Studer Innotec SA
next3
2 V 1.3 © Studer-Innotec SA next3 Tech manual
Contents
1 INTRODUCTION ...................................................................................................................................... 4
2 GLOSSARY .............................................................................................................................................. 5
2.1 Symbols and conventions ............................................................................................................. 5
3 GENERAL INFORMATION ....................................................................................................................... 6
3.1 About this user manual.................................................................................................................. 6
3.2 Important safety instructions ......................................................................................................... 7
3.3 Quality and warranty .................................................................................................................... 7
3.3.1 Exclusion of warranty ................................................................................................................. 7
3.3.2 Exclusion of liability .................................................................................................................... 8
4 HANDLING AND MOUNTING ................................................................................................................ 9
4.1 Handling and moving.................................................................................................................... 9
4.2 Storage ............................................................................................................................................ 9
4.3 Dimensions ...................................................................................................................................... 9
4.3.1 Dimensions of wall mounted next3 ......................................................................................... 9
4.3.2 Dimensions of the 19’’ rack next3 .......................................................................................... 10
4.3.3 Dimensions of the nx-interface .............................................................................................. 11
4.4 Unpacking and mounting ........................................................................................................... 12
4.4.1 Mounting place ....................................................................................................................... 12
4.4.2 Unpacking and mounting process ........................................................................................ 13
5 WIRING ................................................................................................................................................. 21
5.1 General overview ........................................................................................................................ 21
5.1.1 System block diagram ............................................................................................................ 21
5.1.2 General recommendations ................................................................................................... 22
5.1.3 Connections overview ............................................................................................................ 23
5.1.4 Tightening torques ................................................................................................................... 26
5.1.5 Max permissible cable cross-sections summary .................................................................. 26
5.2 Connecting the battery .............................................................................................................. 27
5.2.1 Dimensioning the battery ....................................................................................................... 28
5.2.2 Battery cable cross-section, DC protective and disconnection devices ........................ 29
5.2.3 Connecting the battery .......................................................................................................... 29
5.2.4 Earthing of battery ................................................................................................................... 31
5.2.5 Precautions when using batteries .......................................................................................... 31
5.2.6 Battery temperature sensor connection (nx-tempSensor) ................................................. 32
5.2.7 Battery with communicating BMS: CAN connection .......................................................... 33
5.3 Connecting the AC (Alternative Current) ................................................................................ 34
5.3.1 Sizing of AC protective devices ............................................................................................. 35
5.3.2 AC Neutral and Earthing system ............................................................................................ 37
5.4 Connecting the Photovoltaic generator .................................................................................. 40
5.4.1 PV string dimensioning ............................................................................................................ 40
5.4.2 Connection .............................................................................................................................. 42
5.4.3 Earthing of PV ........................................................................................................................... 43
5.4.4 Cables and cross-section ....................................................................................................... 44
5.4.5 Protection devices................................................................................................................... 45
5.5 Lightning protection .................................................................................................................... 45
5.6 Connecting the Studer communications cables .................................................................... 46
5.6.1 Connection of the nx-interface ............................................................................................. 47
5.6.2 Connection to Internet ........................................................................................................... 49
5.7 Wiring auxiliary I/O ....................................................................................................................... 50
5.7.1 Auxiliary contacts .................................................................................................................... 50
5.7.2 Command Inputs ..................................................................................................................... 51
5.7.3 RS485i......................................................................................................................................... 51
5.8 Multi-unit configurations .............................................................................................................. 52
5.8.1 Extension of an existing installation........................................................................................ 52
6 POWER-UP OF THE EQUIPMENT ........................................................................................................... 53
6.1 Initial configuration ...................................................................................................................... 53
6.2 Front panel Button ....................................................................................................................... 53
6.3 Front panel LED indicator ............................................................................................................ 54