Operation, Operating Modes, Normal ON-LINE Mode

CAUTION

When the UPS is in Normal On-line mode, pressing the BYPASS button once will put the UPS into BYPASS MODE. During this time, should the utility power become unavailable, the UPS will shut down.

Once the unit is in BYPASS MODE operation, pressing this button again will force UPS back to On-line operation.

5.0 OPERATION

OPERATING MODES

The display shows the UPS status through the graph LCD for each mode.

NORMAL ON-LINE MODE

During normal on-line operation, utility power provides energy to the UPS. The filters, power factor corrector and the inverter process the power to provide computer grade power to connected loads. The UPS maintains the batteries in a fully charged state.

All indicators are stable except Alarm Buzzer. The LCD displays the % of load, Inverter, PFC, Line, Charger and Battery. The Fan is at medium speed.

The Solid line shows the power flow from input to load and battery. The load is being powered from the UPS inverter.

BATTERY MODE

Battery mode is displayed during high input voltage conditions or a utility power failure. When in battery mode, the UPS battery supplies energy through the DC to DC converter to the Inverter to power the connected load. During the battery discharging, the audible alarm beeps. The rate of the beeping will increase as the battery runs low (low battery), prior to UPS shut down. Once this warning is sounded, you have less than a minute of battery runtime left. When utility power has been restored, after UPS has shutdown, the UPS will automatically restart. For approximate battery run times, refer to the Battery Run Time charts in this manual. The run-time is based on a resistive load and an ambient temperature of 77oF (25oC)

The Display shows the UPS in BATTERY MODE. The solid line is from battery to inverter with boost illuminated. The Fan high speed mode is illuminated. The bars, in the battery display indicate the amount of battery capacity remaining; each bar represents a 25% capacity level. As capacity decreases, fewer bars remain illuminated. When the input voltage returns, the charger indicator will illuminate.