UPS operations 40
UPS operations
Modes of operation
The UPS has five modes of operation:
• Standby mode (on page 40)
• Operate mode (on page 40)
• Configure mode (on page 41)
• Battery mode (on page 41)
• Auto-Bypass mode (on page 41)
Standby mode
In Standby mode:
• No power is available at the UPS output receptacles.
• The UPS charges the batteries as necessary.
The UPS can be placed in Standby mode when the UPS is in Operate mode (on page 40).
To place the UPS in Standby mode, press and hold the Off button until the audible alarm sounds and the
Utility LED flashes. Power to the load ceases.
When fault conditions occur in Standby mode, the UPS enters Converter Off mode ("UPS is in Converter Off
mode" on page 57).
IMPORTANT: While in Standby mode, the UPS maintains the charge on the batteries, but no
power is available at the output receptacles. The UPS remains in Standby mode until an alternate
mode is selected or until utility power is removed.
For the location of buttons, see "UPS front panel controls (on page 8)."
For the location of LEDs, see "UPS front panel LED indicators (on page 8)."
Operate mode
In Operate mode:
• Power is available at the UPS receptacles.
• The UPS charges the batteries as necessary.
The UPS can be placed in Operate mode if the UPS is powered up and in Standby mode (on page 40).
To place the UPS in Operate mode, press the On button. The Utility LED illuminates, indicating that power is
available at the UPS output receptacles. The UPS acknowledges compliance with a short beep.
If the UPS is off (no LEDs are illuminated), press the On and Battery Start buttons simultaneously to start the
UPS on battery power.
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