SOLAX POWER X3-MIC Series Mic Solar Power Inverter User Manual

X3-MIC G2 Series
User Manual
3 kW – 15 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.

www.solaxpower.com

Notes on this Manual

1.1 Scope of Validity
This manual is an integral part of X3-MIC G2 Series. It describes the assembly, installation, commissioning, maintenance and fault of the product. Please read it carefully before operating.

Note: “X3” means three-phase. “MIC” is the name of the product series.
“3K” means 3 kW. “G2” means second generation. “LV” means the inveter works in 127 V a.c. /220 V a.c. low voltage range. The products of this series have dual MPPT inputs with DC Switch and with LCD screen.
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.

Safety

2.1 Appropriate Usage
The series inverters 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

Warning!
Over-voltage protection with surge arresters should be provided when the PV power system is installed.
The grid connected inverter is fitted with SPDs in both PV input side and MAINS side.

Lightning will cause a damage either from a direct strike or from surges due to a nearby strike.
Induced surges are the more likely cause of lightning damage in the majority of installations, especially in rural areas where electricity is usually provided by long overhead lines. Surges may be induced on both the PV array conductors or the AC cables leading to the building.
Specialists in lightning protection should be consulted in the actual 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 protection device (SPD type 2) should be fitted at the inverter end of the DC cabling and at the array located between the inverter and the PV generator.
To protect the AC system, surge protection 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 supplies power to the nearby grid when the grid loss happened in the power system. It is dangerous for maintenance personnel and the public. The series inverters provide Active Frequency Drift(AFD) to prevent islanding effect.

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.
● Do not touch the metallic part of the product during operation.
| Caution!
Possible damage to health as a result of the effects of radiation!
● Do not stay closer than 20 cm to the inverter for a long time.
| Note!
Grounding the PV generator.
● Comply with the local requirements for grounding the PV modules and the PV generator. It is recommended to connect 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 the inverter or other losses, which will not be included in warranty!
| Warning!
● Authorized service personnel must disconnect both AC and DC power from the inverter before attempting any maintenance or cleaning or working on any circuits connected to the inverter.
| 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. 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 the inverter which are not mentioned in installation guide. It contains no user-serviceable parts. See Warranty for instructions on obtaining service. Attempting to maintain the inverter by 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 require time to sufficiently discharge!
• Measure the voltage between terminals UDC+ and UDC- with a multimeter (impedance at least 1Mohm) to ensure that the device is discharged before beginning work (35 VDC) inside the device.

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 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.

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 is allowed on the supply side of this product.

For United Kingdom

• The installation that connects the equipment to the supply terminals shall comply with the requirements of BS 7671.
• Electrical installation of PV system shall comply with requirements of BS 7671 and IEC 60364-7-712.
•  No protection settings can be altered.
• User shall ensure that equipment is so installed, designed and operated to maintain at all times compliance with the requirements of ESQCR22(1)(a).

For Australia and New Zealand

• Electrical installation and maintenance shall be conducted by licensed electrician and shall comply with Australia National Wiring Rules.

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.
  | 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.
  | TUV certification.
  | Compliant with UKCA standards.
  | Compliant with UKNI standards.
  | 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.
  | RoHS certificate
  The inverter complies with the requirements of Restriction of Hazardous Substances.

2.4 EC Directives
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.

Introduction

3.1 Basic Features
Thanks for your purchasing with the series inverter. The series inverter is one of the finest inverters on the market today, incorporating state-of-theart 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.

• IP66 protection level.

• Max. efficiency up to 98.3%. EU efficiency up to 97.8%.

• THDi<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.
  – PC remote control.
  – Upgrade through USB interface.
  – WiFi/LAN/4G dongle monitoring.
  – Energy conservation.

