SMA SC 500HE-20 Installation User Manual

Page 4

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Table of Contents

SMA Solar Technology AG

4

SCxxxHE-20-IA-IEN111210

Installation Manual

6.2

Preparing the Station Floor for Installation . . . . . . . . . . . . . . . . 28

6.2.1

Position of the mounting holes for the Sunny Central . . . . . . . . . . . . . . . . . . 28

6.2.2

Drilling mounting holes in the station floor . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7

Transporting the Sunny Central . . . . . . . . . . . . . . . . . . . . 29

7.1

Center of gravity of the inverter . . . . . . . . . . . . . . . . . . . . . . . . 29

7.2

Transporting the Sunny Central with a Forklift . . . . . . . . . . . . . 30

7.3

Mounting the kick plates at the rear of the inverter. . . . . . . . . . 30

7.4

Transporting the Sunny Central with a Pallet Truck. . . . . . . . . . 31

7.5

Transporting the Sunny Central with a Crane. . . . . . . . . . . . . . 32

8

Installation of the Sunny Central. . . . . . . . . . . . . . . . . . . . 34

8.1

Sealing the exhaust air zone . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8.2

Fastening the Inverter on the Foundation . . . . . . . . . . . . . . . . . 34

8.3

Disassembling the Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8.4

Removing the Transport Lock from the Inverter Cabinet . . . . . . 35

9

AC and DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.1

Safety during Cable Connection . . . . . . . . . . . . . . . . . . . . . . . 36

9.2

Connection Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.3

Connection area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

9.3.1

DC Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

9.3.2

DC Busbar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.4

Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

9.4.1

Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

9.4.2

Cleaning the contact surfaces of terminal lugs and
connection lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

9.4.3

Connecting cables with 1 terminal lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.4.4

Connecting cables with 2 terminal lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9.5

Connecting the PE cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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