Magnum-energy MMS Series User Manual download pdf (Page 40)

Operation

Protection Mode

There are ﬁ ve fault conditions that will cause the inverter to shut

down: Low Battery, High Battery, Over-temperature, AC Overload,

and Internal faults. If your inverter has shut down, monitor the

status indicator and count the number of blinks that occur every

four seconds to determine the particular reason for the shutdown.

Refer to the Troubleshooting section to help diagnose/clear the

fault condition.

• Blinks on x1 every four seconds – Low Battery fault.

• Blinks on x2 every four seconds – High Battery fault.

• Blinks on x3 every four seconds – Over-temperature fault.

• Blinks on x4 every four seconds – AC Overload fault.

• Blinks on x5 every four seconds – Internal fault.

Charge Mode

The green LED status indicator provides additional information:

• Blinks off every four seconds – The unit is charging the

batteries connected to the inverter. The external AC power

(shorepower or generator) connected to the inverter’s input is

passing through the inverter and is powering the AC loads con-

nected to the inverter’s output.

3.5 Factory Default Settings

The MMS Series inverter/charger uses default settings that are

adequate for most installations (see Table 6). However, you can

adjust these parameters using Magnum’s optional ME-RC50 re-

mote. The settings once programmed are saved in non-volatile

memory and are preserved until changed—even if DC power to

the inverter is lost (the ME-RC50 must always be connected).

The following information can help you determine if you need the

ME-RC50 remote*.

01 Search Watts: This setting allows you to turn off the power-

saving Search mode circuitry and to adjust the power level at which

the inverter will “wake up” and start inverting.

02 Low Battery Cut Out: This setting determines when the inverter

will turn off based on low battery voltage. The inverter turns off

automatically after the battery voltage has been below this setting

for more than one minute. This protects the batteries from over-

discharge and the AC loads from unregulated power (brown-outs).

03 Battery AmpHrs: This setting allows you to input the battery

bank size in amp hours. This provides information to the charger

on how long to charge the batteries in the Absorb Charging stage.

* Visit www.magnumenergy.com for more information.

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Magnum-energy MMS Series User Manual Page 40