KSolare 5G PRO KSY-15KW User manual

User Manual
5G PRO INVERTER
KSY:- 15KW- 25KW - 3Ph
Three-Phase Grid-tied Solar Inverter

CATALOGUE
1. SYMBOLS ON THE LABEL ....................................................................................................... 3
2. SAFETY AND WARNINGS ...................................................................................................... 3
3. UNPACKING ............................................................................................................................... 4
3.1 Scope of Delivery ..................................................................................................................................... 4
3.2 Product Overview
........................................................................................................... 5
4. INSTALLING ............................................................................................................................... 6
4.1 Installation Requirement ................................................................................................
6
4.2 Mounting Location ........................................................................................................ 7
4.3 Mounting ....................................................................................................................... 8
4.4 Installing the PE cable .................................................................................................. 8
5. COMMISSIONING .................................................................................................................. 09
5.1 Safety Instructions ....................................................................................................... 10
5.2 AC Wire Assembly and Connection ........................................................................... 12
5.3 DC Wire Assembly and Connection ........................................................................... 13
5.4 Residual Current Protection ........................................................................................ 13
6. COMMUNICATION ................................................................................................................... 12
6.1 System monitoring via Datalogger - RS485/Wi-Fi /GPRS (Optional) ........................ 12
7. START UP AND OPERATION ................................................................................................. 13
7.1 Safety Check Before Start Up .........................................................................................13
7.2 Inverter LED Indicators ...................................................................................................14
8. DISCONNECTING FROM VOLTAGE RESOURCES ..............................................................15
10. TROUBLE SHOOTING ............................................................................................................ 16
11. SYSTEM MAINTENANCE ....................................................................................................... 18
12. RESTARTS .................................................................................................................................. 19

-
1. SYMBOLS ON THE LABEL
DANGER, WARNING AND
CAUTION
RECYCLABLE AND REUSABLE
HIGH VOLTAGE
AVOID CONTACT
AVOID DAMP AND MOISTURE
HIGH TEMPERATURE
AVOID CONTACT
SHIPMENT STACK LIMIT: 7
CE MARKS
DO NOT DISPOSE WITH
HOUSEHOLD WASTE
PROCEED OPERATIONS
AFTER 5 MINUTES
DISCHARGE
BREAKABLE ITEM
PLACE UPWARDS USER MANUAL IN PACK
2. SAFETY AND WARNINGS
1. All persons who are responsible for mounting, installation, commissioning,
maintenance, tests, and service of KSOLARE inverter products must be suitably
trained and qualied for corresponding operations. They MUST be experienced and
have knowledge of operation safety and professional methods. All installation
personnel must have knowledge of all applicable safety information, standards,
directives, and regulations.
2. The product must ONLY be connected and operated with PV arrays of protection
class II, in accordance with IEC 61730, application class A. The PV modules must also
3

-
be compatible with this product. Power resources other than compatible PV arrays
MUST not be connected and operate with the product.
3. When designing or constructing a PV system, all components MUSTremain in their
permitted operating ranges, and their installation requirements MUST always be
fullled.
4. Under exposure to sunlight, the PV array may generate dangerous output in DC
voltage. Contacts with the DC wires, conductors and live components in the inverter
may result in lethal shocks.
5. High voltages in inverter could cause lethal electrical shocks. Before proceeding any
work, including maintenance and/or service, on the inverter, fully disconnect it from
all DC input, AC grid and other voltage sources. There MUST be a 5 -minute waiting
time after the full disconnection.
6. The DC input voltage of the PV array MUST never exceed the maximum input
voltage of the inverter.
7. DO NOT touch parts of the inverter during operation as heat will be induced and
these parts willexceed 60 0.
3. UNPACKING
3.1 Scope of Delivery
Please inspect and check for completeness in the scope of delivery. Conrm with
purchase order.
INVERTER MOUNTING
BRACKET
MOUNTING
ACCESSORIES
DCPLUGS
(sealed) ACCONNECTOR
COM
DATALOGGER
(OPTIONAL)
METER / DRED
CONNECTOR
OPTIONAL
DOCUMENTS
1 1 1 24 1 1 1
3.2 Product Overview
The total size of KSY -15KW/18KW/20KW/25KW is 425(width) ×351(height) ×200(depth) mm. It
has 4 pairs of PV input terminals and 2 communication ports . It also has a LED & LCD (or
just LED, determined by user) for getting information and setting parameters at eld.
4