3.2 Terminals of the Inverter

Warning!
Only authorized personnel is allowed to set the connection.
3.3 Dimension
Dimension

X3-MIC-4K-G2
X3-MIC-5K-G2
X3-MIC-6K-G2| X3-MIC-5K-G2-LV
X3-MIC-8K-G2
X3-MIC-6K-G2-LV
X3-MIC-8K-G2-LV
X3-MIC-10K-G2
X3-MIC-12K-G2
X3-MIC-15K-G2

Technical Data

4.1 DC Input

Model| X3-MIC-5K-G2-LV| X3-MIC-6K-G2-LV| X3-MIC-8K-G2-LV| X3-MIC-3K-G2| X3-MIC-4K-G2
---|---|---|---|---|---
Max. PV array input power [W]| 10000| 12000| 16000| 6000| 8000
Max. PV input voltage [V]| 800| 800| 800| 1000| 1000
Nominal input voltage [V]| 360| 360| 360| 640| 640
MPPT voltage range [V]| 120-650| 120-650| 120-650| 120-980| 120-980
MPPT voltage range@ full load [V]| 210-550| 260-550| 315-550| 130-800| 170-800
Max. input current (input A/input B) [A]| 16/16| 16/16| 16/16| 16/16| 16/16
Max. short circuit current (input A/input B) [A]| 20/20| 20/20| 20/20| 20/20| 20/20
Startup voltage [V]| 150| 150| 150| 150| 150
No. of MPPT| 2| 2| 2| 2| 2
Strings per MPPT| 1/1| 1/1| 1/1| 1/1| 1/1
Max. MPPT power limit per MPPT [W]| 5000| 6000| 8000| 3000| 4000
DC disconnection switch| Standard
Model| X3-MIC-5K-G2| X3-MIC-6K-G2| X3-MIC-8K-G2| X3 -MIC-10K-G2| X3-MIC-12K-G2| X3-MIC-15K-G2
---|---|---|---|---|---|---
Max. PV array input power [W]| 10000| 12000| 16000| 20000| 24000| 30000
Max. PV input voltage [V]| 1000| 1000| 1000| 1000| 1000| 1000
Nominal input voltage [V]| 640| 640| 640| 640| 640| 640
MPPT voltage range [V]| 120-980| 120-980| 120-980| 120-980| 120-980| 120-980
MPPT voltage range@ full load [V]| 210-800| 260-800| 315-800| 395-800 1| 315-800| 395-800
Max. input current (input A/input B) [A]| 16/16| 16/16| 16/16| 16/16 1| 32/16| 32/16
Max. short circuit current (input A/input B) [A]| 20/20| 20/20| 20/20| 20/20 1| 40/20| 40/20
Startup voltage [V]| 150| 150| 150| 150| 150| 150
No. of MPPT| 2| 2| 2| 2| 2| 2
Strings per MPPT| 1/1| 1/1| 1/1| 1/1 1| 2/1| 2/1
Max. MPPT power limit per MPPT [W]| 5000| 6000| 8000| 8000| PV1: 12000
PV2: 8000| PV1: 12000
PV2: 8000
DC disconnection switch| Standard

“Max. MPPT power limit per MPPT ”means the maximum PV production when using one of the MPPTs only.
1 Input A is optional with two strings (MPPT voltage range@ full load: 300-800 V, Max. input current: 32 A, Max. short circuit current: 40 A, Strings per MPPT: 2/1).

4.2 AC Output

Model| X3-MIC-5K-G2-LV| X3-MIC-6K-G2-LV| X3-MIC-8K-G2-LV| X3-MIC-3K-G2| X3-MIC-4K-G2
---|---|---|---|---|---
Nominal AC output apparent power [VA]| 5000| 6000| 8000| 3000| 4000
Max. AC output apparent power [VA]| 5500| 6600| 8800| 3300| 4400
Nominal AC voltage [V]| 3~/N/PE, 127/220| 3~/N/PE, 220/380, 230/400
Nominal grid frequency [Hz]| 50/60 (±5)
Nominal AC output current [A]| 13.2| 15.8| 21| 4.6/4.4| 6.1/5.8
Max. AC output current [A]| 14.5| 17.4| 23.1| 4.8| 6.4
Inrush current [A]| 27
THDi, rated power [%]| <3%
Displacement power factor| 0.8 leading ~ 0.8 lagging
Feed-in phase| Three-phase
Model| X3-MIC-5K-G2| X3-MIC-6K-G2| X3-MIC-8K-G2| X3 -MIC-10K-G2| X3-MIC-12K-G2| X3-MIC-15K-G2
---|---|---|---|---|---|---
Nominal AC output apparent power [VA]| 5000| 6000| 8000| 10000| 12000| 15000
Max. AC output apparent power [VA]| 5500| 6600| 8800| 11000| 13200| 15000
Nominal AC voltage [V]| 3~/N/PE, 220/380, 230/400
Nominal grid frequency [Hz]| 50/60 (±5)
Nominal AC output current [A]| 7.6/7.3| 9.1/8.7| 12.2/11.6| 15.2/14.5| 18.2/17.4| 22.7/21.8
Max. AC output current [A]| 8.0| 9.6| 12.8| 16.0| 19.1| 22.7
Inrush current [A]| 27
THDi, rated power [%]| <3%
Displacement power factor| 0.8 leading ~ 0.8 lagging
Feed-in phase| Three-phase

