Fault Mode Messages; System Fault Messages; Figure 5-16, Low Battery Fault; Figure 5-17, High Battery Fault - Magnum Energy ME-ARC Owner's Manual

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5.3.3 Fault Mode Messages

The fault LED comes on and a fault status is displayed when an abnormal condition
is detected. View the LCD display and the information in this section to determine and
correct the issue.
Info: Many of the faults will automatically restart when the fault is
cleared. Some faults will require a manual restart; this requires the
ON/OFF INVERTER button on the remote to be pressed and released.
Finally, if the fault is unable to clear, an inverter reset may be required
- see section 6.2 to perform an inverter reset.

5.3.3.1 System Fault messages -

These fault messages are usually caused by some external issue that directly
affects the inverter/charger system.
PWR
Low Battery
FAULT
Settings/Info...
CHG
INV

Figure 5-16, Low Battery Fault

• Low Battery – The inverter has turned off to help prevent the batteries
from being over-discharged. This message is displayed and the FAULT (red)
LED illuminates when the battery voltage drops below the Setup 02B LBCO
setting for more than 1 minute. The inverter will automatically restart and
resume operation when the battery voltage rises to ≥11.0 VDC (12-volt
models), ≥25.0 VDC (24-volt models), or ≥50.0 VDC (48-volt models).
Remedy: This fault will also automatically restart if AC power such
as utility power or a generator is connected to the inverter/charger's
input and battery charging begins.
PWR
High Battery
FAULT
Settings/Info...
CHG
INV

Figure 5-17, High Battery Fault

• High Battery – The inverter has turned off because the battery voltage
is at a very high level. This fault message is displayed and the FAULT (red)
LED will be on when the battery voltage is above the High Battery Cut-Out
(HBCO) value. This fault will automatically restart and resume operation
when the battery voltage drops 0.3 VDC (12-volt models), 0.6 VDC (24-volt
models), or 1.2 VDC (48-volt models) below the HBCO value.
Info: The HBCO value is dependent on your inverter revision and
model. Normally, the HBCO value for the ME/MM/RD Series Inverters
is 16 VDC (12-volt models) or 32 VDC (24-volt models); and the HBCO
value for the MS/MMS Series Inverters is 17 VDC (12-volt models),
34 VDC (24-volt models), or 68 VDC (48-volt models).
Remedy: This fault usually only occurs when an external DC charg-
ing source is charging the inverter's battery bank. Turn off any other
additional charging source to allow the DC voltage level to drop.
© 2010 Magnum Energy, Inc.
5.0 Operation
Low Battery appears on the LCD
and the FAULT (red) LED is on. The
PWR (green), CHG (green) and INV
(green) LED's are off.
High Battery appears on the LCD
and the FAULT (red) LED is on. The
PWR (green), CHG (green) and INV
(green) LED's are off.
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