SolaX Power X1-Smart Series User manual

320101002404
X1-Smart Series
6.0 kW - 8.0 kW
SolaX Power Network Technology (Zhejiang) Co., Ltd.
Copyright Declaration
The copyright of this manual belongs to SolaX Power Network Technology (Zhejiang) Co.,
Ltd.. Any corporation or individual should not plagiarize, partially or fully copy (including
software, etc.), and no reproduction or distribution of it in any form or by any means shall be
allowed. All rights reserved. SolaX Power Network Technology (Zhejiang) Co., Ltd. reserves the
right of final interpretation.
User Manual
ADD.: No. 288, Shizhu Road, Tonglu Economic Development Zone,
Tonglu City, Zhejiang Province, 310000 P. R. CHINA
Tel.: [phone]
E-mail: [e-mail]

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
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
Contents
01
03
03
03
03
04
04
06
09
10
11
11
11
12
13
13
13
14
14
15
15
15
16
17
18
30
32
32
33
34

1.1 Scope of Validity
This manual is an integral part of X1-Smart 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 6.0 kW.
”T” means “double” MPPT strings.
“D” means with “DC Switch”.
”N” means without “DC Switch”.
Keep this manual at where it is accessible all the time.
1.2 Target Group
This manual is for qualified electricians. The tasks described in this manual can only
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.
1 Notes on this Manual
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
8.4 Waste Disposal
9 Disclaimer
* Warranty Registration Form
Notes on this ManualContents
03
02
43
43
46
47
47
47
47
47
48

2 Safety
2.1 Appropriate Usage
The X1-Smart Series are PV inverters which can convert the DC current of the PV
generator into AC current and feed it into the public grid.
Surge protection devices (SPDs) for PV installation
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.
Warning!
Induced surges are the most likely cause of lightning damage in majority of 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.
Lightning will cause a damage either from a direct strike or from surges due to a
nearby strike.
►
05
04
Safety
DC distribution box AC distribution box
Electrical
grid
Meter
Load
PV array
Surge arrestor
Fuse
DC breaker
Surge arrestor
Fuse
AC breaker
Safety
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-Smart series provide Active Frequency Drift(AFD) to prevent
islanding effect.
Meter communication

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 a long 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-Smart series before attempting any
maintenance or cleaning or working on any circuits connected
to the X1-Smart series.
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-Smart 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 5
minutes 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 5
minutes 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 1 Mohm) to ensure that the device is discharged before
beginning work (35 VDC) inside the device.
Safety Safety
0706
Do not operate the inverter when the device is running.
Warning!
Risk of electric shock!
Warning!

PE Connection and Leakage Current
High leakage current!
Earth connection essential before connecting supply.
Warning!
• 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 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.
0908
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 guidelines.
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.
Safety Safety
• All inverters incorporate a certified internal Residual Current Device(RCD)
inorder to protect against possible electrocution and fire hazard in case of
amalfunction 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 30 mA,and for slow rising current is 300 mA.
• If an external RCD is required by local regulations, it is recommended to
choose a Type-A RCD with the rating residual current of 300 mA.
RoHS certificate
The inverter complies with the requirements of Restriction of
Hazardous Substances.

ON
OFF
PV2 PV1
Upgrade
RS485/Meter/DRM
DONGLE
AC
3. Introduction
3.1 Basic features
Thanks for your purchasing with SolaX X1-Smart Series inverter. The X1-
Smart 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 WiFi monitoring.
- Energy conservation.
3.2 Terminals of inverter
10 11
Safety Introduction
A B C D E
F G H
This section describes the requirements of the European low voltage
regulations, including safety instructions and system licensing conditions, the
user must comply with these regulations when installing, operating, and
maintaining the inverter, otherwise personal injury or death may occur, and
the inverter will be damaged. Please read the manual carefully when
operating the inverter. If you do not understand "Danger", "Warning",
"Caution" and the descriptions in the manual, please contact the
manufacturer or service agent before installing and operating the inverter.
Make sure that the whole system complies with the requirements of
EC(2014/35/EU, 2014/30/EU, etc.) before starting the module (i.e. to start the
operation).
Standard of 2014/35/EU (LVD)
EN IEC 62109-1; EN IEC 62109-2
EN 62477-1
Standard of 2014/30/EU (EMC)
EN IEC 61000-6-1; EN IEC 61000-6-2;
EN IEC 61000-6-3; EN IEC 61000-6-4;
EN IEC 61000-3-2; EN 61000-3-3;
EN IEC 61000-3-11; EN 61000-3-12
EN 55011
The assembly shall be installed in accordance with the statutory wiring rules.
Install and configure the system in accordance with safety rules, including the
use of specified wiring methods. The installation of the system can only be
done by professional assemblers who are familiar with safety requirements
and EMC. The assembler shall ensure that the system complies with the
relevant national laws.
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 4105.
2.4 EC Directives

