SolaX Power X1-6.0-T-D, X1-7.0-T-D, X1-7.0-T-N, X1-8.0-T-N, X1-8.0-T-D User Manual

X1 Series

6.0kw - 8.0kw

User Manual

SolaX Power Network Technology(Zhe jiang) Co., Ltd.

614.00368.00

Copyright Declaration

The copyright of this manual be longs to SolaX Power Networ k Technology(Zhe ji ang) Co.,
Ltd.. A ny cor poration or individual should not p la giar ize, par tially or fully copy (includin g

software,etc.), and no re prod uc tion or distributio n of i t in a ny form or by any means. All rights
res er ved. SolaX Power Netw or k Technolo gy ( Zh e ji ang) Co.,Ltd. . reserves t he r ight of final
interpretation.

Contents

Contents

1 Note on this Manual

1.1 Scope of Validity

1.2 Target Grou p

1.3 Symbols Used

2 Safety

2.1 Appropriate Usage

2.2 Impo rtant Safety Instructio ns

2.3 Explanat ion of Symbols

2.4 EC Directives

3 Introduction

3.1 Basic Fea tures

3.2 Terminals of I nver ter

3.3 Dimensio n

4 Technical Data

4.1 DC Inpu t

4.2 AC Output

4.3 Efficiency, Safety and Pro te ction

4.4 General Data

03

03

03

03

04

04

06

09

10

11

11

11

12

13

13

13

14

14

5 Installation

5.1 Check for Transport Damage

5.2 Packing List

5.3 Inst allation Precaution

5.4 Inst allation Steps

5.5 Connection of the I nver ter

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

Not es on thi s Manua lContents

7 Troubleshooting

7.1 Trouble Shooti ng

7.2 Routine Maintenance

8 Decommissioning

8.1 Dismantl ing the Inver ter

8.2 Packaging

8.3 Storage and Transportation

39

39

42

43

43

43

43

1 Notes on this Manual

1.1 Scope of Validity

This manual is an integral part of X1 Series, it describes the assembly, installation,
commissioning, maintenance and failure of the product. Please read it carefully
before operating.

X1-6.0-T-D X1-7.0-T-D X1-8.0-T-D
X1-6.0-T-N X1-7.0-T-N X1-8.0-T-N

Note: “6.0” means 6.0kW.

”T” means “double” MPPT strings.
“D” means with “DC Switch”.
”N” means without “DC Switch”.

Keep this ma nual at where is acce ssible 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:

02

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.

03

Safety

2 Safety

Surge protection devices (SPDs) for PV installation

►

Safety

2.1 Appropriate Usage

The X1 Series are PV inverters which can convert the DC current of the PV generator into
AC current and feed it into the public grid.

PV a rray

AC distri butio n box

Sur ge arre stor
Fuse
AC b rea ker

Load

Ele ctrical
gri d

DC distribu tion bo x

Sur ge arre stor
Fuse
DC b reake r

NFI

NF I conne ction

Warning!

Over-voltage protection with surge arresters should be provided
when the PV power system is installed.
The grid connected inverter is not 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.

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

►

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.
X1 series provide Active Frequency Drift(AFD) to prevent islanding
effect.

04

05

Safety Safety

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 X1 series before attempting any maintenance
or cleaning or working on any circuits connected to the X1
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 X1 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
capacitors time 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

Safety Sa fety

PE Connection and Leakage Current

• All inverters incorporate a certified internal Residual Current Device(RCD) in
order to protect against possible electrocution and fire hazard in case of a
malfunction in the PV array, cables or inverter.There are 2 trip thresholds for
the RCD as required for certification (IEC 62109-2:2011). The default value for
electrocution protection is 30mA,and for slow rising current is 300mA.

• If an external RCD is required by local regulations, check which type of RCD
is required for relevant eletric code. It recommends using a type-A RCD. The
recommended RCD values is 100mA or 300mA unless a lower value is required
by the specific local electric codes. When required by local regulations, the use

an RCD type B is permitted.

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.

• Installer shall ensure that equipment is so installed 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.

2.3 Explanation of Symbols

This section gives an explanation of all the symbols shown on the inverter and
on the type label.

Symbols on the Inverter

Symbol Explanation

Operating Display.

Communication is active.

An error has occurred, please inform your installer immediately.

Symbols on the Type Label

Symbol Explanation

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.

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.

0908

Safety Int roduc tion

2.4 EC Direc tives

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 X1 Series inverter. The X1 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 97.4%.EU efficiency up to 96.8%.
THD<3%.
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.

- Dry contact communication interface.

- PC remote control.

- Upgrade through USB interface.

- Pocket Wi-Fi monitoring.

