Owners Manual

Operation

3.0 Operation

When the inverter is properly connected to batteries and turned on, the

direct current (DC) from the batteries is transformed into a modiﬁ ed sine

wave alternating current (AC). This AC is similar to the voltage provided by

your utility and is used to power any electrical appliances (i.e., AC loads)

connected to the inverter’s output.

3.1 CMW412 Operation

The CMW412 inverter has a front panel that contains a power on/off switch,

two LED indicators, and two AC outlets.

Turning the Inverter ON/OFF

The ON/OFF Power switch is used to turn the inverter on and off. To turn the

unit on, toggle the switch to the ON (I) position. The Power LED indicator

lights green to indicate that the AC output power is available. Press the ON/

OFF switch to the OFF (O) position to turn the unit off.

WARNING: The ON/OFF Power switch is not a power disconnect

switch, and does not remove the DC power from the inverter.

Disconnect all power to the inverter before working on the unit.

LED Indicators

The LED indicators on the front panel are used to indicate the inverter’s

status:

• Power LED (green) – the inverter has power and is turned on.

• Fault LED (red) – an inverter fault has been detected—which caused

the inverter to shut down.

If the fault indicator comes on:

1) Determine and resolve the fault condition (e.g., high or low voltage,

load too large, or an over-temperature condition).

2) Reset the inverter by toggling the ON/OFF Power switch to OFF, and

then back to ON.

Outlets

The two standard AC outlets are used to plug in and power an AC load.

3.2 CMW1012 and CMW1512 Operation

The CMW1012 and CMW1512 inverters use a front panel that contains a

power/select button, a status indicator, a digital display for viewing system

status, a remote port, a USB port, and a GFCI AC output receptacle.

Turning the Inverter ON/OFF

The Power/Select button is used to turn the inverter on and off. To turn the

unit on, press and hold the Power/Select button for 1 second until you hear

a “beep”. The digital display alternately shows the unit’s measured battery

voltage and AC output power, and the status indicator lights green. Press the

Power/Select button to turn the unit off.

WARNING: The Power/Select button is not a power disconnect

switch, and does not remove the DC power from the inverter.

Disconnect all power to the inverter before working on the inverter.