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Operation
900-0020-01-00 Rev A 31
Source Status
enables the AUX output whenever the inverter accepts an AC source. It can activate a light or
alarm to show that the utility grid is present or that a generator has started. Alternately, it could be used to
show that the source has disconnected.
This function does not have settable parameters.
AC Divert
enables the AUX output to divert excess renewable energy to an AC load, usually an AC device
powered by the inverter itself. When battery voltage rises above a settable high voltage level, the AUX
output is activated after a settable delay. The AUX output controls a larger relay, which allows current to flow
from the batteries to a dedicated AC load when energized. Diversion is activated by high DC voltage
following a delay. This function is usually used to regulate battery charging. The AC device is usually wired
to the output or load panel and must be left on. It must be sized to dissipate all of the energy from the
renewable source if necessary. Diversion will turn off following a delay when a low DC voltage setting is
reached.
The AUX output will automatically turn on to run the loads if the inverter accepts an AC source.
Parameters include:
Low and high DC voltage
On and off delay
During variable conditions, the AUX output is triggered no more than once per minute (if voltage conditions
are still met). This prevents rapid nuisance cycling of the AC load in the event of rapidly changing
conditions.
AC Divert should not be used as the sole source of battery regulation. If the inverter shuts down or fails, the
batteries could suffer severe damage. This function should be supported by an external regulator.
If the inverter shuts down due to overload, the AUX output will also shut down. If the inverter load
exceeds 30 Aac, the AUX output will turn off to prevent an overload condition.
If either the FETs or the capacitors (see page 40) become too hot, the AUX will turn off due to
diminished inverter wattage capacity.
Note that even if every function in the menu is set to
Off
, the AUX output may still be triggered by an
external function such as AGS (see page 32).