SMA SC 500CP-10-JP Installation
Installation Manual
SUNNY CENTRAL 500CP-JP / 630CP-JP / 800CP-JP
SCCP-JP-IA-A4-en-12 | 98-103100.02 | Version 1.2 ENGLISH
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© 2004 to 2014 SMA Solar Technology AG. All rights reserved
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SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Skills of Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Personal Protective Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 PV System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.1 Design and Function of the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.2.2 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2.3 Symbols on the Product. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2.4 Touch Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.2.5 Key Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.3 Remote Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 External Fast Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5 Grounding Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.6 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Preparation for Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Selecting a Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1.1 Requirements for the Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.1.2 Dimensions of a Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
6.1.3 Minimum Clearances for Outdoor Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
6.1.4 Minimum Clearances for Installation in Electrical Equipment Rooms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
6.1.5 Requirements for Foundation and Cable Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
6.1.6 Requirements for Cable Routing between MV Transformer and Sunny Central . . . . . . . . . . . . . . . . . . . . . . . .27
6.2 Preparation for Mounting without Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2.1 Position of the Mounting Holes on the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
6.2.2 Drilling Mounting Holes in the Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
6.3 Preparation for Mounting on a Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7 Transporting the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1 Safety during Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2 Center of Gravity of the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3 Mounting the Kick Plates at the Rear of the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.4 Transporting the Sunny Central Using a Crane Fork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.5 Transporting the Sunny Central Using a Forklift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.6 Transporting the Sunny Central Using a Pallet Truck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.7 Transporting the Sunny Central Using a Crane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.7.1 Disassembling the Roof of the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
7.7.2 Transporting the Sunny Central Using a Crane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
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Table of Contents SMA Solar Technology AG
7.7.3 Mounting the Roof of the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8 Installing the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.1 Attaching the Sunny Central without Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.2 Installing the Sunny Central on a Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.3 Disassembling the Panels on the Connection Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.4 Removing the Transport Lock from the Inverter Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.5 Mounting the Silencing Baffle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.6 Replacing the Desiccant Bag in the Inverter Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8.7 Mounting the Ventilation Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9 Grounding Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
9.1 Cable and Terminal Lug Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10 DC Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
10.1 Safety during DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10.2 DC Connection with DC Fuse Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.2.1 Cable and Terminal Lug Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
10.2.2 Connection Area with DC Fuse Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
10.2.3 Connection with One Terminal Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
10.2.4 Connection with Two Terminal Lugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
10.2.5 Connecting the SMB Connection Kit to DC Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
10.2.6 Connecting the DC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
10.3 DC Connection with DC Busbar Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.3.1 Cable and Terminal Lug Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
10.3.2 Connection Area with DC Busbar Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
10.3.3 Connection with One Terminal Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
10.3.4 Connection with Two Terminal Lugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
10.3.5 Connecting the DC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
11 AC Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
11.1 Safety during AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
11.2 Connecting the AC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
11.2.1 Cable and Terminal Lug Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
11.2.2 Connection with One Terminal Lug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
11.2.3 Connection with Two Terminal Lugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
11.2.4 Connecting the AC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
12 Cable Connection of External Devices and Connections in the Interface Cabinet . . . . . . . . . .58
12.1 Connection Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12.2 Leading the Cables into the Interface Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12.3 Connecting the Cables in the Interface Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
12.3.1 Connecting the Cables to the Connecting Terminal Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
12.3.2 Connecting the Data Cables of the Sunny String-Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
12.3.3 Connecting the Remote Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
12.3.4 Connecting the External Setpoint Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
12.3.5 Connecting the Transformer Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
12.3.6 Connecting the External Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
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12.3.7 Connecting the External Fast Stop Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
12.3.8 Connecting the Cable for Querying the Inverter Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
13 Setting up a System Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
13.1 Structure of a System Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
13.2 Position of the Communication Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
13.2.1 Connection Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
13.2.2 Setting up a System Network with Optical Fibers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
13.2.3 Setting up a System Network with Copper Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
14 Disconnecting the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
15 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
15.1 Sequence of Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
15.2 Checking the Sunny Central Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
15.3 Inserting Fuses and Disconnection Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
15.4 Mounting the Protective Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
15.5 Checking the Voltages on the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
15.5.1 Checking the DC Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
15.5.2 Checking the AC Grid Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
15.5.3 Checking the Internal Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
15.6 Checking Grid Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
15.7 Important Measures in Case of Non-Utilized Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
15.8 Switching On the Voltage Supply and the AC Circuit Breaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
15.9 Mounting the Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
15.10 Switching On the Sunny Central. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
16 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
17 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
17.1 Sunny Central 500CP‑JP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
17.2 Sunny Central 630CP‑JP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
17.3 Sunny Central 800CP‑JP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
18 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Installation Manual SCCP-JP-IA-A4-en-12 5
1 Information on this Document SMA Solar Technology AG
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1 Information on this Document
Validity
This document is valid for the following device types from production version A4:
• SC 500CP-10-JP (Sunny Central 500CP-JP)
• SC 630CP-10-JP (Sunny Central 630CP-JP)
• SC 800CP-10-JP (Sunny Central 800CP-JP)
The production version is indicated on the type label.