5
The detail description is shown below:
Mark Num . Component Description
1 LED&L CD or LED Display and setting device at eld
2 DC Switch For switch on/o the inverter
3 PV Terminal (s) Connected with PV Panel
4 COM1: Wi- Fi/GPRS/RS485 Alternative distant communication method
5 COM2: METER /DRED For smart - meter or DRED
6 Secondary PE Terminal For Grounding Protection
7 AC Terminal Connected with A C Grid

6
4. INSTALLING
4.1 Installation Requirement
1. Please install the inverter(s) in placesthat can avoid inadvertent contact.
2. Installation method, location and surface must be tting for the inverter’s weight and
dimensions.
3. Please install the inverter in an accessible location for operation, future maintenance
and service.
4. The inverter performance peaks at ambient temperature lower than 450.
5. When installing in residential or domestic environment, it is recommended to install
and mount the inverter on a solid, concrete wall surface. Mounting the inverter on
composite or plaster boards or walls with similar materials would induce noise during
its operation and is therefore not recommended.
6. DO NOT cover the inverter NOR place any objects on top of the inverter.
7. To ensure sucient room for heat dissipation and maintenance, the clearing space
between inverter(s) and other surroundings is indicated below for reference:
8. Avoid direct exposure to sun light and rain and snow layup.

7
4.2 Mounting Location
1. DO NOT mount the inverter near any inammable materials .
2. DO NOT mount the inverter near any explosive materials .
3. DO NOT mount the inverter on tilting surface over 15° backwards . Please mount the
inverter on a vertical wall surface.
4. DO NOT mount the inverter on any surfaces tilting forward or to either sides.
5. DO NOT mount the i nverter on a horizontal surface.
6. For easy installation and operation, please m ount the inverter on a height that the
display could match eye level.
7. The bottom side where a ll commissioning terminals are equipped MUST always point
downwards.

8
4.3 Mounting
1. Use the mounting bracket as a template and drill holes of 10mm diameter and
70mm depth.
2. Fix the mounting bracket with the screws and expansion bolts packed in mounting
accessories.
3. Hold up the inverter and tilt it slightly forward. Hang up the inverter and attach it to
the mounting bracket. Check both sides of the heat sink to ensure its s tably attached.
4. Use M5 screws (T25 screwdriver, torque 2.5 Nm) to attach the heatsink ns to the
mounting bracket.
5. It is recommended to attach the anti - theft lock to the inverter. Lock diameter φ4-
5.5mm recommended .
4.4 Installing the PE cable
1. Insert the grounding conductor into the suitable terminal lug and crimp the contact.
2. Align the terminal lug with the grounding conductor and the ground washer on the
screw. The teeth of the ground washer must be facing the housing.
3. Tighten it rmly into the housing (screwdriver type: T25, torque: 2.5Nm).

9
Information on grounding components:
Object Description
1 Housing
2 M5 terminal lug with protective conductor
3 M6×12 pan headscrew
PE Conductor cross - section: 16 mm²
5. COMMISSIONING
5.1 Safety Instructions
1. Measure the frequency and voltage of grid connection and make sure they follow the
inverter’s grid connection specications.
2. An external circuit- breaker on the AC side (or a fuse)at1.25*AC rated current is
strongly recommended.
3. Reliability of all earth connections must be tested and valid .
4. Before commission ing, disconnect the inverter and the circuit - breaker or fuse, and
prevent accidental reconnection.

