Idiomas disponibles
Idiomas disponibles
DC insulation impedance
F24
failure
F30
AC main contactor failure
F35
No AC grid
AC over current (one cycle)
F39
Grid voltage fault
AC Line L, N over voltage
Generally, the inverter will
reconnect to grid after grid
F41
returns to normal. If this fault
occurs repeatedly then check
as follow:
AC Line L, N low voltage
Generally, the inverter will
reconnect to grid after grid
F42
returns to normal. If this fault
occurs repeatedly then check
as follow:
AC Over frequency
Generally, the inverter will
reconnect to grid after grid
F47
returns to normal. If this fault
occurs repeatedly then check
as follow:
AC lower frequency
Generally, the inverter will
reconnect to grid after grid
F48
returns to normal. If this fault
occurs repeatedly then check
as follow:
1. Check PV panels connection and restart inverter. This
problem is caused by the PV side usually;
2. If the fault still exists, please contact us for help.
1. Turn off the DC/AC switch and then wait 1~2 minutes, then
turn on the DC/AC switch again;
2. If the fault still exists, please contact us for help.
1. Check AC grid voltage;
2. Check whether the AC output connection is in good
condition;
3. If the fault still exists, please contact us for help.
1. Wait for inverter to return to normal;
2. Disconnect DC switch and AC switch, and reconnect DC
switch and AC switch 10min later to restart the inverter;
3. If the fault still exists, please contact us for help.
1. Measure the actual grid voltage and compare with inverter set
value. if the grid voltage measured is higher than set value, and
then ask help from local electrically company for solution;
2. Check whether voltage protection parameters are appropriate
via LCD or monitoring platform;
3. Check whether the cross-sectional area of AC cable meets the
requirements;
4. If the fault is not caused by foregoing reasons and still exists,
please contact us for help.
1. Measure the actual grid voltage and compare with inverter set
value. if the grid voltage measured is lower than set value, and
then ask help from local electrically company for solution;
2. Check whether voltage protection parameters are appropriate
via LCD or monitoring platform;
3. If the fault is not caused by foregoing reasons and still exists,
please contact us for help.
1. Measure the actual grid frequency and compare with inverter
set value. if the grid frequency measured is higher than set
value, and then ask help from local electrically company for
solution;
2. Check whether frequency protection parameters are
appropriate via LCD or monitoring platform;
3. If the fault is not caused by foregoing reasons and still exists,
please contact us for help
1. Measure the actual grid frequency and compare with inverter
set value. if the grid frequency measured is lower than set value,
and then ask help from local electrically company for solution;
2. Check whether frequency protection parameters are
appropriate via LCD or monitoring platform;
3. If the fault is not caused by foregoing reasons and still exists,
please contact us for help.
- 34 -
