East EAHI-6000-SL-S, Manual

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9.2 Fault list
The user can troubleshoot faults and take corresponding measures according to the fault
information of the inverter.
Fault information Possible cause Action
GRID Over VOLT 1
Grid failure
1. Check the grid voltage or frequency. If the
grid voltage or frequency exceeds the
allowable range of the inverter protection
parameters, start the inverter again after the
power grid becomes normal.
2. If the grid voltage or frequency is within the
allowable range, please contact the distributor
or after-sales service center.
GRID Over VOLT 2
GRID Low VOLT 1
GRID Low VOLT 2
GRID Over FREQ 1
GRID Over FREQ 2
GRID Low FREQ 1
GRID Low FREQ 2
GRID Fast-Check
Abnormal
Failure in inverter
soft-starting due to
sudden change of
external condition
1. Wait until the inverter recovers.
2. Check the grid voltage or frequency. If the
grid voltage or frequency exceeds the
allowable range of the inverter protection
parameters, start the inverter again after the
power grid becomes normal.
3. If the grid voltage or frequency is within the
allowable range, please contact the distributor
or after-sales service center.
Island Fault
After grid AC failure,
the inverter detects the
islanding by active
mode.
1. Check whether the AC circuit breaker of the
grid trips and the connection wires are firmly
connected.
2. Check whether the grid is available.
3. If all conditions are correct and the failure
persists, please contact the distributor or
after-sales service center.
PE VOLT Fault
1. PE terminal on AC
terminal block and
secondary protection
ground terminal on
inverter bottom are not
reliably connected.
2. High voltage to earth
of L and N wires of
inverter
1. Check whether the inverter has a reliable
ground cable.
2. If there is an access wire and the failure
persists, please contact the distributor or
after-sales service center.
OUT RMS Over VOLT Protection resulting
from abnormal
1. Check whether the external load and the grid
exceed the range specified in the inverter
OUT RMS Low VOLT