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13.3 System error
1.Check the panel terminal wiring after shutdown;
2.Restart the inverter;
3 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
Leakage current is
too high
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
Panel voltage is
too high
1.Disconnect the DC switch immediately and confirm the
voltage;
2.After the normal voltage is restored,if the fault
message still exists,contact the manufacturer.
Low panel
insulation
resistance
1.After shutting down, check whether the panel shell is
reliably grounded;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
The mains voltage
is abnormal
1.Check the grid voltage;
2.If the grid voltage has recovered to the allowable range
and the fault information still exists,contact the
manufacturer.
1.Please check the mains terminal;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
1.Check the AC side line connection after shutdown;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
Zero ground
detection anomaly
1.Check the ground wire after shutting down to ensure
that the ground wire is connected reliably;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
Abnor m al m ains
frequency
1.Detect grid frequency and restart;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
Output overload
protection
1.Check output load, reduce load power;
2.If the fault information still exists,contact the
manufacturer
Reverse
connection of
current
transformer
1.Check the connection direction of the current
transformer after shutdown;
2.If the fault information still exists,contact the
manufacturer.
C o m m u n i c a t i o n
failure of current
transformer
1.Please check the communication line;
2.If the fault information still exists,contact the
manufacturer.
1.The pairing of the machine and the current transformer
is overtime, re-pair;
2.If the fault information still exists,contact the
manufacturer;
A b n o r m a l D C
component offset
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
The output
voltage DC
component is too
high
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
The output
current DC
component is too
high
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
1.Check whether the output current is unbalanced after
shutdown;
2. I f th e f a ult me s sag e s t il l ex i st s , c o nt a c t t he
manufacturer.
B u s v o l t a g e
s a m p l i n g i s
abnormal
1 Restart the machine
2: If the fault information still exists, contact the
manufacturer
1.Restart the machine;
2.If the fault information still exists, contact the
manufacturer.
I n i t i a l i z a t i o n
mode exception
1.Reset mode;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
Automatic
detection failed
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
1.Check the temperature after shutdown,restart the
inverter after normal;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
A b n o r m a l b u s
voltage
1.estart the machine;
2.If the fault information still exists, contact the
manufacturer.
Inconsistent
insulation
resistance
sampling
1.Restart the machine;
2.If the fault information still exists,contact the
manufacturer.
Internal
c o m m u n i c a t i o n
abnormal
1.Check the wiring of the communication version after
shutdown;
2. I f th e f a ult me s sag e s t ill ex i st s , c o nt a c t t he
manufacturer.
Temperature
sensor connection
abnormal
1.Check whether the temperature sampling module is
properly connected after shutdown;
2 . I f t h e f a u l t m e s s a g e s t i l l e x i s t s , c o n t a c t t h e
manufacturer.
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