Illustrations in this document are reduced to the essential and may deviate from the real product.
Target Group
This document is intended for qualified persons. Only persons with the appropriate skills are allowed to perform the tasks
described in this document (see Section2.3 "Skills of Qualified Persons", page11).
Additional Information
Links to additional information can be found at www.SMA-Solar.com.
Document title Document type
Installation Requirements – Important information on transportation and installation for
Sunny Central 500CP-JP ⁄ 630CP-JP ⁄ 800CP-JP
Important Requirements for Medium-Voltage Transformers and Transformers for Auxiliary
Power Supply for SUNNY CENTRAL Inverters of the CP XT and CP-JP Production Series
Cable Set ‒ Requirements for and Laying of Cables between Sunny Central CP and
Transformer Compact Station
Communit - Communication Distributor for Large-Scale PV Power Plants Technical Information
Sunny Main Box ‒ Connecting the DC Cabling for PV Inverters Technical Information
Sunny String-Monitor Technical Description
Sunny String-Monitor SSMxx-21 Technical Information
Sunny Central Communication Controller Technical Information
Q at Night Technical Information
Technical Information
Technical Information
Technical Information
Symbols
Symbol Explanation
Indicates a hazardous situation which, if not avoided, will result in death or serious injury
Indicates a hazardous situation which, if not avoided, can result in death or serious injury
Indicates a hazardous situation which, if not avoided, can result in minor or moderate injury
Indicates a situation which, if not avoided, can result in property damage
Information that is important for a specific topic or goal, but is not safety-relevant
☐ Indicates a requirement for meeting a specific goal
☑ Desired result
✖ A problem that might occur
6 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 1 Information on this Document
Typographies
Typography Use Example
bold • Display messages
• Elements on a user interface
• Parameters
•Terminals
•Slots
• Elements to be selected
• Elements to be entered
• If the remote shutdown
Nomenclature
Complete designation Designation in this document
Sunny Central Communication Controller SC-COM
Sunny Central Inverter
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current ‒
DC Direct Current ‒
function is not used, set the
parameter ExtStrStpEna
to Off during
commissioning.
GFDI Ground Fault Detection Interrupti ‒
MPP Maximum Power Point ‒
MSL Mean Sea Level ‒
OF Optical Fiber ‒
PC Personal Computer ‒
PV Photovoltaics ‒
Installation Manual SCCP-JP-IA-A4-en-12 7
2 Safety SMA Solar Technology AG
2 Safety
2.1 Intended Use
The Sunny Central is a PV inverter which converts the direct current generated in the PV modules into grid-compliant
alternating current. An external MV transformer fitted downstream feeds the generated alternating current into the utility
grid.
The Sunny Central is suitable for outdoor installation provided that the specified safety distances are maintained.
The Sunny Central for station installation is suitable exclusively for indoor installation provided that the specified safety
distances are maintained. The enclosure conforms with degree of protection IP54. The Sunny Central is classified under
Class 4C2 as per EN 60721-3-4 and is suitable for operation in a chemically active environment.
The maximum permissible DC input voltage of the Sunny Central must not be exceeded.