4.3 Efficiency, Safety and Protection

Model| X3-MIC-5K-G2-LV| X3-MIC-6K-G2-LV| X3-MIC-8K-G2-LV| X3-MIC-3K-G2| X3-MIC-4K-G2
---|---|---|---|---|---
MPPT efficiency| 99.90%
Euro efficiency| 97.80%
Max. efficiency| 98.30%
Safety & Protection|
Over/under voltage protection| YES
DC isolation protection| YES
Grid monitoring| YES
DC injection monitoring| YES
Back feed current monitoring| YES
Residual current detection| YES
Anti-islanding protection| YES
Over heat protection| YES
SPD protection| YES
Arc-fault circuit interrupter(AFCI)| Optional
AC auxiliary power supply(APS)| Optional
Model| X3-MIC-5K-G2| X3-MIC-6K-G2| X3-MIC-8K-G2| X3 -MIC-10K-G2| X3-MIC-12K-G2| X3-MIC-15K-G2
---|---|---|---|---|---|---
MPPT efficiency| 99.90%
Euro efficiency| 97.80%
Max. efficiency| 98.30%
Safety & Protection|
Over/under voltage protection| YES
DC isolation protection| YES
Grid monitoring| YES
DC injection monitoring| YES
Back feed current monitoring| YES
Residual current detection| YES
Anti-islanding protection| YES
Over heat protection| YES
SPD protection| YES
Arc-fault circuit interrupter(AFCI)| Optional
AC auxiliary power supply(APS)| Optional

4.4 General Data

Model| X3-MIC-5K-G2-LV| X3-MIC-6K-G2-LV| X3-MIC-8K-G2-LV| X3-MIC-3K-G2| X3-MIC-4K-G2
---|---|---|---|---|---
Dimension (W/H/D)[mm]| 342434156| 342434144.5
Dimension of packing (W/H/D)[mm]| 433515247
Net weight [kg]| 17.0| 18.0| 18.0| 15.5| 15.5
Installation| Wall-mounted
Operating temperature range [ ℃ ]| -30~+60 (Derating at 45)
Storage temperature [ ℃ ]| -30~+60
Storage/Operation relative humidity| 0%~100%, condensation
Altitude [m]| 4000 (Derating above 3000)
Ingress protection| IP66
Isolation type| Transformerless
Protective class| Class I
Night-time consumption| <3 W
Over voltage category| III(MAINS), II(PV)
Pollution degree| II(Inside), III(Outside)
Cooling| Fan cooling| Natural cooling
Noise level| <45 dB| <50 dB| <30 dB
Inverter topology| Non-isolated
Communication interface| USB / RS485 / DRM / WiFi/LAN/4G dongle (Optional)
Model| X3-MIC-5K-G2| X3-MIC-6K-G2| X3-MIC-8K-G2| X3 -MIC-10K-G2| X3-MIC-12K-G2| X3-MIC-15K-G2
---|---|---|---|---|---|---
Dimension (W/H/D)[mm]| 342434144.5| 342434156
Dimension of packing (W/H/D)[mm]| 433515247
Net weight [kg]| 15.5| 15.5| 17.0| 17.01| 18.0| 18.0
Installation| Wall-mounted
Operating temperature range [ ℃ ]| -30~+60 (Derating at 45)
Storage temperature [ ℃ ]| -30~+60
Storage/Operation relative humidity| 0%~100%, condensation
Altitude [m]| 4000 (Derating above 3000)
Ingress protection| IP66
Isolation type| Transformerless
Protective class| Class I
Night-time consumption| <3 W
Over voltage category| III(MAINS), II(PV)
Pollution degree| II(Inside), III(Outside)
Cooling| Natural cooling| Fan cooling
Noise level| <30 dB| <45 dB| <50 dB
Inverter topology| Non-isolated
Communication interface| USB / RS485 / DRM / WiFi/LAN/4G dongle (Optional)

1 Input A is optional with two strings (Net weight: 18.0 kg).

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 is shown as below.

