PLC Detection Error 2
Yaskawa · P1000 AC Drive
What does PE2 mean?
The drive has detected an error related to its internal PLC functionality or communication, specifically PLC Detection Error 2. This affects programmed logic execution.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify the integrity and configuration of the internal PLC program (User Logic) and associated parameters (e.g., U1-xx, U2-xx) against the latest backup.
- 2
Inspect all external control wiring connected to the drive's digital and analog I/O for loose connections, damage, or short circuits that might influence PLC logic.
- 3
Cycle power to the drive or perform a software reset of the User Logic (PLC) functionality to clear any transient internal execution errors.
- 4
Review the drive's alarm history and diagnostic registers (e.g., R-xx parameters) for any secondary fault codes or status indicators providing further insight into the PE2 trigger.