Sungrow SG3KTL-EC, Руководство пользователя

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9 Troubleshooting and Maintenance User Manual
64
Code of
fault
Specification Troubleshooting
Service Dept..
003
Inverter has checked that
the instantaneous sample
value of the grid voltage
exceeds the allowable
limit for some time. 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..
004
The grid voltage has fallen
below inverter’s allowable
lower limit. 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..
005
The grid voltage is too
low.
007
Inverter has checked AC
overcurrent temporarily.
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..
008
The grid frequency has
exceeded inverter
allowable upper limit. 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..
009
The grid frequency has
fallen below inverter
allowable lower limit.
010 Islanding
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 LCD screen, contact
SUNGROW Service Dept..
011
The DC component of AC
current has exceeded
inverter limit.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
012
Inverter has detected that
there is a leakage current. 1. Check the PV strings for ground fault.
2. Contact SUNGROW if the fault reoccurs.
014
The average grid voltage
is not within the
permissible range for over
10 minutes. 1. Check whether the grid is operating
normally.
2. Wait a moment for inverter recovery.
3. Contact SUNGROW if the fault reoccurs.
015
The grid impedance is too
high. 1. Check whether the grid is operating
normally.