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9.2 Error Message & Trouble Shooting
Table 9-2 Error Message
1. Actual utility frequency is over
the OFR setting
2. Incorrect country setting
3. Detection circuit malfunction
1. Check the utility frequency on the inverter
terminal
2. Check country setting
3. Check the detection circuit inside the inverter
1. Actual utility frequency is
under the UFR setting
2. Incorrect country or Grid
setting
3. Detection circuit malfunction
1. Check the utility frequency on the inverter
terminal
2. Check country & Grid setting
3. Check the detection circuit inside the inverter
Non-linear load in Grid and near
to inverter
Grid connection of inverter need to be far away
fromnon-linear load if necessary
1. Wrong connection in
AC plug
2. Detection circuit malfunction
1. Check the AC connection, must accords to
manual
2. Check the detection circuit inside the inverter
1. AC breaker is OFF
2. Disconnect in AC plug
1. Switch on AC breaker
2. Check the connection in AC plug and make
sure it connects to inverter
1. Actual utility voltage is under
the UVR setting
2. Incorrect country or Grid
setting
3. Wrong connections in AC plug
4. One or more internal fuses are
broken
5. Detection circuit malfunction
1. Check the utility voltage connection to the
inverter terminal
2. Check country & Grid setting
3. Check the connection in AC plug
4. Replace fuses (FUC1-3) and check all
switching devices in boost & inverter stages
5. Check the detection circuit inside the inverter
1. Actual utility voltage is over
the OVR setting
2. Utility voltage is over the Slow
OVR setting during operation
3. Incorrect country or Grid
setting
4. Detection circuit malfunction
1. Check the utility voltage on the inverter
terminal
2. Check the utility voltage on the inverter
terminal
3. Check country & Grid setting
4. Check the detection circuit inside the inverter
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