Solax X1 Series User manual

320101034607
Solax Power Network Technology(Zhejiang) Co., Ltd.
X1 Series User Manual
3.0kW - 6.0kW
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 it (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 nal interpretation.

Changes between document versions are cumulative. The latest version
contains all updates made in previous versions.
Version 06 (Mar. 20, 2023)
Updated 4 Technical Data (Updated MPPT voltage range@full load )
Updated 3.2 Terminals of the inverter (Add the description of Australian
version DC switch)
Version 05 (Mar. 08, 2023)
Updated 4 Technical Data (Added Ireland safety regulation)
Version 04 (Nov. 09, 2022)
Updated 4 Technical Data (Added technical data)
Updated 5.4 Installation Steps (Added the parallel function)
Version 03 (Oct. 31, 2022)
Updated 4.2 AC Output (Added the safety regulation of Belgium for 4.6KW and
5KW
Version 02 (Dec. 09, 2022)
Updated 2.3 Explanation of Symbols (Modied TUV mark)
Updated 5.4 Installation Steps (Modied screws and tools used in the
installation; Modied CT image)
Version 01 (Feb. 11, 2022)
Updated 4.2 AC Output (Added the safety regulation of Belgium)
Updated 5.4 Installation Steps (Added the upgrade content and modied the
pin denition of DRM)
Version 00 (Dec. 30, 2021)
Initial release
CHANGE HISTORY

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 the 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 Lists
5.3 Installation Precaution
5.4 Installation Steps
5.5 Connections of the Inverter
5.6 Run the Inverter
6 Operation Method
6.1 Control Panel
6.2 LCD Structure
6.3 LCD Operation
Contents
01
03
03
03
03
04
04
06
09
10
10
10
11
14
15
15
15
16
16
17
17
17
18
19
19
34
35
35
36
37

02
7 Troubleshooting
7.1 Troubleshooting
7.2 Routine Maintenance
8 Decommissioning
8.1 Dismantling the Inverter
8.2 Packaging
8.3 Storage and Transportation
8.4 Disposing of the X1-Boost
Contents
43
43
46
47
47
47
47
47
* Warranty registration form
9 Disclaimer 48
10 Commissioning 49
Notes on this Manual
03
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.
Note: “3.0” means 3.0 kW. “T” means “double” MPPT strings.
“D” means with “DC Switch”, “N” means without “DC Switch”.
“L” means with “LCD display”, “X1”: Single Phase, “K” :kW.
X1-4.6K-T-D(L)/X1-4.6K-T-N(L)/X1-5.0K-T-D(L)/X1-5.0K-T-N(L) is for C10/11.
Keep this manual at where is accessible all the time.
1.2 Target Group
This manual is for qualied electricians. The tasks described in this manual only
can be performed by qualied 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.
X1-3.0-T-D(L) X1-3.3-T-D(L) X1-4.2-T-D(L)X1-3.6-T-D(L)
X1-3.0-T-N(L) X1-3.3-T-N(L) X1.3.6-T-N(L) X1-4.2-T-N(L)
X1-4.6K-T-D(L) X1-5.0K-T-D(L) X1-6K-T-D(L) X1-5.5K-T-D(L)
X1-4.6-T-N(L) X1-5.0-T-N(L) X1-5.5K-T-N(L) X1-6K-T-N(L)
X1-4.6K-T-N(L) X1-5.0K-T-N(L)

05
04
Safety
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 tted
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
tted 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. Avoid creating 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 passes through their terminals
typically less than 30 volts.
Anti-Islanding Effect
Islanding effect is a special phenomenon that grid-connected PV system still
supply power to the nearby grid when electrical grid power is no longer present.
It is dangerous for maintenance personnel and the public.
X1 series provide Active Frequency Drift(AFD) to prevent islanding effect.
Safety
2 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.
DC distribution box AC distribution box
Electrical
grid
Electric meter,
bidirectional Our Single Phase Meter Load
PV array
Surge arrestor
Fuse
DC breaker
Surge arrestor
Fuse
AC breaker
* 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 tted with SPDs in MAINS
side.

