Error Message & Trouble Shooting - Delta RPI-M8 Manual

9.2 Error Message & Trouble Shooting
ERROR
Message Possible cause
1. Actual utility frequency is over
AC Freq the OFR setting
High 2. Incorrect country setting
3. Detection circuit malfunction
1. Actual utility frequency is
under the UFR setting
AC Freq
2. Incorrect country or Grid
Low
setting
3. Detection circuit malfunction
Non-linear load in Grid and near
Grid Quality
to inverter
1. Wrong connection in
HW Connect
AC plug
Fail
2. Detection circuit malfunction
1. AC breaker is OFF
No Grid
2. Disconnect in AC plug
1. Actual utility voltage is under
the UVR setting
2. Incorrect country or Grid
setting
AC Volt Low
3. Wrong connections in AC plug
4. One or more internal fuses are
broken
5. Detection circuit malfunction
1. Actual utility voltage is over
the OVR setting
2. Utility voltage is over the Slow
AC Volt High OVR setting during operation
3. Incorrect country or Grid
setting
4. Detection circuit malfunction
Table 9-2 Error Message
1. Check the utility frequency on the inverter
terminal
2. Check country setting
3. Check the detection circuit inside the inverter
1. Check the utility frequency on the inverter
terminal
2. Check country & Grid setting
3. Check the detection circuit inside the inverter
Grid connection of inverter need to be far away
fromnon-linear load if necessary
1. Check the AC connection, must accords to
manual
2. Check the detection circuit inside the inverter
1. Switch on AC breaker
2. Check the connection in AC plug and make
sure it connects to inverter
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. 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
Action
50