Magnum Energy MMS-E Series User Manual

Page 38

3.0 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 1 time every four seconds - Low Battery fault

• Blinks on 2 times every four seconds - High Battery fault

• Blinks on 3 times every four seconds - Over-temperature

fault

• Blinks on 4 times every four seconds - AC Overload fault

• Blinks on 5 times 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
(shore power or generator) connected to the inverter’s input
is passing through the inverter and is powering the AC loads
connected to the inverter’s output.

3.4 Factory Default Settings

The MMS-E Series inverter/charger uses default settings that are
adequate for most installations (see Table 3-2). However, you can
adjust these parameters using Magnum’s optional ME-RC50 re-
mote. Once programmed, the settings 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).

* Visit www.magnumenergy.com for more information.