The Sunny Central must only be operated in conjunction with a suitable MV transformer. The MV transformer must be
designed for voltages that arise during pulsed mode of the Sunny Central. The maximum AC voltages to ground are as
follows:
• The voltages can reach a maximum of ±800 V to ground for the inverter type SC 500CP-JP.
• The voltages can reach a maximum of ±1,450 V to ground for the inverter type SC 630CP-JP.
• The voltages can reach a maximum of ±1,450 V to ground for the inverter type SC 800CP-JP.
Do not disconnect or adjust settings that affect grid management services without first obtaining approval from the grid
operator.
Alterations to the product, e.g. modifications or conversions, are only permitted with the express written permission of
SMA Solar Technology AG. Making unauthorized changes will void the warranty and will normally result in invalidation
of the operating permit. SMA Solar Technology AG shall not be held liable for any damage caused by such changes.
Only use the Sunny Central in accordance with the information provided in the enclosed documentation. Any other
application may cause personal injury or property damage.
The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for future
reference and observe all instructions contained therein.
8 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 2 Safety
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2.2 Safety Precautions
This section contains safety precautions that must be observed at all times when working on or with the product.
To prevent personal injury and property damage and to ensure long-term operation of the product, read this section
carefully and follow all safety precautions at all times.
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the Sunny Central. Touching live components results in death or
serious injury due to electric shock.
• When working in a high contact-risk environment, wear personal protective equipment.
• Do not touch any live components.
• Follow the instructions precisely.
• Observe all warning messages on the product and in the documentation.
• Observe all safety precautions of the module manufacturer.
• Provided live voltage is not absolutely necessary, always disconnect the following components from voltage
sources before performing any work on the inverter:
– Grid voltage for grid feed-in
– Internal power supply
– DC voltage from the PV array
– Additional external voltages, e.g. control signals from a control room
• Ensure that no disconnected components can be reconnected.
• After disconnecting the Sunny Central from voltage sources, wait at least 15 minutes for the capacitors to
discharge completely before opening the Sunny Central.
• Before working on the Sunny Central, check that all devices are completely voltage-free.
• Ground and short-circuit.
• Cover or isolate any adjacent live components.
Danger to life from electric shock due to live DC cables
DC cables connected to PV modules that are exposed to sunlight carry live voltage. Touching live components results
in death or serious injury.
• Wear suitable personal protective equipment for all work on the Sunny Central.
• Prior to connecting the DC cables, ensure that the DC cables are voltage-free.
Danger to life from electric shock due to ground fault
If a ground fault has occurred, parts of the PV system that are supposedly grounded may in fact be live.
Touching incorrectly grounded components results in death or serious injuries from electric shock.
• Ensure that no voltage is present before touching any components of the PV system.
• Wear suitable personal protective equipment for all work on the Sunny Central.
Installation Manual SCCP-JP-IA-A4-en-12 9
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Danger to life from electric shock if the Sunny Central is damaged
Operating a damaged Sunny Central can lead to hazardous situations that result in death or serious injuries due to
electric shock.
• Only use the Sunny Central when it is in a technically faultless condition and safe to operate.
• Regularly check the Sunny Central for visible damage.
• Make sure that all external safety equipment is freely accessible at all times.
• Make sure that all safety equipment is in good working order.
• Wear suitable personal protective equipment for all work on the Sunny Central.
Danger to life from electric shock when entering the PV field
The insu lation monitoring wi th GFDI, Remote GFDI or soft grounding does not provide protection from injury when GFDI
is activated. PV modules which are grounded with GFDI discharge voltage to ground. Entering the PV field can result
in lethal electric shocks.
• The inverter must be installed in a closed operating area.
• Before entering the PV field, switch the PV array to insulated operation.
• Ensure that the insulation resistance of the PV field is greater than 1 k Ω .
Danger to life from electric shock if the Sunny Central is not locked
If the Sunny Central is not locked, unauthorized persons have access to live components carrying lethal voltages.
Touching live components can result in death or serious injury due to electric shock.
• Always close and lock the Sunny Central.
• Remove the key from the door locks and from the key switch.
