Afore BNT050KTL User manual

Installation and Operation Manual
On-Grid PV Inverter

1.About This Manual . . . . . . . . . . . . . . . . . . . . .
1.1 Scope of Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.Safety & Symbols . . . . . . . . . . . . . . . . . . . . .
2.1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Explanations of Symbols . . . . . . . . . . . . . . . . . . . . . . . .
3.Installation . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Installation On-grid PV Inverter . . . . . . . . . . . . . . . . . . . . .
3.5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.1 PV Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2 Grid Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.3 Earth Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.4 Communication Connection (WIFI / Ethernet / GPRS / RS485) . . . . .
4.Operation . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Startup Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.Commissioning . . . . . . . . . . . . . . . . . . . . . . .
6.Shut Down & Restart the Inverter . . . . . . . . . . . . .
6.1 Shut Down Procedures . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Restart the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.Maintenance&Trouble Shooting . . . . . . . . . . . . . .
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Fault Code and Trouble Shooting . . . . . . . . . . . . . . . . . . .
8.Specifications . . . . . . . . . . . . . . . . . . . . . . . .
Contents
Contents
21
21
21
21
20
21
21
19
14
9
11
6
8
13

1.About This Manual
1.1 Scope of Validity
1.2 Target Group
1.3 System Diagram
This manual describes the installation, commissioning, operation and
maintenance of the following on-grid PV inverters produced by Afore New
Energy:
This manual is for qualified personnel. The tasks described in this manual must
only be performed by qualified personnel.
Three-Phase
BNT050KTL BNT060KTL
Please keep this manual all the time available in case of emergency.
About This Manual
01
The typical connection diagram for the entire PV system is on-grid.
Circuit Breaker
Circuit Breaker
1Surge Protective
Device
DCA1+
DCA1-
PE
N
L
3
PV Inverter
PVA1
AC Grid
Circuit Breaker 2Surge Protective
Device
Surge Protective
Device
DCA2+
DCA2-
PVA2
Circuit Breaker 3Surge Protective
Device
DCA3+
DCA3-
PVA3
PV Array
PV Array
PV Array
WIFI / RS485
Cloud server
Portal web Porta Smart-phone

2.Safety & Symbols
2.1 Safety Precautions
1. All work on the inverter must be carried out by qualified electricians.
2. The device may only be operated with PV panels.
3. The PV panels and inverter must be connected to the ground.
4. Do not touch the inverter cover until 5 minutes after disconnecting both DC
and AC power supply.
5. Do not touch the inverter enclosure when operating, keep away from materials
that may be affected by high temperatures.
6. Please ensure that the used device and any relevant accessories are disposed
of in accordance with applicable regulations.
7. Afore inverter should be placed upwards and handled with care in delivery. Pay
attention to waterproof. Do not expose the inverter to water, rain, snow or spray.
8. Alternative uses, modifications to the inverter not recommended. The warranty
can become void if the inverter was tampered with or if the installation is not in
accordance with the relevant installation instructions.
Safety & Symbols 02
BNT050KTL
BNT060KTL
75
90
100
125
Type Max AC Current [A] Rate current of AC breaker[A]
Circuit Breaker and Surge Protector Recommendation:
SPD: Lightning protection system, refer to the following options:
AC side, nominal discharge current 20KA, second grade lightning protection,
protection voltage 2.5KV
DC side, nominal discharge current 20KA, second grade lightning protection,
protection voltage 2.5KV
The wiring distance between the inverter and the distribution box should be at
least 5 meters.
Note:
The Inverter can be only connected to low-voltage grid.
(380/400/415Vac, 50/60Hz).

Afore inverter strictly comply with relevant safety standards. Please read and
follow all the instructions and cautions during installation, operation and
maintenance.
Safety & Symbols
03
2.2 Explanations of Symbols
Danger of Electric Shock.
The inverter contains fatal DC and AC power. All work on the
inverter must be carried out by qualified personnel only.
Beware of hot surface.
The inverter’s housing may reach uncomfortably hot 60°C (140°F)under
high power operation.Do not touch the inverter enclosure when operation.
Residual power discharge
Do not open the inverter cover until 5 minutes after disconnection both
DC and AC power supply
Do not dispose of this device with the normal domestic waste.
Important notes
Read all instructions carefully. Failure to follow these instructions,
warnings and precautions may lead to device malfunction or damage.
Without Transformer.
This inverter does not use transformer for the isolation function.
CE mark.
The inverter complies with the requirements of the applicable
CE guidelines.
Refer to manual before service.
User
Manual

