Njoy Astris 5K/3P2T2 User Manual page 38

1.If the alarm occurs accidentally, possibly the power grid is abnormal
accidentally. No extra action is needed.
2. If the alarm occurs repeatedly, contact the local power station. After
receiving approval of the local power bureau, revise the electrical protection
parameters setting on the inverter through APP.
3.If the alarm persists for a long time,please confirm:
A2-Grid absent
1) AC circuit breaker is disconnect ro not;
2) Whether the AC circuit breaker is damaged (whether the voltage in the
closed state is consistent with the voltage of the outlet);
3) The AC terminals are in good contact;
4) Whether the power supply line failure.
If exclude all possibility, please contact the customer service report repair.
1.If the alarm occurs accidentally, possibly the power grid is abnormal
accidentally. No extra action is needed.
A3-Grid over
2.If the alarm occurs repeatedly, contact the local power station. After receiving
frequency
approval of the local power bureau, revise the electrical protection parameters
setting on the inverter through APP.
1.If the alarm occurs accidentally, possibly the power grid is abnormal
accidentally. No extra action is needed.
2.If the alarm occurs repeatedly, contact the local power station. After receiving
A4-Grid under
approval of the local power bureau, revise the electrical protection parameters
frequency
setting on the inverter through APP.
3.If the alarm persists for a long time, please contact the customer service
center
1.If the alarm occurs accidentally, possibly the power grid is abnormal
accidentally. No extra action is needed.
2.If the alarm occurs repeatedly,please confirm:
A6-Grid 1) The three-phase voltage is measured, and confirm the three-phase voltage
abnormal imbalance is more than 30%, Please improve the power supply condition of the
(Only for power grid company.
threephase 2) The three-phase AC circuit breaker is damaged or not (whether the voltage
inverter) of the inlet line and the outlet of the outlet is consistent).
3) The AC circuit breaker have zero line or not, and if the line is cut off, the short
zero line confirmation problem is repeated. If not again, replace 3Pole switch
or the zero line is short. If still, please contact customer service report repair
Check whether the maximum voltage of a single string of input PV modules
B0-PV over
exceeds the MPPT voltage range. If the maximum voltage is higher than the
voltage
standard voltage, modify the number of PV module connection strings
1.If the alarm occurs accidentally, the inverter can generate power. Check the
installation environment is wet or not of the component and wire rope,and
improve the installation environment.
B1-PV 2..If the alarm occurs repeatedly, the inverter can generate electricity
insulation occasionally. Check whether the positive and negative polarity of the pv
abnormal component is short circuit, and check the component is damaged or the
connection line is broken.
3.If the alarm continues, equipment cannot generate power, please contact
customer service report repair.
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