X3 Series
4.0kW - 10.0kW
User Manual
Solax Power Network Technology(Zhe jiang) Co,. Ltd.
614.00235.05
Copyright Declaration
The copyright of this manual belongs to Solax Power Network Technology(Zhe jiang) Co,. Ltd.. Any
corporation or individual should not plagiarize, par titially or fully copy (including software,etc.),
and no reproduction or distribution of it in any form or by any means. All rights reserved. SolaX
Power Network Technology (Zhe jiang) Co.,Ltd.. reser ves the right of final interpretation.
Contents
Contents
1 Note on this Manual
1.1 Scope of Validity
1.2 Target Group
1.3 Symbols Used
2 Safety
2.1 Appropriate Usage
2.2 Important Safety Instructions
2.3 Explanation of Symbols
2.4 EC Directives
3 Introduction
3.1 Basic Features
3.2 Terminals of Inverter
3.3 Dimension
4 Technical Data
4.1 DC Input
4.2 AC Output
4.3 Efficiency, Safety and Protection
4.4 General Data
03
03
03
03
04
04
06
08
09
11
11
11
12
13
13
13
14
14
5 Installation
5.1 Check for Transport Damage
5.2 Packing List
5.3 Installation Precaution
5.4 Installation Steps
5.5 Connection of the Inverter
5.6 Run the Inverter
6 Operation Method
6.1 Control Panel
6.2 LCD Function
6.3 LCD Operation
15
15
15
16
17
18
28
29
29
30
31
01
Notes on this Ma nualContents
7 Troubleshooting
7.1 Trouble Shooting
7.2 Routine Maintenance
8 Decommissioning
8.1 Dismantling the Inverter
8.2 Packaging
8.3 Storage and Transportation
40
40
43
44
44
44
44
1 Notes on this Manual
1.1 Scope of Validity
This manual is an integral part of X3 Series, It describes the assembly,
installation, commissioning, maintenance and failure of the product. Please
read it carefully before operating.
X3-4.0-T-D X3-5.0-T-D
X3-4.0-T-N X3-5.0-T-N
X3-4.0-S-D X3-5.0-S-D
X3-4.0-S-N X3-5.0-S-N
X3-6.0-T-D X3-7.0-T-D X3-8.0-T-D X3-9.0-T-D X3-10.0-T-D
X3-6.0-T-N X3-7.0-T-N X3-8.0-T-N X3-9.0-T-N X3-10.0-T-N
Note: “4.0” means 4.0kW. ”T” means “dual” MPPT strings. ”S” means “single
MPPT. “D” means with “DC Switch”, ”N” means without “DC Switch”.
Keep this manual at where is accessible all the time.
1.2 Target Group
This manual is for qualified electricians. The tasks described in this manual
only can be performed by qualified electricians.
1.3 Symbols Used
The following types of safety instructions and general information appear in
this document as described below:
Danger！
“Danger” indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Warning！
“Warning” indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
Caution！
“Caution” indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
Note！
“Note” provides tips that are valuable for the optimal
operation of your product.
0302
SafetySafet y
2 Safety
2.1 Appropriate Usage
The X3 Series are PV inverters which can convert the DC current of the PV
generator into AC current and feed it into the public grid.
Inverter
Distribution
Box
gure1
Surge protection devices (SPDs) for PV installation
►
WARNING !
Over-voltage protection with surge arresters should be provided
when the PV power system is installed.
The grid connected inverter is fitted with SPDs in both PV
input side and MAINS side.
Lightning will cause a damage either from a direct strike or from surges due to a
nearby strike.
Induced surges are the most likely cause of lightning damage in majority or installations,
especially in rural areas where electricity is usually provided by long overhead lines.
Surge may be included on both the PV array conduction and the AC cables
leading to the building.
Specialists in lightning protection should be consulted during the end use application.
Using appropriate external lightning protection, the effect of a direct lightning
strike into a building can be mitigated in a controlled way, and the lightning
current can be discharged into the ground.
Installation of SPDs to protect the inverter against mechanical damage and
excessive stress include a surge arrester in case of a building with external
lightning protection system (LPS) when separation distance is kept.
To protect the DC system, surge suppression device (SPD type2) should be fitted
at the inverter end of the DC cabling and at the array located between the
inverter and the PV generator, if the voltage protection level (VP) of the surge
arresters is greater than 1100V, an additional SPD type 3 required for surge protection
for electrical devices.
