Fault
Message
F15: HW ADC1
F16: HW ADC2
F17: HW ADC3
F19: HW ADC5
1. Auxiliary power circuitry malfunction
2. Detection circuit malfunction
1. Auxiliary power circuitry malfunction
2. Detection circuit malfunction
1. Auxiliary power circuitry malfunction
2. Detection circuit malfunction
1. Auxiliary power circuitry malfunction
2. Detection circuit malfunction
1. Check the auxiliary circuitry inside
the inverter
2. Check the detection circuit inside
the inverter
1. Check the auxiliary circuitry inside
the inverter
2. Check the detection circuit inside
the inverter
1. Check the auxiliary circuitry inside
the inverter
2. Check the detection circuit inside
the inverter
1. Check the auxiliary circuitry inside
the inverter
2. Check the detection circuit inside
the inverter
F20:
Efficiency
Abnormal
1. The calibration is incorrect
2. Current feedback circuit is defective
1. Check the accuracy of current and
power
2. Check the current feedback circuit
inside the inverter
F23:
Comm. Fault
(Dis.)
1. DSP is idling
2. The communication connection is
disconnected
3. The communication circuit
malfunction
1. Check reset and crystal in DSP
2. Check the connection between
DSP and COMM
3. Check the communication circuit
F24:
RCMU Over Rating
1. PV array insulation fault
2. Large PV array capacitance
between Plus to Ground or Minus
to Ground
3. Either side of boost driver or boost
choke malfunction
4. Detection circuit malfunction
1. Check the insulation of Solar inputs
2. Check the capacitance (+ <-> GND
& - <-> GND), must < 2.5uF. Install
an external transformer if necessary
3. Check boost driver & boost choke
4. Check the detection circuit inside
the inverter
F27:
RCMU Circuit Fail
1. RCMU is disconnected
2. Detection circuit malfunction
1. Check the RCMU connection inside
the inverter
2. Check the detection circuit inside
the inverter
F28:
Relay Test Short
1. One or more relays are sticking
2. The driver circuit for the relay
malfunction
1. Replace the defective relay(s)
2. Check the driver circuit inside the
inverter
F29:
Relay Test Open
1. One or more relays are abnormal
2. The driver circuit for the relay
malfunction
3. The detection accuracy is not
correct for Vgrid and Vout
1. Replace the defective relay(s)
2. Check the driver circuit inside the
inverter
3. Check the Vgrid and Vout voltage
detection accuracy
Possible cause
Action
48
Error Message and Trouble Shooting
Содержание H5E 220
Страница 1: ...H5E_220 Operation and Installation Manual Grid tie Transformerless Hybrid Inverter www deltaww com...
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