Operation
900-0167-01-00 Rev A
51
Settable
Gen Alert
parameters include:
Low and high DC voltage
On and off delay
Gen Alert
control logic is located in the inverter. It has the advantage of functioning when the system
display is removed. However, it may not completely charge the batteries and does not have all the
advantages of the Advanced Generator Start (
AGS
) function that is found in the system display. For
many users, the
AGS
function may prove more useful than
Gen Alert
.
Gen Alert
, however, could be
used as a literal “Generator Alert”, a signal to the user to manually start a generator.
Fault
activates the AUX output when the inverter shuts down due to an error condition. (See page 62). It
can activate a light or alarm to show that the inverter has failed. With the appropriate devices, it could send
an alarm signal through a radio, pager, or telephone dialer.
This function does not have settable parameters.
Vent Fan
activates the AUX output in response to a high DC (battery) voltage set point. It can run a small
fan to ventilate the battery compartment to eliminate gases that result from battery charging. (This is
illustrated in the
FXR Series Inverter/Charger Installation Manual.
) When the voltage falls below this set point
for a settable delay period, the AUX output turns off. This is the default selection.
Settable parameters include:
High DC voltage
Off delay
Cool Fan
activates the AUX output when the inverter reaches a high internal temperature. It is intended to
trigger a small external fan for additional cooling. See the Warning Troubleshooting table on page 63 for a
description of the fan criteria.
This function does not have settable parameters.
DC Divert
activates the AUX output to divert (or “dump”) excess renewable energy to a DC load, such as a
resistor, a heater, or a fuel cell. This prevents overcharging of the batteries. This function can serve as rough
charge regulation for an external charging source.
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, external relay. When energized, the relay allows current
to flow from the batteries to a dedicated DC load. (This is illustrated in the
FXR Series Inverter/Charger
Installation Manual
.) The resistor or load 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.
Settable parameters include:
Low and high DC voltage
On and off delay
GT Limits
activates the AUX output as an alert that the utility grid does not meet Grid Interface Protection
parameters for the grid-interactive function. (See page 20). It can activate a light or alarm to show that the
grid-interactive function has shut down and that there may be problems with the grid. The AUX output will
cycle on and off if grid parameters are met and the reconnection timer is counting down.
This function does not have settable parameters other than those of the
Grid Interface Protection
menu.
Source Status
activates 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
activates the AUX output to divert (or “dump”) excess renewable energy to an AC load, usually an
AC device powered by the inverter itself. This prevents overcharging of the batteries. This function can
serve as rough charge regulation for an external charging source.
