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©2013 Magnum Energy, Inc.
5.0 Operation
5.3.3.3 Internal Fault Messages
The inverter continually monitors several internal components and will shut
down to help protect itself if one of the following “internal” faults occurs.
Internal Charger
appears on the
LCD. The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Internal Charger
Settings/Info..
Internal Bridge
appears on the
LCD. The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Internal Bridge
Settings/Info..
Figure 5-35, Internal Bridge Fault
Internal NTC
appears on the LCD.
The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Internal NTC
Settings/Info..
Figure 5-37, Internal NTC Fault
Internal Relay
appears on the
LCD. The FAULT (red) LED is on. The
PWR (green), CHG (green), and INV
(green) LEDs are off.
FAULT
PWR
CHG
INV
Internal Relay
Settings/Info..
Figure 5-38, Internal Relay Fault
Figure 5-36, Internal Charger Fault
• Internal Relay
– The inverter shut down because the internal AC
transfer relay did not close while charging.
•
Internal Bridge
– The inverter shut down because while inverting, the
output circuit is no longer detecting any AC output voltage or current.
•
Internal Charger
– The inverter shut down because while charging,
the charger circuit is attempting to provide maximum current, but is not
detecting any current or voltage rise to the battery bank.
• Internal NTC
– The inverter shut down because the internal NTC
(Negative Temperature Coef
fi
cient) temperature sensor caused a very large
but unexpected temperature change.
Remedy:
If an “internal” fault occurs, perform an inverter or power
reset to clear it (see Sections 6.2 & 6.3). After the reset, turn the
inverter on. If the internal fault remains or returns, the inverter will
require repair at an authorized service facility.