Warning!
Only authorized personnel is allowed to set the connection.
3.3 Dimension
Ø
Dimension
4. Technical Data
4.1 DC Input
Max. PV array power [Wp]
Max. DC voltage [V]
Nominal DC operating voltage [V]
MPPT voltage range [V]
MPPT voltage range [V](@full load)
Max. input current [A]
Max. short circuit current [A]
Start operating voltage [V]
No. of MPP trackers
Strings per MPP tracker
DC disconnection switch
Max. AC output apparent power [VA]
Nominal grid voltage [V]
Nominal grid frequency/range[Hz]
Object
A DC Switch (optional)
DC Connector
DONGLE for WiFi/LAN/GPRS
AC Connector
B
C
D
E
F
G
Description
Waterproof Valve
12 13
Introduction Technical Data
Model
Model
<3%
0.8 leading... 0.8 lagging
single-phase
Max. inverter backfeed current to
the array [mA]
401 mm
450 mm
190 mm
RS485/Meter(optional)/DRM(optional)
X1-6.0-T-N
X1-6.0-T-D/
550
X1-7.0-T-N
3000/5000
360
100-530
X1-7.0-T-D/
X1-8.0-T-N
3000/6000
550
360
100-530
X1-8.0-T-D/
120
2
120
2
3000/4000
550
360
100-530
14/28
120
2
1/2 1/2 1/2
X1-6.0-T-N
X1-6.0-T-D/
X1-7.0-T-N
X1-7.0-T-D/
X1-8.0-T-N
X1-8.0-T-D/
6000 7000
8000/7700(220V)
6600 7700 8800
220/230/240
50;45-55/60;55-65
28.7 33.5 38.3
USB for Upgrade
HGrounding Screw
THDi, rated power
Displacement power factor, adjustable
Feed-in phase
12/24
4.2 AC Output
optional
200-500 228-500 171-500
26 30
34.7
0
14/28
12/24
14/28
12/24
Nominal AC output apparent
power [VA]
Max. AC output current [A]
Nominal AC output current [A]
(@230 V a.c.)

