FAULT
Message
Possible cause
Action
HW DSP
ADC3
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit
malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Check the detection circuit inside the
inverter
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit
malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Check the detection circuit inside the
inverter
1. Insufficient input power
2. Auxiliary power circuitry
malfunction
3. Detection circuit
malfunction
1. Check the input voltage, must >150Vdc
2. Check the auxiliary circuitry inside the
inverter
3. Check the detection circuit inside the
inverter
HW Red
ADC1
HW Red
ADC2
HW
Efficiency
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
HW
COMM1
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
HW
COMM2
1. Red. CPU is idling
2. The communication
connection is disconnected
1. Check reset and crystal in Red. CPU
2. Check the connection between Red.
CPU and DSP
Ground
Current
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 a
external transformer if necessary
3. Check boost driver & boost choke
4. Check the detection circuit inside the
inverter
HW Connect
Fail
1. Power line is disconnected
inside the inverter
2. Current feedback circuit is
defective
1. Check the power lines inside the inverter
2. Check the current feedback circuit inside
the inverter
43
Error message and Trouble Shooting
Summary of Contents for RPI Series
Page 2: ......
Page 52: ......
Page 53: ...RPI M15A M20A The power behind competitiveness www deltaww com English 1 53 103...
Page 55: ...55...
Page 57: ...2 1 RPI M15A M20A 2 1 2 2 1 2 2 2 1 2 2 57...
Page 58: ...2 2 RPI M15A RPI M20A 1 1 pcs 1 pcs 1 pcs 1 pcs RPI 2 3 AC AC 4 5 DC 4 sets DC 2 1 58...
Page 59: ...2 3 2 3 2 3 59...
Page 61: ...PV array IEC 61730 Class A 3 AC DC 1 12 M6 3 3 2 3 2 M6 3 4 3 1 61...
Page 63: ...M6 Screw 6 Wall M6 Screw 6 3 3 3 4 M6 Screw 63...
Page 64: ...3 5 25 60 40 30 cm 20 cm 50 cm 30 cm 30 cm 3 5 64...
Page 89: ...6 1 6 1 PV Inverter 6 AC DC 6 1 89...
Page 90: ...6 2 6 3 6 2 6 3 6 3 4 90...
Page 97: ...8 AC DC OFF voltmeter AC DC AC DC RS 485 97...
Page 103: ...RPI M15A M20A The power behind competitiveness www deltaww com English 1 53 103...
Page 105: ...105...
Page 107: ...2 1 RPI M15A M20A 2 1 2 2 1 2 2 2 1 2 2 107...
Page 108: ...2 2 RPI M15A RPI M20A 1 1 pcs 1 pcs 1 pcs 1 pcs RPI 2 3 AC AC 4 5 DC 4 sets DC 2 1 108...
Page 109: ...2 3 2 3 2 3 109...
Page 111: ...PV array IEC 61730 Class A 3 AC DC 1 12 M6 3 3 2 3 2 M6 3 4 3 1 111...
Page 113: ...M6 Screw 6 Wall M6 Screw 6 3 3 3 4 M6 Screw 113...
Page 114: ...3 5 25 60 40 30 cm 20 cm 50 cm 30 cm 30 cm 3 5 114...
Page 139: ...6 1 6 1 PV Inverter 6 AC DC 6 1 139...
Page 140: ...6 2 6 3 6 2 6 3 6 3 4 140...
Page 147: ...8 AC DC OFF voltmeter AC DC AC DC RS 485 147...
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Page 154: ...Version 05190319 5013242902...