Error description 231-E028

Error message

E028 CC%2 MB/PLB does not respond. Device ID: %3

Cause of error

- HSCI components with functional safety (FS) no longer responds (B channel): MB machine operating panel or PLB 6xxx
- Component was separated during operation with the HSCI bus
- 24 V NC power supply of the component was interrupted
- The entered device ID provides information on the affected parameter:
5 = System module on PLB 62xx FS
7 = MB 6xx FS
15 = Expansion PLB (without system module) PLB 61xx FS, PLB 60xx FS
17 = Integrated PLB of the UEC controller unit
- Faulty firmware of the PLB or the MB

Error correction

- Check the MB and PLB in the HSCI bus diagnosis
- Save service files
- Check the HSCI connections
- Check the 24 V power supply of the MB and the PLB
- Inform your service agency