Delta RPI-M15A

Other manuals for Delta RPI-M15A

Quick Installation Guide24 pages

Manual63 pages

Questions and Answers:

T
Taylor NelsonSep 1, 2025
What causes 'Ground Current' error on Delta RPI-M15A?
- C
  Christian AlvaradoSep 1, 2025
  A 'Ground Current' error on a Delta Inverter may arise from several factors: a PV array insulation fault, so check the insulation of Solar inputs. It could also be due to large PV array capacitance between Plus to Ground or Minus to Ground, so check the capacitance (+ GND & - GND), and it must be less than 2.5uF. Install a external transformer if necessary. Additionally, either side of the boost driver or boost choke might malfunction, so check boost driver & boost choke. Finally, a detection circuit malfunction could be the cause; in that case, check the detection circuit inside the inverter.
L
laurataylorSep 12, 2025
What does 'HW COMM2' mean on my Delta Inverter?
- S
  Sarah MorganSep 12, 2025
  A 'HW COMM2' error on your Delta Inverter may indicate that the Red. CPU is idling, so check reset and crystal in Red. CPU. It could also mean that the communication connection is disconnected, so check the connection between Red. CPU and DSP.
J
Jill SolisAug 30, 2025
What to do if Delta RPI-M15A Inverter shows 'Solar1 Low' error?
- B
  Breanna SingletonAug 30, 2025
  If your Delta Inverter displays a 'Solar1 Low' error, first check the Solar1 voltage connection to the inverter terminal, as the actual Solar1 voltage may be under the limit. If the actual Solar1 voltage is close to "0", some devices inside the inverter may be damaged, so check all switching devices in boost1. Finally, a detection circuit malfunction could also be the cause; in that case, check the detection circuit inside the inverter.
R
roberto27Sep 13, 2025
What does 'Relay Test Short' mean on my Delta RPI-M15A Inverter?
- F
  Frank RogersSep 13, 2025
  A 'Relay Test Short' error on your Delta Inverter can occur if one or more relays are sticking, so replace the defective relay(s). It may also occur if the driver circuit for the relay malfunction, so check the driver circuit inside the inverter.
A
Andrew KelleySep 13, 2025
What does 'RCMU Fail' mean on my Delta RPI-M15A Inverter?
- K
  Kathleen ParkerSep 13, 2025
  A 'RCMU Fail' error on your Delta Inverter may indicate that the RCMU is disconnected, so check the RCMU connection inside the inverter. It may also be due to a detection circuit malfunction, so check the detection circuit inside the inverter.
M
Marc HarperSep 18, 2025
What does 'HW CT A Fail' mean on my Delta RPI-M15A Inverter?
- U
  umitchellSep 18, 2025
  A 'HW CT A Fail' error on your Delta Inverter may be caused by a broken test current loop, so check the connection of WC3 to CNC16. It may also indicate that CSC1 is defective, so replay CSC1 with new one. Finally, a detection circuit malfunction could be the reason; in that case, check the detection circuit inside the inverter.
S
Sean GillSep 23, 2025
What does 'Grid Quality' mean on my Delta RPI-M15A Inverter?
- M
  Mr. Alexander KimSep 23, 2025
  The 'Grid Quality' error on your Delta Inverter is caused by Non-linear load in Grid and near to inverter. Grid connection of inverter need to be far away from non-linear load if necessary.
T
Travis HuynhAug 27, 2025
How to fix 'AC Freq High' error on Delta RPI-M15A Inverter?
- S
  Sara DelgadoAug 27, 2025
  An 'AC Freq High' error on your Delta Inverter can be due to several reasons. The actual utility frequency might be over the OFR setting; check the utility frequency on the inverter terminal. An incorrect country setting could also cause this issue, so verify the country setting. Lastly, a detection circuit malfunction could be the cause; in that case, check the detection circuit inside the inverter.
N
Nicholas EdwardsAug 26, 2025
What to do if my Delta RPI-M15A displays 'Temperature High'?
- D
  David BellAug 27, 2025
  If your Delta Inverter is showing a 'Temperature High' error, it may be due to the ambient temperature exceeding 60 degrees. Check the installation environment. Another potential cause is a detection circuit malfunction, which would require checking the detection circuit inside the inverter.
C
Christopher WallerAug 25, 2025
Why is my Delta RPI-M15A Inverter showing 'AC Volt Low'?
- N
  Nicole WoodsAug 26, 2025
  The 'AC Volt Low' error on your Delta Inverter may be triggered by several factors. First, the actual utility voltage might be below the UVR setting; if so, check the utility voltage connection at the inverter terminal. Second, incorrect country or Grid settings can cause this, so check these settings. Third, there may be wrong connections in the AC plug, so verify the connection in the AC plug. Lastly, a detection circuit malfunction could be the cause; in that case, check the detection circuit inside the inverter.

Delta RPI-M15A Specifications

General

Nominal AC Voltage	400 V
Protection Degree	IP65
Weight	33 kg
MPPT Voltage Range	200 V - 850 V
Rated AC Output Power	15000 W
Max. AC Output Power	16500 W
AC Voltage Range	320 V - 480 V
Nominal Frequency	50 Hz / 60 Hz
Operating Temperature Range	-25 °C ... +60 °C (Derating > 45 °C)
Frequency	50/60 Hz
Operating Temperature	-25 °C ... +60 °C (Derating > 45 °C)
Max. DC Input Power	15000 W