6
Segment Voltage US Not Present
Phoenix Contact · ib il safe 2-eco
What does 6 mean?
The segment voltage US is not supplied to the device, even though sensor circuits 1 and 2 are active and the reset/start circuit is activated. This critical condition prevents proper internal device operation and indicates a power supply issue to the US segment. Functional safety cannot be ensured without the segment voltage US.
Common Causes
- Upstream cascaded module is not forwarding the segment voltage US
- External fuse supplying the segment voltage US has blown
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the segment voltage US directly to confirm its presence and correct level
Verified technical data. Last updated: March 2026
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Source: Phoenix Contact ib il safe 2-eco