©
2006 Magnum Energy Inc
.
3.0 Operation
8
Monitoring the LED Indicators
The remote front panel uses LED indicators to show the status of the
inverter system. These LED indicators automatically switch between
the inverter or charger mode (MM-RC only) as the operation of the
inverter system changes.
The LED status indicators show four modes of system operation:
• INVERT - Invert Mode status
• AC IN - Transfer Mode status
• FAULT - Fault Mode status
• BULK, ABSORB or FLOAT (MM-RC only) - Charge Mode status
Note: To understand more about the operating modes of the
inverter or charger, refer to the MM Series Inverters, Installa-
tion and Operation Guide.
MM-R and MM-RC Remotes
The three LED indicators on the left side of both the MM-R and MM-RC
remotes (
s
ee
figure 7)
will show you the operating status of the
MM
Series inverter.
Monitor these indicators to determine the inverter’s
mode of operation:
INVERT (green) -
• On (solid)
- and AC IN LED indicator is Off - The inverter is On. It is using
energy from the battery to supply AC power to the loads connected
to the inverter.
- and AC IN LED indicator is On (solid) - The inverter is in Standby.
The external AC power (Utility or generator) connected to the
inverters input is passing through the inverter to power the AC
loads. The inverter will automatically turn on to power the AC loads
if the external AC power is lost or disconnected.
• Blinks On (once every second) - The inverter is in search mode.
The AC load is below 5 watts (Search Watts default setting).
• Off - The inverter
is disabled. The inverter is not on or will not come
on if AC power is lost or disconnected.
AC IN (green) -
• On (solid) - the external AC power (Utility or generator) is
connected to the inverters input and passing through the inverter to
power the AC loads connected to the inverter’s output.
• Blinking On (once every second) - the external AC power is present
but not actively being used. Either 1. The AC input is being qualified
(takes approximately 15 seconds); or 2. The input AC voltage is low.
Ensure the incoming AC voltage is above 90 volts (VAC dropout
setting with the MM remote connected).
• Off - No external AC po
wer is detected on the inverter’s input.