• Store the key in a safe place.
• Ensure that unauthorized persons do not have access to the PV system.
Danger to life due to blocked escape routes
In hazardous situations, blocked escape routes can lead to death or serious injury. Opening the doors of two
Sunny Central inverters located opposite each other blocks the escape route. It is imperative that the escape route is
freely accessible at all times.
• An escape route of at least 500 mm width must be available at all times. Make sure the minimum passage width
of the escape route meets local standards.
• Do not place any objects in the escape route area.
• Remove all tripping hazards from escape routes.
• If two Sunny Central inverters have been installed facing each other, never open the doors of both inverters
simultaneously.
Risk of fire due to failure to observe torque specifications on live bolted connections
Failure to follow the specified torques reduces the ampacity of live bolted connections so that the contact resistances
increase. This can cause components to overheat and catch fire.
• Ensure that live bolted connections are always tightened with the exact torque specified in this document.
• When working on the device, use suitable tools only.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high torques.
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Risk of burns due to hot components
Some components of the Sunny Central can get very hot during operation. Touching these components can cause
burns.
• Observe the warning messages on the devices.
• During operation, do not touch any components marked with such warnings.
• After disconnecting the PV system from voltage sources, wait until any hot components have cooled down
sufficiently.
• Wear suitable personal protective equipment for all work on the Sunny Central.
Damage to the devices due to dust or moisture penetration
Dust or moisture penetration can damage the Sunny Central or impair its functionality.
• Do not open the Sunny Central during rainfall or humidity of more than 95%.
• Only service the Sunny Central when the environment is dry and free of dust.
• Do not operate the Sunny Central with the door open.
• Do not connect the external supply voltage before the Sunny Central has been mounted and installed.
• Switch on the circuit breaker for external supply voltage. This will activate the heating element and internal fans so
that they can switch on automatically.
• If the installation or commissioning process is interrupted, mount all the panels of the Sunny Central.
• Close and lock the Sunny Central.
Damage to electronic components due to electrostatic discharge
Electrostatic discharge can damage or destroy electronic components.
• Observe the ESD safety regulations when working on the device.
• Wear suitable personal protective equipment for all work on the device.
• Discharge electrostatic charge by touching uncoated, grounded enclosure parts (e.g. at the grounding connection
on the doors). Only then is it safe to touch electronic components.
2.3 Skills of Qualified Persons
The tasks described in this manual must be performed by qualified persons only. Qualified persons must have the
following skills:
• Knowledge of how a Sunny Central works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical devices and systems
• Training in the installation and commissioning of electrical devices and systems
• Knowledge of all applicable standards and directives
• Knowledge of and adherence to this manual and all safety precautions
Installation Manual SCCP-JP-IA-A4-en-12 11
2 Safety SMA Solar Technology AG
2.4 Personal Protective Equipment
Always wear suitable protective equipment
When working on the Sunny Central, always wear the appropriate personal protective equipment for the specific
job.
The following personal protective equipment is regarded by SMA Solar Technology AG to be the minimum requirement:
☐ In a dry environment, safety shoes of category S3 with perforation-proof soles and steel toe caps
☐ During precipitation or on moist ground, safety boots of category S5 with perforation-proof soles and steel toe caps
☐ Tight-fitting work clothes made of 100% cotton
☐ Suitable work pants
☐ Individually fitted hearing protection
☐Safety gloves
Any other prescribed protective equipment must also be used.
12 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 3 Product Description
3 Product Description
3.1 PV System Overview
The Sunny Central is a PV inverter which converts the direct current generated in the PV modules into grid-compliant
alternating current. An external MV transformer fitted downstream feeds the generated alternating current into the utility
grid.
Figure1: Principle of a grid-tie PV system with one inverter
Position Designation
A PV array
B DC sub-distribution (e.g. Sunny String-Monitor)
C Sunny Central
D External MV transformer, e.g. Transformer Compact Station with MV transformer
E Utility grid
3.2 Sunny Central
3.2.1 Design and Function of the Sunny Central
Figure2: Sunny Central (example)
Position Designation
A Inverter cabinet
B Interface cabinet
CTouch display
DService interface
EKey switch
Installation Manual SCCP-JP-IA-A4-en-12 13
3 Product Description SMA Solar Technology AG
The Sunny Central is controlled via the Sunny Central Communication Controller (SC-COM). The grid management
service specifications from the grid operator can be implemented via a Power Reducer Box or the Power Plant Controller.