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5.2 AC Wire Assembly and Connection
5.2.1 AC Commissioning
5.2.2 AC Switch Types
Please install an individual 2 - stage miniature circuit breaker according to the following
specications.
Model Maximum output current
（
A
）
AC Breaker Rated current
（
A
）
KSY - 15KW 24 32
KSY - 18KW 27.6 32
KSY - 20KW 31.9 40
KSY - 25KW 36.3 50

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5.3 DC Wire Assembly and Connection
1. PV modules of the connected strings must be of: the same time, identical alignment
and tilting angle.
2. Before commissioning and connecting the PV arrays, the DC switch MUST be open.
3. Parallel strings must have the same number of modules.
4. It is mandatory to use the DC connectors within package for the connection of PV
arrays.
5. The polarity of the PV arrays MUST be compatible to the DC connectors of the
inverter.
6. The DC input voltage AND DC input current of the PV array MU ST never exceed the
maximum input allowance of the inverter.
DC Commissioning ：
5.4 Residual Current Protection
This product is equipped with residual current protection device internally , in accordance
with IEC 60364 - 7- 714. An external residual current protection device is not needed.
If the local regulation demands otherwise, it is recommended to install a 30mA Type B
residual current protection device.
1000V
1000V

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6. COMMUNICATION
6.1 System monitoring via Datalogger - RS485/ Wi - Fi /GPRS (Optional )
6.1.1 Wi- Fi /GPR S Datalogger Installation
Unpack the Datalogger from package.
Unscrew the cap in COM1 port and plug
the Datalogger in and tighten.
For user guidance and conguration of
Datalogger, please refer to the
corresponding KSOLARE Wi- Fi Stick Guide manual, which is available in
printed form inside Documents pack, or an online manual on KSOLARE
website at
www.ksolare.com
.
6.1.2 RS485/Smart Meter/DRED Connection

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7. START UP AND OPERATION
7.1 Safety Check Before Start Up
Please check before switching on any v oltage resources connected to the inverter and
closing inverter’s DC switch:
1. Grid Voltage: Check the grid voltage at point of connection at the inverter complies
with permitted range of the inverter.
2. Mounting Bracket: Check if the mounting bracket is properly and securely installed.
3. Mounting of the inverter: Check if the inverter is properly mounted and attached to
the mounting bracket.
4. DC Connectors: Check if the DC connectors are installed correctly on terminals.
5. AC Connectors and Wire Assembly: Check if wires are assembled correctly on the AC
side and if the AC connector is properly and securely installed. Check if the AC
connector is rmly plugged into AC terminal.
6. Cables: Check if all cables are reliably connected. Check if the connections are
eective, while the insulations are undamaged.
7. Groundings: Check all groundings using multimeter and if all exposed metal parts of
the inverter are properly grounded.
8. DC Voltage: Check if the largest open - circuit voltage of PV arrays complies with the
permitted range.
9. DC Polarity: Check if the wires from DC voltage resource are connec ted to terminals
with correct polarity.
10.Grounding Resistance: Check if the grounding resistance of PV strings >1MOhm using
a multimeter.
After all installation and checks, close the AC circuit- breaker, then the DC switch. The
inverter will start to operate when DC input voltage and grid conditions meet the
requirements of inverter startup.

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7.2 Inverter LED Indicators
When the inverter operates, LED symbols on display have the following meanings:

15
8. DISCONNECTING FROM VOLTAGE RESOURCES
Before proceeding any operations on inverter, please disconnect the inverter from all
voltage resources as described in this manual.
Following these steps in described sequence are mandatory.
1. Disconnect miniature circuit - breaker and prevent from unintentional reconnections.
2. Open the DC switch and prevent the switch from closing unintentionally.
3. Use clamps to ensure there is no electrical current in DC wires.
4. Disconnect all DC connections and resources. Unplug the DC connectors,and DO
NOT pull the cables.
5. Use multimeter to ensure the voltage on DC terminals of inverter is 0.
6. Unscrew and remove the AC connector.
Danger to life due to high voltages.
Inverter capacitors need 10 minutes to be completely de -energized.
When an error occurs, DO NOT remove the cover of the inverter onsite. Improper
operations and attempts may induce electric shock.

