Sungrow SG2K5-S User Manual page 65

User Manual
Code Description
021 PV1 input over-current.
022 PV2 input over-current.
PV1
028
connection.
PV2
029
connection.
The
036
radiator is too high.
The
037 temperature of inverter
is too high.
Relay fault on the grid
038
side.
The
039 resistance of PV to
earth is low. (ISO-flt)
Leakage
041
sampling fault.
Inner
under-temperature
fault.
043
The
temperature inside the
inverter is too low.
044 Inverter self-test fault.
PV1
045
fault.
PV2
046
fault.
Phase
048
sampling fault.
reverse
reverse
temperature of
internal
insulation
current
ambient
boost circuit
boost circuit
current
8 Troubleshooting and Maintenance
Troubleshooting
Check the layout and the wiring of PV1
input.
Check the layout and the wiring of PV2
input.
Check the cable connections of PV1.
Check the cable connections of PV2.
1. Check whether the ambient temperature
shown on the screen is too high. Wait a
moment for inverter recovery.
2. Check whether there is enough space for
convection.
3. Check whether the inverter is in direct
sunlight.
4. Check whether the fan is normal.
Replace it if necessary.
5. Clean the air inlets.
6. If the fault persists, please contact
Sungrow.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
1. Check whether there is a reliable inverter
grounding line.
2. Check whether one of the PV strings is
short-circuited with ground.
3. Wait a moment for inverter recovery.
4. If the fault occurs repeatedly, contact
Sungrow Service Dept.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
The inverter will recover once the ambient
temperature rises above -25℃.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
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