Delta Electronics RPI M6A Bedienungsanleitung

Installation and operation manual

RPI M6A

RPI M8A

RPI M10A

Europe

solarsolutions.delta-emea.com

United Kingdom

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

This manual applies to the following inverter models:

●RPI M6A (Delta part number RPI602FA0E1000)

●RPI M8A (Delta part number RPI802FA0E1000)

●RPI M10A (Delta part number RPI103FA0E1000)

With the rmware versions:

DSP: 1.48 / RED: 1.15 / COMM: 1.26 or higher

The Delta part number can be found on the type plate of the

inverter. The rmware versions are listed on the display in the

Inverter Info. menu.

Delta manuals undergo continuous revision in order to provide

you with complete information regarding the installation and oper-

ation of its inverters. Therefore, before starting installation work,

always consult solarsolutions.delta-emea.com to check whether

a newer version of the Quick Installation Guide or the Installation

and Operation Manual is available.

reserved.

This manual is intended for use by electrical installers who are

trained and approved for installation and commissioning of grid-

connected solar inverters.

The information in this manual is to be treated as condential and

no part of this manual may be reproduced without prior written

permission from Delta Electronics. The information in this manual

may not be used for any purpose not directly connected to the

use of the inverter.

All information and specications can be modied without prior

notice.

All translations of this manual that are not authorized by Delta

Electronics (Netherlands) B.V. must be marked with the words

"Translation of the original operating instructions."

Delta Electronics (Netherlands) B.V.

Tscheulinstraße 21

79331 Teningen

Germany

Authorized representative for this product in the EU:

Delta Electronics (Netherlands) B.V.

Zandsteen 15

2132 MZ Hoofddorp

Netherlands

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

Table of Contents

1. About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Purpose of this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1.2 Target audience of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3 How to use this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.4 Warning notices and warning symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5 Writing and labeling conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2. Basic safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3. Intended purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4. Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Components and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2.1 Overview of components and connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.3 Display, buttons, status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.4 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4.1 Overview of electrical connections M6A, M8A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.4.2 Overview of electrical connections M10A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.4.3 AC/DC disconnection switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.4.4 Power socket (AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.4.5 DC connection panel for solar modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4.6 RS485, 12-VDC connection, Wi-Fi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4.7 Digital inputs, dry contacts, external power-o󰀨 (EPO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.5 Mounting holes and grounding connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.6 Information on the type plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5. Planning the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.1 Mounting location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.2 Outdoor installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.3 Mounting clearances and air circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.4 Characteristic curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.5 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.6 Grid connection (AC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.1 Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.2 Residual current circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.3 Integrated residual current monitoring unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.4 Cable requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.5 Grounding the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.6 Permissible grounding systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.6.7 Requirements for the grid voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.7 Connecting the solar modules (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.7.1 Symmetrical and asymmetrical conguration of the DC inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.7.2 Separately connected DC inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.7.3 Parallel-connected DC inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.7.4 Connection of solar modules that are not grounded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.7.5 Connecting grounded solar modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.7.6 Connecting the module strings to the DC inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.7.7 DC cable requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.8 Connecting a data logger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.9 Connecting an external alarm unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.10 Connecting a ripple control receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.11 External power-o󰀨 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

5.12 Using external grid and system protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.13 Connecting a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.14 Tools and materials required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.14.1 For mounting the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.14.2 For connecting to the grid (AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.14.3 For connecting to the solar modules (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.14.4 For grounding the inverter housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.14.5 For wiring the RS485 connections, the digital inputs and the dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.14.6 For connection of a PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.14.7 Other parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.3 Connecting a data logger via RS485. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.1 Components of the RS485 card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.3.2 Preparing for work on the RS485 card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.3.3 Wiring for a single inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.3.4 Wiring for multiple inverters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

6.3.5 Completing work on the RS485 card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.4 Connecting the communication card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.4.1 Components of the communication card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.4.2 Preparing for work on the communication card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

6.4.3 Wiring for an external alarm unit with an external 12 VDC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

6.4.4 Wiring for an external alarm unit with an internal 12 VDC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

6.4.5 Wiring digital inputs and external power-o󰀨 (EPO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.4.6 Wiring digital inputs and external power-o󰀨 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.4.7 Completing work on the communication card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

6.5 Mounting the inverter and grounding the inverter housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

6.6 Connecting to the grid (AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.7 Connecting the solar modules (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

6.8 Attaching warning labels to the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

6.9 Connecting a PC via RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

7. Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

8. Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

8.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

8.2 "Inverter info." menu area (current settings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

8.3 "General settings" menu area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.3.1 Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

8.3.2 Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

8.3.3 Baud rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

8.4 "Installation settings" menu area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

