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Operator Manual
Power Supply Status
▶ LED and Switch Functions
▶ Switch Status
▪ [AC IN]: Turned on upon AC power supply.
▪ [DC OUT]: Turned on upon DC power supply.
▪ [BATT LOW]: Turned on when the battery voltage is 21V or less or when the battery
cable is not connected.
▪ [MAIN S/W]: Supplies or stops AC power.
▪ [STAND-BY S/W]: Turns on/off the system.
▪ [Main S/W] is pressed on "I" position
AC power is being supplied to the power supply unit, and only [AC IN] LED is turned
on.
▪ [Main S/W] is pressed on "O" position
AC power is not supplied to the power supply unit and all status LEDs are turned off.
▪ [POWER S/W] is pressed on "ON" position
The system is turned on and [AC IN] and [DC OUT] LEDs are turned on.
▪ [POWER S/W] is pressed "OFF" position
<System Off> procedure starts and only [AC IN] LED is turned on.
▪ In case power failure occurs during normal system operation, the system will enter
<Power Failure Mode> and only [DC OUT] will be turned off.
© 2012 Nautilus Hyosung Inc. All Rights Reserved.
Chapter3. For the beginning operator
3-7
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