10
8. TROUBLESHOOTING:
A.
There is no load output from the controller
—
If battery voltage is
too low the charge controller will turn off the load outputs. On a 12V
battery system the load will turn off if battery is <11V. On a 24V bat-
tery system the load will turn off at <22V. On a 48V system the load
will turn off at <44V. The load will turn back on automatically when
the battery voltage recovers. See controller user guide for more
detail.
B.
Why is my solar panel voltage so high?
-
Open circuit voltage
on a 12V panel is around 23V, and about 47V on a 24V panel.
With MPPT controllers, the most efficient operation is achieved by
wiring 12V or 24V panels in series. On 24V panels the controller
can only handle two panels in series because four 24V panels in
series would exceed the controller max voltage. So in 4 panel
configurations wire the panels in series/parallel configuration.
C.
My system turns off at night and comes back on in the morn-
ing?
-
This is a sure sign that the solar panels and/or battery ca-
pacity can
’
t support the load. You should measure your actual
load and recalculate to make sure you have adequate capacity.
D.
Can I charge my batteries from AC power?
Tycon offers 600W
and 900W AC/DC battery chargers that can be used in parallel
with the solar controller to charge batteries from AC power from
the grid or a generator. It requires a blocking diode (5600059).