Distribution
Box
A
To protect the AC system, surge suppression devices (SPD type2) should be
fitted at the main incoming point of AC supply (at the consumer’s cutout),
located between the inverter and the meter/distribution system; SPD (test
impulse D1) for signal line according to EN 61632-1.
All DC cables should be installed to provide as short a run as possible, and positive
and negative cables of the string or main DC supply should be bundled
together. Avoiding the creation of loops in the system. This requirement for
short runs and bundling includes any associated earth bundling conductors.
Spark gap devices are not suitable to be used in DC circuits once conducting,
they won’t stop conducting until the voltage across their terminals is typically
below 30 volts.
Anti-Islanding Effect
►
1
Islanding effect is a special phenomenon that grid-connected PV
system still supply power to the nearby grid when the voltage loss is
happened in the power system. It is dangerous for maintenance
personnel and the public.
X3 series provide Active Frequency Drift(AFD) to prevent islanding
effect.
04
05
SafetySafety
2.2 Important Safety Instructions
Danger!
Danger to life due to high voltages in the inverter!
All work must be carried out by qualified electrician.
The appliance is not to be used by children or persons with
reduced physical sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given
supervision or instruction.
Children should be supervised to ensure that they do not play
with the appliance.
Caution!
Danger of burn injuries due to hot enclosure parts!
During operation, the upper lid of the enclosure and the
enclosure body may become hot.
Only touch the lower enclosure lid during operation.
Caution!
Possible damage to health as a result of the effects of radiation!
Do not stay closer than 20 cm to inverter for any length of time.
Note!
Grounding the PV generator.
Comply with the local requirements for grounding the PV
modules and the PV generator. SolaX recommends connecting
the generator frame and other electrically conductive surfaces
in a manner which ensures continuous conduction and ground
these in order to have optimal protection of system and persons.
Warning!
Ensure input DC voltage ≤Max. DC voltage .Over voltage
may cause permanent damage to inverter or other losses,
which will not be included in warranty!
Warning！
Authorized service personnel must disconnect both AC and
DC power from X3 series before attempting any maintenance
or cleaning or working on any circuits connected to the X3
series.
WARNING !
Do not operate the inverter when the device is running.
WARNING !
Risk of electric shock!
Prior to the application, please read this section carefully to ensure correct
and safe application. Please keep the user manual properly.
Use only attachments recommended or sold by SolaX. Otherwise may
result in a risk of fire, electric shock, or injury to person.
Make sure that existing wiring is in good condition and that wire is not
undersized.
Do not disassemble any parts of inverter which are not mentioned in
installation guide. It contains no user-serviceable parts. See Warranty for
instructions on obtaining service. Attempting to service the X3 Series
inverter yourself may result in a risk of electric shock or fire and will void
your warranty.
Keep away from flammable, explosive materials to avoid fire disaster.
The installation place should be away from humid or corrosive substance.
Authorized service personnel must use insulated tools when installing or
working with this equipment.
PV modules shall have an IEC 61730 class A rating.
Never touch either the positive or negative pole of PV connecting device.
Strictly prohibit touching both of them at the same time.
The unit contains capacitors that remain charged to a potentially lethal voltage
after the MAINS and PV supply has been disconnected.
Hazardous voltage will present for up to 5 minutes after disconnection from
power supply.
CAUTION-RISK of electric shock from energy stored in capacitor,. Never operate
on the solar inverter couplers, The MAINS cables, PV cables or the PV generator
when power is applied. After switching off the PV and Mains, always wait for
5minutes to let the intermediate circuit capacitors discharge before you unplug
DC and MAINS couplers.
When accessing the internal circuit of solar inverter, it is very important to wait
5minutes before operating the power circuit or demounting the electrolyte
capacitors inside the device. Do not open the device before hand since the
capacitorstime to sufficiently discharge! require
Measure the voltage between terminals UDC+ and UDC- with a multi-meter
(impedance at least 1Mohm) to ensure that the device is discharged before
beginning work (35VDC) inside the device.
0706
SafetySafety
PE Connection and Leakage Current
• The end-use application shall monitor the protective conductor by residual
current operated protective device (RCD) with rated fault current Ifn≤240mA
which automatically disconnects the device in case of a fault.