- Energy conservation.

3.2 Terminals of inverter

A B C D E

RS485/NFI/DRM

PV2 PV1

OFF

ON

Upgrade

WIFI/LAN/GPRS

F G H

AC

10 11

Int roduc tion Technic al Data

4. Technical Data

Object

A DC Switch (optional)
B
C
D
E
F
G

H

Warning!

Only authorized personnel is allowed to set the connection.

3.3 Dimension

Ø

Dimension

DC Connector
RS 485/ NFI/DRM(optional)

AC Connector
Waterproof Valve
USB for Upgrade

Pocket WiFi (optional)

Grounding Screw

Description

4.1 DC input

Model

Max. recommended DC power [W ]

Max. DC voltage[V ]

Nominal DC operating voltage[V]

MPPT voltage range [V]

Max. input current [A]

Max. short circuit current [A]

Start input voltage [V ]

No. of MPP trackers

Strings per MPP tracker

DC disconnection switch

4.2 AC output

X1-6.0-T-D/

X1-6.0-T-N

3000/4000

550

360

100-500

11/22

12/24

120

2

1/2 1/2 1/2

X1-7.0-T-D/

X1-7.0-T-N

3000/5000

550

360

100-500

11/22

12/24

120

2

optional

X1-8.0-T-D/

X1-8.0-T-N

3000/6000

550

360

100-500

11/22

12/24

120

2

401mm

450mm

213mm

Model

Rated output power [W]

Max.apparent AC power [VA]

Rated grid voltage and range [V]

Rated AC frequency and range [Hz]

AC norminal current [A]

Max. output overcurrent protection(A)

Max. inverter backfeed current to
the array(mA)

Inrush current(A)

Total harmonic distortion of current

Displacement power factor

Feed in phase

X1-6.0-T-D/

X1-6.0-T-N

6000 7000 8000

6000 7000 8000

28 32 35

X1-7.0-T-D/

X1-7.0-T-N

220V/230/240:160-285V

50Hz;45-55Hz

45

0

37

<3%

1 / 0.8 leading... 0.8 lagging

single-phase

X1-8.0-T-D/

X1-8.0-T-N

12 13

Technic al Data Insta llati on

4.3 Efficiency, Safety and Protection

Model

MPPT efficiency

Euro efficiency

Max. efficiency

Safety & Protection

Over/under voltage protection

DC isolation protection

Monitoring ground fault protection

Grid protection

DC injection monitoring

Back feed current monitoring

Residual current detection

Anti-islanding protection

Over load protection

Over heat protection

X1-6.0-T-D/

X1-6.0-T-N

99.90%

96.80%

97.40%

4.4 General Data

Model

Dimension [ W/H/D](mm)

Dimension of packing [W/H/D](mm)

Net weight [kg]

Gross weight [kg]

Installation

Operating temperature range[℃]

Storage temperature [℃]

Storage/Operation relative humidity

Altitude [m]

Ingress Protection

Isolation type

Protective Class

Night-time consumption

Over Voltage Category

Pollution Degree

cooling

Noise level

Inverter Topology

Communication interface

Standard warranty [year]

14

X1-6.0-T-D/

X1-6.0-T-N

X1-7.0-T-D/

X1-7.0-T-N

99.90%

96.80%

97.40%

YES

YES

YES

YES

YES

YES

YES

YES

YES

YES

X1-7.0-T-D/

X1-7.0-T-N

450*401*190

560*492*305

22

25

Wall-mounted

-25~+60 (derating at 45)

-25~+60

0%~100%, non condensing

≤2000

IP65

Transformerless

Ⅰ

<1w

Ⅲ(MAINS),Ⅱ(P V)

Ⅱ

External: natural wind; Internal: intelligent fan

＜40dB

Non-isolated

RS485/ NFI(optional)/D RM,WIFI /GPRS/LAN/USB

Standard 5 years(10 years optional)

X1-8.0-T-D/

X1-8.0-T-N

Inverter+BMU

99.90%

96.80%

97.40%

X1-8.0-T-D/

X1-8.0-T-N

Inverter+BMU

5. Installation

5.1 Check for Transport Damage

Make sure the inverter is intact during transportation. If there are some
visible damages, such as cracks, please contact your dealer immediately.

5.2 Packing List

Open the package and fetch out the product, check the accessories at
first. The packing list shows as below.

