5.1 Fault
14
4. Protection
5. Troubleshooting
Protection
Instruction
PV Limit Current
PV Short Current
PV Reverse Polarity
Night Reverse Charging
When the charging current of the PV array exceeds its rated current, it will be charged at
the rated current. NOTE: When the PV modules are in series, ensure that the open circuit
voltage of the PV array does not exceed the "maximum PV open circuit voltage".
Otherwise the inverter/charger may be damaged.
When PV is not charging and short circuit, the inverter/charger is not damaged.
Fully protection against PV reverse polarity, correct the wire connection to resume normal
operation. NOTE: The inverter/charger will be damaged when the PV array straight polarity
and the actual operation power of the PV array is 1.5 times greater than the rated charge
power!
Prevent the battery discharging through the PV module in the night.
Utility Input Overvoltage
When the utility voltage exceeds 280VDC, it will stop utility charging/discharging.
Utility Input Under Voltage
When the utility voltage less than 160VDC, it will stop utility charging/discharging.
Battery Overvoltage
When the battery voltage reaches to the set point of Over Voltage Disconnect Voltage,
the inverter/charger will stop charging the battery to protect the battery from being over
charged to break down.
Battery Over Discharge
When the battery voltage reaches to the set point of Low Voltage Disconnect Voltage, the
controller will stop discharging the battery to protect the battery from being over
discharged to break down.
Load Output Short Circuit
Load Output Overload
Device Overheating
It will immediately close the output in occurrence of short-circuit and hereafter the output
is automatically recovered in time delay (the first time delay for 5s, the second time delay
for 10s, the third time delay for 15s); if the short-circuit remains after 3 times of delay,
restart the inverter/charger only after clearing the fault.
Overload
105%
130%
160%
180%
15min.
30s
10s
5s
The first time delay for 5s, the second time delay for 10s, the third time
delay for 15s
Recover 3
times
The inverter/charger will stop charging/discharging when the internal temperature is too
high, and will restore charging/discharging when the temperature is recovered to normal.
Continuance
Module
Code
Fault
Battery
frame
blink
Indicator
Buzzer
Fault
indicator
Battery
BLV
Battery Low Voltage
Flashing
—
—
—
BOV Battery Over Voltage
Alarm
On
Solid
BOD
Battery Over discharge
NVE
Nominal Voltage Error
LTP
Low Temperature
PV
charging
module
OTP
Over Temperature
(PV Charge Module)
—
PV charge
Fast
Flashing
CFA
Communication Fault
Alarm
Utility
charging
module
IOV
Input Over Voltage
Utility
Fast
Flashing
ILV
Input Low Voltage
OTP
Over Temperature
(Utility Charge Module)
CFA
Communication Fault
Alarm
Inverter
output
module
OVA
Output Over Voltage
Inverter
Fast
Flashing
IOS
Input Low Voltage
OOL
Output Over Load
OTP
Inverter Temperture
CFA
Communication Fault
Alarm
Summary of Contents for FBIC3000VA/24V
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