0706
Safety Safety
2.2 Important Safety Instructions
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. We recommend connecting
the generator frame and other electrically conductive surfaces
in a manner which ensures continuous conduction and grounding
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!
DANGER!
Danger to life due to high voltages in the inverter!
All work must be carried out by qualied 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.
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.
Do not operate the inverter when the device is running.
WARNING!
Risk of electric shock!
WARNING!
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 US. Otherwise may result in
a risk of re, 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.
WARNING!
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 5
minutes before operating the power circuit or demounting the electrolyte
capacitors inside the device. Do not open the device beforehand since the
capacitors require time to suffciently discharge!
Measure the voltage between terminals UDC+ and UDC- with a multi-meter
(impedance at least 1Mohm) to ensure that the device has totally discharged.

0908
Safety Safety
PE Connection and Leakage Current
• The inverter incorporates a certied internal Residual Current Device (RCD)
in order to protect against possible electrocution and re hazard in case of a
malfunction in the cables or the inverter. There are two trip thresholds for the RCD
as required for certication (IEC 62109-2: 2011). The default value for eletrocution
protection is 30 mA, and for slow rising current is 300 mA.
• 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 100 mA unless a lower value is required
by the specic local electric codes.
The device is intended to connect to a PV generator with a capacitance limit of
approx 700nf.
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.
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
The inverter is working normally, when the blue light is on.
An error has occurred, when the red light is on.
Symbols on the Type Label
Symbol Explanation
CE mark.
The inverter complies with the requirements of the
applicable CE guidelines.
RCM remark.
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
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.
TUV certication.
Compliant with UKCA standards.
documentation.

10 11
IntroductionSafety
2.4 EC Directives
3. Introduction
3.1 Basic 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.
IP66 protection level.
Thanks for your purchasing our inverter. The inverter incorporates advanced
technology, high reliability, and convenient control features.
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 description 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 congure the system in accordance with safety rules, including the
use of specied 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.
Object
A DC Switch (optional)
Waterproof Lock Valve
DC Connector
Wi-Fi (optional), LAN/ 4G (optional) dongle,
B
C
D
E
F
G
Description
RS485/ Meter/ CT/ DRM(optional)
AC Connector
Ground screw
Safety &Reliability: transformerless design with software and hardware
protection.
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.
- Remote upgrade and upgrade through USB interface.
- Wi-Fi dongle.
- LAN/ GPRS monitoring/ Wi-Fi Plus/ GPRS(optional) dongle.
3.2 Terminals of the Inverter
WARNING!
Only authorized personnel is allowed to set the connection.
Note: Wi-Fi/ LAN/ 4G dongle share one port E; RS485/ Meter/ DRM share
one port F.
E
FG
A B C GD
- Energy conservation.
Max. efficiency up to 98%.EU efficiency up to 97%.
THD<2%.
UPGRADE

12 13
Introduction
This series of inverters are provided with two kinds of DC switches: general
version (optional; without lock; applied to most countries and regions) and
Australian version (standard; with lock; applied to Australia and New Zealand).
- For Australian version:
The Australian version includes 3 states: ON, OFF, and OFF+Lock. The DC switch is
in the OFF state by default.
ON OFF OFF+Lock
• To turn on the DC switch
i) Turn on the DC switch from OFF state to ON state.
Turn on DC switch (Australian verion)
• To turn off the DC switch
i) Rotate the DC switch from ON state to OFF state.
Turn off DC switch (Australian verion)
• To lock the DC switch
i) Rotate the lock to the left side;
ii) Push the lock upward (as shown in the diagram below).
• To unlock the DC switch
i) Push the lock down (as shown in the diagram below);
ii) Wait for it to return to OFF state.

