Afore BNT003KTL 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 Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1 Startup Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.3 Query Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
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
BNT003KTL BNT004KTL BNT005KTL BNT006KTL BNT008KTL
BNT010KTL BNT012KTL BNT013KTL BNT015KTL BNT017KTL
BNT020KTL
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
DCB1+
DCB1-
PVB1
Circuit Breaker 4Surge Protective
Device
DCB2+
DCB2-
PVB2
PV Array
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
Safety & Symbols 02
BNT003KTL
BNT004KTL
BNT005KTL
BNT006KTL
BNT008KTL
5.3
7
8.5
10.5
13.5
16
16
16
16
25
Type Max AC Current [A] Rate current of AC breaker[A]
BNT010KTL
BNT012KTL
BNT013KTL
BNT015KTL
BNT017KTL
BNT020KTL
17
21.5
22
27
30
32
25
32
32
32
40
40
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 3.2KV
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.
(380/400V/415Vac, 50/60Hz).

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.
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.
Note: 3-10kW is 2 pairs of DC plug connector, 12-15kW is 3 pairs, 17-20kW is 4 pairs
Instruction 04
No.
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
3
Solar Inverter
Certificate Of Inspection
Quick Installation Instructions
Warranty Card
Wall Mounting Bracket
Grounding Terminal
Zero-Injection Connector(Optional）
Plastic Expansion Tube
9
10
11
12
13
14
15
16
3
1
1
2/3/4
4
1
1
4
Mounting Bracket Screw
Security Screw
Screwdriver For Security Screw
DC Connector sets
AC Wiring Cover Screw
AC Waterproof Cover
Monitor Module
AC Wearing Terminal
Qty Items No. Qty Items
67
89
10 11
12
13
MC
STOP!
MC
14 15 16
1
234
5
Certificate
Of
Inspection
Quick
Installation
Instructions
Warranty
Card

Installation
05
3.2 Product Overview
BNT012-015KTL
345mm
680mm
170mm
170mm
BNT003-006KTL
345mm
400mm
BNT008-010KTL
345mm
460mm
BNT017-020KTL
345mm
680mm

Overview of the Connection Area
The following figures show the assignment of the individual connection areas
on the bottom of the inverter.
Installation 06
BNT003-010KTL
4
12
3
6
BNT012-015KTL
4
125
3
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
07
3.3 Mounting Location
No.
1
2
3
4
5
6
DC Switch
DC Connectors ( + ) For PV Strings
DC Connectors ( − ) For PV Strings
AC Connector
Monitor Module Port
Zero-Injection Port (Optional)
Items
BNT017-020KTL
4
125
3
6

Installation 08
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.
<30°
>0°
300mm
100mm 100mm
500mm
Max

Installation
09
3.4 Installation On-grid PV Inverter
328.5mm
26mm 26mm35mm
Step 1
Step 2
Step 3
Security screw

Instruction 10
3.5 Electrical Connection
The inverter have 2-4 channels, can be connected with 2-4 strings of PV panels.
Please make sure below requirements are followed before connecting PV
panels / strings to the inverter.
·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
Note: PV cable suggestion
Note:
Please use PV connector crimper
to pinch the point of the arrow
Step 2
Negative Crimp Contact
Positive Crimp Contact
2
Cross-section
4 mm

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.
Installation
11
3.5.2 Grid Connection
MC
STOP !
MC
MC
STOP !
MC
Note:
You’ll hear click sound when the
connector assembly is correct
Step 3
Note：
It is strongly recommended that BNT003-010KTL be connected to 2 strings
of panels, BNT012-015KTL to 3 strings of panels, and BNT012-015KTL to 4
strings of panels.

·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 12
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.
Note:
Please use PV connector crimper
to pinch the point of the arrow
Unscrew the row of screws, insert the wire harness into the N, W, V, U caps one by one, and
tighten the screws
N=Neutral line
W, V, U=Live line
Step 1
Step 2
10±0.5mm
Sectional Area > 6mm²

To prevent electric shock, the user must connection a second
protective earth (PE) terminal at the side of the inverter. And
make sure this PE terminal is reliable grounding.
Installation
13
3.5.3 Earth Connection
Step 3
Fix junction box with screw
Step 1
3~5 mm
Grounding terminal
Note: copper cable or aluminum cable more than 6mm²
4x

Installation 14
Step 2
Grounding terminal is connected to any ground terminal below
the left and right sides of the machin
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
3.5.4 Communication Connection
Fasten
Step 1 Step 2

13 14 16 17 19 21 24 25
Installation
15
Step 1
Step 2
13 14 16 17 19 21 24 25
1 4 7 10
Install the Zero Injection Smart Meter(optional)
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.
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
1
35
24
UP
DOWN
ESC
ENT
6
POWER FAULTCOM
IItteemmssNNoo.. IItteemmssNN oo..
1
2
3
4
5
6
LCD Display
FAULT LED Indicator
COM LED Indicator
ESC Touch Button
UP Touch Button
DOWN Touch Button
ENT Touch Button
POWER LED Indicator
Grid
Load
PV Inverter
PV Inverter
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
Note:
The Inverter could be connected in parallel with Smart Meter,
make sure the total load power not exceed Smart Mater’s limitation.

wifi Info
xxx
SN：xxx
Operation
17
4.2 Menu Structure
System Info
Safty:xxx
Case_Temp:xxx C
ModleTemp:xxx C
Screentemp:xxx C
Rated Power:xx KW
PG1Imp:xx K
NG1Imp:xx K
PG2Imp:xx K
NG2Imp:xx K
SN Number
Hmi：xxx
Build：00.0.000.000
Sn：Txxx
Dsp:xxx
PQ mode
OFF
Power Factor
GridPowerCtrl
CTRL：OFF/ON
POWER:3000.0 KWH
Date Time
Date Dd-Mm-2020
Time Hh:Mm:Ss
Clear Record
Clear Err Record
Clear Run Record
Pdet:xx %
RComp:xx %
SET Para View:
Vac.Max:xx V
Vac.Min:xx V
Fac.Max:xx Hz
Fac.Min:xx Hz
Risomin:xx Ko
DCI Max:xx ma
TembientMax:xx C
TmoduleMax:xx C
OffDiffMax：xx
VacUnba：xx %
Safty:xxx
EnergyK:105.00
Error Record No Error
PV Limit
PV A:xx%
PV B:xx%
Active Island
OFF
ON
RS485 Address
Address;xxx
BaudRate:9600

Operation
18
Explanation of LCD Display Content
4.3.1 Startup Setting
4.3 Setting
UP/DOWN
Switch countries
UP/DOWN
Adjust the time
Afore New Energy Please Choose
Your Country
1s Delay
Enter
Enter
Enter
Enter
Please Set
Day & Time
Date Dd-Mm-2015
Time Hh-Mm-Ss
Waiting Xx
Power: XXW
CY China
Set Eng1G83
Nouns Explanation
Inverter Info Display the serial number and firmware version of inverter
check the error list of inverter including date and time
Display the WIFI serial number and assigned IP address
Displays the error records of inverter
Set date and time of the inverter
Enable or disable Zero-injection function
Set safety standard
Set grid frequency protection range
Set the protection parameters of inverter
Error record
WiFi Info
Error Record
Date & Time
Zero Injection
Freq. Rnage
Set power factor, active / reactive powerPQ Mode
Set grid voltage protection range
Volt, Range
Safty
Setting