Samlexpower PST-60S-48E, Owner'S Manual

Page: 44 / 48

44 | SAMLEX AMERICA INC.
SECTION 11 | Troubleshooting Guide
ISSUE POSSIBLE CAUSE REMEDY
There is no AC output. The
Green LED marked "POWER"
(2, FIG 6.1) is lighted. Buzzer
is ON. • Shut-down due to high
input DC voltage
• DC input voltage is 64.0
VDC or higher
• Check that the voltage at the DC input
terminals is less than 64.0 VDC
• Ensure that the maximum charging voltage
of the battery charger / alternator / solar
charge controller is below 64.0 VDC
• Ensure that an unregulated solar panel /
array is not used to charge a battery. Under
cold ambient temperatures, the output of
48V nominal solar panel / array may reach
> 88 VDC. Ensure that a charge controller
is used between the solar panel and the
battery.
AC output shuts down
completely. Red LED marked
"OVERLOAD" (3, Fig 6.1) is
lighted. Buzzer is ON. The
Green LED marked "POWER"
(2, Fig 6.1) is lighted. Permanent shut-down
of the AC output due to
continuous overload >
110% - 115% for 2 to 3
sec or due to short circuit
on the AC load circuit. (AC
output voltage is 160 VAC
or less for 1 to 1.5 sec) • Reduce the load / remove the short circuit
• The load is not suitable as it requires higher
power to operate. Use an inverter with
higher power rating.
• If the unit goes into permanent overload
again after resetting and removing the load
completely, the unit has become defective.
Call Technical support.
NOTE: The unit will be latched in this shut-
down condition and will require manual reset.
To reset, switch OFF the power ON/OFF switch
(1, Fig 6.1), wait for 3 minutes and then switch
ON again.
Before switching ON again, remove the cause
of the shut-down.
There is no AC output. Buzzer
alarm is sounded. Red LED
marked "OVER TEMP" (4, Fig
6.1) is lighted. The Green LED
marked "POWER" (2, Fig
6.1) is lighted. Shut-down due to over
temperature because of
fan failure or inadequate
cooling as a result of high
ambient temperature or
insufficient air exchange
• Internal hot spot is at 90
± 5 ° C or higher
Check that the fan is working. If not, the fan
control circuit may be defective. Call
Technical Support.
If the fan is working, check that the ventilation
slots on the suction side and the openings
on the discharge side of the fan are not
obstructed.
If the fan is working and the openings are not
obstructed, check that enough cool replace-
ment air is available. Also check that the ambi-
ent air temperature is less than 40ºC.
Reduce the load to reduce the heating effect.
After the cause of overheating is removed and
the internal hot spot cools down to 65
± 5 ° C,
the AC output will be restored automatically.