Redx RX Series User Manual page 40

Islanding protection
Grid overvoltage
Grid under voltage
Grid over frequency
Grid under frequency
Battery over current
Relay fault
Bus soft start failed
The inverter soft
start failed
Inverter phase
lock failure
EEPROM read failure
Fan fault
The grid is connected
to the EPS terminals
Rev 20230601
Islanding protection check
When the grid detects an
error, the inverter
automatically switches to
the off -grid mode. When
the error disappears, the
inverter automatically
resumes to the grid mode
The charge and discharge
current of the battery is
too high
Detect the fault of relay
Bus voltage setup timeout
Inverter output setup
timeout
Inverter phase lock fault
EEPROM read fault
The fan is faulty
The AC input and load
output cables are
incorrectly connected
RX - 7000HY/5000HY
1. Check whether the AC circuit breaker of the
grid is disconnected and whether the connecting
cables are securely connected.
2. Check whether the grid has power.
3. If all conditions are correct and the fault still
occurs, contact installation partner.
1. Check the grid voltage or frequency; If the
power grid voltage or frequency exceeds the
allowable range of converter protection
parameters, please report to the power grid
company.
2. If the power grid voltage or frequency is
within the permissible range, contact the
installation partner.
1. Check whether the battery voltage and
capacity exceed the allowable range of
the inverter.
2. If the alarm is repeated, contact
installation partner.
1. Wait for the inverter to recover automatically.
2. If the alarm is repeated, contact installation
partner.
1. Wait for the inverter to recover automatically.
2. If the alarm is repeated, contact installation
partner.
1. Wait for the inverter to recover automatically.
2. If the alarm is repeated, contact installation
partner.
1. Disconnect power and restart the system；
2. If the error remains, contact installation partner.
1. Check whether the fan runs properly. Power
off to restart the module;
2. If the error message still exists, contact
installation partner.
1. Shut down the inverter and turn off all circuit
breakers.
2. Check whether the AC input cable (power
grid cable) is connected to the load (EPS)
output terminal.If the connection is incorrect,
reconnect the cable.
3. If the error message persists, contact
installation partner.
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