22
Problem
Possible Cause
Solution
Overfrequency
1
The mains AC frequency
exceeds 64 Hz.
2
The grid frequency is still
above
61
Hz
after
overfrequency.
Usually, the charger will be re-
connected to the grid once the
grid returns to normal. If the prob-
lem occurs repeatedly:
1
Measure the actual grid fre-
quency, and contact the local
power company for solutions
if the grid frequency is above
61 Hz.
2
Contact Sungrow Customer
Service
if
the
problem
persists.
Underfrequency
1
The mains AC frequency
is below 47 Hz.
2
The grid frequency is still
below
49
Hz
after
underfrequency.
Usually, the charger will be re-
connected to the grid once the
grid returns to normal. If the prob-
lem occurs repeatedly:
1
Measure the actual grid fre-
quency, and contact the local
power company for solutions
if the grid frequency is below
49 Hz.
2
Contact Sungrow Customer
Service
if
the
problem
persists.
EV
Leakage
current
The DC leakage current is
above 6 mA
1
Stop charging and pull out
the
charging
connector.
When the charger returns to
normal, try charge again. If
the problem occurs repeat-
edly, contact the EV manu-
facturer's customer service.
2
Stop charging and pull out
the charging connector. Con-
tact Sungrow Customer Serv-
ice if the problem persists.
Overcur-
rent
Output current is above 17.6 A
Charg-
er
Stuck
relay
The relay is stuck and cannot
be disconnected.
Restart the charger and try again.
If the problem occurs repeatedly,
contact Sungrow Customer
Service.
User Manual
Summary of Contents for AC011E-01
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Page 27: ...19 End figure 2 5 Pole mounted charger User Manual 2 Installation...