1 .Check if the meter is on
2.Check the machine and the meter connection is nor-
mal.
Optimizer and inverter
co m mu ni ca t i o n i s
abnormal
1 .Check if the optimizer is on.
2.Check whether the connection between the opti-
mizer and the inverter is normal.
String communication
abnormal
1 .After shutdown,Check the string panel wiring.
2.If the error message still exists, contact manufac-
turer.
1 .Restart inverter.
2. If err or mes s ag e st il l ex is t s , c o n t a c t man-
ufacturer.
DSP and COM fi r m -
war e v e r s i o n un-
match
1.Check the firmware version.
2. If e rro r m e s s a g e st i l l ex i st s , c o n t a c t
manufacturer.
1 .Restart inverter
2. If e rro r m e s s a g e st i l l ex i s t s , co n t a c t
manufacturer.
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