26
Auto-restart Mode
The battery may become exhausted following an extended AC mains failure. The inverter shuts down when
the battery reaches the End of Discharge Voltage (EOD). The UPS may be programmed to “System Auto Start
Mode after EOD”. The system starts after a delay time when the AC mains input recovers. The mode and the
delay time are programmed by the commissioning engineer.
Frequency Converter Mode
By setting the UPS to Frequency Converter mode, the UPS could present a stable output of fixed frequency
(50 or 60Hz), and the bypass static switch is not available.
Self Aging Mode
If users want to burn in UPS without load, could set the UPS as Self Aging Mode, in this mode, the current
flow through rectifier, inverter, and back to input through bypass. It needs only 5% loss to burn in UPS with 100%
load.
Fig.3-7 self aging operation diagram
3.2 System Block Diagram
The system block diagram of EA990G5 10-30kVA is shown as Fig.3-8.
Fig.3-8
System Block Diagram