A B

G

H

L

Object

B
C

D

E

F
G
H

I

J

K

L

M

I

M

Quantity

1
6
6

4
4
1

1
1
1

1

1

1

C

D

J

Description

X1 series inverter1A
Bracket
DC connector
DC pin contact(3*positive, 3*negative)
Expansion tube
Expansion screw
AC connector
Earth terminal

Product manual
Warranty card
Quick installation guide

Pocket WiFi( Optional )
NFI( Optional )

E F

X1 Series 6.0KW-8.0KW

K

15

Insta llati on Insta llati on

5.3 Installation Precaution

X1 Series inverter is designed for outdoor installation (IP 65).
Make sure the installation site meets the following conditions:
Not be exposed to glare.
Not in areas where highly flammable materials are stored.
Not in potential explosive areas.
Not in the cool air directly.
Not near the television antenna or antenna cable.
Not higher than altitude of about 2000m above sea level.
Not in environment of precipitation or humidity (＞95%).
Be sure the ventilation is good enough.
The ambient temperature in the range of -20℃ to +60℃.
The slope of the wall should be within ±5°.

The wall hanging the inverter should meet conditions below:

1.solid brick/concrete, or strength equivalent mounting surface;

2.Inverter must be supported or strengthened if the wall’s strength isn’t
enough(such as wooden wall, the wall covered by thick layer of decoration)

Please avoide direct sunlight, rain exposure, snow laying up during installing and
operating.

Available Space Size

Ø

5.4 Installation Steps

Preparation

Ø

Below tools are needed before installation.

Installation tools : crimping pliers for binding post and RJ 45, screwdriver,
manual wrench and Φ10 driller.

Step 1: Screw the wall bracket on the wall

Ø

a) Use the wall bracket as a template to mark the position of the 4
holes on the wall.
b) Drill holes with driller, make sure the holes are deep enough (at
least 50mm) for installation, and then tighten the expansion tubes.

c) Install the expansion tubes in the holes, and tighten them. Then

install the wall bracket by using the expansion screws.(torque: 12±

0.2Nm)

Step 2: Match the inverter with wall bracket

Ø

d) Hang the inverter over the bracket, move the inverter close to it,
slightly lay down the inverter, and make sure the 4 mounting bars on the
back are fixed well with the 4 grooves on the bracket.

30cm 30cm

16

30cm

30cm

Table Available Space Size

Position Min.size

Left
Right
Top

Bottom
Front

30cm
30cm
30cm
30cm
30cm

a)

c)

b)

d)

17

Insta llati on Insta llati on

5.5 Connection of the Inverter

5.5.1 The Main Steps to Connect to the Inverter

PV String Connection

Ø

X1series inverter have a couple of PV connectors which can be connected in
series into 2-strings PV modules. Please select PV modules with excellent function
and reliable quality. Open circuit voltage of module array connected should be ＜
Max.DC (table as follow) input voltage, and operating voltage should be within
the MPPT voltage range.

Table 3 Max. DC Voltage Limitation

Model

Max.DC Voltage

X1-6.0-T-D/

X1-6.0-T-N

Danger!

Danger to life due to high voltages on DC conductors.
when exposed to sunlight,the PV array generates dangerous DC
voltage which is present in the DC conductors.Touching the DC
conductors can lead to lethal electric shocks.
Cover the PV modules.
Do not touch the DC conductors.

Note!

Please choose a suitable external DC switch if the model (X1-6.0­T-N,X1-7.0-T-N,X1-8.0-T-N) is purchased.

Warning!

PV module voltage is very high which belongs to dangerous
voltage range, please comply with the electric safety rules when
connecting.

X1-7.0-T-D/

X1-7.0-T-N

550V

X1-8.0-T-D/

X1-8.0-T-N

Note!

PV connection mode below is not allowed!

+

+

PV1

-

+

PV2

-

-

Invert er

x

PV a rray

+

-

+

-

Connection Steps

a) Turn off the DC switch.
b) Choose 12 AWG wire to connect the PV module.
c) Trip 7mm of insulation from the wire end.
d) Separate the DC connector as below.

7.0 mm

trip length

d) Separate the DC connector as below.

plug

e) Insert striped cable into pin contact and ensure all conductor strand are
captured in the pin contact.
f ) Crimp pin contact by using a crimping pliers. Put the pin contact with
striped cable into the corresponding crimping pliers and crimp the
contact.(torque:1.2±0.1Nm)

12AWG

pin contact

cable nut

Warning!

Please do not mak e PV positive or negative ground!

Note!

Please follow the requirements of PV modules as below:
Same type; Same quantity; Identical alignment; Identical tilt.
In order to save cable and reduce the DC loss, we suggest
installing the inverter near PV modules.

18 19

g) Insert pin contact through the cable nut to assemble into back of the male
or female plug. When you feel or heard a “click” the pin contact assembly is
seated correctly.(torque:1.2±0.1Nm)

Insta llati on Insta llati on

Grid Connection

Ø

X1 series inverter are designed for single phase grid. Voltage range is
220/230/240V, frequency is 50/60Hz. Other technical requests should comply
with the requirement of the local public grid.

