Growatt WIT 50-100K-AU User manual

1.The content of this document is continually reviewed and amended, where necessary. Growatt reserves the right to make changes to the
material at any time and without notice. Unless otherwise agreed, this document is for quick installation guidance only. All information and
suggestions in this document do not constitute a warranty of any kind, express or implied. Growatt reserves all rights for final explanation.
2.This document is for quick installation guidance only. For details, please refer to the User Manual.
3.Machine damage caused by failure to follow the instructions is not covered under any warranty.
1.When determining the installation position of the inverter, please consider the position of the batteries and the distribution panel.
2.For export limitation, you are advised to connect an energy meter and current transformers to the inverter.
When drilling holes, avoid the
water pipes and power cables
buried under the ground.
Please prepare the cables listed below before electrical connections.
123
4
1.Make sure all switches are
OFF before connecting the
cables. For personal safety, do
not operate when power-on.
2.If the diameter of the cable
does not match the terminal, or
the cable is aluminum wire,
please contact our after-sales
personnel.
Battery BOX
Quick Installation Manual WIT 50-100K-AU Quick Guide
≥1000mm
≥1000mm ≥1000mm
≥1
0
0mm
0
399.5mm
574.5mm When drilling holes, avoid the
water pipes and power cables
buried under the ground.
1
1
After cables are connected,
apply fireproof mud to the
waterproof silicone mat
inside the AC junction box.
Lock the cover of the AC
junction box after the
fireproof mud is applied.
5
1.
Overview
(12)BMS power supply port (13)GRID terminal
(14)LOAD terminal (15)Base
(1)Front panel (2)OLED display screen (3)Battery status indicator (4)Push button
(9)USB port
(5)System indicator
(6)BMS communication port (7)Parallel communication port (8)Monitor communication port
(10)Network communication port (11)Battery terminal
Notes:
2.
Installation
System overview 2.1 Installation requirements
2.2 Floor-mounted installation
2
3.
Connecting cables
3.1 Grounding 3.2 AC GRID and UPS output connection
Notes:
Notes:
No.
Cable
Type
Recommend
specifications
1
Grounding cable
A multiple-core copper cable (yellow and
green)
2
50mm
2
GRID cable
A multi-core copper cable
2 2
120mm -300mm
3
LOAD cable
Photovoltaic cable
2 2
70mm -150mm
4
Battery power cable
A single-core copper cable (red and black)
2
50mm
5
BMS power supply cable
A multi-core copper cable
2 2
0.5mm -2.5mm
6
Other communication cable
RS485
/
Notes:
3
Notes:
Notes:
Φ12mm
(0.47'')
70mm(2.76'')
0.1m
0.1m
678 9 10 11 12 13 14 15
Primary Load
Secondary Load
Bypass
Breaker
T
Grid
Breaker
Grid
Load
Breaker
Meter
Phone
BAT
PCS
3.3.2 Connecting the BMS power supply cable
3.3 Connection on the battery side
18-20 mm
1
3.3.1 Connecting the battery power cable
Notes:
1. Before installing the battery terminals, please
ensure that the battery input voltage and current are
within the acceptable range.
2. When installing battery terminals, identify the
positive and negative terminals and connect them to
the inverter according to the color convention.
3. When connecting the terminals, ensure that you hear
a "click" sound. Please gently pull back the battery
cables to ensure a secure connection.
BMS power supply port description
Label
Definition
L
L1
N
L2
PE
PE
2 3
4
234
5
100.0K W
Output Power

Number
Checking item
Number
Checking item
1
The hybrid inverter is installed correctly and reliably.
2
Ground cables are connected securely.
3
All switches are in the OFF position.
4
All cables are connected correctly and securely.
5
The cover of the AC junction box is secured.
6
All the unused connectors are sealed.
7
The right panel is closed and secured.
8
Put away the unused accessories.
9
The installation position is clean and tidy.
Before power-on, please make sure all components remain within their permitted operating ranges. Otherwise it will cause damage to the
hybrid inverter.
Perform the following steps to power on the system:
1.Ensure that there is no voltage on the PV side, then turn on the DC switches.
2.Turn on the breaker between the grid and the inverter.
3.Turn on the breaker between the battery and the inverter, then turn on the switch on the battery.
4.The system will be powered on automatically when all the requirements are met.
To shut down the system, you need to send a shutdown command on the APP or website. Wait until the system is completely powered off,
then turn off the switches in reverse order.
GR-UM-327-A-00
Download
Manual
Growatt New Energy
Shenzhen Growatt New Energy Co., Ltd
4-13/F, Building A, Sino-German (Europe) Industrial Park,
Hangcheng Ave, Bao'an District, Shenzhen, China
2
The Inverter side
Parallel communication port
3.5.6 Communication module installation
A
B
C
D
E
F
G
H
I
USB
The Inverter side
USB
Monitor communication port
3.4 Installing the communication cable
BMS communication port
4.
Post-installation check
3.5.6 Communication module installation
5.
Powering on/off the inverter
Note:
3.5.6 Communication module installation
6.
Description of the display panel
Indicator
Function
Indicator
Function
A
OLED display screen
F
Battery connection indicator
B
System indicator
G
Communication indicator
C
PV indicator
H
Battery status indicator
D
On-grid indicator
I
Push button
E
Off-grid indicator
31
BMS Communication port
description(BMS-COM)
No.
Description
No.
Description
1
Wakeup+
6
CANL
2
Wakeup-
7
CAN.GND
3
RS485A3
8
Di1
4
RS485B3
9
Di2
5
CANH
16
PE
Parallel communication port
description(COM2)
No.
Description
No.
Description
1
24V.S
16
CAN2_H
2
GND.S
17
CAN2_L
3
CAN1_H
18
RS485_1A
4
CAN1_L
19
RS485_1A
5
GND.S
20
PE
6
CAN2_H
21
RS485_5A
7
CAN2_L
22
RS485_5B
8
RS485_1A
23
RS485_5A
9
RS485_1B
24
RS485_5B
10
PE
25
RS485_4A
11
24V.S
26
RS485_4B
12
GND.S
27
RS485_4A
13
CAN1_H
28
RS485_4B
14
CAN1_L
29
ATS_CAN205_H
15
GND.S
30
ATS_CAN205_L
Follow the installation steps:
1. Remove the waterproof cover from
the network communication port.
2. Insert a network cable into the port
and tighten the protective cover.
Monitor communication port
description(COM1)
No.
Description
No.
Description
1
RS485A4
9
RS485B2
2
RS485B4
10
Res_RS4851B
3
RS485A1
11
PE
4
RS485B1
12
REPO1
5
Res_RS4851A
13
REPO2
6
RS485A2
14
DO1
7
RS485B2
15
DO2
8
RS485A2
16
PE
Network communication port
3.5.6 Communication module installation
7.
Service and contact
3.4.6 Installing the datalogger
[phone]
www.ginverter.com
T
E [e-mail]
W
Follow the installation steps:
1.Remove the waterproof
cover from the USB port.
2.Plug in the datalogger.
3.Secure the datalogger.