8.4.1 Inverter ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

8.4.2 Insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

8.4.3 Country. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

8.4.4 Grid settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

8.4.5 DC Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

8.4.6 Dry contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

8.4.7 RCMU (Integrated residual current monitoring unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

8.4.8 EPO (External Shutdown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

8.4.9 AC connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

8.4.10 Anti-islanding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

8.4.11 Max. Power (Infeed Limiting). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101

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8.4.12 Loading the factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

8.4.13 Restart or reset the Wi-Fi module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

8.5 "Active/reactive power" menu area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

8.5.1 Power limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105

8.5.2 Regulating the active power via the grid frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

8.5.3 P (V) (regulating the active power via the grid voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

8.5.4 Constant cos phi (cos φ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

8.5.5 Cos phi (P) (regulate cos phi via active power) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

8.5.6 Constant Q (constant reactive power) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

8.5.7 Q (V) – Regulating reactive power via voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118

8.6 FRT (Fault Ride Through) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121

9. Measurements and statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

9.1 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

9.3 Event log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

9.3.1 Error events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125

9.3.2 Grid report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126

10. Error events and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128

10.1 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129

10.2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

10.3 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

11. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132

12. Replacing the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

13. Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142

1 About this manual

Purpose of this manual

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

1. About this manual

1.1 Purpose of this manual

This manual is part of the inverter and supports the installation,

commissioning and operation of the inverter.

Read this manual before working on the inverter.

Always follow the safety instructions and work instructions in this

manual. This will ensure that the inverter can be safely installed,

commissioned and operated.

Store this manual in a safe place in the vicinity of the inverter so

that it is always quickly available when working on the inverter.

Delta Electronics is not responsible for damage resulting from

failure to follow the safety and operating instructions set out in

this manual.

1.2 Target audience of this manual

This manual is intended for installers who are trained and

approved for the installation, commissioning and operation of

solar inverters in grid-connected solar systems.

1.3 How to use this manual

The structure of this manual, in addition to the symbols and text

markings used, is described in the chapter 1. About this man-

ual. The latter means that the contents are marked according to

their meaning. Thus operations, names of buttons and display

texts can be recognized even by their specic formatting.

The chapter 2. Basic safety instructions identies the safety

risks associated with using the inverter. You must read this chap-

ter in order to ensure safe handling of the installation, mainte-

nance and operation of the inverter.

The purposes for which the inverter may be used are described

in the chapter 3. Intended purpose . This section also describes

purposes for which the use of the inverter is not allowed, even

though in some cases they are similar to the purposes for which

the inverter may be used.

The chapter 4. Product overview gives a brief description of

the location and use of the most important components of the

inverter. In this section you will see for instance where the cables

for the grid and the solar modules are connected.

The chapter 5. Planning the installation describes the planning

of the installation and contains information about e󰀨ective prepa-

rations for installation of the inverter and avoiding delays in its

installation. This includes, where necessary, descriptions of the

operating behavior of the inverter. In this section you will learn

for instance what you must consider in selecting, calculating and

laying the cables.

The section 6. Installation gives detailed step-by-step instruc-

tions. This section contains a description, for example, of how

the sequence of work steps for connecting the cables is orga-

nized and how you can perform these steps directly. So that this

proceeds smoothly, you must rst read the section 4. Product

overview and 5. Planning the installation to ensure you have

prepared everything.

The section 7. Commissioning describes exclusively the com-

missioning procedure on the display which starts automatically as

soon as the inverter is supplied with power for the rst time.

Error messages, their cause and measures for their rectication

are listed in the section 10. Error events and troubleshooting.

Follow the instructions without fail. Do not attempt to correct an

error marked "Contact Delta Customer Service" yourself.

Maintenance work that you can perform yourself is described in

the section 11. Maintenance. All other maintenance work may be

performed only after consultation with Delta Customer Service.

The chapter Replacement 12. Replacing the inverter guides

you step-by-step through the work steps for replacing the

inverter.

A list of the most important technical data can be found in the

chapter 13. Technical Data. If you require technical values over

and above this, please contact Delta Customer Service.

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

1 About this manual

How to use this manual

1.4 Warning notices and warning symbols

This manual uses the following warning notices and symbols

to describe potential dangers and the measures necessary for

reducing these dangers.

Always follow the instructions in the warning notices.

Warning levels

DANGER

Indicates a dangerous situation that will always lead to

death or severe injuries if not avoided.

WARNING

Indicates a dangerous situation that can lead to death or

severe injuries if not avoided.

CAUTION

Indicates a dangerous situation that can lead to light or

medium injuries if not avoided.

ATTENTION

Indicates possible material damage that can be caused

to other objects by the inverter.

A notice provides information on e󰀩cient use of the

inverter.

If necessary, the warning labels are also marked with warning

symbols indicating the source of the danger.

High electrical voltages or currents

Hot surfaces

Heavy weight

General danger

1.5 Writing and labeling conventions

Some sections in this manual are specially labeled.