Table 4 Cable and Micro-breaker recommended

Model

Cable

Micro-breaker

*The parameters have some differences because of different environment and material. Please
according to the local conditions to choose appropriate cable and micro-breaker.

X1-6.0-T-D/

X1-6.0-T-N

12mm²

50A

X1-7.0-T-D/

X1-7.0-T-N

12mm²

50A

X1-8.0-T-D/

X1-8.0-T-N

12mm²

50A

Micro-breaker should be installed between inverter and grid, any loads should
not be connected with inverter directly.

Incorrect Connection between Load and Inverter

d) Separate the AC plug into three parts as below.

- Hold the middle part of the female insert, rotate the back shell to
loose it, and detach it from female inset.

- Remove the cable nut (with rubber insert) from the back shell.

e) Slide the cable nut and then back shell onto the cable.

f ) Insert the tripped end of each three wires into the appropriate hole in
the female insert, and then tight each screw (to tight each wire in
place).(2hexagon wrench .torque:0.8±0.1Nm))

g) Tighten the threaded sleeve.

Connection Steps

a) Check the grid voltage and compare with the permissive voltage range (refer
to technical data).
b) Disconnect the circuit-breaker from all the phases and secure against re­connection.
c) Trip the wires(Choose 8 AWG wire):

- Trip all the wires to 45mm and the PE wire to 47mm.

- Use the crimping pliers to trip 9mm of insulation from Al wire ends as below.

45mm

9mm

20

47mm

h) Screw down the pressure screw.(torque:3±0.3Nm)

I) Connect the AC plug to the inverter.

21

Insta llati on Insta llati on

Selection of Fuses and Cables

Main cable(AC line cable)shall be short circuit protected and thermal overload
protected.
Always fit the input cable with fuse. Normal gG(US:CC or T )fuses will protect the
input cable in short circuit situation. They will also prevent damage to adjoining
equipment.
Dimension the fuses according to local safety regulations, appropriate input
voltage and the related current of the solar inverter.

AC output protected by external fuse(gG rated current 28A/250VAC for 6.0KW ;
32A/250VAC for 7KW;36A/250VAC for 8KW)provides in all live connections to the
AC supply.

The rated short circuit breaking capacity of the above protective device shall be
at least equal to the prospective fault current at the point of installation. See
section technical data of this manual details.

AC output cable: Cu; L, N+PE: 2*5.0mm²+5.0mm² for 6.0KW , 2*5mm²+5mm² for
7KWand 2*8mm²+8mm² for 8KW @40℃ ambient temperature with a max length
of 5m, with operating time of the fuses is less than 5 seconds, installation method
B2 according to EN60204-1:2006, annex D: cable in conduit cable trunking system,
number of loaded circuit only one. Use H07RNF(cord designation 60245 IEC66)
for an ambient temperature of 40℃ or less and use 90℃ wire for ambient
temperature between 40℃ and 60℃.

Note 1: For those different conditions mentioned above, dimension of the cables
according to local safety regulations, appropriate input voltage and the load and
the load current of the unit.(You can choose a thicker cable but the fuses must
rated according to the cable.)

Note 2: Fuses must be approved by Notified Body.

Inverter is not provided galvanic isolation from the mains to the PV array,
feedback current to the array is 0A/250VAC for 6.0KW /7.0KW/8.0KW,based on the
fuse provided in the mains. Also in the worst case the reverse current comprises
the sum of the short-circuit currents of all intact lines.

Therefore the current-carrying capacity of the components and sub-assemblies
provided in the end-use system(connectors, cables, junction box, switch ger, etc.)
and the reverse current PV modules shall be considered based on the feedback
current and reverse current. The direct current(DC) circuit breaker or fuse
between each solar generator and inverter shall be provided based on solar
inverter input ratings.
Select DC cables based in the above inverter back-feed current and ISC PV rating
and Vmax ratings.

Note!

Earth Connection

Ø

2

Screw the ground screw with allen wrench shown as follow. (4hexagon
wrench.torque:1.5±0.2Nm)

5.5.2 Communication interface

This product has a series of communication interfaces: such as WIFI,
RS485/NFI, DRM and USB for upgrading for human and machine
communication. Operating information like output voltage, current,
frequency, faulty information, etc., can be delivered to PC or other
monitoring equipment via these interfaces.

WiFi(optional)

This inverter provides a WiFi port which can collect information from
inverter including status, performance and updating information to
monitoring website via connecting Pocket WiFi( purchase the product from
supplier if needed)

Connection steps:

1.Plug the Pocket WiFi into “ WiFi” port at the bottom of inverter.

