SamplexPower PST-1500-12 Mode D'emploi page 43

SECTION 10 | Protections
10.2 WARNING ALARM - LOW DC INPUT VOLTAGE
The voltage at the DC input terminals will be lower than the voltage at the battery ter-
minals due to voltage drop in the battery wires and connectors. The drop in the voltage
at the DC input terminals of the inverter could be due to lower battery voltage or due
to abnormally high drop in the battery wires if the wires are not thick enough (Please
see Section 8.4.3 "Connection from Batteries to the DC Input Side – Sizing of Cables and
Fuses"). If the voltage at the DC input terminals drops to 10.7V ± 0.1V or lower for PST-
1500-12 / PST-2000-12 or to 21.4V ± 0.2V or lower for PST-1500-24 / PST-2000-24, a buzzer
alarm will be sounded. The Green LED marked "POWER" (2, Fig 6.1) and indication light
on the GFCI will continue to be lighted 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 or lower for PST-1500-12 / PST-2000-12 or, to 20V ± 0.2V or
lower for PST-1500-24 / PST-2000-24.
10.3 LOW DC INPUT VOLTAGE SHUT DOWN
If the voltage at the DC input terminals drops to 10V ± 0.1V or lower for PST-1500-12 /
PST-2000-12 or to 20V ± 0.2V or lower for PST-1500-24 / PST-2000-24, the AC output is
shut down. Buzzer alarm is sounded. The Green LED marked "POWER" (2, Fig 6.1) will
remain lighted. The Green indication light on the GFCI will be OFF.
The unit will reset automatically when the DC input voltage rises to 11.5V ± 0.3V or high-
er for PST-1500-12 / PST-2000-12 or to 23V ± 0.5V or higher for PST-1500-24 / PST-2000-24.
10.4 HIGH DC INPUT VOLTAGE SHUTDOWN
If the voltage at the DC input terminals rises to 16.5V or higher for PST-1500-12 / PST-
2000-12 or, to 33V or higher for PST-1500-24 / PST-2000-24, the AC output voltage will be
shut down temporarily. Buzzer alarm will be sounded. The Green LED marked "POWER"
(2, Fig 6.1) will remain lighted. The Green indicator light on the GFCI will be OFF. The
unit will be reset automatically when the voltage drops down to < 16.5V for PST-1500-12
/ PST-2000-12 or to 33V for PST-1500-24 / PST-2000-24.
10.5 OVER-TEMPERATURE SHUT DOWN
In case of failure of the cooling fans or in the case of inadequate heat removal due to
higher ambient temperatures / insufficient air exchange, the temperature inside the unit
will increase. The temperature of a critical hot spot inside the inverter is monitored, and
at 90°C ± 5°C, the AC output of the inverter is shut down temporarily. Buzzer alarm will
be sounded. The Green LED marked "POWER" (2, Fig 6.1) will remain lighted. The Green
indication light on the GFCI will be OFF.
The unit will automatically reset after the hot spot has cooled down to 65°C ± 5°C.
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