Magnum Energy ME-MR Remote - Manual (Page 35)

©2013 Magnum Energy, Inc. 29
5.0 Operation
• FET Overload Fault – The inverter/charger has shut down because the
internal FETs (Field Effect Transistors) have quickly exceeded a safe operating
temperature. Once the FETs have cooled, perform a manual restart.
Remedy: If the fault continues to occur, disconnect all the inverter’s
AC output wires and reset the inverter (see Section 6.2). If this fault
does not clear after doing a reset, the inverter may require service.
Figure 5-21, High Battery Fault
FAULT !
High Bat
High Bat appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
• High Battery Fault – The inverter turned off because the battery
voltage is above the High Battery Cut-Out (HBCO) value. The inverter
automatically restarts and resumes 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. The HBCO value is dependent on your
inverter revision and model.
Remedy: This fault usually occurs when an external DC source is
charging the inverter’s battery bank. Turn off any other additional
charging source to allow the DC voltage level to drop.
HiBaTemp appears on the LCD and
the FAULT (red) LED is on. The INV
(green) LED is off.
Figure 5-22, High Battery Temp Fault
• High Battery Temp Fault – This fault message indicates the inverter/
charger has shut down because the Battery Temperature Sensor (BTS) has
reached a temperature greater than 54°C/129°F.
Remedy: Once the BTS cools down (≤49°C/120°F), it automatically
restarts and continues operation. As a precaution, check the BTS
location; if placed on a battery, ensure they are not overheated, or
that the BTS has not been placed in a hot area or near a hot de-
vice. If neither of these are the issue, then monitor the BTS display
under the TECH: Bat Temp menu—this reading should be above
54°C/129°F. Now remove the BTS from the inverter’s BTS port. If
the BTS reading goes to 25°C/77°F, replace the BTS. If the reading
does not go to 25°C/77°F, then inspect the BTS port for cleanliness
and/or have the inverter/charger serviced.
FAULT !
HiBaTemp