3.2.2 Type Label
The type label clearly identifies the product. There is one type label present in the Sunny Central. The type label is located
in the right-hand top corner inside the interface cabinet.
You will require the information on the type label to use the product safely and when seeking customer support from the
SMA Service Line. The type labels must be permanently attached to the product.
Reading off the serial number
You can identify the serial number without opening the Sunny Central. The serial number is located on the top left
corner of the Sunny Central roof. You can also read off the serial number from the touch display.
Reading off the firmware version
You can read off the version number of the Sunny Central and touch display firmware via the user interface.
You can also read off the version number of the touch display firmware on the touch display.
3.2.3 Symbols on the Product
All symbols on the Sunny Central and the type label are explained below.
Symbol Designation Explanation
CE marking The product complies with the requirements of the
applicable EU directives.
Protection class I All electrical equipment is connected to the grounding
conductor system of the product.
Degree of protection IP54 The product is protected against interior dust deposits
and splashing water from all angles.
Beware of a danger zone This warning symbol highlights a danger zone. Be
particularly vigilant and cautious when working on the
product.
Beware of dangerous voltage The product operates at high voltages. All work on the
product must be carried out by qualified persons only.
Beware of hot surface The product can get hot during operation. Avoid contact
during operation. Allow the product to cool down
sufficiently before carrying out any work. Wear personal
protective equipment such as safety gloves.
Use hearing protection. The product generates loud noises. When working on
the product, wear hearing protection.
Observe the documentation. Observe all documentation supplied with the product.
14 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 3 Product Description
3.2.4 Touch Display
Different kinds of Sunny Central data can be viewed on the touch display. On the touch display, you cannot set any
Sunny Central parameters, but only configure display settings such as language, time and brightness. The touch display
is fitted with a cover to protect it from weather influences. This cover can be pushed up to read the display.
The display screen is activated by touching the touch display. Tapping the symbols on the touch display activates the
corresponding functions. If the touch display has not been touched for five minutes, it will switch off.
3.2.5 Key Switch
The key switch is used to switch the Sunny Central on and off.
Switch Position "Start"
If the key switch is turned to Start, a motor drive automatically switches the DC main switch on and the Sunny Central
switches from the operating state "Stop" to the operating state "Grid monitoring". If there is sufficient irradiation and a
valid utility grid connection, the Sunny Central switches to feed-in operation. If the irradiation level, and therefore the input
voltage, is too low, the Sunny Central remains in the operating state "Grid monitoring".
Switch Position "Stop"
If the key switch is turned to Stop while the Sunny Central is in the operating state "Grid monitoring", a motor drive
automatically switches the DC main switch off. The Sunny Central switches to the operating state "Stop".
If the key switch is turned to Stop while the Sunny Central is in the operating state "MPP load operation", the
Sunny Central switches to the operating state "Shutdown". Once shutdown is complete, the AC contactor and the DC
main switch are switched off automatically and the Sunny Central switches to the operating state "Stop".
3.3 Remote Shutdown
By means of remote shutdown, you can selectively shut down and switch off the Sunny Central within approximately
six seconds, for example, from a control room. The function of the remote shutdown is similar to the stop function of the
key switch.
If the remote shutdown function is activated from the control room while the Sunny Central is in the operating state
"Grid monitoring", a motor drive automatically shuts off the DC main switch and the Sunny Central switches to the
operating state "Stop".
If the remote shutdown function is activated from the control room while the Sunny Central is in the operating state
"MPP load operation", the Sunny Central switches to the operating state "Shutdown". Once shutdown is complete, the
AC contactor and the DC main switch are switched off automatically and the Sunny Central switches to the operating
state "Stop".