4.3 Efficiency, Safety and Protection
MPPT efficiency
Euro efficiency
Max. efficiency
Safety & Protection
Over/under voltage protection
DC isolation protection
Grid protection
DC injection monitoring
Back feed current monitoring
Residual current detection
Anti-islanding protection
Over load protection
Over heat protection
Inverter+BMU
99.90%
96.80%
97.40%
4.4 General Data
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
Max. operation altitude [m]
Degree of protection
Protection class
Self-consumption(night) [W]
Overvoltage category
Pollution degree
cooling concept
Typical noise emission [dB]
Inverter topology
Communication interface
YES
YES
YES
YES
YES
YES
YES
YES
YES
450*401*190
560*492*305
22
25
Wall-mounted
-25~+60 (derating at 45)
-25~+60
0%~100%, non condensing
≤2000
IP65
Ⅰ
<1
Ⅲ(MAINS),Ⅱ(PV)
Ⅱ
External: natural wind; Internal: intelligent fan
<40
Non-isolated
RS485/ Meter/CT(optional)/DRM,WIFI /GPRS/LAN/USB
5. Installation
5.1 Check for Transport Damage
5.2 Packing List
Make sure the inverter is intact during transportation. If there are some
visible damages, such as cracks, please contact your dealer immediately.
Open the package and fetch out the product, check the accessories at
first. The packing list is shown as below.
Object
X1-Smart series inverter1A
B
C
D
E
F
G
H
I
J
K
1
6
6
4
4
1
1
1
1
1
Bracket
DC connector (3*positive, 3*negative)
AC connector
Expansion bolt
Self-tapping screw
Earth terminal
User manual
Quick installation guide
Quantity Description
14 15
Technical Data Installation
Model
Model
Meter (Optional)
L
1
Pocket WiFi (Optional)
M
1
DC pin contact (3*positive, 3*negative)
K
99.90%
96.80%
97.40%
99.90%
96.80%
97.40%
X1-6.0-T-N
X1-6.0-T-D/
X1-7.0-T-N
X1-7.0-T-D/
X1-8.0-T-N
X1-8.0-T-D/
X1-6.0-T-N
X1-6.0-T-D/
X1-7.0-T-N
X1-7.0-T-D/
X1-8.0-T-N
X1-8.0-T-D/
ABCDE F
I
GJ
L M
H
RJ45 Plug
Quick Installation Guide
X1-Smart Series 6.0 kW-8.0 kW
Round washer
4
Safety Instructions
1
N
O
N O
X1-S mart S eries
6.0 kW - 8.0 kW
Copyright Declaration
The copyright of this manual belongs to SolaX Power Network Technology (Zhejiang) Co.,
Ltd.. Any corporation or individual should not plagiarize, partially or fully copy (including
software, etc.), and no reproduction or distribution of it in any form or by any means shall be
allowed. All rights reserved. SolaX Power Network Technology (Zhejiang) Co., Ltd. reserves the
right of final interpretation.
User M anual
* For the optional accessories, please be subject to the actual delivery.

5.3 Installation Precaution
Please avoide direct sunlight, rain exposure, snow laying up during installing and
operating.
X1-Smart 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 -25℃ to +60℃.
The slope of the wall should be within ±5°.
5.4 Installation Steps
Step 1: Screw the wall bracket on the wall
Step 2: Match the inverter with wall bracket
Ø
Ø
a) Use the wall bracket as a template to mark the position of the 4 holes
on the wall.
b) Drill holes with φ10 drill, make sure the holes are deep enough (at least
60 mm) for installation, and then insert the expansion bolts in the holes.
c) Tighten the expansion bolts. Then install the wall bracket by using the
self-tapping screws. (torque: 12±0.2 N·m)
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. Screw the cross
recessed screw on the right side.
a) b)
16
Installation Installation
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).
c)
17
d)
Preparation
Ø
Below tools are needed before installation.
Installation tools : crimping pliers for binding post and RJ45, wire crimper,
stripping pliers, φ10 drill, screwdrivers and manual wrench.
Available Space Size
Position Min. size
Ø
Left 30 cm
30 cm
30 cm
30 cm
30 cm
Right
Top
Bottom
Front
Table: Available Space Size
30 cm 30 cm
30 cm
30 cm
Note!
The inverter should not be installed in parallel
combinations.
(torque: 1.5±0.2 N·m)

5.5 Connection of the Inverter
PV String Connection
Ø
X1-Smart series 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 input voltage (table as below) , and operating voltage
should be within the MPPT voltage range.
Table 3 Max. DC Voltage Limitation
Max.DC Voltage
Warning!
PV module voltage is very high which belongs to dangerous
voltage range, please comply with the electric safety rules when
connecting.
Warning!
Please do not make 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.
5.5.1 The Main Steps to Connect to the Inverter
18 19
Installation Installation
Model
Note!
Please choose a suitable external DC switch if the model (X1-6.0-
T-N,X1-7.0-T-N, X1-8.0-T-N) is purchased.
Note!
PV connection mode below is not allowed!
Inverter
PV array
PV1
PV2
+
-
+
-
+
-
+
-
+
-
x
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.
550 V
X1-6.0-T-N
X1-6.0-T-D/
X1-7.0-T-N
X1-7.0-T-D/
X1-8.0-T-N
X1-8.0-T-D/
Below tools are needed before connection.
Stripping pliers Wire crimper
Wire crimper recommended
model: H4TC0001
manufacturer: Amphenol
7.0 mm
4 mm
strip length
d) Crimp pin contact by using the wire crimper.
c) Insert stripped wire into pin contact and ensure all conductor strands are
captured in the pin contact.
pin contact
Crimp these parts
e) Separate the DC connector as two parts: the plug and the cable nut.
Then insert the wire with pin contact through the cable nut.
Wire crimper
plug cable nut
a) Turn off the DC switch, then choose 4 mm wire to connect the PV module.
b) Strip 7 mm of insulation from the wire end by using the stripping pliers.
(recommended model: H4TC0001, manufacturer: Amphenol)
Connection Steps