14 15
Introduction Technical Data
3.3 Dimension
Dimension
341.5mm
430mm
143mm
4. Technical Data
4.1 DC Input
Max. PV voltage[d.c.V]
MPPT voltage range [d.c.V]
MPPT voltage range@full load
[d.c.V]
Max. PV current [d.c.A]
I PV array Short Circuit
SC
Start output voltage [d.c.V]
No. of MPP trackers
Strings per MPP tracker
Model
Max. inverter backfeed current to
the array(mA)
0
DC disconnection switch
4.2 AC Output
Nominal AC voltage and range
Rated AC frequency and
range [Hz]
Rated output current [a.c.A]
Max. output continuous current
220/230/240 (180-280)
50(45-55)/60(55-65)
33
92
<2%
0.8 leading-0.8lagging
Single-phase
III (electric supply side), II (PV side)
Max. output overcurrent
protection[a.c.A]
Model
Rated output apparent power 3000 3300 3680 4200 4600
Current (inrush) [a.c.A]
Total harmonic distortion(THDi)
Power factor range
Feed in phase
Over voltage category
4048
16
3300
13
14.3
3630
14.3
15.8 17.6
Max.apparent AC power[ VA] 4620
18.3
20.1
20
6050
5500
5
6000
5
6
6600
6
5060
6
26.3
7
28.7
7
23.9726.17
22
7
5000
5
5500
6
23.9
7
21.7 7
Max. recommended PV
array power [ W ]
I PV array Short Circuit current means the maximum short circuit current under the standard temperature 25°C.
SC
4500
600
70-580
110-550
14/14
18/18
100
2
1
X1-3.0-T-N(L)
X1-3.0-T-D(L)
X1-3.3-T-N(L)
4950
600
70-580
120-550
14/14
18/18
100
2
1
X1-3.3-T-D(L)
X1-3.6-T-N(L)
5400
600
70-580
138-550
14/14
18/18
100
2
1
X1-3.6-T-D(L)
X1-4.2-T-N(L)
6300
600
70-580
160-550
14/14
18/18
100
2
1
X1-4.2-T-D(L)
X1-4.6-T-N(L)
6900
600
70-580
173-550
14/14
18/18
100
2
1
X1-4.6-T-D(L)
X1-6K-T-N(L)
X1-6K-T-D(L)
9000
600
70-580
230-550
14/14
18/18
100
2
1
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
8250
600
70-580
208-550
14/14
18/18
100
2
1
X1-5.0-T-N(L)
7500
600
70-580
192-550
14/14
18/18
100
2
1
X1-5.0-T-D(L)
Optional
X1-4.6K-T-D(L)
6900
600
70-580
173-550
14/14
18/18
100
2
1
X1-4.6K-T-N(L)
X1-5.0K-T-D(L)
7500
600
70-580
192-550
14/14
18/18
100
2
1
X1-5.0K-T-N(L)
4600
4999
20
4999
21.7
4600
20
21.7
21.7A for AS4777; 20A for VDE4105
4999W for AS4777; 4600W for VDE4105
4999VA for AS4777; 4600VA for VDE4105
X1-3.0-T-N(L)
X1-3.0-T-D(L)
X1-3.3-T-N(L)
X1-3.3-T-D(L)
X1-3.6-T-N(L)
X1-3.6-T-D(L)
X1-4.2-T-N(L)
X1-4.2-T-D(L)
X1-4.6-T-N(L)
X1-4.6-T-D(L)
X1-6K-T-N(L)
X1-6K-T-D(L)
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
X1-5.0-T-N(L)
X1-5.0-T-D(L) X1-4.6K-T-D(L)
X1-4.6K-T-N(L)
X1-5.0K-T-D(L)
X1-5.0K-T-N(L)
2
3 4
316 for TOR and G98
1
3680 for TOR and G98
1
4600 for VDE4105
2
20 for VED4105
4
5
6
7
1
1
Current [d.c.A]
[a.c.V]
[a.c.A]
[VA]
59 (3 ms)
50
Maximum output fault current
Maximum output overcurrent
[a.c.A]
protection [a.c.A]
; 25A for EN50549_Ireland