2.Connect the wifi with router.

3.Set the station account on the solaX web.(Please check the Pocket WiFi
user manual for more details) (torque:0.6±0.1Nm)

22 23





Insta llati on Insta llati on

②

RS 485/NFI/DRM

a. RS 485

NFI Connection Steps:

Ø

Please see the Quick Guide for NFI Installation for details.

RS 485 is one standard communication interface which can transmit the real
data from inverter to PC or other monitoring equipments.

The PIN denitions of RS 485/NFI interface are as below.

1

8

RS 485 Connection Steps:

Ø

1. Prepare R J45 connector and a communica tion ca ble.

2. Trip the insulation from the communication cable.

3. Let the communication cable pass though the waterproof connector with
RJ45, then insert it into the RJ45 connector following the PIN definition rule.

Han d tight en.t orque :1. 5±0. 1N m

Han d tight en.t orque :1. 2±0. 1N m

4. Crimp the RJ45 connector with the crimping plier.

5. Insert the cable into the RS 485/NFI port of the inverter, and tighten the
waterproof connector.

b. X1-NFI(optional)

X-NFI is integrated with meter, it can control the output and reduce the
power of inverter, to assure the redundant power will not feed into Grid,
X-NFI communication use terminal block on the communication board
in the inverter.
Please refer to the X-NFI user manual for details.

X1 series inverter

PIN

Definition

1 2 3 4 5 6 7 8

3.3V

GND_COM

485_A

X X

485_B

485_A_NFI

485_B_NFI

c. DRM

DRM is provided to support several demand response modes by giving
control signals as below.

1

8

PIN

Definition

Ø

1

DRM1

DRM2

Connection Steps:

3

DRM3

4

DRM4

3.3V

6

Com/DRM0

7 5

GND_COM

8 2

GND_COM

1.Prepare RJ45 connector and a com munic ation c able.

2.Trip the insulation from the communication cable.

3.Let the communication cable pass though the waterproof plug, then insert
it into the RJ45 connector following the PIN definition rule.

4. Crimp the RJ45 connector with the crimping plier.

5.Insert the cable into the DRM port of the inverter, and tighten the
waterproof plug.

Electrical

grid

Electric meter,

bidirectional

NFI

24

Load

25

Insta llati on Insta llati on

Upgrade

User can update the inverter system through a U-disk.

Warning!

Make sure the input voltage is more than 121V (in good illumination
condition), or it may result in failing during updating.

Upgrade

Ø

1) Please contact our service support to get the update file, and extract
it into your U-disk as the following file path:

ARM:
“update\ \618.00117.00_X1_8K_ _Vx.xx_xxxxxxxx.usb”;ARM ARM

DSP:
“update\DSP\618.00119.00_X1_8K_SLAVE_Vx.xx_xxxxxxxx.usb”;
“update\DSP\618.00118.00_X1_8K_MASTER_Vx.xx_xxxxxxxx.usb”.

Note: Vx.xx is version number, xxxxxxxx is file completion date.

Warning!

Make sure the directory is in accordance with above form strictly!
Do not modify the program file name ! Or it may cause the inverter
not work anymore !

2) Make sure the DC switch is off and the AC is disconnected with grid.
Unscrew the waterproof lid of Upgrade port by straight screwdriver as

Straight screwdriver

3) then insert U-disk into the USB port on the bottom of the inverter.
Then turn on DC switch or connect the PV connector, the LCD will show
picture as below.

Update

AR M
DS P

U-disk

4) Press up and down to select the one that you want to update and
press “OK” to confirm to update.

5) After the upgrade is complete, please remember to turn off the DC
switch or disconnect the PV connector, then pull off the U-disk, screw
the waterproof lid.

Warning!

During updating, please don’t turn off the DC switch or
disconnect the PV connector, then reinsert the U-disk if
the updating is stopped.

4

Earth Fault Alarm(Optional)

The earth fault alarm is the additional detection, as required by AS

4777.2 and AS/NZS 5033, it will give an alarm once the earth
impedance of the PV arrays is less than 30KΩ .

26

5 m

m

torque:1.5±0.2Nm

Waterproof lid

5.6 Run the inverter

Start inverter after checking all below steps:

Ø

a. Check that device is xed well o n the wal l.

b. Make sure all the DC breakers and AC breakers are disconnected.
c. AC cable is connected to grid correctly.
d. All PV panels are connected to inverter correctly, DC connectors which
are not used should be sealed by cover.
e. Turn on the external AC and DC connectors.
f. Turn on the DC switch to the “ON”position.

