Delta RPI H3A User Manual

9.2 Error Message & Trouble Shooting
ERROR
Message
E01: Grid Freq.
Over Rating
E02: Grid Freq.
Under Rating
E07:Grid Quality
E09: No Grid
1. Actual utility frequency is
higher than the OFR setting
2. Incorrect country setting
3. Detection circuit malfunction
1. Actual utility frequency is
lower than the UFR setting
2. Incorrect country or Grid setting
3. Detection circuit malfunction
Non-linear load in Grid and close
to inverter
1. AC breaker is OFF
2. AC plug Disconnected
3. Internal fuses are broken
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 away from non-linear load if
necessary
1. Switch on AC breaker
2. Check the connection in AC plug
and make sure it connects to
inverter
3. Replace fuses and check all
switching devices in boost &
inverter stages
E10: Grid Volt
Under Rating
1. Actual utility voltage is under the
UVR setting
2. Utility voltage is under the Slow
UVR setting during operation
3. Incorrect country or Grid setting
4. Detection circuit malfunction
1. Measure the utility AC voltage to
the inverter terminal.
2. Check the utility AC voltage
connection to the inverter terminal.
3. Check country & Grid setting
4. Check the detection circuit inside
the inverter
E13: Slow Over
Voltage Range
1. Actual utility voltage is over the
OVR setting
2. Incorrect country or Grid setting
3. Detection circuit malfunction
1. Check the utility voltage on the
inverter terminal
2. Check country & Grid setting
3. Check the detection circuit inside
the inverter
E26:Slow Over
Frequency Range
1. Actual utility frequency is over
the OFR setting
2. Incorrect country or grid 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
E27:Slow Under
Frequency Range
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
Possible cause Action
43
Measurement, Error Message and Trouble Shooting

Delta RPI H3A Specifications

General

Brand	Delta
Model	RPI H3A
Category	Inverter
Language	English