Sungrow SG2K5-S User Manual page 67

User Manual
Code Description
Grid over-frequency.
The
exceeds the protective
101 value, which is higher
than
value of error 008.
(stage II)
Grid under-frequency.
The grid frequency is
below the protective
102 value, which is lower
than
value of error 009.
(stage II)
Abnormal grounding.
Neither the PE terminal
on the AC connection
106 block nor the second
PE terminal on the
enclosure
connected.
Bus
over-voltage fault.
200 The
exceeds the protective
value.
The bus voltage is too
201
low.
PV
over-current fault.
202 The
current
protective value.
The PV input voltage
203 exceeds
voltage.
Input and output power
306
mismatching fault.
PV1 current sampling
315
fault.
PV2 current sampling
316
fault.
Leakage
320
sensor fault.
All
409
sensors fail.
grid frequency
the protective
the protective
is reliably
hardware
bus voltage
hardware
PV1 or PV2
exceeds the
the bus
current
temperature
8 Troubleshooting and Maintenance
Troubleshooting
1. Check the grid frequency.
2. If the grid frequency exceeds the
permissible range of inverter protection
parameters, ask utility grid company for
solution.
3. If the grid frequency is within the
permissible range, contact Sungrow Service
Dept.
Check whether there is a reliable inverter
grounding line, if there is access to the
ground, and the fault persists, please
contact Sungrow Service Dept.
1. Wait for inverter recovery after bus
voltage lower.
2. 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.
If the fault occurs repeatedly, contact
Sungrow Service Dept.
Check the functionality
connection terminals.
If the fault occurs repeatedly, contact
Sungrow Service Dept.
Channel sampling anomaly.
Contact Sungrow Service Dept.
Contact Sungrow Service Dept.
If the fault occurs repeatedly, contact
Sungrow Service Dept.
of the PV
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