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©2009 Magnum Energy Inc.
Operation
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 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.
Low Battery
– The inverter 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: 06 LBCO
setting
for more than 1 minute. The inverter will automatically restart and resume
operation when the battery voltage rises to
≥
12.5 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/shore power or a generator) is connected to the inverter/
charger’s input and battery charging begins.
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 inverter will automatically restart and resume operation
when the battery voltage drops.
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.
•
•
Low Bat
appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED’s is off.
E R R OR!
Low B at
Figure 5-11, Low Battery Fault
High Bat
appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED’s is off.
E R R OR!
H igh B at
Figure 5-12, High Battery Fault
