54 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 55
10.1.2 Overload: If there is a continuous overload of 110% to 115% for 2 to 3 sec, the
output voltage will be shut down. Red LED marked “OVERLOAD” (3, Fig 6.1) will turn ON,
the Status LED on the GFCI outlet (5C, Fig 6.1) will be OFF and buzzer alarm will sound.
The Green LED marked “POWER ON” (2, Fig 6.1) will continue to be lighted. The unit will
be latched in this shut down condition and will require manual reset. To reset, switch OFF
the unit using the ON/OFF Switch (1, Fig 6.1), wait for 3 minutes and then switch ON the
unit again. Before switching ON, determine and remove the cause of overloading.
10.1.3 Short Circuit: Short circuit condition will be detected when the AC output volt-
age drops to 80VAC or lower over a period of up to 5 sec. The AC output voltage will be
shut down thereafter. Red LED marked “OVERLOAD” (3, Fig 6.1) will turn ON, the Status
LED on the GFCI outlet (5C, Fig 6.1) will be OFF and buzzer alarm will sound. The Green
LED marked “POWER ON” (2, fig 6.1) will continue to be lighted. The unit will be latched
in this shut down condition and will require manual reset. To reset, switch OFF the unit
using the ON/OFF Switch (1, Fig 6.1), wait for 3 minutes and then switch ON the unit
again. Before switching ON, determine and remove the cause of short circuit.
10.2 WARNING ALARM - LOW DC INPUT VOLTAGE
The voltage at the DC input terminals will be lower than the voltage at the battery
terminals due to voltage drop in the battery cables and connectors. The drop in the
voltage at the DC input terminals of the inverter could be due to lower battery terminal
voltage or due to abnormally high drop in the battery cables if the cables are not thick
enough (Please see Section 8.4.3). If the voltage at the DC input terminals drops to 10.7V
± 0.1V for PST-600-12 or to 21.4V ± 0.2V for PST-600-24, a buzzer alarm will be sounded.
The GREEN "POWER ON" LED (2, Fig 6.1) and the Status LED on the GFCI (5C, Fig 6.1) will
continue to be GREEN and the AC output voltage 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 the inverter terminals further drops to
10V ± 0.1V.
10.3 LOW DC INPUT VOLTAGE SHUT DOWN
If the voltage at the DC input terminals drops to 10V ± 0.1V for PST-600-12 or to 20V ±
0.2V for PST-600-24, the AC output is shut down. Buzzer alarm is sounded. The GREEN
"POWER ON" LED (2, Fig 6.1) will remain lighted. The Status LED on the GFCI (5C, Fig 6.1)
will be OFF.
The unit will reset automatically when the DC input voltage rises to 11.5V ± 0.3V for PST-
600-12 or to 23.0V ± 0.5V for PST-600-24.
10.4 HIGH DC INPUT VOLTAGE SHUTDOWN
If the voltage at the DC input terminals rises to 16.5V for PST-600-12 or 33.0V for PST-
600-24, the inverter will be shut down temporarily. Buzzer alarm will be sounded. The
GREEN "POWER ON" LED (2, Fig 6.1) will remain lighted. The Status LED on the GFCI (5C,
Fig 6.1) will be OFF. The unit will be reset automatically when the voltage drops down to
< 16.5V for PST-600-12 or < 33.0V for PST-600-24.
SECTION 10 |
Protections