• DC differential currents are created (caused by insulation resistance and through
capacities of the PV generator). In order to prevent unwanted triggering during
operation, the rated residual current of the RCD has to be min 240mA.
The device is intended to connect to a PV generator with a capacitance limit of
approx 700nf.
WARNING !
High leakage current!
Earth connection essential before connecting supply.
• Incorrect grounding can cause physical injury, death or equipment malfunction
and increase electromagnetic.
• Make sure that grounding conductor is adequately sized as required by safety
regulations.
• Do not connect the ground terminals of the unit in series in case of a multiple
installation. This product can cause current with a d.c component, Where a residual
current operated protective (RCD) or monitoring (RCM) device is used for protection
in case of direct or indirect contact, only an RCD or RCM of type B is allowed
on the supply side of this product.
For United Kingdom
• The installation that connects the equipment to the supply terminals shall
comply with the requirements of BS 7671.
• Electrical installation of PV system shall comply with requirements of BS 7671
and IEC 60364-7-712.
• No protection settings can be altered.
• User shall ensure that equipment is so installed, designed and operated to
maintain at all times compliance with the requirements of ESQCR22(1)(a).
For Australia and New Zealand
• Electrical installation and maintenance shall be conducted by licensed
electrician and shall comply with Australia National Wiring Rules.
Symbols on the Inverter
SymbolExplanation
Operating Display.
Communication is active.
An error has occurred, please inform your installer immediately.
Symbols on the Type Label
SymbolExplanation
CE mark.
The inverter complies with the requirements of the applicable
CE guildlines.
RCM remark.
SAA certification.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact
during operation.
Danger of high voltages.
Danger to life due to high voltages in the inverter!
Danger.
Risk of electric shock!
Observe enclosed documentation.
2.3 Explanation of Symbols
This section gives an explanation of all the symbols shown on the inverter and
on the type label.
The inverter can not be disposed together with the household waste.
Disposal information can be found in the enclosed documentation.
Do not operate this inverter until it is isolated from mains
and on-site PV generation suppliers.
Danger to life due to high voltage.
There is residual voltage in the inverter which needs 5 min to
discharge.
• Wait 5 min before you open the upper lid or the DC lid.
RoHS certificate
The inverter complies with the requirements of Restriction of
Hazardous Substances.
0908
SafetyIntroduction
2.4 CE Directives
This chapter follows the requirements of the European low voltage directives,
which contains the safety instructions and conditions of acceptability for the
endues system, which you must follow when installing, operating and
servicing the unit. If ignored, physical injury or death may follow, or damage
may occur to the unit. Read this instructions before you work on the unit. If
you are unable to understand the dangers, warnings, cautions or instructions,
please contact an authorized service dealer before installing. Operating and
servicing the unit.
The Grid connected inverter meets the requirement stipulated in Low
Voltage Directive (LVD) 2014/35/EU and Electromagnetic Compatibility (EMC)
Directive 2014/30/EU. The unit is based on:
EN 62109-1:2010 ; EN 62109-2:2011 ; IEC 62109-1(ed.1) ; IEC62109-2(ed.1)
EN 61000-6-3:2007+A:2011 ; EN 61000-6-1:2007 ; EN 61000-6-2:2005
In case of installation in PV system, startup of the unit (i.e. start of designated
operation) is prohibited until it is determined that the full system meets the
requirements stipulated in EC Directive (2014/35/EU,2014/30/EU, etc.)
The grid connected inverter leave the factory completely connecting device
and ready for connection to the mains and PV supply ,the unit shall be
installed in accordance with national wiring regulations. Compliance with
safety regulations depends upon installing and configuring system correctly,
including using the specified wires. The system must be installed only by
professional assemblers who are familiar with requirements for safety and
EMC. The assembler is responsible for ensuring that the end system complies
with all the relevant laws in the country where it is to be used.
The individual subassembly of the system shall be interconnected by means
of the wiring methods outlined in national/international such as the national
electric code (NFPA) No.70 or VDE regulation 0107.
3. Introduction
3.1 Basic features
Thanks for your purchasing with SolaX X3 Serial inverter. The X3 Series
inverter is one of the finest inverters on the market today, incorporating
state-of-the-art technology, high reliability, and convenient control
features.
