OTHERS
OTHERS
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22
1. Use multi meter to check if the resistance between earth & inverter frame is about zero. If it's not, Please make the connection between
earth & inverter frame well.
2. If the humidity is very high, there maybe Isolation Failure occur.
3. Check the resistance betwen PV1+/PV2+/BAT+/PV- to earth, if the resistance is lower than 33.3k, check the system wiring connection.
4. Try to restart the inverter, check if the fault is still happens, if not, means it is just an occasional situation, or contact GoodWe.
The error message below will be displayed on PV Master APP or reported by Email if the error really happens.
4.2 ERROR MESSAGE AND TROUBLESHOOTINGS
Connect the battery to the inverter without the battery function
activated
First purchase the activation code and activate the battery function in PV MASTER, then connect the battery to use.
• ERROR MESSAGE
ERROR MESSAGE EXPLANATION REASON SOLUTIONS
Utility Loss
VAC Failure
FAC Failure
PV/BAT Over Vlotage
Over Temperature
Isolation Failure
Ground l Failure
Relay Check Failure
DC Injection High
EEPROM R/W Failure
SPI Failure
DC Bus High
Back-Up Over Load
Battery License Fault
Not available of public grid power
(power lost or on-grid connection fails)
Grid voltage is not within permissible range
Inverter does not detect the connection of grid
Inverter detects that AC voltage is beyond the normal
range required by the safety country
Inverter detects that Grid frequency is beyond the normal
range required by the safety country
Inverter working environment leads to a high temperature condition
Grid Eficiency is not within permissible range
PV or BAT voltage is too high
Temperature inside of the inverter is too high
Ground insulation impedance of PV
string is too low
Ground leakage current is over-high
Self checking of relay fails
Internal communication fails
BUS voltage is over-high
Back-up sid is over loaded
Battery function is not activated
The total voltage (opencircuit voltage) of each PV string is
higher than the max DC input voltage of the inverter.
Or the battery voltage is higher than the max BAT input voltage
of the inverter
1. Check (use multi-meter) ifAC side has voltage，Make sure grid power is available
2. Make sure AC cables are connected tightly and right well
3. If all is well, please try to turm off AC breaker and turn on again after 5 mins
1. Make sure safety country of the inverter is set right
2. If safety country is right, then please check on inverter APP if AC frequency (Fac) is within a normal range
3. If FAC filure only appear a few times and resolved soon, it should be caused by occasional grid frequency unstability.
Check PV string VOC is lower than Max PV Input Voltage of the inverter
IfVOC of PV string is high, please decrease panels to make sure VOC is with the max DC input voltage of the inverter.
1. Try to decrease surrounding temperature
2. Make sure the installation complies with the instruction on inverter user manual
3. Try to close inverter for 15 mins, then start up again.
Check use multi-meter if there is voltage value (normally should be close to 0V) between earth & inverter frame.
If there is a voltage, it means the Neutral & ground cable are not connected well on AC side. If it happened only
at early morning, dawn or on rainy days with high air humidity, and recover soon, it should be normal.
Check use multi-meter if there is high voltage (normally should be lower than 10V) between N&PE cable on AC side.
If the voltage higher than 10V, it means the Neutral & ground cable are not connected well on AC side or restart inverter.
1. Make sure safety country of the inverter is set right
2. Check (use multi-meter) if AC voltage (Between L&N or L&L)is within a normal range (Also on AC breaker side)
a. if AC voltage is high, then make sure AC cable complies with that required on user manual and AC cable is not too long
b. if voltage is low, make sure AC cable is connected well and the jacket of AC cable is not compressed into AC terminal
3. Make sure the grid voltage of your area is stable and within normal range.
lsolation failure could be caused by multi reasons like PV panels
are not grounded well, DC cable is broken, PV panels are aged or
surrounding humidity is comparatively heavy, etc.
Ground I failure could be caused by multi reasons like neutral
cable on AC side is not connected well or surrounding humidity
is comparatively heavy, etc.
Neutral & ground cable are not connected well on AC side or
just occasional failure.
Inverter detects a higher DC component in AC output
Caused by a strong external magnetic field etc.
Caused by a strong external magnetic field etc.
Total Back-Up load power is higher than the nominal backup
output power
Try to restart inverter, check if it still happens, if not, means it is just an occasional situation or contact GoodWe
Try to restart inverter, check if it still happens, if not, means it is just an occasional situation or contact GoodWe
Try to restart inverter, check if it still happens, if not, means it is just an occasional situation or contact GoodWe
Try to restart inverter, check if it still happens, if not, means it is just an occasional situation or contact GoodWe
Decrease Back-Up loads to make sure the total load power is lower than Back-Up nominal output power (please
refer to page 12)
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