1617
Technical Data Installation
4.3 Efficiency, Safety and Protection
MPPT effciency
Euro effciency
Max. effciency
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
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
Model
99.90%
97.00%
97.80%
4.4 General Data
Dimension [W/H/D](mm)
Dimension of packing [W/H/D](mm)
Net weight [kg]
Gross weight [kg]
Installation
Operating ambient temperature
Storage temperature [℃]
Storage/Operation relative humidity
Altitude [m]
Ingress Protection
Isolation type
Protective Class
Night-time consumption
Overvoltage Category
Pollution Degree
Cooling
Noise level
Inverter Topology
Communication interface
Standard warranty [year]
430*341.5*143
514*439*233
Wall-mounted
-25~+60 (derating at 45)
-30~+70
0%~100%, condensation
≤3000
IP66
Non-isolated
Ⅰ
<2W
Ⅲ(MAINS),Ⅱ(PV)
Ⅱ
Natural Cooling
30dB
Non-isolated
Wi-Fi (optional), LAN/GPRS(optional) dongle/4G/Meter/CT/RS485/ DRM/ USB
5 years (10 optional)
13.5 13.5 15.0 15.0
16.0 16.0 17.0 17.0
15.0
17.0
13.5
16.0
15.0
17.0
Model
15.0
17.0
5. Installation
5.1 Check for Transport Damage
5.2 Packing Lists
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 rst.
The packing list shows as below.
BCD
G
H
A
F
E
Object
Inverter (with bracket)
1
A
B
C
D
E
F
G
H
4
1
3
/
4
1
Positive PV connector * 2, Negative PV connector * 2
AC connector
Earth terminal
Documents
Quantity Description
Wi-Fi (optional), LAN/GPRS(optional) Dongle
Positive PV pin contact*2; Negative PV pin contact*2
1
(Expansion bolt, Expansion tube; Self-tapping screw)*3
NOTE!
For the optional accessories, please be subject to the actual
delivery.
99.90%
97.00%
97.80%
99.90%
97.00%
97.80%
15.0
17.0
15.0
17.0
X1-3.0-T-N(L)
X1-3.0-T-D(L)
X1-3.3-T-N(L)
X1-3.3-T-D(L)
X1-3.6-T-N(L)
X1-3.6-T-D(L)
X1-4.2-T-N(L)
X1-4.2-T-D(L)
X1-4.6-T-N(L)
X1-4.6-T-D(L)
X1-6K-T-N(L)
X1-6K-T-D(L)
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
X1-5.0-T-N(L)
X1-5.0-T-D(L) X1-4.6K-T-D(L)
X1-4.6K-T-N(L)
X1-5.0K-T-D(L)
X1-5.0K-T-N(L)
X1-3.0-T-N(L)
X1-3.0-T-D(L)
X1-3.3-T-N(L)
X1-3.3-T-D(L)
X1-3.6-T-N(L)
X1-3.6-T-D(L)
X1-4.2-T-N(L)
X1-4.2-T-D(L)
X1-4.6-T-N(L)
X1-4.6-T-D(L)
X1-6K-T-N(L)
X1-6K-T-D(L)
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
X1-5.0-T-N(L)
X1-5.0-T-D(L) X1-4.6K-T-D(L)
X1-4.6K-T-N(L)
X1-5.0K-T-D(L)
X1-5.0K-T-N(L)
range[℃]
Active anti-islanding method
Grid monitoring
Frequency shift
AS/NZS4777.2; VDE4105;EN50549; CEI 0-21;G98,G99

18
Installation Installation
19
5.3 Installation Precaution
Please avoide direct sunlight, rain exposure, snow laying up during installing
and operating.
Available Space Size
X1 Series inverter is designed for outdoor installation (IP 66).
Make sure the installation site meets the following conditions:
Position Min.size
Left 300 mm
300 mm
300 mm
300 mm
300 mm
Right
Top
Bottom
Front
Table Available Space Size
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)
Not be exposed to glare.
Not in areas where highly ammable 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 3000 m above sea level.
Not in environment of precipitation or humidity(100%) .
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°.
The wall hanging the inverter should meet conditions below:
300 mm 300 mm
300 mm
300 mm
5.4 Installation Steps
Preparation
Step 2: Screw the wall bracket on the wall
Step 3: Match the inverter with wall bracket
Below tools are needed before installation.
Installation tools : crimping pliers for binding post, screwdriver, manual
wrench, Φ10 hammer driller and torque wrench.
b) Use the wall bracket as a template to mark the position of the 3
holes on the wall.
c) Drill holes with driller, make sure the holes are deep enough (at
least 60mm) for installation.
d) Install the expansion tubes in the holes, use the torque wrench
to tighten self-tapping screws. Then install the wall bracket by using
e) Hang the inverter over the bracket, move the inverter close to it,
slightly lay down the inverter, and make sure the 2 mounting bars on
the back are xed well with the 2 grooves on the bracket.
Note: Please refer to the details from the Quick Installation Guide.
Step 1: Unscrew the bracket from the back of the inverter.
a) The wall bracket is xed on the inverter, and the user should
remove it rstly. (Phillips screwdriver, Φ10 driller. torque: 0.8±0.1N·m)
5.5 Connections of the Inverter
5.5.1 The Main Steps to Connect to the Inverter
PV String Connection
the expansion screws.
The inverter has 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.

