Samlexpower PST-1500-12 Owner's Manual - Section 10 |
42 | SAMLEX AMERICA INC.
(the drop is proportional to the load impedance). Surge Power of 175% for PST-2000
and200%forPST-1500will,thus,beprovidedfor<8mseveryhalfcycle.Ifthissituation
continues for 2 to 2.5 sec, Overload Condition is activated.
Overload Condition: If there is a continuous overload of 110% to 115% for 2 to 2.5 sec,
theoutputvoltagewillbeshutdown.RedLEDmarked“OVERLOAD”(3,Fig6.1)willturn
ON,theGreenindicationlightontheGFCIoutletwillbeOFFandbuzzeralarmwillsound.
TheGreenLEDmarked“POWER”(2,Fig6.1)willcontinuetobelighted.Theunitwillbe
latched in this shut down condition and will require manual reset. To reset, switch Off the
unitusingtheON/OFFSwitch(1,Fig6.1),waitfor3minutesandthenswitchONtheunit
again. Before switching ON, determine and remove the cause of overloading.
Short Circuit Condition: Short circuit condition will be detected when the AC output
voltage drops to 80VAC or lower over a period of around 1 to 1.5 sec. The AC output
voltage will be shut down thereafter.
RedLEDmarked“OVERLOAD”(3,Fig6.1)willturnON,theGreenindicationlight
ontheGFCIoutletwillbeOFFandbuzzeralarmwillsound.TheGreenLEDmarked
“POWER”(2,Fig6.1)willcontinuetobelighted.Theunitwillbelatchedinthisshut
down condition and will require manual reset. To reset, switch Off the unit using the
ON/OFFSwitch(1,Fig6.1),waitfor3minutesandthenswitchONtheunitagain.Before
switching ON, determine and remove the cause of short circuit.
10.2 WARNING ALARM - LOW DC INPUT VOLTAGE
ThevoltageattheDCinputterminalswillbelowerthanthevoltageatthebattery
terminals due to voltage drop in the battery wires and connectors. The drop in the
voltageattheDCinputterminalsoftheinvertercouldbeduetolowerbatteryvoltage
orduetoabnormallyhighdropinthebatterywiresifthewiresarenotthickenough
(Please see Section 8.4.3 “Connection from Batteries to the DC Input Side – Sizing of
Cables and Fuses”).IfthevoltageattheDCinputterminalsdropsto10.7V±0.1Vor
lowerforPST-1500-12/PST-2000-12orto21.4V±0.2VorlowerforPST-1500-24/PST-
2000-24,abuzzeralarmwillbesounded.TheGreenLEDmarked"POWER"(2,Fig6.1)
andindicationlightontheGFCIwillcontinuetobelightedandtheACoutputvoltage
would continue to be available. This warning buzzer alarm indicates that the battery
is running low and that the inverter will be shut down after sometime if the voltage at
theinverterterminalsfurtherdropsto10V±0.1VorlowerforPST-1500-12/PST-2000-12
or,to20V±0.2VorlowerforPST-1500-24/PST-2000-24.
10.3 LOW DC INPUT VOLTAGE SHUT DOWN
IfthevoltageattheDCinputterminalsdropsto10V±0.1VorlowerforPST-1500-12/
PST-2000-12orto20V±0.2VorlowerforPST-1500-24/PST-2000-24,theACoutputis
shutdown.Buzzeralarmissounded.TheGreenLEDmarked"POWER" (2,Fig6.1)will
remainlighted.TheGreenindicationlightontheGFCIwillbeOFF.
TheunitwillresetautomaticallywhentheDCinputvoltagerisesto11.5V±0.3Vorhigh-
erforPST-1500-12/PST-2000-12orto23V±0.5VorhigherforPST-1500-24/PST-2000-24.