Samlex America PST-300-24 - Manual (Page 36)

36 | SAMLEX AMERICA INC.
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cAUtion!
Please note that the oN/off switch is not switching the high power battery
input circuit. Parts of the DC side circuit will still be alive even when the switch
is in the off position. Hence, disconnect the DC and AC sides before working
on any circuits connected to the inverter.
When the inverter is switched on, the Status LED (2, fig. 6.1) will turn GREEN. This LED
indicates that the inverter is operating normally. Under normal operating conditions,
AC output voltage will now be available at the GfCI Duplex Receptacle (1). The Green
indicator light on the GfCI will be lighted.
Switch on the AC load(s). The Status LED (2) and the indication light on the GfCI should
remain GREEN for normal operation of the load.
temperature controlled cooling Fan
The cooling fan is thermostatically controlled. Temperature of a critical hot spot inside
the inverter is monitored to activate the fan and the over temperature shut-down.
When the temperature of this hot spot reaches 48°C, the fan is switched oN. The fan
will be automatically switched off once the hot spot cools down to 42°C. Please note
that the fan may not come on at low loads or if the ambient temperature is cooler. This
is normal.
indications For normal operation
When the inverter is operating normally and supplying AC load(s), the Status LED (2)
and the indication light on the GfCI will be GREEN. In case of abnormal operation, the
Status LED (2) will turn oRANGE, the GREEN indication light on the GfCI will be off
and buzzer may sound. Please see under "Protection Against Abnormal Conditions" for
more details.
no Load Draw (idle current)
When the oN/off switch is turned on, all the circuitry inside the inverter becomes alive
and the AC output is made available. In this condition, even when no load is being sup-
plied (or, if a load is connected but has been switched off), the inverter draws a small
amount of current from the batteries to keep the circuitry alive and ready to deliver the
required power on demand. This is called the idle current or the no load draw. Hence,
when the load is not required to be operated, turn off the oN/off switch on the in-
verter to prevent unnecessary current drain from the battery.
seCtIOn 9 | Operation