Sungrow SG5KTL-MT User Manual page 69

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
048-050
053-056 Device abnormal
059-060
070 Fan alarm
SPD alarm (AC)
071
SPD alarm (DC)
072
076 Device abnormal
PV string abnormal
078-079
AFCI abnormal: Arc
087 fault detection module
abnormal
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. Disconnect the AC and DC switches or
circuit, and connect them after 15 minutes.
3. If the alarm persists, contact SUNGROW.
1. Check whether the fan operates normally
and whether it is blocked. If so, clean it.
2. If a fan does not operate normally, stop and
disconnect the inverter to replace the fan.
Check the SPD, and replace it or the whole
inverter if necessary.
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 if the corresponding PV string needs
to be connected first.
If not, ignore the alarm.
If so, check whether it is connected reliably.
2. Check if the DC fuse, if necessary, belonging
to the PV string is damaged. If so, replace the
fuse.
3. If the alarm persists, contact SUNGROW.
*The alarm ID 078 and ID 079 are
corresponding to PV 1 to PV 2 respectively.
The inverter can operate normally.
1. Check whether the related cable connection
and terminals are abnormal, and check
whether the ambient environment is abnormal.
If so, take corrective measures.
2. If the alarm persists, contact SUNGROW.
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