2positive, 2negative for 3 kW-8 kW and 10 kW(input A: one string)
3positive, 3negative for 12 kW-15 kW and 10 kW(input A: two strings)

• For the optional accessories, please be subject to the actual delivery.

5.3 Installation Precaution
The series inverter is designed for outdoor installation (IP 66).
Make sure the installation site meets the following conditions:

• Not in direct sunlight.
• Not in areas where highly flammable materials are stored.
• Not in potential explosive areas.
• Not near the television antenna or antenna cable.
• Not higher than the maximum operating altitude of the inverter.
• Not in environment of precipitation or humidity.
• Be sure the ventilation is good enough.
• The ambient temperature in the range of -30℃ to +60℃.
• The slope of the wall should be within ±5°.
• The wall hanging the inverter should meet conditions as 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 avoid direct sunlight, snow laying up during installing and operating.

Available Space Size

Table: Available Space Size

Note!
Please do not install the inverters in parallel connection before confirming with local installer or us. For more details, please contact us.

5.4 Installation Steps
Preparation
Below tools are needed before installation.

Installation tools : crimping plier for binding post and RJ45, wire crimper, stripping plier, φ 10 drill, screwdrivers, manual wrench and allen wrench.

Step 1: Screw the wall bracket on the wall
a) Unscrew the bracket from the back of the inverter. Use it as a template to mark the position of the 3 holes (223 mm*30 mm) on the wall.
b) Drill holes with the drill, make sure the holes are deep enough (at least 60 mm) for installation.
c) Insert the expansion bolts in the holes. Then install the wall bracket by screwing the self tapping screws.

Step 2: Match the inverter with wall bracket
d) Hang the inverter over the bracket, move the inverter close to it, slightly lay down the inverter, and make sure the 2 grooves on the back of the inverter are fixed well with the 2 lugs on the bracket. Screw the cross recessed screw on the right side.

Electrical Connections

6.1 PV Connection
The series inverters have a couple of PV connectors which can be connected in series into 2-inputs 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: Max. DC Voltage Limitation

-MIC-15K-G2**
---|---|---|---|---|---|---|---|---
Max. DC Voltage| 980 V

Danger!
Danger to life due to high voltage 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.
Do not cover the PV modules.

Warning!
The voltage of PV modules is very high and dangerous, please comply with the electric safety rules when connecting.

Warning!
Do not ground the positive or negative pole of the photovoltaic module!

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

Below tools are needed before connection.

|
---|---
Stripping pliers| Wire crimper

Wire crimper recommended model: H4TC0001
manufacturer: Amphenol

a) Choose an appropriate cable (4 mm) to connect the PV module.
b) Strip 7 mm of insulation from the wire end by using the stripping pliers.c) Insert stripped wire into pin contact and ensure all conductor strand are captured in the pin contact.d) Crimp pin contact by using the wire crimper.e) Loosen the cable nut from the DC connector. Then insert the wire with pin contact through the cable nut.
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. Schematic diagram of the inverter PV connected.![SOLAX POWER X3 MIC Series Mic Solar Power Inverter

• Schematic diagram](https://manuals.plus/wp-content/uploads/2023/12/SOLAX- POWER-X3-MIC-Series-Mic-Solar-Power-Inverter-Schematic-diagram.jpg)

6.2 Grid Connection
The series inverters are designed for three phase grid. For the rated grid voltage and frequency, please refer to the section “Technical Data”. Other technical requests should comply with the requirement of the local public grid.

