DeltaV Series 2 Redundant I/O > Example switchover situations

Brief loss of field power

A brief loss of field power to the DeltaV system (for example, a few seconds) causes all cards that operate on field power to switch over. (Most cards operate on field power.) To correct this issue:

  1. Reset the cards by removing each card from the carrier and then re-inserting it into its slot.
  2. Open DeltaV Diagnostics (click Start → DeltaV Operator → Diagnostics).
  3. For each card, right-click the card, and then select Clear Saved Fault Information.