HAT828 High Speed ATS Controller User Manual Page 45 of 56
11.3
AUTOMATIC OPERATION
11.3.1
ILLUSTRATION
Auto mode is selected by pressing the
key; a LED beside it will illuminate to confirm the
operation.
Under auto mode, the controller will transfer automatically to ensure power supply according to
S1, S2 status, transfer priority and auto transfer/restore status.
NOTE:
During the process, if close failure or close inhibit occurs, the corresponding switch will not execute close
actions, and other closed switch will supply power.
11.3.2
AUTO TRANSFER AUTO RESTORE
When set as “Auto Transfer/Restore”, S1 master run, if S1 is normal, S1 will close; if S1 is
abnormal, S2 is normal, S2 will close; if S1 returns normal, S1 will close.
Fig.4 – Auto Transfer/Restore Flowchart