The remote shutdown is designed as an open-circuit fail-safe function and must be connected to a 24 V external supply
voltage. If 24 V is present in the remote shutdown, the Sunny Central continues to operate in the current operating state.
If the remote shutdown is tripped or if a wire break occurs, 0 V is present in the remote shutdown and the Sunny Central
switches from its current operating state to the operating state "Stop".
Use of the remote shutdown will only be possible if the parameter ExlStrStpEna is set to On.
Installation Manual SCCP-JP-IA-A4-en-12 15
3 Product Description SMA Solar Technology AG
3.4 External Fast Stop
The Sunny Central is equipped ex works with a fast stop input. An external switch that is switched via a 24 V signal can
be connected to this fast stop input.
The external fast stop disconnects the Sunny Central from the utility grid in less than 100 ms.
The Sunny Central is delivered ex works with open terminals. The following options are available for configuring the
external fast stop:
• The external fast stop is deactivated.
The terminals of the active fast stop are bridged. The fast stop function is thus deactivated. You will need to bridge
the terminals if required.
• The external fast stop is operated with internal 24 V supply.
An external latching switch (break contact) is connected to the Sunny Central terminals via the internal supply
voltage in the Sunny Central. When the switch is closed, the all-or-nothing relay is activated and the Sunny Central
feeds into the grid. If the fast stop is tripped, the switch opens and the relay is deactivated. The Sunny Central is
stopped and no longer feeds energy into the grid.
• The external fast stop is operated via an external 24 V supply.
An external latching switch (break contact) is connected to the Sunny Central terminals via an external 24 V voltage
supply. When the switch is closed, the all-or-nothing relay is activated and the Sunny Central feeds into the grid.
If the fast stop is tripped, the switch opens and the relay is deactivated. The Sunny Central is stopped and no longer
feeds energy into the grid.
Tripping of the fast stop function
The fast stop function should only be tripped in case of imminent danger. The tripping of the fast stop does not entail
rapid discharge of the capacitors. If you wish to use an external signal to switch the Sunny Central off in a controlled
manner, you should use the input of the remote shutdown function.
3.5 Grounding Concept
In accordance with the latest technology, the Sunny Central inverters are discharged to ground. As a result, leakage
currents to ground occur which must be taken into account when planning the PV system. The magnitude and distribution
of such leakage currents is influenced by the grounding concept of all the devices in the PV system. SMA Solar
Technology AG therefore recommends that when using e.g. cameras and monitoring technology, optical fiber technology
is used for the transmission of signals (see Section13.2.2 "Setting up a System Network with Optical Fibers", page67).
This will counteract possible interference sources.
The grounding of the Sunny Central and MV transformers in meshed design as recommended by SMA Solar Technology
AG reduces the level of leakage current.
3.6 Schematic Diagram
Schematic diagrams in PDF format contain jump marks. By double clicking a jump mark, the display will change to the
corresponding current path or the referenced place in the equipment list.
SMA Solar Technology AG recommends using schematic diagrams in PDF format during installation. The schematic
diagrams in PDF format are available on request. Contact the SMA Service Line.
16 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 4 Scope of Delivery
4 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your distributor if the scope of
delivery is incomplete or damaged.
Scope of Delivery of the Inverter
Figure3: Components included in the scope of delivery of the inverter
Position Quantity Designation
A 1 Sunny Central
B 1 Ventilation plate
C5Kick plate
D 1 LV/HRC fuse handle*
E 1 Non-woven abrasive
F 1 Desiccant bag
G68Screw
H 68 Nut
I 136 Fender washer
K 136 Spring washer
L 80 Cable tie
M 1 Cable support sleeve 15 mm to 16 mm
N 1 Cable support sleeve 17 mm
O 5 Cable support sleeves 9.5 mm to 13 mm
P 1 Touch-up stick RAL 7004
Q 1 Touch-up stick RAL 9016
R 1 Installation manual, operating manual, circuit diagram, maintenance report
*For DC fuse option
Position of the LV/HRC fuse handle
With the DC fuse option, the LV/HRC fuse handle is located on the inside of the right door of the interface cabinet.
