Delta RPI-M8 Manual page 53

FAULT
Message Possible cause
HW DC 1. Utility waveform is abnormal
Injection 2. Detection circuit malfunction
1. The ambient is over 60℃
Temperature
(The installation is abnormal)
High
2. Detection circuit malfunction
1. Ambient temperature >90℃
HW NTC1
or <-30℃
Fail
2. Detection circuit malfunction
1. Ambient temperature is
Temperature
<-30℃
Low
2. Detection circuit malfunction
1. Ambient temperature >90℃
HW NTC2
or <-30℃
Fail
2. Detection circuit malfunction
1. Ambient temperature >90℃
HW NTC3
or <-30℃
Fail
2. Detection circuit malfunction
1. Ambient temperature >90℃
HW NTC4
or <-30℃
Fail
2. Detection circuit malfunction
1. Insufficient input power
HW DSP 2. Auxiliary power circuitry
ADC1 malfunction
3. Detection circuit malfunction
1. Insufficient input power
HW DSP 2. Auxiliary power circuitry
ADC2 malfunction
3. Detection circuit malfunction
Table 9-4 Fault Message
1. Check the utility waveform. Grid connection of
inverter need to be far away from non-linear
load if necessary
2. Check the detection circuit inside the inverter
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
(RTM1)
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
(RTM1, RTB1, RTG1 and RTH1)
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
(RTB1)
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
(RTG1)
1. Check the installation ambient and
environment
2. Check the detection circuit inside the inverter
(RTH1)
1. Check the input voltage, must > 150Vdc
2. Check the auxiliary circuitry inside the inverter
3. Check the detection circuit inside the inverter
1. Check the input voltage, must > 150Vdc
2. Check the auxiliary circuitry inside the inverter
3. Check the detection circuit inside the inverter
Action
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