U.S.A. HEADQUARTERS
P.O. Box 1306, Newport Beach, CA 92663
Phone: 714-751-0488 Fax: 714-957-1621
E-Mail: [email protected]
EURO WAREHOUSE
Phone:+31-35-603-2494 Fax:+31-35-603-2149
E-Mail: [email protected]
www.newmarpower.com
15
B) Inverter ON/OFF Switch Functions
It is important understand the functioning of the ON/OFF switch of the inverter, so that
there can be no incorrect assumption about when AC is being applied within the unit, at the
duplex outlets or the AC hard-wire output.
1)
The ON/OFF switch (either on the front or remote panel) controls
only
whether the
internal DC-AC inverter is operating.
Whenever external AC is applied
the internal
battery charger is operational and AC is "live" at both the duplex outlets and
the AC hard-wire output, even if the switch is "OFF". Only shutting off the external AC
at its source will prevent AC flow through the inverter. (Note that, when external AC is
applied the "External" L.E.D. remains illuminated, regardless of which position the
ON/OFF switch is in.)
2)
If a remote panel is connected and:
a)
the front panel switch is ON, then the inverter can be controlled with the
remote ON/OFF switch.
b)
the front panel switch is OFF, then the inverter remains off, regardless of the
position of the switch on the remote panel.
C) Inverter Shutdown Indications and Causes
Three “Shutdown Mode” L.E.D.s are provided to indicate an abnormal condition which has
caused the inverter to cease functioning temporarily. The indicators and likely causes are as
follows:
1) “Low Input Voltage”
L.E.D.: Batteries may be permanently damaged by extreme
discharge. Therefore, the inverter monitors battery voltage and shuts off when it
reaches a critical low point (10.5 VDC for models 12-1200IC and 12-1799IC; 21.0
VDC for model 24-1300IC). Typically, this occurs when operating the inverter for long
periods without any external AC source coming on line to recharge the batteries. If
this condition occurs soon after the inverter is turned on, it may be due to an under-
sized, old/weak battery system or to under-sized/over-length battery wiring. Verify
proper battery capacity and health, verify proper wire size and length (see Battery
Wiring section), then recharge fully.
2) “Overload”
L.E.D.: This may be due to either of two causes; short circuit or too
much wattage demand. Remove all AC loads. If the indicator remains lit, then a short
circuit is likely. Check AC output wiring carefully. If load removal causes this L.E.D.
to be extinguished then the demand is probably exceeding the inverter's rating. Check
the total wattage of all appliances being used at one time and this is within the unit’s
rating.
3) “High Temperature”
L.E.D.: The inverter employs an integral cooling fan which
operates automatically to keep the unit within rated operating temperature—under