Connection Steps
Grid Connection
Ø
X1-Smart series inverter are designed for single phase grid. Voltage range is
220/230/240 V, frequency is 50/60 Hz. Other technical requests should comply
with the requirement of the local public grid.
Micro-breaker should be installed between inverter and grid, any loads should
not be connected with inverter directly.
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 re-
connection.
c) Strip the wires (Choose 8 mm wire):
- Strip all the wires to 45 mm and the PE wire to 47 mm.
- Use the stripping pliers to strip 9 mm of insulation from all wire ends as
below.
Table 4 Cable and Micro-breaker recommended
Incorrect Connection between Load and Inverter
L, N Cable
Micro-breaker
d) Separate the AC plug into three parts as below.
- Hold the middle part of the female insert, rotate the back shell to
loosen 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 stripped end of each three wires into the appropriate hole in
the female insert, and then tighten each screw (to tighten each wire in
place).(hexagon wrench. torque: 0.8±0.1 N·m)
g) Tighten the threaded sleeve.
h) Tighten the pressure screw. (torque: 3±0.3 N·m)
i) Align the groove of male terminal with the convex of female terminal,
then tighten the bush in male terminal.
20 21
Installation Installation
Model
8-10 mm
50 A
*The parameters have some differences because of different environment and material. Please
choose appropriate cable and micro-breaker according to the local conditions.
9 mm
X1-6.0-T-N
X1-6.0-T-D/
X1-7.0-T-N
X1-7.0-T-D/
X1-8.0-T-N
X1-8.0-T-D/
8-10 mm
50 A
8-10 mm
50 A
45 mm
47 mm
f ) Insert the wire into plug forcibly, when a "click” is heard or felt the pin contact
assembly is seated correctly. Then tighten the cable nut.
LN
PE
PE Cable 4-10 mm4-10 mm4-10 mm

Main cable(AC line cable) shall be short circuit protected and thermal overload
protected.
Always fit the input cable with fuse. Normal gGs (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 28 A/250 VAC for 6.0 kW;
32 A/250 VAC for 7 kW; 35 A/250 VAC for 8 kW) 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 for details.
AC output cable: Cu; L, N+PE: 2*5.0 mm+5.0 mm for 6.0 kW , 2*5 mm+5 mm for
7 kW and 2*8 mm+8 mm for 8 kW @40 ambient temperature with a max ℃
length of 5 m, 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 conditions differing from those mentioned above, dimension 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 rating of 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 0 A/250 VAC for 6.0 kW/7.0 kW/8.0 kW, 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, switchgear, 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 on the above inverter back-feed current and ISC PV rating
and Vmax ratings.
Selection of Fuses and Cables Note!
Earth Connection
Ø
Screw the ground screw with 4 mm inner hexagonal wrench shown as
follows. (torque:1.5±0.2 N·m)
5.5.2 Communication interface
This product has a series of communication interfaces: such as WiFi,
RS485/Meter, 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 connecting 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 “DONGLE” port at the bottom of the 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±0.1 N·m)
22 23
Installation Installation
If the AC cable you choose is 16 mm or larger, you need
to break the connection between the two rubber rings
which make up the rubber insert as below.

