Omron KP100L-OD - 12-2010, User Manual

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4 Maintenance Operations
4 - 6 Grid Connect Photovoltaic Inverter KP100L-OD-  USER’S MANUAL
E1-6: Islanding active
E1-7: Over voltage instantly (Grid)
Situation Islanding operation detected by active method due to error in the power from the grid.
Possible Cause
1. AC connection is not correct.
2. Grid condition is weak or unstable.
3. Other high-power consumption device is affecting the grid system.
4. Inverter is abnormal.
Remedy for User
1. If this problem occurs seldom (such as 1 time a day), no action is necessary.
Operation will restart automatically when the grid voltage returns to normal.


If the problem occurs frequently, do the actions below.
2. Find the device with high power consumption near your AC system.
3. Consult your utility power supplier, understand the grid conditions.
4. Ask help of your installer.
Remedy for Professional
1. Check the system connection including polarities and security first.
2. Find the devices with high power consumption near the AC system.
3. Consult the utility power supplier, understand the grid conditions.
4. Use Inverter software to monitor the frequency and voltage.
5. If the situation is not improved, please replace the Inverter.
Situation The grid voltage exceeds 280 V.
Possible Cause
1. AC connection is not correct.
2. Grid condition is weak or unstable.
3. Other high-power consumption device is affecting the grid system.
4. Inverter is abnormal.
Remedy for User
1. If this problem occurs seldom (such as 1 time a day), no action is necessary.
Operation will restart automatically when the grid voltage returns to normal.


If the problem occurs frequently, do the actions below.
2. Find the device with high power consumption near your AC system.
3. Consult your utility power supplier, understand the grid conditions.
4. Ask help of your installer.
Remedy for Professional
1. Check the system connection including polarities and security first.
2. Find the devices with high power consumption near the AC system.
3. Consult the utility power supplier, understand the grid conditions.
4. Use Inverter software to monitor the frequency and voltage.
5. If the situation is not improved, please replace the Inverter.