muting function, potentially leading to an unsafe bypass of a safety device. This triggers a safety stop.
Complete Troubleshooting Guide
- 1
Inspect the physical alignment, cleanliness, and functionality of muting sensors for group 2 (e.g., light barriers).
- 2
Check the wiring integrity for muting input group 2, ensuring both channels are correctly connected, free from damage, and properly shielded.
- 3
Review the discrepancy time parameter for muting input group 2 in the FB MUTING configuration; adjust if needed based on application requirements.
- 4
Observe the muting sensors' behavior during a muting sequence to identify inconsistencies in their detection.