Growatt WIT 50-100K-US - Table of Contents

2
Contents
1. Notes on this manual
...................................................................................................................... 4
1.1 Introduction
...........................................................................................................................4
1.2 Target Group
.........................................................................................................................4
1.3 Product Range
.......................................................................................................................4
2. Safety Precautions
.......................................................................................................................... 4
2.1 Safety Instructions
................................................................................................................ 5
2.2 Symbol Conventions
.............................................................................................................6
2.3 Label Description
..................................................................................................................7
3. Product Description
........................................................................................................................ 8
3.1 Overview
...............................................................................................................................8
3.2 Basic Data
........................................................................................................................... 11
3.3 Nameplate
........................................................................................................................... 12
3.4 Operating Principle
.............................................................................................................13
3.4.1 Operating Principle of WIT 50-100K-A-US
...........................................................13
3.4.2 Operating Principle of WIT 50-100K-H-US
...........................................................13
3.4.3 Operating Principle of WIT 50-100K-AE-US and WIT 50-100K-AU-US
............13
3.4.4 Operating Principle of WIT 50-100K-HE-US and WIT 50-100K-HU-US
............14
3.5 Storing the WIT Inverter
.................................................................................................... 14
3.6 Supported Grid Types
.........................................................................................................15
3.7 AFCI Function
.................................................................................................................... 15
3.7.1 AFIC Function Description
..................................................................................... 15
3.7.2 Clearing the alarm
................................................................................................... 15
3.8 Anti-PID Function
.............................................................................................................. 16
4. Inspection upon delivery
.............................................................................................................. 17
5.
Installation .................................................................................................................................... 19
5.1 Basic Installation Requirements
......................................................................................... 19
5.2 Installation Environment Requirements
.............................................................................20
5.3 Moving the WIT Inverter
................................................................................................... 21
5.4 Mounting the WIT Inverter
................................................................................................ 22
5.4.1 Ground-mounted Installation
.................................................................................. 22
5.4.2 Wall-mounted Installation
.......................................................................................23
6. Electrical Connections
.......................................................................................................... 25
6.1 Connecting the Ground Cables
...........................................................................................29
6.2 Connection on the AC Side
................................................................................................ 29
6.3 Connection on the PV Side
.................................................................................................32
6.4 Connection on the Battery Side
..........................................................................................34
6.4.1 Connecting the Main Power Cable of the Battery
.................................................. 34
6.4.2 Connecting the Battery BMS-AC Terminal
............................................................35
6.5 Connecting Communication Cables
...................................................................................36
6.5.1 Battery Communication Connection
.......................................................................36
6.5.2 External Communication Connection
..................................................................... 38
6.5.3 Parallel Communication Connection
...................................................................... 39