20 21
Installation Installation
7.0 mm
strip length
d) Crimp pin contact by using the wire crimper.
c) Insert striped wire into pin contact and ensure all conductor strand are
captured in the pin contact.
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.
pin contact
Crimp these parts
e) Separate the PV connector as two parts: the plug and the cable nut.
Then insert the wire with pin contact through the cable nut.
Wire crimper
plug
b) Strip 7mm of insulation from the wire end by using the stripping pliers.
( recommended model: H4TC0001, manufacturer: Amphenol)
cable nut
g) Use a multimeter to measure whether the positive and negative
and check whether this PV module is normal.
h) Remove the blue protective cover of the PV +&- interface at the
bottom of the inverter, and insert the completed PV terminals
according to the positive and negative correspondence.
I) Cover the remaining unused PV terminals with the original blue
cover
j) Keep the DC switch of the inverter off (if there is a DC switch)
Table 3 Max. DC Voltage Limitation
Max.DC Voltage 600V
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 ground the PV positive or negative terminals!
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.
Connection Steps
Model
NOTE!
Please choose a suitable external DC switch if the model (X1-3.0-T-
N(L), X1-3.3-T-N(L),X1-3.6-T-N(L),X1-4.2-T-N(L),X1-4.6-T-N(L),X1-
4.6K-T-N(L),X1-5.0-T-N(L),X1-5.0K-T-N(L),X1-5.5K-T-N(L), X1-6K-T-N(L))
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.
Below tools are needed before connection.
Stripping pliers Wire crimper
Wire crimper recommended model :
H4TC0001
manufacturer: Amphenol
a) Turn off the DC switch, then Choose 4mm² wire to connect the PV module.
X1-3.0-T-N(L)
X1-3.0-T-D(L)
X1-3.3-T-N(L)
X1-3.3-T-D(L)
X1-3.6-T-N(L)
X1-3.6-T-D(L)
X1-4.2-T-N(L)
X1-4.2-T-D(L)
X1-4.6-T-N(L)
X1-4.6-T-D(L)
X1-6K-T-N(L)
X1-6K-T-D(L)
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
X1-5.0-T-N(L)
X1-5.0-T-D(L) X1-4.6K-T-D(L)
X1-4.6K-T-N(L)
X1-5.0K-T-D(L)
X1-5.0K-T-N(L)
is purchased.

