6.1.8 AVR operation mode (AUTOMATIC VOLTAGE REGULATION)
✓ The device is in standard operating mode (6.1.2).
If the supply voltage increases over a
defined threshold, the UPS switches to
buck mode (BUCK) so that the loads are
protected against high voltage.
If the supply voltage falls below a defined
threshold, the UPS switches to boost mode
(BOOST) so that the loads are protected
against voltage that is too low.
This regulation by the supply is not signaled
acoustically.
If the supply voltage is again within the tolerance range, the return to standard
operating mode occurs seamlessly.
6.1.9 Fault mode of the UPS
✓ The device can be in any mode.
If an error or a massive overload of the
UPS is present, the device switches to fault
mode. The UPS output is then switched off
and an error code is shown in the lower
right-hand corner. Please see all messages
or error codes for the device under 8
Messages and error codes.
The error code is supported by a continu-
ous acoustic signal.
A return from the fault mode is not conducted automatically. At this point, it is
necessary to switch the UPS on or off. This, however, can only happen if the er-
ror source that occurred is first eliminated.
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