Table: Cable and Micro-breaker recommended

Model| X3-MIC-5K-G2-LV| X3-MIC-6K-G2-LV| X3-MIC-8K-G2-LV| X3-MIC-3K-G2| X3-MIC-4K-G2
---|---|---|---|---|---
L1,L2,L3,N Cable| 5-6 mm²| 5-6 mm²| 5-6 mm²| 4-5 mm²| 4-5 mm²
PE Cable| 2.5-6 mm²| 2.5-6 mm²| 2.5-6 mm²| 2.5-5 mm²| 2.5-5 mm²
Micro-breaker| 32 A| 32 A| 32 A| 16 A| 16 A
Model| X3-MIC-5K-G2| X3-MIC-6K-G2| X3-MIC-8K-G2| X3 -MIC-10K-G2| X3-MIC-12K-G2| X3-MIC-15K-G2
---|---|---|---|---|---|---
L1,L2,L3,N Cable| 4-5 mm²| 5-6 mm²| 5-6 mm²| 5-6 mm²| 5-6 mm²| 5-6 mm²
PE Cable| 2.5-5 mm²| 2.5-6 mm²| 2.5-6 mm²| 2.5-6 mm²| 2.5-6 mm²| 2.5-6 mm²
Micro-breaker| 16 A| 20 A| 32 A| 32 A| 32 A| 32 A

*The parameters have some differences because of different environment and material.
Please choose appropriate cable and micro-breaker according to the local conditions.
Micro-breaker should be installed between inverter and grid, any loads should not be connected with inverter directly.

Incorrect Connection between Loads and Inverter

● 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) Strip the wires:

• Strip all the wires to 52.5 mm and the PE wire to 55 mm.
• Use the stripping pliers to strip 12 mm of insulation from wire ends as below.

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

• Hold the middle part of the male insert, rotate the back shell to loosen it, and detach it from male insert.
• 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 the five wires into the appropriate holes of the male insert (The N wire and PE wire must be connected correctly), and then tighten each screw to tight each wire in place (Use the accompanying inner hexagon spanner).g) Tighten the screw of the back shell and the male insert.h) Tighten the screw of the back shell and the cable nut.i) Align the groove of male terminal with the convex of female terminal, then tighten the bush in male terminal.

Selection of Fuses and Cables Mains 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 16 A/600 VAC for X3 -MIC-3K-G2/X3-MIC-4K-G2/X3-MIC-5K-G2/X3-MIC-6K-G2; 25 A/600 VAC for X3-MIC- 5K-G2-LV/X3-MIC-8K-G2/X3-MIC-10K-G2; 40 A/600 VAC for X3-MIC-6K-G2-LV/X3- MIC- 8K-G2-LV/X3-MIC-12K-G2/X3-MIC-15K-G2) 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; R, 5, T, N+PE: 34.0 mm2-F4.0 mm2 for X3-MIC-3K-G2/X3 -MIC-4K-G2/X3-MIC-5K-G2 and 35.3 mm2+5.3 mm2 for X3-MIC-5K-G2-LV/X3-MIC- 6K-G2/X3-MIC-8K-G2/X3-MIC-10K-G2, 3*6 mm2+6 mm2 for X3-MIC-6K-G2-LV/X3-MIC- 8K-G2-LV/X3-MIC-12K-G2/X3-MIC-15K-G2 @40°C ambient temperature.

Note!

1. For condition differing from those mentioned above, dimension the cables according to local safety regulations, appropriate input voltage and the load current of the unit. (You can choose a thicker cable but the fuses must be rated according to the rating of the cable.)
2. Fuses must be approved by Notified Body.
3. The AC output cable would be better to use the soft wire.

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.

6.3 Earth Connection
Screw the ground screw with the allen wrench shown as follows.

6.4 Communication Connection
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.

6.4.1 Monitoring Connection (Optional)
This inverter provides a monirtoring dongle connecting port (the DONGLE port) which can collect information from inverter including status, performance and updating information to the monitoring website via connecting WiFi/LAN/4G dongle (The  monitoring dongle is optional, which can be purchased from the supplier if needed).

Connection steps(Take WiFi dongle as an example):

1. Plug the WiFi dongle into “DONGLE” port at the bottom of the inverter.
2. Connect the WiFi with router.
3. Download the monitoring APP for setting up.
4. Follow the steps to create a new account, set up internet connections and check the inverter status.
   (For more details of the monitoring configuration, please refer to the WiFi /LAN/4G dongle user manual in the box.)