RS485/Meter/DRM
RS485 is one standard communication interface which can transmit the real data
from inverter to PC or other monitoring equipments.
a. RS485
b. Meter (optional)
The PIN denitions of RS485/meter interface are as below.
1
8
RS485 Connection Steps:
1. Prepare RJ45 connector and a communication cable.
2. Strip 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.
4. Crimp the RJ45 connector with the crimping plier.
5. Insert the cable into the “RS485/Meter/DRM” port of the inverter, and
tighten the waterproof connector.
24 25
Installation Installation
Hand tighten.torque:1.2 0.1 N·m±
Hand tighten.torque:1.5 0.1 N·m±
Ø
②
Meter Connection Steps:
Ø
A meter can communicate with the X1-Smart series inverter through this
interface, then you can:
1. Monitor the energy to grid and from grid throughout the whole day.
2. Achieve the export control function with a higher accuracy.
Please see the Quick Installation Guide for single-Phase Meter for details.
Step3. Insert the cable connector into port inside of “RS485/Meter/DRM”
inverter and screw it tightly. Then insert other side of communication
cable into home router or other device.
Step1. Prepare a communication cable (without sheath) and insert the com-
munication cable through the cable connector which can be found
in the accessories package .
Step2. Crimp the communication cable with a RJ45 plug which is inside of
the cable connector.
PIN
Definition
1 2 3 4 5 6 7 8
Meter_A
485_B/
XX
X
XXX
Note!
It is necessary to connect meter to inverter otherwise inverter will
shutdown with a “Meter fault” alert.
The smart meter must be authorized by SolaX, any third party or
non-authorized meter may not match with the inverter.
Solax will not take the responsibility if the meter is unavailable.
Load
X1-Smart series inverter
DC distribution box
AC distribution box
Electrical
grid
Electric meter,
bidirectional SolaX Single Phase Meter
PV array
Surge arrestor
Fuse
DC breaker
Surge arrestor
Fuse
AC breaker
485_A/
Meter_B

Step3
B
C
DRM is provided to support several demand response modes by giving
control signals as below.
1
8
c. DRM
PIN
Definition
1
X
4 7 8
X
5 2
DRM0
3
GND_COM
6
DRM1
RefGen
Connection Steps:
1. Prepare RJ45 connector and a communication cable.
2. Strip 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 “RS485/Meter/DRM” port of the inverter, and
tighten the waterproof plug.
Ø
26
Installation
X X
Step1
communication cable
cable connector
RJ45 plug
CT Connection:
Ø
CT connection diagram
Electrical
grid
Home Electric meter
Load
L
N
L Line
CT
Public Grid
RS485/Meter/DRM port
on the bottom of inverter
The current sensor measures the current on the phase wire that runs between
the inverter and the grid.
Important notice: The arrow on the CT
must point to the public grid side.
CT
When connecting the RJ45 connector with the wire of the CT, please follow the
below definition:
CT PIN Definition
1
8
PIN
Definition
1
CT+
4
X
7
X
5
X
8
CT-
2
X
3
X
6
X
Installation
27
Step2

Upgrade
User can update the inverter system through a U-disk.
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
below.
1) Please contact our service support to get the update file, and extract
it into your U-disk as the following file path:
Make sure the directory is in accordance with above form strictly!
Do not modify the program file name ! Or it may cause the inverter
to stop working!
Make sure the input voltage is more than 121 V (in good illumination
condition), or it may result in failing during updating.
“update\ \618.00319.00_X1_SMART_ _Vx.xx_xxxxxxxx.usb”;ARM ARM
Upgrade Steps:
Note: Vx.xx is version number, xxxxxxxx is file completion date.
Ø
ARM:
DSP:
“update\DSP\618.00318.00_X1_SMART_DSP_Vx.xx_xxxxxxxx.usb”.
Warning!
Warning!
29
Installation
CT Connection Steps:
• Do not place the CT on the N Wire or the earth wire.
• Do not place the CT on the N and L wire simultaneously.
• Do not place the CT with the arrow pointing to the inverter side.
• Do not place the CT on the non-insulated wires.
• Do not use the wire over 25 m long.
NOTE!
RJ45 connector
Screw cap
CT clamp
CT structural decomposition
communication line
1. Insert the RJ45 connector of CT into the “ ” port on the inverter, RS485/Meter/DRM
and screw down the screw cap tightly.
3. Make sure the current sensor is installed in the correct direction: The arrow
on the current sensor must point to the public grid.
2. Clip the CT clamp on L line from the home mains meter box side.
RJ45 connector
Screw cap
RS485/Meter/DRM port on the inverter
CT clamp
L line from the home mains meter box side.
arrow point to the public grid
public grid side inverter side
Step 1
Step 2/3
28
Installation
5 mm
Straight screwdriver
Waterproof lid
torque:1.5 0.2 N·m±

