Message 1 Message 2 Message 3 Definition
Load on inverter Output overload /
This system is in warning operating mode, supplied by
the inverter, and the system is in overload. This means
the system will go off inverter at some point.
Load on inverter Alarm active – Warning View alarm log for details
This system is in warning operating mode, supplied by
the inverter, and has an active warning. This means the
system is operating, but something was detected to be
outside of normal.
Load on bypass
Load manually transferred to
bypass
Load unprotected
This system is in warning operating mode, supplied by
the bypass. The user transferred the load to the bypass
so the system cannot protect itself from source
variations.
Load on battery X minutes remaining /
This system is in warning operating mode, supplied by
the inverter via the battery. There are X minutes of
calculated run time remaining. This is used before the
battery low voltage warnings are generated.
Load on bypass Alarm active – Warning View alarm log for details
This system is in warning operating mode, supplied by
the bypass, and has an active warning. This means the
system is operating after a transfer to bypass and
something was determined to be outside normal range.
Load on inverter Energy saving mode active Alarm active – Warning
This system is in warning operating mode, supplied by
the inverter, one of the energy saving modes is active,
and has an active warning. This means the system is
operating, but something was determined to be outside
normal range.
Load on bypass Energy saving mode active Alarm active – Warning
This system is in warning operating mode, supplied by
the bypass, one of the energy saving modes is active,
and has an active warning. This means the system is
operating, but something was determined to be outside
normal range.
Load off Energy saving mode active Alarm active – Warning
This system is in warning operating mode, load off, one
of the energy saving modes is active, and has an active
warning. This means the system is operating, but
something was determined to be outside normal range.
Load on inverter Test mode active Alarm active – Warning
This system is in warning operating mode, supplied by
the inverter, running in a system test mode, and has an
active warning. This means the system is in TEST
MODE, and something was determined to be outside
normal test operations.
Table 5.2 Warning Status Messages
90 Proprietary and Confidential ©2023 Vertiv Group Corp.
5 Operator Control and Display
Panel
Vertiv™ Liebert® APM2 30 to 120 kVA Modular UPS User Manual
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