Sungrow SG2K5-S User Manual page 66

8 Troubleshooting and Maintenance
Code Description
The slave DSP detects
that the grid voltage
053
exceeds
allowable upper limit.
The slave DSP detects
that the grid frequency
054
exceeds
allowable upper limit.
The slave DSP detects
that
056 current
inverter
upper limit.
Communication alarm
059 between master DSP
and slave DSP.
Alarm for no inverter
061
type setting.
070 Fans are defective
Warning for reverse
084 cable connection of the
Sungrow Meter.
Mismatched
085
version.
The AC output current
100 exceeds
limit.
58
inverter
inverter
the leakage
exceeds
allowable
software
the upper
Troubleshooting
1. Check the grid voltage.
2. If the grid
permissible range of inverter protection
parameters, ask utility grid company for
solution.
3. If the grid voltage is within the
permissible range, contact Sungrow Service
Dept.
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.
1. Check whether there is a grounded fault
of the PV string.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
1. Wait 1 minute for inverter recovery.
2. If the fault persists, contact Sungrow
Service Dept.
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.
1. Check whether
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. Refer to "5.6.1
On the Meter Side".
Please contact Sungrow Service Dept.
1. The inverter will resume if the output
current falls below the protection value.
2. If the fault persists, please contact
Sungrow Service Dept.
User Manual
voltage exceeds
the power
the
cable