Operating Mode - ABB Conceptpower DPA 500 Operating Manual

6.4.8

Operating mode

6.4.8.1 Online mode (Inverter mode)
The Online mode is the UPS operating mode in which the load is supplied through the rectifier and
the inverter.
The Online mode provides the highest degree of protection, especially in the event of a mains
disturbance or failure.
This operating mode is always recommended if the critical loads will not tolerate any interruption of
the supply (not even the shortest).
In the unlikely event of an inverter fault or overload condition the UPS will transfer the load
automatically and without interruption to the static bypass-mains supply (transfer time = 0ms).
6.4.8.2 Xtra VFI operating mode
Xtra VFI is a complementary operating mode to the online mode. Please refer to the
description.
6.4.8.3 Eco mode (Offline or bypass mode)
In Eco mode, the load is supplied from the mains through the static bypass.
Modifications reserved
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Figure 21: Online mode on Mimic Diagram
Figure 22: Eco mode on Mimic Diagram
Appendix A for full