SMA SMC 5000A User manual

Sunny Mini Central

SMC 5000A / 6000A

Inverter for three-phase grid feeding

PV plants

Installation Guide Version 1.4 SMC50A_60A-11:SE3706

IME-SMC50A_60A

SMA Technologie AG Table of Contents

Installation Guide SMC50A_60A-11:SE3706 Page 3

Table of Contents

1 Notes on this manual. . . . . . . . . . . . . . . . . . . . . . 7

1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Explanation of the symbols used: . . . . . . . . . . . . . . . 7

2 The Sunny Mini Central . . . . . . . . . . . . . . . . . . . . 9

2.1 Appropriate usage . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Overview of the device . . . . . . . . . . . . . . . . . . . . . 10

2.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.5 Special features:. . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.5.1 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.5.2 Sunny Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

2.5.3 OptiCool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

2.5.4 Electronic Solar Switch (ESS). . . . . . . . . . . . . . . . . . . . . . . . . .17

3 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . 19

3.1 Handling of the Sunny Mini Central . . . . . . . . . . . . 19

3.2 Responsibility of the installer . . . . . . . . . . . . . . . . . 21

4 Mounting the unit. . . . . . . . . . . . . . . . . . . . . . . . 23

4.1 Required tools and materials . . . . . . . . . . . . . . . . . 23

4.2 Selecting an installation site . . . . . . . . . . . . . . . . . . 24

4.3 Mounting the Sunny Mini Central . . . . . . . . . . . . . . 27

5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . 31

5.1 Required tools and materials . . . . . . . . . . . . . . . . . 31

5.2 Connection procedure . . . . . . . . . . . . . . . . . . . . . 32

5.3 Connection of the DC input . . . . . . . . . . . . . . . . . . 32

5.3.1 Prerequisites: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

5.3.2 Connection of the PV strings . . . . . . . . . . . . . . . . . . . . . . . . . .34

Table of Contents SMA Technologie AG

Page 4 SMC50A_60A-11:SE3706 Installation Guide

5.3.3 Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

5.4 Connecting the AC output . . . . . . . . . . . . . . . . . . . 39

5.4.1 Prerequisites: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

5.4.2 Connecting the AC output. . . . . . . . . . . . . . . . . . . . . . . . . . . .45

5.4.3 The line circuit breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

6 The communications interface . . . . . . . . . . . . . . 51

6.1 Connecting RS232, RS485, Sunny Beam . . . . . . . . 52

6.1.1 Jumper functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

7 Commissoning of the Sunny Mini Central. . . . . . 55

7.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

7.1.1 Setting the language of the Sunny Display . . . . . . . . . . . . . . . .58

7.2 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8 Hand-over to the operator. . . . . . . . . . . . . . . . . 61

9 Opening and closing of the Sunny Mini Central. 63

9.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 63

9.2 Opening of the Sunny Mini Central . . . . . . . . . . . . 64

9.3 Closing of the Sunny Mini Central . . . . . . . . . . . . . 65

10 Troubleshooting / Problem solving . . . . . . . . . . 67

10.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

10.2 The Red LED Illuminates Continuously . . . . . . . . . . . 68

10.2.1 Ground Fault Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

10.2.2 :Checking the varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

11 Maintenance and cleaning. . . . . . . . . . . . . . . . . 73

11.1 Checking heat dissipation . . . . . . . . . . . . . . . . . . . 73

11.1.1 Cleaning the fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

11.1.2 Checking the fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

11.1.3 Cleaning the handle covers. . . . . . . . . . . . . . . . . . . . . . . . . . .77

12 Decomissioning . . . . . . . . . . . . . . . . . . . . . . . . . 79

12.1 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

SMA Technologie AG Table of Contents

Installation Guide SMC50A_60A-11:SE3706 Page 5

12.2 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

12.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

12.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . 81

13.1 Sunny Mini Central SMC 5000A . . . . . . . . . . . . . . 81

13.2 Sunny Mini Central SMC 6000A . . . . . . . . . . . . . . 84

13.3 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

13.4 Sunny Mini Central operating parameters . . . . . . . . 87

13.4.1 Explanation of the operating parameters . . . . . . . . . . . . . . . . .87

13.4.2 Parameter settings for Germany. . . . . . . . . . . . . . . . . . . . . . . .92

13.4.3 Country-specific parameter settings . . . . . . . . . . . . . . . . . . . . .94

13.4.4 Non-modifiable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . .95

13.5 Explanations and certificates . . . . . . . . . . . . . . . . . 96

13.5.1 CE declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . .96

13.5.2 SMA grid guard certificate . . . . . . . . . . . . . . . . . . . . . . . . . . .97

14 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

15 Contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

SMA Technologie AG

Seite 6 SMC50A_60A-11:SE3706 Installation Guide

SMA Technologie AG Notes on this manual

Installation Guide SMC50A_60A-11:SE3706 Page 7

1 Notes on this manual

1.1 Validity

These installation instructions cover correct installation and commissioning of type Sun-

ny Mini Central SMC 5000A and SMC 6000A SMA inverters.

1.2 Target group

Only trained electricians approved by the responsible power supply company may in-

stall and commission the inverters. The instructions are based on the assumption that

you, the installer, are familiar with electrical installations and know the corresponding

rules and regulations.

1.3 Explanation of the symbols used:

This symbol indicates a fact that when not observed could result in dama-

ge to components or danger to persons. Please read these sections espe-

cially carefully.

This symbol indicates a fact that is important for optimum operation of the product.

Read these sections carefully to ensure optimum operation of your product.

This symbol identifies an example.

Notes on this manual SMA Technologie AG

Page 8 SMC50A_60A-11:SE3706 Installation Guide

SMA Technologie AG The Sunny Mini Central

Installation Guide SMC50A_60A-11:SE3706 Page 9

2 The Sunny Mini Central

2.1 Appropriate usage

The Sunny Mini Central is a photovoltaic inverter and serves to feed solar energy from

solar modules converted using photovoltaics into a low voltage grid with a rated volta-

ge of 220 to 240 V and 50 Hz or 60 Hz.

Principle of a solar system with a Sunny Mini Central

SMC 5000A or SMC 6000A

Do not use the Sunny Mini Central for purposes other than those described

here. Alternative uses, modifications to the inverter as well as installing

components not recommended or sold by SMA void the warranty and

operating permission.

Photovoltaic

modules

Sunny Mini

Central

Distribution

Electricity grid

The Sunny Mini Central SMA Technologie AG

Page 10 SMC50A_60A-11:SE3706 Installation Guide

2.2 Overview of the device

The following diagram gives a schematic overview of the various components and con-

nection points inside the SunnySunny Mini Central Mini Central SMC 5000A and SMC

6000A with the cover removed:

DE F

MKI

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