OnLine Power Power Wave 1 - Manual (Page 10)

6005-085 Rev B
9
Fig.1. Block diagram
Efficiency Optimizer function
The Efficiency Optimizer Function is a new feature of your UPS that adds cost effectiveness, provides
minimal power loss and reduced power consumption. Alternating between bypass and on-line modes is
achieved automatically and in accordance with the conditions of the utility power. In order to obtain
greatest efficiency, on-line mode may function during times of intermittent utility power availability and
bypass mode when power flows smoothly. Irregularities can be detected in less than a second, and
on-line mode reactivated immediately. Switching back to online mode occurs when the input voltage
exceeds ±10% of nominal (±15% selectable), when the input frequency exceeds ±3Hz of nominal or when
no input line voltage is detected.
An available option allows default operation in the on-line mode. Bypass can be activated from the LCD
panel, though on-line mode can be run permanently if preferred.
Free Run Mode
The UPS operates in free run mode when the input frequency is outside of the selected input frequency
range. In free run mode the output frequency does not match input frequency. When starting the UPS, the
frequency regulation detected is 50 or 60 Hz ±0.25Hz.
Diagnostic tests
When you start the UPS, a diagnostic test is automatically executed that checks the electronics and
battery and reports any faults on the LCD display.
An advanced battery management system always monitors the conditions of the batteries and sends a
warning if replacement is needed. Otherwise every 30 days of normal mode operation, a battery
discharge test is automatically performed and any faults are reported on the LCD display.
Diagnostic tests can be performed manually from the front panel at any time except during the first
24-hours after startup while the UPS is in the charging mode.