Delta RPI-H3 Service Manual Page 46

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40
A05:
NTC Over
Temp
1. The ambient temp. is over
60
2. Detection circuit malfunction
1. Check the installation ambient and
environment
2. Check the detection circuit inside the
inverter
A06: Inside
NTC Circuit
Fail
1. Ambient temp. >100 or
<-24
2. Detection circuit malfunction
1. Check the installation ambient and
environment
2. Check the detection circuit inside the
inverter
A08: Heat Sink
NTC1 Fail
1. Boost heat sink temp.
>100 or <-24
2. Detection circuit
malfunction
1. Check the installation ambient and
environment
2. Check the detection circuit inside the
inverter.
A09: Heat Sink
NTC2 Fail
1. Inverter heat sink temp.
>100 or <-24
2. Detection circuit malfunction
1. Check the installation ambient and
environment
2. Check the detection circuit inside the
inverter
A15:DSP ADC
Vgrid/Iout Fail
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
A16:DSP ADC
Vin/Vbus Fail
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
A17:DSP ADC
Iin/Iboost Fail
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
A18:RED. ADC
Vgrid Fail
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
A19:DSP ADC
Iout_dc Fail
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
A20:
Efficiency
1. The calibration is incorrect
2. Current feedback circuit is
1. Check the accuracy of current and power
2. Check the current feedback circuit inside
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