3.Installation
3.1 Package
Unpacking
On receiving the inverter, please check to make sure the packing and all of the
components are not missing or damaged. Please contact your dealer directly for
supports if there is any damage or missing components.
Package List
Open the package, please check the packing list shown as below.
Instruction 04
No.
1
2
3
4
5
6
7
1
1
1
1
1
1
5
Solar Inverter
Certificate Of Inspection
Quick Installation Instructions
Warranty Card
8
9
10
11
12
13
5
12
1
1
2
1
Mounting Bracket Screw
DC Connector sets
Monitor Module
Zero-Injection Connector(Optional）
Security Screw
Screwdriver For Security Screw
Wall Mounting Bracket
Grounding Terminal
Plastic Expansion Tube
Qty Items No. Qty Items
6
789
10
11
13
MC
STOP!
MC
1
2 3 4 5
Certificate
of
inspection
Quick
Installation
Instructions
Warranty
card
12

Overview of the Connection Area
The following figures show the assignment of the individual connection areas
on the bottom of the inverter.
Installation
05
3.2 Product Overview
No.
1
2
3
DC Switch
DC Connectors ( + ) For PV Strings
DC Connectors ( − ) For PV Strings
Items
306mm
850mm
630mm
37
124 5 6

The inverters are designed for indoor and outdoor installation (IP65), to increase
the safety, performance and lifespan of the inverter, please select
the mounting location carefully based on the following rules:
The inverter should be installed on a solid surface, far from flammable or
corrosion materials, where is suitable for inverter’s weight and dimensions.
The ambient temperature should be within -25℃~ 60℃(between -13 °F and
140°F).
The installation of inverter should be protected under shelter. Do not expose the
inverter to direct sunlight, water, rain, snow, spray lightning, etc
Installation 06
3.3 Mounting Location
No.
4
5
6
7
Zero-Injection Port (Optional)
Monitor Module Port
AC Connect
ModBus(Optional)
Items

Installation
07
The inverter should be installed vertically on the wall, or lean back on plane
with a limited tilted angle. Please refer to below picture.
Leave the enough space around inverter, easy for accessing to the inverter,
connection points and maintenance.
300mm 300mm
500mm
500mm
>0°
<30°
Max

Installation 08
3.4 Installation On-grid PV Inverter
Step 1
Step 2
Step 2
410mm
550mm
Check to ensure the inverter is correctly seated.
Security screw Security screw
Make sure to lock it with the security screws.

Installation
09
3.5 Electrical Connection
The inverter is equipped with 3 MPPT channels, and each channel contains 4
PV string inputs. For best results, make sure that each MPPT channel is
connected to a PV string separately. Otherwise, the inverter will automatically
activate voltage or current protection.
·The open-circuit voltage and short-circuit current of PV string must not exceed
inverter’s range
·The isolation resistance between PV string and ground must exceed 10 kΩ
·The polarity from PV strings are correct
·Use the DC plugs in the accessory
·The lightning protector should be equipped between PV strings and inverter
·Disconnect all of the PV (DC) switch during wiring
3.5.1 PV Connection
Warning:
The fatal high voltage may on the DC side, please comply with
electric safety when connecting.
Please make sure the correct polarity of the cable connected with
inverter, otherwise inverter could be damaged.
12-15 mm
12-15 mm
Step 1
Step 2
Negative Crimp Contact
Positive Crimp Contact
2
Cross-section
4 mm
Note: PV cable suggestion
Note: Please use PV connector crimper to pinch the point of the arrow

Instruction 10
MC
STOP !
MC
MC
STOP !
MC
Step 3
Note：
It is strongly recommended to connect by 12 strings of panels for models
of 12 sets of DC connectors.
Note:
You’ll hear click sound when the
connector assembly is correct

The three-phase on-grid PV inverters work with grid (380/400/415/440 Vac,
50/60 Hz).
The external AC switch should be installed between inverter and grid to isolate
from grid. Please make sure below requirements are followed before connecting
AC cable to the inverter.
·The AC (grid) voltage must not exceed inverter’s range
·The phase-line from AC distribution box are correctly connected
·Use the AC plugs in the accessory
·The surge protector should be equipped between grid and inverter
·Disconnect the AC (grid) switch during wiring
Installation
11
3.5.2 Grid Connection
Warning:
The fatal high voltage may on the AC side, please comply with
electric safety when connecting.
Please make sure the right line of AC grid connected with inverter,
otherwise inverter could be damaged.
Remove the waterproof cap at the AC wiring under the inverter, pass the cable
through the cap, and open the inverter cover.
Step 1
10±0.5mm
Sectional Area > 16mm²