27

Insta llati on Ope ratio n Method

Start inverter

Ø

6. Operation Method

Inverter will start automatically when PV panels generate enough energy.
Check the status of LED indication and LCD screen, the LED indication should
be blue and the LCD screen should display the main interface.

6.1 Control panel

If the LED indication is not blue, please check the below:

- All the connections are right.

- All the external disconnect switches are closed.

- The DC switch of the inverter is in the “ON” position.

Below is the three different status when operating, which means inverter

Ø

starting

Waiting: Inverter is waiting to checking when DC input voltage from panels is
greater than 100V(lowest start-up voltage) but less than 150V(lowest operating
voltage).

A

C

B

E

F

D
H

G

Checking: Inverter will check DC input environment automatically when DC input
voltage from the PV panels exceeds 150V and PV panels have enough energy to
start inverter.

Normal: Inverter begins to operate normally with blue light on. Meanwhile
feedback energy to grid, LCD displays present output power.

Enter the setting interface to follow the instructions when it is rst time to start

Warning!

Power to the unit must be turned on only after installation work
has been completed. All electrical connections must be carried
out by qualied personnel in accordance with legislation in
force in the country concerned.

Object Name Description

Display the information of the inverter.
Blue:The inverter is in normal state.

Yellow:The inverter is in communication.

Red:The inverter is faulty.
ESC button: Return from current interface or function.
Up button: Move cursor to upside or increase value.
Down button: Move cursor to downside or decrease value.
OK button: Conrm the selection.

B

A

C

D

E

F

G

H

LCD Screen

Indicator
LED

Function
Button

Note!

Please set the inverter if it is the first time to start up.
Above steps are for the regular start of the inverter. If it is the first
time to start up the inverter, you need to setup the inverter.

Energy control!

Equipment only to be used for the purpose outlined by SolaX.

2828 29

Ope ratio n MethodOperat ion Met hod

6.2 LCD Function

Menu structure

Grid

Status

Solar

Settings

History

Main Menu

About

Note:
” ”Can be set by the end user.
Others can only be set by the technical or the installer with the installer password.

Password

Inverter Yield

Error Logs

Product SN

Register SN

Machine Tpye

Master DSP1

Slave DSP2

Manager

Safety

Date Time

New Password

Power Factor

P(U) Function

Power Limits

Grid

DRM Function

Reset Energy

Reset Error logs

Start guide

6.3 LCD Operation

● LCD Digital Dis play

The main interface is the default interface, the inverter will automatically
jump to this interface when the system started up successfully or not
operated for a period of time.
The information of the interface is as below. “Power” means the timely
output power; “Pgrid” means the power export to or import from the
grid.“ Today” means the power generated within the day.“Normal”shows
the status of the inverter.

Power

Today 00.0KWh

Normal

0W

● Menu interface

The menu interface is a transfer interface for user to get into other interface
to finish the setting or getting the information.

-User can get into this interface by pressing “OK” button when LCD displays
the main interface.

-User can select interface by moving the cursor with function button，and
press “OK” to confirm.

﹦﹦ ﹦ Menu ﹦﹦ ﹦

Status
Settings
Histor y

● Status

The status function contains two aspects of the inverter, grid and solar.
Press up and down to select and press “OK” to confirm the selection, press
“ESC” to return to Menu.

﹦﹦ ﹦ Status ﹦﹦ ﹦

Grid
Solar

30 31

Ope ratio n MethodOperat ion Met hod

a) Gri d
This status shows the current grid condition such as voltage, current, output
power and the local consumed power. Pout measures the output of the
inverter, Pgrid measures power export to or import from grid. Positive value
means the energy feeds into grid, negative value means the energy used
from the grid.
Press up and down button to review the parameter, press “ESC” to return to
Status .

﹦﹦ ﹦ Grid ﹦ ﹦﹦

U

I 0.0A
Pout 0.0W

b) Solar
This status shows the real time PV condition of the system,
such as input voltage, current and power situation of each P V input.
Press up and down button to review parameter, Press “ESC” to return to Status.

﹦﹦ ﹦ Solar ﹦ ﹦﹦

U1 0.0V
I 1 0.0A
P1 0.0W

0

.0 V

﹦﹦ ﹦ Solar ﹦ ﹦﹦

U2 0.0V
I 2 0.0A
P2 0.0W

Password
The default password is “0000”for end user, which only allows the user to
review the current setting and some easy setting. If professional change is
needed, please contact with the distributor or factory for installer password.
We need to increase or decrease the word by pressing up or down button.
Press OK to confirm an alternate to the next word. After word is confirmed,
press “OK” to enter password.