Labeling of work instructions

Work instructions that must be performed in a specic sequence

are numbered accordingly. Numbered work instructions must

always be performed in the specied sequence.

1. First step

→Where necessary, the result of the work step is de-

scribed here. This is used for checking that the work

step has been completed correctly.

2. Second step

3. Third step

þWork step is now complete.

If the work instructions consist of only a single step or the work

steps can be performed in any desired sequence then the work

steps are labeled as follows:

►Step

Labeling of inverter components

Buttons

ENT

Text on the inverter display Inverter info.

LEDs Alarm LED

LED Meaning

LED stays on.

LED ashes.

LED is o󰀨.

2 Basic safety instructions

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

2. Basic safety instructions

DANGER

Electric shock

Potentially fatal voltages are present in the

inverter during operation. When the inverter is

disconnected from all power sources, this volt-

age regrid in the inverter for up to 60 seconds.

You should therefore always carry out the fol-

lowing steps before working on the inverter:

1. Turn the AC/DC disconnector to the OFF

position.

2. Disconnect the inverter from all AC and DC

voltage sources and make sure that none

of the connections can be restored acciden-

tally.

3. Wait at least 60 seconds for the internal

capacitors to discharge.

DANGER

►Electric shock

►Potentially fatal voltages are present at the

DC connections of the inverter. When light

falls on the solar modules, they immediately

start to generate electricity. This also hap-

pens when light does not fall directly on the

solar modules.

►Never disconnect the inverter from the solar

modules when it is under load.

►Turn the AC/DC disconnector to the OFF

position.

►Disconnect the connection to the grid so

that the inverter cannot feed energy into the

grid.

►Disconnect the inverter from all AC and DC

voltage sources. Make sure that none of the

connections can be restored accidentally.

►Ensure that the DC cables cannot be

touched accidentally.

DANGER

Electric shock

The inverter has a high leakage current value.

►Always connect the ground cable rst, then

the AC and DC cables.

●To comply with IEC 62109-5.3.3 safety requirements and

avoid injury or material damage, the inverter must be in-

stalled and operated in accordance with the safety and op-

erating instructions set out in this manual. Delta Electronics

is not responsible for damage resulting from failure to follow

the safety and operating instructions set out in this manual.

●The inverter may only be installed and commissioned by

installers who have been trained and approved for the in-

stallation and operation of grid-connected solar inverters.

●All repair work on the inverter must be carried out by Delta

Electronics. Otherwise the warranty will be void.

●Warning notices, warning symbols and other markings

attached to the inverter by Delta Electronics must not be

removed.

●To avoid the risk of arcing, do not disconnect cables when

the inverter is under load.

●To prevent damage due to lightning strikes, follow the ap-

plicable regulations in your country.

●The surface of the inverter can get very hot during opera-

tion. Always wear safety gloves when touching the inverter

(except for the display).

●All connections must be su󰀩ciently sealed in order to en-

sure the IP65 rating. Seal any connections that will not be

used with the covering caps provided.

●Only equipment in accordance with SELV (EN 60950) may

be connected to the RS485 interfaces.

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

3 Intended purpose

3. Intended purpose

The inverter may be used only for the specied intended pur-

pose.

The intended purpose of the inverter is dened as follows:

●Use in stationary solar systems connected to the public

grid, for converting DC voltage generated by the solar

modules in the solar system into AC voltage that is fed into

the public grid.

●Use in conformance with the power specications and envi-

ronmental conditions specied by the manufacturer.

The following uses are regarded as not for the intended pur-

poses:

●Use in stand-alone mode, i.e. without a connection to the

public grid. The inverter has functions that prevent isolated

operation.

●Use in mobile solar systems

4 Product overview

Scope of delivery

Installation and Operation Manual for Power Inverter RPI M6A M8A M10A EU V4 EN 2020-07-13

4. Product overview

4.1 Scope of delivery

Part Quan-

tity‹

Figure / Description Part Qty Figure / Description

Inverter 1 AC plug 1

Amphenol C16-3

Mounting plate 1 M4 mounting

screws 2

For fastening the inverter to the

mounting plate and for grounding

the inverter housing. With washer,

spring washer and toothed lock

washer .

DC plug

M6A: 2

M8A: 2

M10A: 3

Multi-contact MC4 for DC+ for

4/6 mm2 (32.0017P0001-UR)

Quick Installation

Guide 1

Installations- und Betriebshandbuch

RPI M6A

RPI M8A

RPI M10A

Deutschland Österreich SchweizBelgien

solarsolutions.delta-emea.com

M6A: 2

M8A: 2

M10A: 3

Multi-contact MC4 for DC– for

4/6 mm2 (32.0016P0001-UR)

Check the delivery for completeness and all

components for damage before starting installa-

tion work.

Do not use any damaged components.

Keep the packaging.

Dieses Handbuch passt für folgende Modelle

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