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1600EP Series Instruction Manual
Operating Keys
Refer to this illustration for all UPS front panel operating procedures.
Key Functional Description
Press and hold this key while pressing one of the other keys to execute the function
marked above the upper line of the key. Pressing this key alone enters the mode
set on the internal data setting LCD screen (see page 33).
Scrolls the display upward or with shift key resets the display.
Scrolls the display downward or with shift key cancels the preceding operation.
Press and hold this key to view the Data Display screens (see page 31). Continue to
press this key to access the Data Setting screens (see page 33).
Runs the UPS or with shift key silences the trouble indicator audio alarm.
Stops the UPS and switches to bypass mode.
Light Emitting Diodes (LED)
The following table describes the various LED behaviors and the system indications they provide.
LED Behavior Signicance/Meaning
Lights in green (Run) Normal UPS (inverter) in operation
Flashes in green UPS output off
Lights in red UPS failure (no output)
LED OFF (Stop) Bypass operation on (inverter off)
Lights in green (Run) Normal UPS input AC voltage
Flashes in green UPS input AC overvoltage
LED off (Stop) UPS input AC undervoltage (power failure)
Lights in amber Warning
Flashes in amber Warning
LED off (Stop) Normal UPS (Inverter) in operation
Lights in green Schedule/timer setting
Flashes in green
Execution notice of reserved operation (5 mins. in
advance)
LED offF No schedule/timer setting
Run
Stop
Shift
Select
Set
Monitor
Reset
Cancel
AC Input
Alarm
Timer
On-Line/
Fault