Table of contents
SMA Solar Technology AG
Operating manual EVC22-3AC-20-BE-en-10 3
Table of contents
1 Information on this Document................................................. 8
1.1 Validity ........................................................................................................................ 8
1.2 Target Group.............................................................................................................. 8
1.3 Contents and structure ............................................................................................... 8
1.4 Levels of Warning Messages .................................................................................... 8
1.5 Symbols in the Document .......................................................................................... 9
1.6 Typographies in the document.................................................................................. 9
1.7 Designations in the Document................................................................................... 9
1.8 Additional Information ............................................................................................... 9
2 Safety ........................................................................................ 11
2.1 Intended Use .............................................................................................................. 11
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 12
3 Scope of Delivery..................................................................... 16
4 Product overview..................................................................... 18
4.1 Device function........................................................................................................... 18
4.2 System Overview ....................................................................................................... 18
4.2.1 SMA eCharger in secure power supply operation .............................. 18
4.2.2 SMA eCharger with Sunny Home Manager........................................ 19
4.2.3 Circuitry Overview.................................................................................. 20
4.2.4 Communication Overview...................................................................... 22
4.3 Product Description .................................................................................................... 23
4.4 Symbols on the Product ............................................................................................. 24
4.5 Interfaces and Functions ............................................................................................ 25
4.5.1 User Interface.......................................................................................... 25
4.5.2 Device Key (DEV KEY) ........................................................................... 25
4.5.3 Digital inputs ........................................................................................... 25
4.5.4 Modbus................................................................................................... 25
4.5.5 Grid Management Services................................................................... 26
4.5.6 SMA Smart Connected .......................................................................... 26
4.5.7 SMA Speedwire ..................................................................................... 26
4.5.8 Wi-Fi......................................................................................................... 26
4.5.9 Wi-Fi connection to SMA 360° app and SMA Energy app............... 26
4.5.10 RS485 interface...................................................................................... 27
4.5.11 Multifunction relay (MFR)....................................................................... 27
4.5.12 Charging release .................................................................................... 27
4.5.13 Knock sensor........................................................................................... 27
4.6 LED Signals................................................................................................................. 27