6 Troubleshooting Quick User Manual
24
The slave DSP detects
that the grid frequency
exceeds the protective
value.
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.
The slave DSP detects
that the leakage
current exceeds the
protective range.
1. Check whether there is a grounded fault
of the PV string.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
Communication alarm
between master DSP
and slave DSP.
1. Wait 1 minute for inverter recovery.
2. If the fault persists, contact Sungrow
Service Dept.
Alarm for no inverter
type setting.
Contact Sungrow Service Dept.
Stop the inverter and disconnect the AC &
DC cables. Check whether the fan duct has
been blocked. If not, replace fans.
Warning for reverse
cable connection of the
Sungrow Meter.
1. Check whether the power cable
connections are correct.
2. If “Existing Inverter” is set to “ON” via
LCD menu, check and ensure that its rated
power is correctly set.
3. For Sungrow single-phase meter, check
whether the CT clamp of the 1-phase
sensor is correctly placed.
Mismatched software
version.
Please contact Sungrow Service Dept.
The AC output current
exceeds the upper
limit.
1. The inverter will resume if the output
current falls below the protection value.
2. If the fault persists, please contact
Sungrow Service Dept.
Grid over-frequency.
The grid frequency
exceeds the protective
value, which is higher
than the protective
value of error 008.
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.
The grid frequency is
below the protective
value, which is lower
than the protective
value of error 009.
To Next Page
Loading...
Need help?
General