Delta RPI Series Specification sheet

RPI-M15A/M20A

Operation and Installation Manual

Grid-tie Transformerless Solar Inverter

The power behind competitiveness

www.deltaww.com

English 1

103

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1. General Information

1.1. About this Manual

1.2. Product Description

1.3. Additional Information

2. Product Overview

2.1. Unpack the Inverter

2.2. Checking Unit and Accessories

2.3. Product Label

2.4. Exterior Objects

3. Installation

4. Wiring

4.1. Preparation before Wiring

4.2. AC Grid Connection: 3-Phase+PE or 3-Phase+N+PE

4.2.1. Required Protective Devices and Cable Cross-sections

4.3. DC Connection (from PV Array)

4.4. Communication Module Connections

4.4.1. RS-485 Connection

4.4.2. EPO Functions

4.4.3. Dry Contact Connection

5. Turn On PV Inverter

5.1. LCD Flow Chart

5.2. First startup

5.2.1. Home Page

5.2.2. Power Meter

5.2.3. Energy Log

5.2.4. Event Log

5.2.5. Operation Data

5.2.6. Inverter Information

5.2.7. Settings

5.2.7.1. Personal Settings

5.2.7.2. Coefficient Settings

5.2.7.3. Install Settings

5.2.7.4. Active/Reactive Power Control

5.2.7.4.1. Active Power Control – Power Limit

5.2.7.4.2. Active Power Control – Power vs. Frequency

5.2.7.4.3. Active Power Control – P(V)

5.2.7.4.4. Reacitve Power Control – Constant cosφ

5.2.7.4.5. Reacitve Power Control – cosφ (P)

5.2.7.4.6. Reacitve Power Control – Constant Reactive Power

5.2.7.4.7. Reacitve Power Control – Q(V)

5.2.7.5. FRT (Fault ride through)

6.Maintenance

6.1. Clean Fan

6.2. Replace Fan

6.3. Clean Air Outlets

7.Error message and Trouble Shooting

8.De-Commissioning

9.Technical Data

10.Assembly Note

Contents

Safety Instructions

This manual uses the following instructions for conveying important safety related information.

CAUTION !

Machine and equipment damage may occur if this hazardous situation is not

avoided.

WARNING !

Death and serious injury may occur if this hazardous situation is not

avoided.

Repair work on the device should ONLY be carried out by the manufacturer.

No user serviceable parts inside.

In Australia, installation and maintenance work shall be conducted by qualified

electrician and shall comply with Australian Regulations.

DANGER !

To avoid risk of electrical shock, do not open the solar inverter. Death and

serious injury will occur if this hazardous situation is not avoided.

WARNING ! BURN HAZARD

The unit may reach high temperatures and the device surface can

become quite hot. Sufficient cooling time is necessary for optimal yield.

1.General Information

1.1. About this Manual

This manual is to provide the explanation and procedures for installing,

operating, maintaining, and troubleshooting the below solar inverters:

RPI-M15A/ RPI-M20A.

1.2. Product Description

This device is a 3-phase grid-tied solar inverter which does not support off-

grid functionality.

The operation of solar inverter is shown as the Figure 1-1.Inverters convert

the DC input power supplied from the PV Array into 3-phase AC output power

to Grid.

Figure 1-1 Solar system operation illustration

1.3. Additional Information

For more detailed or other related product information, please visit

http://www.deltaww.com

PV Array Electrical Grid

Solar Inverter

DC Distribution

box

3PH AC Distribution

box

Surge arrestor

Fuse

DC switch

Surge arrestor

AC breaker

3 phase, N, PE

General Information

Figure 2-1 Unpack the inverter

The unpacking procedure of RPI-M15A / M20A is shown as Figure 2-1.

2.Product Overview

2.1. Unpack the Inverter

2.2. Checking Unit and Accessories

Unforeseeable events causing damage or movement may occur during

shipment. Please check following items upon receiving your inverter.

• Check the damage on the packaging.

• Check if all the accessories are in the package, the standard accessories

are list as Table 2-1 & Figure 2-2.

•

Check the model number and the serial number on the packaging is identical

with the model number and serial number on the unit itself.

If there is any visible damage to the inverter/accesories or any damage to

the packaging, please contact your inverter supplier.

Product Overview

Figure 2-2 Packing list

RPI-M15A/ RPI-M20A

Object Qty Description

1 PV Inverter 1 pcs

1 pcs

RPI series solar inverter

2 User Manual

The Instruction to provide the information of safety,

Installation, specification, etc.

3 AC Plug

Mounting Bracket

Connector for AC connection

Wall mounting bracket to mount the solar inverter

on the wall.

DC Plug 4 sets Connector for DC connection

Table 2-1 Packing list

Caution: If there is any visible damage to the inverter/accesories or any damage to

the packaging, please contact your inverter supplier.

①③

②⑤④

Product Overview

2.3. Product Label

Users can identify the model number and the specifications by the information

on the product label. The location for the label please see Figure 2-3.

Figure 2-3 Product label

Product Overview

2.4. Exterior Objects

The Inverter’s exterior objects are shown in Figure 2-4. The detailed input/

output interfaces illustration is shown in Figure 2-5. Different models have

different number of DC input strings.

Label

DC Switch

Communication Connetions

LCD/LED Display and Buttons

Air outlets

DC Connectors

Fan*1 or *2

AC Connectors

Figure 2-4 Inverter’s exterior objects

Figure 2-5 Input/output panel

Communication

-RS-485 *2

-EPO *1

-Dry Contact *1

DC1 DC2

Fan(s) : 2 pcs

AC Connector

230/400Vac, 3Ph

DC Switch

String1

String2

String3

String4

Product Overview

Figure 3-1 Mount Dimention

CAUTION !

The unit should not be installed in direct sunlight.

WARNING !

• Do not install the unit near or on flammable surfaces.

• Please mount the unit tightly on a solid/smooth surface.

• PV array that have an IEC 61730 Class A rating, or external insulation

transformer shall be installed at grid side.

3.Installation

This unit is designed to be wall-mounted. Please ensure the installation is

perpendicular to the floor and the AC plug at the bottom. Do not install the

device on a slanting wall.

To mount the inverter on the wall, please follow the procedure below:

1.Screw the mounting bracket on the wall with 12 M6 Phillips head screws.

Please refert to Figure 3-3.

2.Attach the inverter to the mounting bracket.

3.Fix the inverter with 2 M6 Phillips head screws.

Please refer to Figure 3-4.

Installation

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