6.4.2 RS485/Meter Connection
There is an RS485 port on the bottom of the inverter. Through this port, the inverter can 1) communicate with the computer, Datahub or other devices and the meter and achieve the parallel function or EV-Charger function; or 2) achieve multiple functions like DRM (Demand Response Management), dry contact function and heat pump control via Adapter Box.

• 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 port of the inverter, and tighten the waterproof connector.

• PIN Definition: a) The PIN deRS485/Meter interface are as below.

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

c) Heat Pump Controller is the controlling signal provide by the inverter to switch on or off the SG ready heat pump via Adapter Box. The PIN definition is as below:

6.4.2.1 Meter Connection (Optional)
The inverter can communicate with a meter through this interface, with the meter 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.

Note!
The smart meter must be authorized by us, any third party or non-authorized meter may not match with the inverter.
We will not take the responsibility if the unauthorized meter is unavailable.

Meter Connection Steps:
Please see the Quick Installation Guide for three-phase meter for details.

6.4.2.2 Parallel connection
The series inverter provides the parallel connection function when connected with Datahub, which could support at most 60 inverters to parallel in one system and can control zero injection to the grid with a meter installed in the main circuit. In this parallel system, the Datahub will be the master of the system, and all the inverters are the slaves. The Datahub can communicate with all the slave inverters.

Note!
The series inverter cannot work in parallel system without Datahub.

Diagram: Parallel system with Datahub

Note!
Before operation, please make sure that the inverters meet the following conditions:

1. All the inverters are recommended to be the same series;
2. The firmware version of all inverters shall be the same.
   Otherwise, the parallel function cannot be used.

Note!
Before connecting the Datahub to the parallel system, please check that the inverters’ settings meet the following conditions:

1. The “Modbus Fuction” should be “COM485”.
2. The “ParallelSetting” should be “Disable”.
3. The addresses of all the inverters in the “RS485 CommAddr” should be different. Otherwise, please reset the RS485 communication addresses.

● Wiring operation
a) Prepare several RJ45 splitters as needed.
b) Connect on end of an RS485 communication cable with Datahub, and the other end with one of the slave inverters via a splitter.
c) Connect all the slave inverters with each other with RS485 cables via splitters.
d) Connect the meter with the Datahub and the mains.

Note!
The inverter connected with the Datahub should not enable the “ParallelSetting”.
There is no need to set the “ParallelSetting” on the inverters, the parallel system with Datahub will start automatically.

For the details, please refer to the user manual of Datahub.

6.4.2.3 EV-Charger Function
The inverter can communicate with the smart EV-Charger to form an intelligent photovoltaic, storage and EV charging energy system, thus maximizing the utilization of photovoltaic energy.
Diagram: Intelligent Photovoltaic, Storage and EV Charging Energy System

● Wiring operation
a) Prepare an RJ45 splitter and the splitter should be placed in a waterproof place.
b) Connect the communication cables of the EV-Charger, the meter and the inverter via the splitter following the PIN definition rules.
c) The communication cable connected with the inverter should be plugged into the RS485 port of the inverter.

● LCD setting
Turn on the power of the entire system, enter the “Settings” page of the inverters on the LCD screen.
a) Enter the “Export Control” page and choose “Meter”.b) Enter “Modbus Fuction” and select “EV Charger”.c) Set the “Grid Data Source” as “Inverter” in the APP of the EV-Charger.

For the installation and settings of the EV-Charger, please refer to the user manual of the EV-Charger for details.

Note!
The EV-Charger function and the parallel system with Datahub cannot be used at the same time currently.
If the EV-Charger function is enabled and Datahub is connected in the system, please remove the Datahub, then the EV-Charger will work normally. If the Datahub is to be remained in the parallel system, remove the Datahub first and change “EV Charger” to “COM485” under the “Modbus Fuction”, then reconnect the Datahub.

6.4.3 Upgrade
The inverter system can be updated through an U-disk.

Warning!
Make sure the input voltage is more than 140 V (in good illumination condition), or it may result in failing during updating.