Advanced DSP control technology.
Utilize the latest high-efficiency power component.
Optimal MPPT technology.
- Two independent MPP Tracking.
- Wide MPPT input range.
Advanced anti-islanding solutions.
IP65 protection level.
Max. efficiency up to 98.5%.EU efficiency up to 98%.
THD<2%.
Safety &Reliability: transformerless design with software and hardware
protection.
Export control.
Power factor regulation.
Friendly HMI.
- LED status indications.
- LCD display technical data, Human-machine interaction through press
key.
- PC remote control.
- Upgrade through USB interface.
- Pocket Wi-Fi/Lan monitoring.
- Control loads’ switch intelligently by RF.
- Energy conservation.
3.2 Terminals of inverter
FGHIJ
B
A
1011
D
C
E
Introduction Technic al Data
Object
ADC Switch (optional)
B
C
D
E
F
G
H
I
J
Warning!
Only authorized personnel is allowed to set the connection.
3.3 Dimension
Dimension
Ø
534mm
Description
DRM
Smart plug (optional)
USB for Upgrade
AC Connector
Waterproof plug
Pocket WiFi/Lan/GPRS (all optional)
RS 485/ Meter(optional)
PV Connector
Ground screw
201mm
419mm
4. Technical Data
4.1 DC input
X3-4.0-T-D/
Model
Max. recommended DC power [W]
Max. DC voltage[V]
Norminal DC operating voltage[V]
Operating voltage range [V]
MPPT voltage range@full load [V ]
Max. input current [A]
Max. short circuit current [A]
Start input voltage [V]
Start output voltage [V]
No. of MPP trackers
Strings per MPP tracker
DC disconnection swtich
4.2 AC output
Model
Rated output power [W]
Max.apparent AC power [VA]
Rated grid voltage and range [V]
Rated AC frequency and range [Hz]
Max AC current [A]
Max. output fault current [A]
Max. output overcurrent protection(A)
Max. inverter backfeed current to
the array(mA)
Inrush current(A)
THD
Displacement power factor
Feed in phase
Over voltage category
X3-5.0-T-D/
X3-4.0-T-NX3-5.0-T-N
5200
800
600
160-780
160-780
174-750
220-750
12/12
12/12
14/14
14/14
140
180
2
1
X3-4.0-T-D/
X3-5.0-T-D/
X3-4.0-T-N X3-5.0-T-N
5000
4000
5500
4400
8.0
6.4
9.0
7.4
X3-7.0-T-D/
X3-6.0-T-D/
X3-7.0-T-N
X3-6.0-T-N
6500
7800
800
800
600
600
160-780
261-750
12/12
14/14
140
140
180
180
2
2
1
1
X3-7.0-T-D/
X3-6.0-T-D/
X3-7.0-T-N
X3-6.0-T-N
6000
7000
6600
7700
3/N/PE,230/400 (310-480)
50(45-55)/60(55-65)
9.6
10.6
0.8 leading-0.8lagging
(electric supply side), ( side)IIIIIPV
8400
1000
600
160-950
302-800
12/12
14/14
140
180
2
1
optional
11.2
12
three-phase
X3-8.0-T-D
X3-8.0-T-N
9600
1000
600
160-950
348-800
12/12
14/14
140
180
2
1
X3-8.0-T-D/
X3-8.0-T-N
8000
8800
12.8
13.8
20
0
27
<2%
X3-9.0-T-D/
X3-9.0-T-N
10800
1000
600
160-950
390-800
12/12
14/14
140
180
2
1
X3-9.0-T-D/
X3-9.0-T-N
9000
9900
14.3
15.4
X3-10.0-T-D/
X3-10.0-T-N
12000
1000
600
160-950
430-800
12/12
14/14
140
180
2
1
X3-10.0-T-D/
X3-10.0-T-N
10000
11000
15.9
17.0
X3-4.0-S-D/
X3-5.0-S-D/
X3-4.0-S-NX3-5.0-S-N
4800
6000
1000
1000
600
600
160-950
160-950
348-800
430-800
12
12
14
14
140
140
180
180
1
1
1
1
X3-4.0-S-D/
X3-5.0-S-D/
X3-4.0-S-NX3-5.0-S-N
4000
5000
4400
5500
6.4
8.0
7.4
9.0
1213
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