User Manual
49
Error Code
LCD Display
Message
Phenomenon and Possible Cause
Phenomenon and
Possible Cause
73 L1 No Grid Err S
The connec tion betw een Grid and
inverter has problems or is missing.
Chec k the AC con nection.
I f ev e r y t h i n g i s c o r r e c t ,
you ne ed t o co ntact loc al
agent or SAJ Service line.
74 L2 No Grid Err S
75 L3 No Grid Err S
76 PV1 Volt High S
1)The open-circuit voltage of the PV
generator is higher than the maximum
DC inpu t vo lt age o f th e i nv erter.
C h e c k t h e P V s t r i n g
c o n f i g u r a t i o n . T h e S A J
D e s i g n e r c a n h e l p y o u .
I f ev e r y t h i n g i s c o r r e c t ,
you ne ed t o co ntact loc al
agent or SAJ Service line.
77 PV2 Volt High S
78 PV1 Curr. High S
1)The PV inp ut current is beyond
the Max. Input Current. The value is
speciîżed in the datasheet of the inverter.
2)The internal current sensor is damaged.
If the e rro r is stil l active,
p l e a s e co n t a c t t h e l o c a l
agent or SAJ Service line.
79 PV2 Curr. High S
80 PV Voltage Low S The voltage of the PV input is too low.
C h e c k t h e P V s t r i n g
c o n f i g u r a t i o n . T h e S A J
D e s i g n e r c a n h e l p y o u .
I f ev e r y t h i n g i s c o r r e c t ,
you ne ed t o co ntact loc al
agent or SAJ Service line.
81 Lost Com. D<->C D
Communication between Control board
and Display board fails.
Check the connection between
Control board and Display
board. If everything is correct,
you ne ed t o co ntact loc al
agent or SAJ Service line.
2)Sudden DC surge.
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