HAT553V ATS Controller User Manual Page 23 of 32
10.2.2
AUTO TRANS./NON RESTORE (ACTIVE FOR MUTUAL BACKUP)
When Auto Trans./Non Restore is set, and Mutual Backup is active, A power is master. If A power is
normal, then A power closes; if A power is abnormal, B power is normal, then A power opens, and B
power closes; If A power recovers normal, B power is normal, then switch keeps at B power close
status.
Fig. 3 Auto Trans./None Restore (Active for Mutual Backup) Flow Chart
