West Mountain Radio PWRguard PLUS, Руководство по эксплуатации

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5
West Mountain Radio Operating Manual
Fuse
The PWRguard PLUS fuse is used to protect the source and the load
from excessive current. The PWRguard PLUS includes a 40A fuse (the
rating of the PWRguard PLUS.) The fuse may be changed to a lower
value if desired for protection of other system components downstream.
Operating In Automatic Reset Mode
The PWRguard PLUS unit is operational whenever it is connected to
the 12V power source. There is no ON/OFF switch needed. This is the
Factory Default Mode Setting.
GREEN LED –
Output ON
When the source voltage is between 11.0 and
15.0V (nominally 13.8V), the large green LED will
light showing that the output is ON. The small LED
indicates the PWRguard PLUS is in Automatic Reset
Mode.
RED LED –
Hi-Fault
The RED LED (Hi-Fault) will light whenever the
input voltage exceeds 15V. The GREEN LED will
go OFF and there will be NO output voltage. In
the automatic reset mode, the RED LED will turn
off when the input voltage returns to less than 15V,
and the output will turn ON, thereby relighting the
GREEN LED and re-powering the load.
YELLOW LED–
Low-Fault
The YELLOW LED (low-fault) will light whenever the
input voltage drops below 11.0V. This LED will also
briefly light if there are momentary dips below 11.0V.
This feature assures correct operation during turn-on
surge currents and during SSB or CW transmission
when powered from a battery supply. The voltage
may drop each time the power requirement peaks.
If the voltage continues to be below 11.0V for more
than 5 seconds, the LED will light continuously. This
state will continue until the voltage is continuously
below 11.0V and indicates the battery is nearing its
drained state. The GREEN LED will go OFF, thereby
turning the output OFF. The PWRguard PLUS will
now remain OFF. When the input voltage returns to
13.0V, the PWRguard PLUS will automatically reset.
Operating In Manual Reset Mode
To configure this mode, hold the reset button down for 5 seconds and
the small green “AUTO RESET” LED will go OFF.