Samlex America PST-2000-24 - Manual (Page 37)

36 | SAMLEX AMERICA INC. SAMLEX AMERICA INC. | 37
seCtIOn 9 | Operation
Switching the inverter on/oFF
Before switching on the inverter, check that all the AC loads have been switched off. The
oN/off switch (1) on the front panel of the inverter is used to switch on and switch off the
inverter. This switch operates a low power control circuitry, which in turn controls all the
high power circuitry. optional Remote Control Model RC-200 may also be used for oN/off
control.
!
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 con-
nected to the inverter.
When the inverter is switched oN, the GREEN "Power oN" LED (2, fig. 6.1) will be lighted.
This LED indicates that the input section of the inverter is operating normally. Under normal
operating conditions, AC output voltage will now be available at the GfCI Duplex Recepta-
cle (5). The Green indicator light on the GfCI will be lighted.
Switch on the AC load(s). The GREEN "Power oN" LED (2) and the indication light on the
GfCI should remain lighted for normal operation of the load.
temperature controlled cooling Fans
Two cooling fans are thermostatically controlled. Temperature of a critical hot spot inside
the inverter is monitored to activate the fans and the over temperature shut-down. When
the temperature of this hot spot reaches 118.4°f / 48°C, the fans are switched oN. The fans
will be automatically switched off once the hot spot cools down to 107.6°f / 42°C. Please
note that the fans 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 GREEN "Power oN"
LED (2) and the indication light on the GfCI will be lighted. Please see under "Protection
Against Abnormal Conditions" and "Troubleshooting Guide" for symptoms of abnormal
operation.
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 supplied
(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 inverter to prevent
unnecessary current drain from the battery.
i
inFo
When the inverter is turned off using the optional Remote Control RC-200,
some control circuitry in the inverter is still alive and will draw very low current.
Therefore, to prevent any drain from the battery, switch off the inverter from
the oN/off switch provided on the front panel of the inverter.