MYERS MP Series, Installation, Operation & Maintenance Manual

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2.2.2 MP2000E Operating Modes
Purpose: Describes the Operating modes.
TIP: The LCD automatically displays the following modes when they change.
LCD
Shows Explanation
STANDBY
This mode is displayed when the unit is first turned on. The inverter remains off and the
MP2000E does not provide output power to the loads. If input line power is qualified, it
automatically switches to line mode.
To provide battery power to the loads, use the manual on function (see Section 2.2.9)
ON LINE
The normal operating mode. Input line power is provided to the loads, the batteries are charging
and the MP2000E is ready to provide backup power
BOOST*
The unit automatically transfers to BOOST mode to raise the lower input line voltage when output
drops below the user programmable preset limit
ON BATT
The unit automatically transfers to battery when input line power is unqualified or not present. The
batteries provide power to the loads
BUCK*
The unit automatically transfers to BUCK mode to reduce the higher input line voltage when output
raises above the user programmable preset limit
SELF TEST
When “Self Test” mode is active, the unit will enter “Battery Mode” automatically to test or check
if output voltage and waveform is correct. After the programmed duration, the unit returns back
to “Line Mode”. Users may use “Maintenance Mode” to configure a longer time for self-test.
Default time for self-test is 1 minute.
LOW BATT
"Low Bat"
When the unit is in “Battery Mode” the batteries begins to discharge. If the battery voltage falls
below the user programmed (40% default setting) of its capacity, warning appears.
* When enabled