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4. UPS functions
(1) When BS signal is used to stop the UPS after a power failure occurs
(1)-1.
(2) When BS signal is used to shut down the UPS when AC input is ON
AC input
Power output
(Setting switch 4 OFF:
Mode A)
Power output
(Setting switch 4 ON:
Mode B)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
BS signal
*1
*1
Starts up when BS signal
turns OFF
Starts up when AC input
turns from OFF to ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
1 sec
AC input
Power output
(Setting switch 4 OFF:
Mode A)
Power output
(Setting switch 4 ON:
Mode B)
BS signal
* 1: BS signal reception time corresponds to the setting switch 7.