Sungrow SG5KTL-MT User Manual page 67

User Manual
D D e e s s c c r r i i p p t t i i o o n n
A A l l a a r r m m I I D D
Output overload
The PV modules power
is extremely large and
016
out of the normal
operation range of the
inverter.
Grid voltage unbalance
Unbalanced three-
017
phase grid voltage is
detected.
019-022
024-025 Device abnormal
030-034
Overtemperature
The temperature inside
036 the inverter is extremely
high and out of the
permissible range.
High ambient
temperature
The ambient
037 temperature is
extremely high and out
of the permissible
range.
9 Troubleshooting and Maintenance
C C o o r r r r e e c c t t i i v v e e M M e e a a s s u u r r e e s s
1. Wait for the inverter to recover.
2. If the alarm persists, contact SUNGROW.
Generally, the inverter will be reconnected to
the grid after the grid recovers. If the alarm
occurs frequently:
1. Measure the grid voltage. If grid phase
voltage differs greatly, contact the utility grid
company for solutions.
2. If the voltage difference between the three
phases is within the permissible range of the
local utility grid company, modify the
parameter setting through the App.
3. If the alarm persists, contact SUNGROW.
1. Wait for the inverter to recover.
2. Disconnect the AC and DC switches or
circuit breakers, and connect them again after
15 minutes.
3. If the alarm persists, contact SUNGROW.
1. Check whether the inverter is directly
exposed to sunlight. If so, take some shading
measures.
2. Check and clean the air ducts.
3. Check whether the alarm 070 (fan alarm)
occurs through the App. If so, replace the
faulty fan.
1. Check whether the inverter is directly
exposed to sunlight. If so, take some shading
measures.
2. Check and clean the air ducts.
3. Check whether the alarm 070 (fan alarm)
occurs through the App. If so, replace the
faulty fan.
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