ABB Conceptpower DPA 500, Руководство по эксплуатации

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A.1.1.3 Xtra VFI Statuses
Xtra VFI can assume the statuses listed and described in the following table. The current status is shown
on the display on the screen Xtra VFI measures (see Figure 33 in chapter A.3.1.3 ).
Message Meaning
“Disabled” Xtra VFI is disabled (factory default).
“Active” Xtra VFI is active.
“Rotation” Module rotation in progress.
"To standby" One or more modules are changing status from double-conversion into
standby mode.
“Sysmod invalid” The “Total UPS Number” parameter has not been inserted.
“Sysmod wrong” The “Total UPS Number” parameter does not correspond to the quantity
of the UPS modules in the system.
“General alarm” Any alarm on any of the modules generates the general alarm.
"IA2 open” One or more IA2 switch(es) are OPEN.
“Battery test" One or more modules are performing the battery test
A.1.1.4 Standby mode
When the UPS modules go in standby mode they turn off the inverter, in order to reduce the power
consumption. The control logic as well as the rectifier and battery charger remains active. Modules that
are in standby mode need 40-50 ms to return in active mode (double-conversion mode) if the system
requires it.
A.1.1.5 Module rotation
Module rotation allows to keep the aging of the modules more or less balanced over time. The module
rotation will take place automatically, once a week, exactly 24*7 hours after the last time Xtra VFI has
been started (enabled) and it works like this: there is an intelligence that determines how many UPS
modules it is worth swapping. Once this is defined, the system turns ON (change status from Standby
mode to double conversion mode) the defined quantity of UPS modules first; then, once those are in a
steady state, it puts to sleep (Standby mode) the same quantity of the UPS modules which were in
double conversion before.