Magnum Energy ME-RTR Owner's Manual
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© 2010 Magnum Energy, Inc. 645.0 OperationDead Battery Charge – This fault indicates a discharged battery bankor one that is disconnected from the inverter. The unit is attempting to enterCharge mode, but has detected less than 7 volts (12-volt models), 14 volts(for 24-volt models) or 28 volts (for 48-volt models) on the battery bank.This fault will continue until current is able to flow into the battery from thebattery charger. Once this happens, the fault will automatically reset.Remedy: Check DC voltage on the inverter’s DC terminals andcompare it with the DC voltage on the battery bank. These twovoltages should be very close (<0.5 VDC difference). If not,check to ensure all connections are tight and the fuse/circuitbreaker between the inverter and battery bank is good.Overcurrent - This fault may be the result of an excessive AC loadand causes the inverter to shut down to protect internal power components.If the overload condition lasts for less than 10 seconds, the unit automaticallyrestarts and resumes operation. However, if the overcurrent condition occurs formore than 10 seconds, the unit shuts down and requires a manual restart.Remedy: This fault usually occurs because the connected ACloads are larger than the inverter’s output capacity, there is awiring short on the AC output, or the wires are incorrectly wired.Once the AC loads are reduced or the output wiring is corrected,manually restart the inverter to resume operation. If this faultcondition continues after all of these recommendations, performa inverter reset (see Section 6.2).FET Overload - This fault message indicates the inverter/charger hasshut down because the internal FETs (Field Effect Transistors) have quicklyexceeded a safe operating temperature. When the FETs cool, the unit requiresa manual restart to resume operation.•••FAULTPWRCHGINVDead Batt ChargeSettings/Info...Dead Batt Charge appears on the LCDand the FAULT (red) LED is on. The PWR(green), CHG (green), and INV (green)LEDs are off.Figure 5-23, Dead Battery Charge FaultOvercurrent appears on the LCDand the FAULT (red) LED is on. ThePWR (green), CHG (green), and INV(green) LEDs are off.FAULTPWRCHGINVOvercurrentSettings/Info...Figure 5-24, Overcurrent FaultFAULTPWRCHGINVFET OverloadSettings/Info...FET Overload appears on the LCDand the FAULT (red) LED is on. ThePWR (green), CHG (green), and INV(green) LEDs are off.Figure 5-25, FET Overload Fault |
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