Name: Studer NEXT3
Brand: Studer
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Studer Innotec SA

next3

122 V 1.3 © Studer-Innotec SA next3 Tech manual

This is related to the control of and set of relay providing redundancy between the grid and the

next3 as seen on the schematic below:

The implemented logic is:

Table of Contents2
Introduction4
Glossary5
Symbols and Conventions5
General Information6
About this User Manual6
Important Safety Instructions7
Quality and Warranty7
Exclusion of Warranty7
Exclusion of Liability8
Handling and Mounting9
Handling and Moving9
Storage9
Dimensions9
Dimensions of Wall Mounted Next39
Dimensions of the 19'' Rack Next310
Dimensions of the Nx-Interface11
Unpacking and Mounting12
Mounting Place12
Unpacking and Mounting Process13
Wiring21
General Overview21
System Block Diagram21
General Recommendations22
Connections Overview23
Tightening Torques26
Max Permissible Cable Cross-Sections Summary26
Connecting the Battery27
Dimensioning the Battery28
Battery Cable Cross-Section, DC Protective and Disconnection Devices29
Connecting the Battery29
Earthing of Battery31
Precautions When Using Batteries31
Battery Temperature Sensor Connection (Nx-Tempsensor)32
Battery with Communicating BMS: CAN Connection33
Connecting the AC (Alternative Current)34
Sizing of AC Protective Devices35
AC Neutral and Earthing System37
Connecting the Photovoltaic Generator40
PV String Dimensioning40
Connection42
Earthing of PV43
Cables and Cross-Section44
Protection Devices45
Lightning Protection45
Connecting the Studer Communications Cables46
Connection of the Nx-Interface47
Connection to Internet49
Wiring Auxiliary I/O50
Auxiliary Contacts50
Command Inputs51
Rs485I51
Multi-Unit Configurations52
Extension of an Existing Installation52
Power-Up of the Equipment53
Initial Configuration53
Front Panel Button53
Front Panel LED Indicator54
Beep Indicator (Buzzer)56
Hmi: Use of Nx-Interface57
General Navigation and Use58
Screens Map59
Embedded Documentation61
Accessibility62
Displaying the State of the Energy System on the NX-Interface64
Simple Dashboard64
Synoptic65
Simple Chart66
Messages66
The Nx-Interface Functionalities67
Remote Control67
Update69
Installation Configuration71
Monitoring & Dataloging73
Configuration and Operation of the Next3 Energy System77
Essentials to Know about a Next3 System77
Understand the General Energy Strategy78
Standard Use Cases81
Configuration83
Configuration Wizard83
AC-Source91
General Information91
AC-Source Information91
AC-Source Settings for Grid93
AC-Source Settings for Genset94
Solar PV96
General Information96
Solar Information96
Solar Settings98
Battery100
General Information100
Battery Information100
Battery Settings101
Battery: Additional Explanations103
AC-Loads107
General Information107
AC-Loads Information107
AC-Loads Settings108
AC-Flex111
General Information111
AC-Flex as Source; Information and Settings111
AC-Flex as Loads; Information111
AC-Flex as Load; Settings113
Device and I/O: Aux Contacts, Inputs and Communication120
General Points120
Device Information121
AUX-Contacts Settings121
IN-CMD Settings123
Rs485I Settings123
System Settings124
Earthing Relay124
Source Priority125
Maintenance of the Installation127
Technical Data128
Product Recycling131
Conformity131

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Studer NEXT3 Specifications

General

Brand	Studer
Model	NEXT3
Category	Industrial Equipment
Language	English

Studer NEXT3 User Manual

Table of Contents

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Studer NEXT3 Specifications