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Fault Finding
Classifications of Fault Information
Fault
Location
Fault Type Error Message
DC Side Fault
Failures caused by PV side wirin
g
F5 - PV voltage too high
F6 - Surface insulation resistance
error
F7 - GFCI exceeds the permissible
range
AC Side Fault
Various faults caused by abnormal
power grid or AC side wiring
F0 - 10min average voltage over
the protection range
F9 - No gird
F10 - The grid voltage is out of
range
F11 - The grid frequency exceeds
the range
F19 - The voltage of N-PE is too
high
Inverter Fault
Fault code caused by inverter itself
F1 - MCU fault
F2 - Current sensor fault
F3 - GFCI sensor fault
F4 - Relay fault
F12 - Dc component out of range
F13 - EEPROM fault
F14 - Master and slave DSP
communicationfailure
Others
It may be caused by external
installation environment, PV side
and inverter itself. Further
Diagnoses needed.
F8 - Temperature is out of range
F15 - BUS voltage is too high
F16 - BUS voltage is too low
F17 - DRM S9 fault
F18 - DRM S0 fault

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Log complaint on h�ps://bit.ly/3eRZba9
Contact 8530111222 / 7888009282 / 7030955507 /01
Fault code Fault Solution
Fault 9
No Grid
1. Check Ac ( grid ) Voltage In connector
2. Phase to Neutral voltages
200V – 250V
3. Phase to Phase Voltage
400V – 450V
Fault 10
The grid voltage is out
of range
1. Check Grid voltages
2. Phase to Neutral voltages
200V – 250V
3. Phase to Phase Voltage
400V – 450V
Fault 19
The voltage of N-PE is
too high
1.
Check Ac side Neutral to Ground
voltage less than 15V
Waiting
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1. Check Connection in AC connector
2. Grid voltages ininverter
3. check version & make Online system
Fault code Fault Solution
Fault 5
PV voltage too high
1. Check DC side voltages
2. For single phase voltage under 500V
3. For Three phase voltage under 1000V
Fault 6
Surface insulation
resistance
error
1.Check DC side Positive to Ground voltage
& Negative to Ground voltage
Display Off
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1.Checkstring polarity
2. Check DC voltage
For single phase 1kw -3.3kw start up
voltage 80V – 500V
For single phase 4kw -6.2kw start up
voltage 100V – 550V
For Three phase 3kw -60kw start up
voltage 200V – 1000V
For Three phase 60kw -110kw start
up voltage 250V – 1100V
3. Loose connection in string / loose
crimping
Faults & Troubleshooting
Grid (AC) Side faults
( Panel ) DC Side faults

11. SYSTEM MAINTENANCE
Content Maintenance Measures Cycle
System
Cleaning
• Check if the heat sink is covered and dusted
Annually OR Half a year
System Status
• Inspect the enclosure for damage/deformation
• Check if the parameters are normal during
operation
Half a year
Commissioning
•Check if the cables are loose
•Check if the cable insulations are damaged,
especially the parts in contact with metal surfaces
Half a year after rst
commissioning
Annually OR Half a year
Grounding • Check if the cables are securely grounded
Half a year after rst
commissioning
Annually OR Half a year
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12.RESTART S
When reconnecting the inverter for electrical power supply, please follow the
commissioning procedures and safety instructions as described in Section 6 when
applicable (e.g. DC Wires need to be reassembled).
Please run safety checks as described in Section 7 before closing the DC Switch and
starting up again.
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Poonam petrol pump, KSolare Technology Park, Sr.No. 62,
Hissa No.03, Mangdewadi, Pune, Maharashtra 411046
Enquiry Email: [email protected]
Service Email:
[email protected]
Contact: 8530111222
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