HAT553V ATS Controller User Manual Page 21 of 32
10
SWITCH OPERATION RUNNING
10.1
MANUAL OPERATION RUNNING
Press manual/auto transfer key
, and manual status indicator is illuminated; Controller is in manual
status.
After the switch transfer key is pressed, switch transfers immediately; In the process of transferring, the
related indicator flashes; When the switch is transferred to the position, the related indicator is
illuminated always.
Table 20 Manual Transfer Key
Icon
Key Name
Function Description
A Power Close
Press and if load is in open status, A power closes, and load is
supplied by A power.
B Power Close
Press and if load is in open status, B power closes, and load is
supplied by B power.
Open Key
Press and load is disconnected.
10.2
AUTO OPERATION RUNNING
Press manual/auto transfer key
, and auto status indicator is illuminated; Controller is in auto
status.
In auto mode, controller will transfer switch based on the status of A power and B power, transfer
priority and auto trans./restore status to ensure supply for load. The following illustrates control logics
by the example of "A power master" and "A Mains B Gen".