﹦﹦ ﹦ Pas sword ﹦ ﹦ ﹦

0 0 0 0

a) Safety
The user can set the safety standard here. According to different countries
and grid tied standards. There is 2 standards for choice (May change without
notice).

﹦﹦ ﹦ Safety ﹦ ﹦ ﹦

countr y

AS4777

Item

1

●Settings

Setting function is used for setting the inverter for time, connection, Grid and
so on.
Since this function will change the inverter's parameter, the end user with the
user password as”0000” has the limited authority to change the setting. We
need installer password to do most of the professional setting.
If inputting the installer password, the information of the LCD interface is as
below.

﹦﹦ ﹦ Setting ﹦﹦ ﹦

Safety
Date Time
New Pas sword

32 33

2

Standard

AS 4777

CQC

Country

Australia

China

Ope ratio n MethodOperat ion Met hod

b) Date time
This interface is for user to set the system date and time. Increase or decrease
the word by pressing up or down button. Press OK to confirm and alternate
to next word. After all the words are confirmed. Press “OK” to enter the date
and time.

﹦﹦ ﹦ Date time ﹦ ﹦﹦

2018 -06 -06

c) New Password

10 :19

Installer can set the new password here. We need to increase or decrease the
word by pressing up or down button. Press OK to confirm and alternate to
next word. After word is confirmed., press “OK” to reset the password.

﹦﹦ ﹦New Password ﹦﹦ ﹦

1 2 3 4

d) Power Factor ( For specific country if required by the local grid.)

There are 6 modes for selecting: Off , Under-Excited, Over-Excited, PF(p), Q( u
),Fixed Q Power.

Reactive power control, Reactive standard curve cos φ = f(P)

For VDE ARN 4105, curve cos φ (p) should refer to curve A. default values of setting are as
shown in curve A.
For E 8001, curve cos φ = f(P) should refer to curve B. default values of setting are as shown in
curve B.

cos φ

0.9/0.95*

0.9/0.95*

1

leading

over-excited

under-excited

lagging

0.2

0.5 1.0

curve A

p/p

0.9

Emax

0.9

Upper limit

inductive

0.2

Power Lower

capactive

Lower limit

0.3

curve B

Power Upper

0.7

0.8

f (P)

Reactive power control, Reactive standard curve Q= f(V)

Q

Qmax

V1iV2i

V2s=1.10Vn

V1s=1.08Vn=QuVlowRate

V2i=0.90Vn

V2i=0.92Vn=QuVlowRate

V2sV1s

V

34

Mode Comment

Off

Under-Excited PF value

Over-Excited PF value

PF(p)

Q( u )

Fixed Q Power Q Power

-

Upper limit

Lower limit

Power Upper

Power Lower

QuVupRate

QuVlowRate

-Qmax

35

Ope ratio n MethodOperat ion Met hod

e)P(u) Function
The device is suitable for Australia if the “Enable” is chosen.

﹦﹦ ﹦ ﹦ ﹦ ﹦

P(u) Func tion

>Enable/Disab le

>Enable<

f ) Power limits
User can set the power limit here, the setting value is from 0.00-1.00.

﹦﹦ ﹦Power Lim its ﹦﹦ ﹦

>Prop ort ion

0.00

g) Grid
Usually end user do not need to set the grid parameters. All default value
have been set before leaving factory according to safety rules.
If need to reset, any changes should according to the requirement of local
grid.

﹦﹦ ﹦ Grid ﹦ ﹦ ﹦

>Vac Upper

000.0

Parameter Comment

Normally

Vac upper

Vac lower Voltage low protect

Vac upper slow Voltage high slow protect

Vac lower slow Voltage low slow protect

Fac upper Frequency high protect

Fac lower

Fac upper slow Frequency high slow protect

Fac lower slow Frequency low slow protect

Vac 10m avg 10 min voltage high protect

Voltage high protect

Frequency low protect

h) DRM Function
User can choose whether using the DRM function or not.

l) Reset energy
User can reset the energy record here. Press up or down button to select and
press “OK” to confirm.

﹦﹦ ﹦DR M Fu nction

>Mode Se le ct

Disable

﹦﹦ ﹦R eset Energy ﹦﹦ ﹦

>Reset

﹦﹦ ﹦

No

j) Reset error logs
User can reset the error log here. Press up or down button to select and
press “OK” to confirm.

k) Start guide
This interface makes user set initial setting of the inverter again possible.

﹦﹦ ﹦

Reset Error logs ﹦﹦ ﹦

>Reset

No

﹦﹦ ﹦

Start Guide

>Start

﹦﹦ ﹦

36

37

Troublesh ootin gOpe ratio n Method

● History

The history function contains four aspects of the information: Inverter yield, load
consume, feed in energy and error logs.
Press up and down to select ,and press “OK” to confirm the selection, press
“ESC” to return to Menu.

