9 Troubleshooting and Maintenance
User Manual
60
Code
Description
Troubleshooting
054
The slave DSP detects
that the grid frequency
exceeds
inverter
allowable upper limit.
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.
056
The slave DSP detects
that the leakage
current exceeds
inverter allowable
upper limit.
1. Check whether there is a grounded fault
of the PV string.
2. If the error occurs repeatedly, contact
Sungrow Service Dept.
059
Communication alarm
between master DSP
and slave DSP.
1. Wait 1 minute for inverter recovery.
2. If the fault persists, contact Sungrow
Service Dept.
061
Alarm for no inverter
type setting.
Contact Sungrow Service Dept.
070
Fans are defective
Stop the inverter and disconnect the AC &
DC cables. Check whether the fan duct has
been blocked. If not, replace fans.
084
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.
085
Mismatched software
version.
Please contact Sungrow Service Dept.
087
Arc detection module
abnormal alarm.
Please contact Sungrow Service Dept.
088
Arc fault on PV side.
1. Rotate the DC switch to “OFF” and check
whether there are damaged cables, loose
terminals or fuses, or poor contact. Replace
it if necessary.
2. Rotate the DC switch to “ON” and clear
the error via the App or LCD menu.
3. If the error occurs repeatedly, contact
Sungrow Service Dept.
089
The arc detection
function is disabled.
1. Enable the arc detection function via the
App or LCD menu.
2. If the error occurs repeatedly, contact
Sungrow Service Dept.
Summary of Contents for SG2K-S
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