Product Manual

Troubleshooting
50 900-0161-01-01 Rev B
Table 5 Troubleshooting
Symptom Possible Cause Possible Remedy
Advanced
Generator Start
(
AGS
) fails to
activate when
conditions are met
(or starts when
conditions are not
met).
System display only:
AGS
function does not work if
another valid input is present.
Check both inputs for a second AC source (utility grid). If the
inverter detects an acceptable AC source, it will not allow
AGS
. This is true even if it is internally disconnected from the
source (due to
HBX
mode,
Mini Grid
mode, or similar
programming).
System display is not present. AGS
programming is located in the system display and
cannot function if the system display is removed.
Other
A
UX
functions are in
operation.
Gen Alert
or another
A
UX
function may try to start or stop the
generator using the wrong criteria. Make sure all other
A
UX
functions are disabled.
AGS
or
Gen Alert
functions start the
generator, but the
inverter does not
accept the power
and shuts off the
generator again.
The inverter’s
G
RID
input is in
use and the input priority is
set to
GRID
.
If the input priority is set to
GRI
D
and the
G
RID
terminals are
energized, an automatically controlled generator will shut
down. This could indicate that the generator has been wired
to the
G
RID
input, or it could indicate that another AC source
is active on the
G
RID
input while the generator is using the
G
EN
input. The
G
EN
input must be the only terminals in use
when automatically controlling a generator.
Either the
G
RID
or
G
EN
input can be used when
manually
controlling a generator.
Module Select
The GS8048A uses two high-frequency H-Bridge FET modules. The dual design allows half the
inverter to shut down for lower idle consumption. Normally this is automatically selected. If one
module fails or if troubleshooting is otherwise needed, the module selection can be performed
manually. The GS8048A can be directed to use a single, specified module (left or right), or it
can be directed to turn on both modules continuously. This procedure should only be performed
if directed by OutBack Technical Support.
Although the GS4048A has only a single module, this command is still available. The default
setting is
Left
, which is the location of the module. Do not change this setting in the GS4048A.
The Module Select menu options are displayed as part of Table 17, which begins on page 63.