Installation 12
Step 3
Unscrew the row of screws, insert the wire harness into the W, U, V, N caps one by one, and
tighten the screws
N=Neutral line
W, V, U=Live line
Step 2
W U V N
W U V N

W U V N
W U V N
The user must connect a protective earth (PE) terminal to
prevent electric shock. And make sure this PE terminal is
properly grounded.
Installation
13
3.5.3 Earth Connection
Step 1
Step 2
3~5 mm
Grounding terminal
Note: copper cable or aluminum cable more than 6mm²
Grounding terminal is connected to the inverter at left or right side

Installation 14
Step 2
3.5.4 Communication Connection
The monitoring module could transmit the data to the cloud server, and display
the data on the PC, tablet and smart-phone.
Wi-Fi / GPRS / RS485 communication is applicable to the inverter .Please refer
to "Communication Configuration Instruction" for detailed instruction.
Install the Wi-Fi / GPRS / RS485 Communication
Step 1
Fasten

Installation
15
Install the ZeroInjection Smart Meter(optional)
Step 1
The Smart Meter is used for monitoring the power consumption of home
electricity, the inverter will active export power limit function based on the
monitoring data. Please refer to "Zero injection Smart Meter Instruction" for
detailed instruction.
Step 2
13 14 16 17 19 21 24 25
1 4 7 10
13 14 16 17 19 21 24 25
1
2
3-8
PIN Assignment
RS485 A ( PIN 24 )
RS485B ( PIN 25 )
/
Zero-Injection Port pin assignment
12345678
RJ45 Plug

Operation 16
4.Operation
4.1 Control Panel
IItteemmssNNoo.. IItteemmssNN oo..
1
2
3
4
5
6
LCD Display
GRID LED Indicator
POWER LED Indicator
FAULT LED Indicator
DOWN Touch Button
ESC Touch Button
UP Touch Button
ENT Touch Button
RUN LED Indicator
1
3
5
2
4
6
UP DOWNESC ENT
RUN FAULTGRID POWER
Grid
Load
PV Inverter
Distribu�on Cabinet
L1
L1‘
L2’
L3’
L2
L3
PV Array
RS485 / WiFi / Ethernet / GPRS
Afore Smart Meter
PV Array
PV Array
Router
Cloud Server
Weather Sta�on
Energy Meter
PV Inverter
PV Inverter
Note:
The Inverter could be connected in parallel with Smart Meter,
make sure the total load power not exceed Smart Mater’s limitation.

Operation
17
4.2 Menu Structure
Second Level Menu
Second Level Menu
Three Level Menu
Three Level Menu
Fourth Level Menu
Fourth Level Menu
Fourth Level Menu
ISO Test
Run Info
Run
DC Input
PV1
U xx（V）
I xx（A）
P xx（W）
PV2
U xx（V）
I xx（A）
P xx（W）
Err Record Err Record
ON/OFF
Wifi Info
Version
SN:XXX
IP:XXX
Rated Power:Blad SPI
Safety:xxxx
Rared Voltage:480V
Rated Current:xxkw-3
System Info
DSP：XXX
HMI：XXX
SN:TXXXXXXXXX
Build:xx.x.xxx.xxx
StatrRun
ISOPGa xx
ISONGa xx
ISOPGb xx
ISONGb xx
Case_Temp xx°C
Info
Modletemp xx°C
ScreenTemp xx°C
Bus+ xxV
Bus- xxV
RunTime xxxHr
SumTime xxxHr
Ia xx
Ib xx
Ic xx
Fac(Hz)
Vac（V）
Ua xx
Ub xx
Uc xx
Iac（A）
ACOutput
System
Date&Time
Date:xx-xx-xxxx
Time:xx:xx:xx
English
Polish
中文
Language
Country
Energyk xxx.x%Energyk
Etotal:x.x kwhEtotal Reset
Clear ErrRecord
Clear RunRecord
Factory Reset
Enter User PassWord
Enter User PassWord
Enter User PassWord
Enter User PassWord
Enter User PassWordRunning
Enter User PassWordProtec�on
SET
Rs485 Address 01
Baud rate 9600
Communica�on
Para Adj
First Level Menu
Power
60.000KW
15.6 KWh
497000KWh
RUNNING
110
50
0
5 8
11 14 17 20 23
t
P(%)
11/11/2019 11:00
EDay
EAll
State

Operation
18
Explanation of LCD Display Content
Nouns Explanation
Run Info Check the grid connection status of the inverter
Check the error list of inverter including date and time
Set the protection parameter of inverter
Development function, unavailable
View WIFI SN and IP addressWIFI info
View the inverter information:Voltage,current,power and so no
Error Record
SET
ON/OFF
Check the software version of the control board and display boardVersion
System