Installation Manual SCCP-JP-IA-A4-en-12 17
4 Scope of Delivery SMA Solar Technology AG
Scope of Delivery of the Order Option "Noise reduction"
Figure4: Components of the order option "Noise reduction"
Position Quantity Designation
A 1 Silencing baffle rear panel including ventilation plate
B 1 Silencing baffle lid
C1Rain protection
D 1 Touch-up stick RAL 7035
E1OKS
®
250 allround paste
F 15 Pan head flange screw
G 9 Cylinder head screw
H7Contact washer
I14Washer
K10Hexagon nut
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5 Storage
If the Sunny Central is to be stored prior to installation, note the following:
Penetrating moisture can damage the Sunny Central
If the Sunny Central is not stored properly, moisture can penetrate the enclosure and cause damage to electronic
components.
• Store the Sunny Central in a closed state.
• Store the Sunny Central in a dry and covered location.
• The temperature at the storage location must be between -25°C and +70°C.
An uneven foundation can damage the frame construction of the Sunny Central
Storing the inverter on an unsuitable foundation could damage the frame construction. Dust and moisture can penetrate
the inverter and damage electronic components.
• The foundation must be suitable for the weight of the Sunny Central (1,800 kg).
• The unevenness of the foundation must be less than 0.25%.
Storage in high humidity
If the Sunny Central is connected to the external supply voltage and the circuit breaker of the supply voltage is
switched on during storage, the heating system will activate automatically when humidity is high (see Section12.3.6
"Connecting the External Supply Voltage", page64).
Desiccant bag in the inverter cabinet
The desiccant bag in the inverter cabinet protects the electronic components from moisture. The desiccant bag must
be replaced by a new desiccant bag one day before commissioning.
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6 Preparation for Installation SMA Solar Technology AG
6 Preparation for Installation
6.1 Selecting a Mounting Location
6.1.1 Requirements for the Mounting Location
Orientation of the inverter for protection against noise
The front side of the inverter with the supply air opening is louder during operation than the rear side. Especially in
residential areas, the inverter should be oriented with the rear side facing the residential area.
Requirements:
☐ If the Sunny Central is to be installed in an electrical equipment room, an adequate supply of fresh air must be
ensured. If this is not the case, an additional ventilation system must be installed, e.g an external fan.
☐ The mounting location must be freely accessible at all times.
☐ The mounting location must be below the maximum installation altitude (see Section17 "Technical Data", page80).
☐ The ambient temperature must be within the operating temperature range (see Section17 "Technical Data",
page80).
☐ The mounting location must meet the requirements on ambient conditions (see the Technical Information "Installation
Requirements - Important Information on Transportation and Installation for Sunny Central 500CP-JP/630CP-JP/
800CP-JP").
6.1.2 Dimensions of a Sunny Central
Dimensions of a Sunny Central for Outdoor Installation
Figure5: Dimensions with roof
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SMA Solar Technology AG 6 Preparation for Installation
Dimensions of an optionally available silencing baffle
Figure6: Dimensions of the silencing baffle
Dimensions of the Sunny Central for Indoor Installation
Figure7: Dimensions without roof
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6.1.3 Minimum Clearances for Outdoor Installation
Risk of fire due to overheating of cables
Differing cable lengths lead to overheating of the cables. Excessive heat can result in cable fires. Death or serious injury
due to fire can result.
• All line conductors from the Sunny Central to the MV transformer must be of the same length.
• The cable length between the connection points must not exceed 15 m.
Damage to the Sunny Central and the MV transformer due to intake of exhaust air
• Install the PV system in such a way that the Sunny Central cannot draw in any exhaust air. The exhaust air vent is
located at the rear of the Sunny Central.
• Install the PV system so that the exhaust air from the Sunny Central does not enter the air intake of other devices
(e.g. MV transformer).
Observe the following requirements for optimum operation of the Sunny Central:
☐ The exhaust air vents must not be obstructed or closed.
☐ The electrical equipment room must be equipped with suitable exhaust air vents.
☐ The exhaust air vents must be accessible for cleaning at all times.
