Sungrow SG3KTL-EC User Manual page 74

9 Troubleshooting and Maintenance
Code of
Specification
fault
Inverter has checked that
the instantaneous sample
003 value of the grid voltage
exceeds
limit for some time.
The grid voltage has fallen
004 below inverter's allowable
lower limit.
The grid voltage is too
005
low.
Inverter has checked AC
007
overcurrent temporarily.
The grid frequency has
008 exceeded
allowable upper limit.
The grid frequency has
009 fallen
allowable lower limit.
010 Islanding
The DC component of AC
011 current
inverter limit.
Inverter has detected that
012
there is a leakage current.
The average grid voltage
is
014
permissible range for over
10 minutes.
The grid impedance is too
015
high.
64
the allowable
inverter
below inverter
has exceeded
not within the
Troubleshooting
Service Dept..
1. This is a short-term fault due to grid
condition. Wait a moment for inverter
recovery.
2. If the fault still exists, please contact
SUNGROW Service Dept..
1. Check the voltage of the grid.
2. If the grid voltage exceeds the
permissible range of inverter protective
parameters, ask utility grid company for
solution.
3. If the grid voltage is within the
permissible range, contact SUNGROW
Service Dept..
1. The inverter will resume if the output
current falls below the protective value.
2. If the fault still exists, please contact
SUNGROW Service Dept..
1. Check the frequency of the grid.
2. If the grid frequency exceeds the
permissible range of inverter protective
parameters, ask utility grid company for
solution.
3. If the grid frequency is within the
permissible range, contact SUNGROW
Service Dept..
1. Check whether AC circuit breaker is
triggered.
2. Check whether AC cables are all firmly
connected.
3. Check whether grid is not on service.
4. If all conditions are OK and this fault still
occurs in the
SUNGROW Service Dept..
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Check the PV strings for ground fault.
2. Contact SUNGROW if the fault reoccurs.
1. Check whether the grid is operating
normally.
2. Wait a moment for inverter recovery.
3. Contact SUNGROW if the fault reoccurs.
1. Check whether the grid is operating
normally.
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