Installation Installation
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 datach 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 tight each screw (to tight each wire in place).
(Ph1 cross screwdriver. Torque: 0.5±0.1N.m)
g) Screw down the threaded sleeve the pressure screw.
h) Screw down the pressure screw. (torque: 3±0.3N.m)
I) Connect the AC plug to the inverter.
23
Connection Steps
Grid Connection
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:
- Strip all the wires to 52.5mm and the PE wire to 55mm.
- Use the crimping pliers to strip 6mm of insulation from all wire ends as below.
Table 4 Cable and Micro-breaker recommended
Incorrect Connection between Load and Inverter
L,N Cable 4-6 mm²Inverter+BMU
PE Cable
4-6 mm²4-6 mm²5-6 mm²5-6 mm²
22
5-6 mm²5-6 mm²
Model
X1-3.0-T-N(L)X1-3.3-T-N(L)X1-3.6-T-N(L)X1-4.2-T-N(L)X1-4.6K-T-N(L)
X1-3.0-T-D(L)X1-3.3-T-D(L) X1-3.6-T-D(L) X1-4.2-T-D(L)
X1-4.6K-T-D(L)
X1-5.0-T-N(L)
X1-5.0-T-D(L)
Micro-breaker 20 A 20 A 20 A 25 A 25 A 32 A32 A
2.5-6 mm²2.5-6 mm²2.5-6 mm²2.5-6 mm²2.5-6 mm²2.5-6 mm²2.5-6 mm²
X1-5.5K-T-N(L)
X1-5.5K-T-D(L)
5-6 mm²
32 A
2.5-6 mm²
X1-6K-T-N(L)
X1-6K-T-D(L)
NOTE!
Inverters should not be used in multiple phase combinations.
X1 series inverter are designed for single phase grid. Nominal grid voltage is 220/ 230/
240 V,
frequency is 50/ 60 Hz. Other technical requests should comply with the requirement of
the local public grid.
* T h e p a r a me t e r s va r y b e c a u s e o f d i ffe r e n t e nv i r o nm e n t a n d m a t e r i a l .
Please choose appropriate cable and micro-breaker according to the local conditions .
5-6 mm²
X1-4.6-T-N(L)
X1-4.6-T-D(L)
25 A
2.5-6 mm²
5-6 mm²
X1-5.0K-T-N(L)
X1-5.0K-T-D(L)
32 A
2.5-6 mm²

24
Installation Installation
25
NOTE!
Earth Connection
Screw the ground screw with allen wrench shown as follow. (φ4 hexagon
wrench.torque: 1.5±0.2N.m)
WARNING!
Be sure the ground wire must be connected!
5.5.2 Communication interface
This product has a series of communication interfaces: such as
Wi-Fi, RS485/ Meter/ DRM are used for communication and USB is used for
Firmware updating. Operating information like output voltage, current,
frequency, faulty information, etc., can be delivered to PC or other
monitoring equipment via these interfaces.
Wi-Fi
This inverter provides a Wi-Fi port which can collect information from inverter
including status, performance and updating information to monitoring website
via connecting Wi-Fi dongle (optional).
Connection steps:
If the AC cable you choose is 16mm² or larger, you need to
break the connection between the two rubber rings which
make up the rubber insert as below.
1). Insert the Wi-Fi dongle (optional) into "DONGLE" port at the bottom of
inverter.
2). Connect Wi-Fi dongle (optional) with the router (see Wi-Fi Setup Guide
for details).
3). Set power station information on our website.
Selection of Fuses and Cables connection
Mini cable(AC line cable)shall be short circuit protected and thermal overload
protected.
Always t the input cable with fuse. Normal gGs (US: CC or T ) fuses will protect the
input cable in short circuit sistuation. 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 25 A/ 250 VAC for 3.0 KW/ 3.3
KW; 32 A/ 250 VAC for 3.6 KW/ 4.2 KW/ 4.6 KW/ 5.0 KW/ 5.5 KW/ 6.0 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 details.
AC output cable: Cu; L, N,PE: 3*4.0 mmfor 3.0 KW/ 3.3 KW/ 3.6 KW and 3*5 mm for 4.2
KW/ 4.6 KW/ 5.0 KW/ 5.5 KW/ 6.0 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
anambient 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 Notiöed Body.
Inverter is not provided galvanic isolation from the mains to the PV array, feedback
current to the array is 25A/ 250 VAC for 3.0 KW and 3.3 KW; 32A/ 250 VAC for 3.6
KW,4.2 KW, 4.6 KW, 5.0 KW, 5.5 KW and 6.0 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 subassemblies 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 ISCPV rating and Vmax ratings.