30 31
Installation Installation
Update
ARM
DSP
3) Then insert U-disk into the Upgrade port on the bottom of the
inverter. Then turn on DC switch or connect the PV connector, the LCD
will show a picture as below.
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.
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 30 KΩ .
Earth Fault Alarm(Optional)
5) After the upgrade is completed, please remember to turn off the DC
switch or disconnect the PV connector, then pull off the U-disk, screw
the waterproof lid.
4) Press up and down to select the one that you want to update and
press “OK” to confirm to update.
U-disk
4
Warning!
5.6 Run the inverter
a. Check that device is xed well on the wall.
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.
Start inverter after checking all below steps:
Ø
Start inverter
Inverter will start automatically when PV panels generate enough energy.
Check the status of LED indicators and LCD screen, the LED indicators should be
blue and the LCD screen should display the main interface.
If the LED indication is not blue, please check the below:
- All the connections are correct.
- All the external disconnect switches are closed.
- The DC switch of the inverter is in the “ON” position.
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.
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.
Below is the three different status when operating, which means inverter
starting up successfully.
Waiting: Inverter is waiting to checking when DC input voltage from panels is
greater than 100 V(lowest start-up voltage) but less than 120 V(lowest operating
voltage).
Checking: Inverter will check DC input environment automatically when DC input
voltage from the PV panels exceeds 120 V 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
up.
Ø
Ø
Energy control!
Equipment only to be used for the purpose outlined by SolaX.

6. Operation Method
6.1 Control panel
B
C
D
Object Name Description
F
G
H
E
LED
Indicators
Function
Button
Blue: The inverter is in normal state.
Red: The inverter is faulty.
Yellow: The inverter is in communication.
Down button: Move cursor to downside or decrease value.
ESC button: Return from current interface or function.
OK button: Conrm the selection.
Up button: Move cursor to upside or increase value.
A
LCD Screen Display the information of the inverter.
32 33
Operation Method
Status
Main Menu
Settings
About
Grid
Solar
Register SN
Machine Tpye
Master
Power Factor
Manager
New Password
History
Reset Energy
Power Limits
Grid
6.2 LCD Function
Menu structure
P(U) Function
Safety
Date Time
Reset Error logs
Start guide
Inverter Yield
Error Logs
Password
Note:
” ”Can be set by the end user.
Others can only be set by the technician or the installer with the installer password.
DRM Function
Product SN
Export Control
Reset Meter
Meter Energy
Please refer to the inverter for the most updated structure.
Operation Method

6.3 LCD Operation
ŸLCD Digital Display
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.
ŸMenu 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.
ŸStatus
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.
Power 0W
Today 0.0KWh
Normal
Menu
Status
History
Settings
Status
Grid
Solar
34 35
Operation MethodOperation Method
ŸSettings
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 settings. 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 Password
b) Solar
This status shows the real time PV condition of the system,
such as input voltage, current and power situation of each PV input.
Press up and down button to review parameter. Press “ESC” to return to Status.
Solar
U1 0.0V
I 1 0.0A
P1 0W
Grid
U 0.0 V
I 0.0A
Pout 0W
a) Grid
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.
Solar
U2 0.0V
I 2 0.0A
P2 0W
Pgrid 0W

36 37
Operation MethodOperation Method
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.
Password
0 0 0 0
Safety
country
AS4777
a) Safety
The user can set the safety standard here according to different countries
and grid tied standards. There are 2 standards for choice (May change without
notice).
Item
1
2
Country
CQC China
AS 4777 Australia
Standard
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
10 :19
c) New Password
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
e) 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.All parameters are shown as below.
Mode Comment
Off
Under-Excited PF value
Over-Excited PF value
PF(p)
Upper limit
Lower limit
Power Upper
Power Lower
Q( u ) QuVupRate
QuVlowRate
-
Fixed Q Power Q Power
d) Export control
With this function the inverter can control energy exported to the grid.
Whether having this function is based on user’s wishes.
Choose ”Enable” in ”Enable/Disable” means user must install a meter to
monitor energy exported to the grid. There are user value and factory value.
The factory value is default which can not be charged by user. The user value
setting by installer must be less than the factory value and within the range of
0 kW to 20 kW.
Choose ”Disable” means the function will be shut off.
Press up and down button to select and press ”OK” to confirm.
>Enable/Disable