Minimum Clearances for One Sunny Central
Figure8: Minimum clearances for one inverter with optionally available silencing baffle
22 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 6 Preparation for Installation
Minimum Clearances for Two Sunny Central Inverters with MV Transformer to be Installed
Outdoors
Option 1
Figure9: Option 1: Minimum clearances for two inverters with the optionally available silencing baffle and MV transformer
Position Designation
A Sunny Central 1
B Sunny Central 2
C MV transformer and medium-voltage switchgear
D Cable route between Sunny Central and MV transformer
Installation Manual SCCP-JP-IA-A4-en-12 23
6 Preparation for Installation SMA Solar Technology AG
Option 2
Figure10: Option 2: Minimum clearances for two inverters with the optionally available silencing baffle and MV transformer
Position Designation
A Sunny Central 1
B Sunny Central 2
C MV transformer and medium-voltage switchgear
D Cable route between Sunny Central and MV transformer
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6.1.4 Minimum Clearances for Installation in Electrical Equipment Rooms
Damage to the Sunny Central and the MV transformer due to intake of exhaust air
• Install the PV system in such a way that the Sunny Central cannot draw in any exhaust air. The exhaust air vent is
located at the rear of the Sunny Central.
Minimum Clearances for One Sunny Central Installed in Electrical Equipment Rooms
The minimum passage width between the open door of the Sunny Central and the next fixed obstacle must be maintained.
The minimum passage width must comply with national standards. In Germany, the minimum passage width is 500 mm.
Figure11: Minimum clearances for one Sunny Central in an electrical equipment room
Position Designation
A Minimum passage width
B Sunny Central
Installation Manual SCCP-JP-IA-A4-en-12 25
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Minimum Clearances for Two Sunny Central Inverters Installed in Electrical Equipment Rooms
Danger due to blocked escape route
Opening the doors of two Sunny Central inverters located opposite each other blocks the escape route. It is imperative
that the escape route is freely accessible at all times. Make sure the minimum passage width of the route meets local
standards. In Germany, the minimum passage width is 500 mm.
• Only open the door of one Sunny Central at a time.
• Comply with local requirements concerning minimum passage widths.
Figure12: Minimum clearances for two Sunny Central inverters in an electrical equipment room
Position Designation
A Minimum passage width
B Sunny Central
6.1.5 Requirements for Foundation and Cable Arrangement
Laying the cables
This manual does not specify at what stage the cables are to be laid in the foundation. The stage at which the cables
are laid must be determined individually for each PV system.
☐ Openings for the cables must be located in the foundation
underneath the interface cabinet.
☐ Empty conduits for the cables must be laid under the foundation.
☐ The data cables must be kept separate from the AC and DC
cables.
☐ There must be sufficient space available to lay the cables properly.
26 SCCP-JP-IA-A4-en-12 Installation Manual
SMA Solar Technology AG 6 Preparation for Installation
:$5 1,1*
6.1.6 Requirements for Cable Routing between MV Transformer and
Sunny
Risk of fire due to overheating of cables
Differing cable lengths cause overheating.
• All line conductors from the Sunny Central to the MV transformer must be of the same length.
• The cable length between the connection points must not exceed 15 m.
☐ The line conductors must be bundled in the three-phase system.
☐ Between the MV transformer and the Sunny Central there must be three separate cable routes for the AC cables,
e.g. cable channels.
☐ A line conductor L1, L2 and L3 must be laid in each cable channel. Ensure that the distance between the cable
bundles is at least double that of the diameter of a cable. This will prevent current imbalances. Furthermore, it is
recommended to execute cabling between inverter and transformer directly on a grounding strap. This measure
further reduces electromagnetic influences.*
Central
Figure13: Arrangement of AC cables with three cables per line conductor (example)
Position Designation
L1 Line conductor L1
L2 Line conductor L2
L3 Line conductor L3
A Grounding strap
Installation Manual SCCP-JP-IA-A4-en-12 27
* For further information, see the Technical Information "Cable Set ‒ Requirements for and Laying of Cables between Sunny Central CP and
Transformer Compact Station" at www.SMA-Solar.com.
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