﹦﹦ ﹦ Histor y ﹦﹦ ﹦

>Inver ter

Yiel d

Error Logs

a) Inverter Yield
The inverter yield function contains energy generated by today, yesterday ,this
month ,last month and total.
Press up and down button to review the parameter, Press “ESC” to return to
history.

﹦﹦ ﹦ Yie ld ﹦﹦ ﹦

>Today :

00.0KWH

d) Error logs
The Error log contains error information happened, It can record for three
items.

7. Troubleshooting

7.1 Trouble shooting

This section contains information and procedures for solving possible
problems with X1 series inverters, and provides you with troubleshooting tips
to identify and solve most problems that could occur with the X1 series
inverters.
This section will help you narrow down the source of any problems you may
encounter. Please read the following troubleshooting steps.
Check warnings or fault messages on System Control Panel or Fault codes on
the inverter information panel. If a message is displayed, record it before
doing anything further.
Attempt the solution indicated in below table.

﹦﹦ ﹦ Error log ﹦ ﹦ ﹦

>

No error

●About

This interface shows information of the inverter, include product SN,register
SN, machine type, master DSP1, slave DSP2 and manager.

﹦﹦ ﹦ About ﹦ ﹦ ﹦

>Product S N
0123456

38 39

Troublesh ootin gTroublesh ootin g

Grid Freq ue nc y out of range

AC10M Volt Fault

AC10Minute overvoltage Fault
System will reconnect if the utility is back to normal.
Or seek help from us.

● If your inverter's information panel is not displaying a Fault light, check the

following list to make sure that the present state of the installation allows
proper operation of the unit.

— Is the inverter located in a clean, dry, adequately ventilated place?
— Have the DC input breakers been opened?
— Are the cables adequately sized and short enough?
— Are the input and output connections and wiring in good condition?
— Are the configurations settings correct for your particular installation?
— Are the display panel and the communications cable properly
connected and undamaged?

Contact Solax Customer Service for further assistance. Please be prepared to
describe details of your system installation and provide model and serial number
of the unit.

40 41

Troublesh ootin g Dec ommis sioni ng

7.2 Routine maintenance

Inverters do not need any maintenance or correction in most condition,but if
the inverter often loses power due to overheating,this can be the following
reason:

● The cooling fins on the rear of house are covered by dirts.

Clean the cooling fins with a soft dry cloth or brush if necessary.
Only trained and authorized professional personnel who are familiar with the
requirements of safety was allowed to perform servicing and maintenance
work.

► Safety checks

Safety checks should be performed at least every 12 months by manufacturer's
qualified person who has adequate training,knowledge,and practical experience
to perform these tests.The data should be recorded in an equipment log.If the
device is not functioning properly or fails any of test,the device has to be
repaired.For safety check details ,refer to this manual,section 2 Safety instruction
and EC Directives.

►Maintain periodically

Only qualified person may perform the following works.
During the process of using the inverter,the manage person shall examine and
maintain the machine regularly.The concrete operations are follow.
1: Check that if the cooling fins on the rear of house are covered by dirts,
and the machine should be cleaned and absorbed dust when necessary.
This work shall be check time to time.
2: Check that if the indicators of the inverter are in normal state,check if the
keys of the inverter are in normal state,check if the display of the inverter is
normal.This check should be performed at least every 6 months.
3: Check that if the input and output wires are damaged or aged.This check
should be performed at least every 6 months.
4: You should get the inverter panels cleaned and their security checked at
least every 6 months.

8. Decommissioning

8.1 Dismantling the Inver ter

Disconnect the inverter from DC Input and AC output.
Wait for 5 minutes for de-energizing.
Disconnect communication and optional connection wirings.
Remove the inverter from the bracket.
Remove the bracket if necessary.

Warning!

Before dismantling the inverter, please be sure to disconnect the
DC switch, and then unplug the PV and AC cables, otherwise it
will lead to an electric shock hazard.

8.2 Packaging

If possible, please pack the inverter with the original packaging.
If it is no longer available, you can also use an equivalent carton that meets
the following requirements.
Suitable for loads more than 30 kg.
With handle.
Can be fully closed.

8.3 Storage and Transportation

Store the inverter in dry place where ambient temperatures are always
between -20 °C - +60 °C.Take care of the inverter during the storage and
transportation,keep less than 4 cartons in one stack.

42

When the inverter or other related components need to be disposed. Have
it carried out according to local waste handling regulations. Please be sure
to deliver wasted inverters and packing materials to certain site, which can
assist relevant department to dispose and recycle.

43