String PV Grid-tied Inverter SPI-B-H Series (175K-250K)
User Manual
5Maintenance and Troubleshooting
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Ltd.
49
When the power generation value displayed on the monitoring platform is inconsistent with the
external measurement device, the user can correct the power generation value of the monitoring
platform according to the Kehua communication protocol.
The correction formula is: Total power generation compensation value = Measurement value of
measurement instrument - Monitoring platform displays the total power generation value.
5.2 Troubleshooting
The inverter is designed on the basis of the grid-tied operation standards and meets the requirements
of safety and EMC. Before provided to client, the inverter has been experienced for several rigorous
tests to ensure reliable and optimizing operation.
If some faults occur, the touch screen will show the corresponding alarm information. Under the
circumstances, the inverter may stop power generation. The fault situation is as shown in Table5-1.
Table5-1
Fault situation
NO.
Fault information
Deal way
1
Abnormal
grid
voltage
Check whether the safety regulations of the inverter meet the
requirements of the local grid connection and check the voltage of
the local power grid. If the above is normal, please contact your
local agency or service center.
2
Abnormal
grid
frequency
Check whether the safety regulations of the inverter meet the
requirements of the local grid connection and check the frequency
of the local power grid. If the above is normal, please contact your
local agency or service center.
3
Output
current
over-current
If the fault persists, please contact your local agency or service
center.
4
Abnormal
DC
component of output
current
If the fault persists, please contact your local agency or service
center
5
Abnormal
leakage
current
Check the insulation resistance of the positive and negative poles
of the battery board to the ground; check whether the environment
around the inverter is wet; check the grounding of the inverter. If
the above is normal, please contact your local agency or service
Summary of Contents for SPI-B-H Series SPI175K-B-H
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