Samlex America PST-200S-24E - Manual (Page 41)

40 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 41
seCtIOn 11 | trouble shooting Guide
iSSUe PoSSiBLe cAUSe ReMeDY
When switched ON, GREEN
LED “Power” (2) does not
light. Buzzer is Off. There is
no AC output voltage. There is no voltage at the
DC input terminals. Check the continuity of the battery
input circuit.
Check that the external battery fuse is intact.
Replace if blown.
Check that all connections in the battery input
circuit are tight.
Polarity of the DC input
voltage has been reversed
that has blown the exter-
nal / internal DC side fuses
(Note: Reverse polarity
may cause permanent
damage). Check external and internal fuses. Internal
fuses may be soldered and may not be easily
replaceable. Replace fuses. If unit does not
work, call Technical Support for repair.
Low AC output voltage
(No buzzer alarm). Low input voltage at the
inverter terminals and the
load is close to the maxi-
mum allowable power. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of battery input circuit.
Reduce load.
Buzzer alarm is sounded when
load is switched ON. Voltage
at DC input terminals reads
between 10 to 10.7V for 12V
versions and between 20 to
21.4V for 24V versions. GREEN
LED “POWER” (2) is ON. AC
output voltage is available. DC input voltage is less
than 10.7V for 12V ver-
sions and less than 21.4V
for 24V versions. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of the battery input circuit.
Buzzer alarm is sounded
when load is switched ON.
Voltage at the DC input
terminals reads below 10V for
12V versions and below 20V
for 24V versions. GREEN LED
“POWER” (2) is Off. There is
no AC output. Shut-down due to low
DC input voltage - Less
than 10V for 12V versions
and less than 20V for 24V
versions. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of the battery input circuit.
There is no AC output.
GREEN LED “POWER” (2) is
Off. Buzzer is ON. Shut-down due to high
input DC voltage –
> 16.5V for 12V versions
and > 33V for 24V ver-
sions. Check that the voltage at the DC input termi-
nals is less than 16.5V for 12V versions and less
than 33V for 24V versions.
Ensure that the maximum charging voltage of
the battery charger / alternator / solar charge
controller is below 16.5V for 12V versions and
below 33V for 24V versions.
Ensure that an unregulated solar panel is not
used to charge a battery. Under cold ambient
temperatures, the output of the solar panel
may exceed 22V for 12V system or 42V for
24 V system. Ensure that a charge controller is
used between the solar panel and the battery.