Installation Installation
27
RS485 is one standard communication interface which can transmit the realtime data
from inverter to PC or other monitoring equipments.
a. RS485
RS485/Meter/CT/DRM
b. Meter/CT(optional)
The PIN denitions of RS485/Meter interface are as below.
1
8
With this single phase meter working together with the X1 series, you can:
(1) Monitor the energy to grid and from grid through the whole day.
(2) Achieve the export control function with a higher accuracy.
PIN
Denition
1
X
4
Meter_A/
7
E_Stop
5
Meter_B/
8
RefGen
2
Com/DRM0
3
GND_COM
6
X
485_A 485_B
Electrical
grid
Electric meter
bidirectional
Load
X1 series inverter
Single phase meter
Note！
26
It is recommended to connect a Smart meter to inverter. If there is no
smart meter installed, please disable the "Export Control" function in
the inverter setting otherwise the inverter will stop and report a "Meter
fault" alert.
The smart meter must be purchased from and authorized by US, any
third party or non-authorized meter may not match with the inverter.
We will not take the responsibility if the meter is unavailable or
incompatible in this case.
Monitoring
ØParallel system with Modbus Function
In this parallel system, at most 5 inverters can be connected. One inverter will
be set as a master, and the rest are the slaves. The master inverter can
communicate with all the slave inverters.
a) Connect all the inverters in the parallel system with each other via RS485
cables.
b) Connect the communication cable with the master inverter.
ŸWiring operation
ŸSetting
Mode Select
Enable
ParallelSetting
Machine Type
Turn on the power of the entire system, enter setting page of the inverters on the LCD
screen. Follow the instructions below to nish the settings.
To set the master inverter:
a) Enter “ParallelSetting” page, choose “Enable” to activate the function for the inverter.
c. Parallel connection
The series inverter provides the parallel connection function, which could
support several inverters to parallel in one system and can control zero
injection to the grid in the main circuit.
Diagram A: Parallel system with Modbus Function
~
LOAD LOAD
CT
RJ45
Splitter
RJ45
Splitter
Master
Inverter
Slave N
Inverter
4|5
COM COM COM
4|5 4|5
RS485 RS485
CT COMM CABLE
POWER LINE POWER LINE POWER LINE
POWER LINE
Slave 1
Inverter
DC AC DC AC DC AC
GRID
4|5 1|8

Installation Installation
2928
d. CT Connection:
CT connection diagram
Electrical
grid
Home Electric meter
Load
L
N
CT
RS485 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: The arrows direction on the CT
must point to the public grid side.
CT
L line
Public Grid
Inverter
NOTE!
The power limit value set in “Parallel Power” is the limit for the multiple
inverters in the parallel system, while the “UserValue” set in “Export
Control” is the power limit for a single inverter which will be nullied
when the parallel function is enabled.
To set the slave inverters:
a) Enter “Setting” page, and choose “ParallelSetting”.
Mode Select
Enable
ParallelSetting
Machine Type
b) Set the status of “Mode Select” as “Enable”.
c) Enter "M/S Mode" and chose "Slave" to set the Slave inverters.
M/S Mode
Slave
Mode Select
CT
Export Control
DRM Function
b) Make sure the meter/CT is connected to the master inverter. Enter the “Export Control”
page and choose “CT” on the master inverter.
c) Choose “M/S Mode” to select the Master inverter. Only one inverter can be set as “Master”.
M/S Mode
Master
d) Set the value for “Parallel Power” on the master inverter. This will be the overall power limit
for parallel system. The output power of slaves will then be distributed respectively according
to their nominal output power. The value can be set within the range of 0 kW to 30 kW and
the default value is 0 W.
Parallel Power
30000

Installation
31
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 25m.
NOTE!
1. Insert the RJ45 connector of CT into the RS485 port on the inverter, and
screw down the screw cap tightly.
3. Make sure the current sensor is installed in the right direction: The arrow
on the current sensor must point to the public grid.
2. Clip the CT clamp on L line from the home main meter box side.
CT clamp
L line from the home main meter box side.
arrow point to the public grid
public grid side inverter side
Step 2/3
Installation
30
RJ45 connector
Screw cap
CT clamp
CT structural decomposition
communication line
RJ45 connector
Screw cap RS485 port on the inverter
Step 1
RS485 Connection Steps:
1) Firstly unscrew all screws from the RS485 port. (PH1 cross screwdriver .
torque:1.0±0.1N.m)
2) Prepare a communication cable and trip the insulation from it.
3) Let the communication cable pass though the waterproof connector, then
insert it into the connector following the PIN denition rule.
4) Crimp the connector with the crimping plier.
5) Insert the cable into the RS485 port of the inverter, and tighten the
waterproof connector.
DRM function (for AS4777) is provided to support several demand response
modes by giving control signals as below. The user should short circuit
between 2 and 7 and cooperate with external equipment when using it.
1
8
e. DRM
DRM shares the terminal block with RS485/ Meter communications.
The connection steps of the DRM, user can refer to the above (b) RS485
connections.
Note: Only DRM0 is available now, and other functions are being developed.
PIN
Denition
1
X
4
X
7
RefGen
5
X
8
X
2
Com/DRM0
3
GND_COM
6
X
Hand tighten.torque:1.2±0.1N.m
When connectingthe RJ45 connector with the wire of the CT, please follow
the sequence below :
CT PIN Denition
1
8
PIN
Denition
1
CT+
4
X
7
X
5
X
8
CT-
2
X
3
X
6
X

Upgrade
User can update the inverter system through the U-disk.
2) Please insert the U-disk into the "DONGLE" port.
1) Please contact our service to get the latest firmware. Then add a new
folder named "Update" in the root directory on your U-disk, and two more
sub-folders named "ARM" and "DSP" under "Update". Please copy the
rmware les into ARM and DSP respectively. It will be like:
Upgrade Steps:
ARM
DSP
3) Then insert U-disk into the DONGLE port on the bottom of the inverter.
Then turn on DC switch or connect the PV connector, the LCD will show the
main pictures as below.
32
Installation Installation
5) When the upgrade is completed, please remember to turn off the DC
switch and AC switch, then pull off the U-disk.
4) Press up and down to select the one that you want to update and long
press down to conrm.
Update(ARM)
Updating----25%
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
does not work anymore!
WARNING!
3
During updating, please don’t turn off the DC switch or
disconnect the PV connector. If failed, please repeat the above
operation again.
WARNING!
33
•
•
Cancel
OK
Isolation Fault Alarm
4
Make sure the input voltage is more than 100V( in good
illumination condition), or it may result in failing during
updating.
The inverter has the isolation fault alarm function as required by AS 4777.2
and AS/NZS 5033. It will give an visual alarm,you will see that the red light
is ickering and the Isolation Fault will show on the LCD of inverter once
the Insulation impedance of the PV arrays is less than 100 K.
“Update\ARM\618.00207.00_XX_XXXXX_XXXX_XXX_ARM_Vx.xx_xxxxxxxx.usb”;
“Update\DSP\618.00381.00_XX_XXXXX_XXXX_XXX_DSP_Vx.xx_xxxxxxxx.usb”

Installation Operation Method
34
5.6 Run the Inverter
a) Check that device is fixed 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:
Start the 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 right.
- All the external disconnect switches are closed.
- The DC switch of the inverter is in the “ON” position.
The following is the three status when operating, which means inverter starting
up successfully.
Waiting: Inverter is waiting to checking when DC input voltage from panels is
greater than 80 V (lowest start-up voltage) but less than 100 V (lowest operating
voltage).
Checking: Inverter will check DC input environment automatically when DC
input voltage from the PV panels exceeds 100 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.
35
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 a cordance with legislation in
force in the country concerned.
NOTE!
Please set the inverter if it is the rst time to start up.
Above steps are for the regular start of the inverter. If it is the rst
time to start up the inverter, you need to setup the inverter.
ENERGY CONTROL
Equipment only to be used for the purpose outlined by us.
6. Operation Method
6.1 Control panel
B
C
D
Object Name Description
E
Indicator
LED
Function
Button
Light in blue: The inverter is in normal status.
Flash in blue: The inverter is in waiting status.
Up/ESC button:
Light in red: The inverter is in fault status.
Down/Enter button:
A
LCD Screen Display the information of the inverter.
A
C
B D
E
Move cursor to upside or increase value.
Return from current interface or function
Move cursor to downside or decrease value.
Confrm and change the parameters.
LCD
Note: The inverter is in “Waiting” and “Checking” status, the blue light “B” is
ickering; when in “Normal” status, the blue light “B” is always on.