Upgrade Steps:

1. Please contact our service support to get the update file, and extract it into your U-disk as the following file path:
   “update\ARM\618.xxxxx.00_XXXXXXXX_ARM_Vx.xx_xxxxxxxx.usb”;
   “update\DSP\618.xxxxx.00_XXXXXXXX_DSPVx.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 to stop working!

2. Make sure the DC switch is off and the AC is disconnected with grid.
   If the WiFi dongle is connected to the port, please remove the WiFi dongle at first.

3. Then insert the U-disk into the DONGLE port on the bottom of the inverter. Then turn on DC switch and connect the PV connector, the LCD will show a picture as below.

4. Press “Up” and “Down” to select ARM or DSP. Then long press “Down”, and select the correct update m the update. ARM and DSP shall be updated one by one.

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, and connect the WiFi dongle back.

Warning!
During updating, don’t turn off the DC switch or disconnect the PV connector. If the updating stopped due to PV power failure, do not unplug the U-disk. When the PV power supply recovers, the update will continue. If the updating stopped due to other reasons, reinsert the U-disk to continue the update.

6.5 Run the inverter
Start inverter after checking all below steps:
a) Check that device is fixed well on the wall.
b) Make sure all the DC breakers and AC breakers are OFF.
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 a cover.
e) Make sure the external AC and DC connectors are connected.
f ) Turn on the DC switch to the “ON” position.

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 indicators 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.

Below is the three different states when operating, which means inverter starting up successfully.

Waiting: Inverter is waiting to checking when DC input voltage from panels is greater than 120 V(lowest start-up voltage) but less than 150 V(lowest operating voltage).
Checking: Inverter will check DC input environment automatically when DC input voltage from the PV panels exceeds 150 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 the start up.

Warning!
Power to the unit must be turned on only after installation work has been completed. All electrical connections must be carried out by qualidance 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 congure the settings for the inverter after start-up.

Operation Method

7.1 Control Panel

blue: The inverter is in waiting status.
C| Light in red: The inverter is in fault status.
D| Function Button| Up/Back button: Move cursor to upside or increase value. Return from current interface or function.
E| Down/Enter button: Move cursor to downside or decrease value. Confirm the selection.

Note:

7.2 LCD Display

• level 1
  a) The first line displays the parameters (Power, Pgrid, Today and Total) and the values.
  b) The second line shows the running status.
  “Power” means the timely output power;
  “Pgrid” means the power export to or import from the grid; (Positive value means the energy feeds into the grid, negative value means the energy used from the grid).
  “Today” means the power generated within the day.
  “Total” means the power generated until now.

• level 2
  Long press any first-level parameter can enter the second-level “Status” parameter interface.
  The user can also see other parameters, such as the “Language”, “Date Time”, “Settings” (need password), “Meter energy”, “Error Logs” of the inverter, and “About” (the user can watch the information of the inverter).

• level 3
  Long press the second-level parameter can enter the corresponding thirdlevel parameter interface.
  a) Status: The user can see the U/I/P parameters of the grid and the PV, such as the “Ugrid”, “Igrid”, “PF value” of the grid, and the “Usolar”, “Isolar” and “Psolar” of the PV.
  b) Language: This inverter provides several languages for the customer to choose.
  c) Date Time: The user can set the date and time of the inverter.
  d) Settings: Entering the installer password, the LCD screen will show the next page of contion parameters.
  (1) Safety: The user can set the right safety standard here.
  (2) Export Control: With this function the inverter can control energy exported to the grid. Whether having this function is based on user’s wishes.
  (3) DRM Function
  (This function is mainly for Australia.): User can choose whether using the DRM function or not.
  ……

Note!
The user should confirm any function setting by long press the “Up” button. If no operation is performed, the LCD screen would return to the home interface within 27 seconds in which case the function isn’t set successfully.

7.3 LCD Function & Operation

LCD Digital Display
The main interface (Level 1) 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 interface shows the following information. “Power” means the timely output power; “Pgrid” means the power export to or import from the grid; (Positive value means the energy feeds into the grid, negative value means the energy used from the grid);  “Today” means the power generated within the day; “Total” means the power generated until now. Press ”Up“ and “Down” to review the information.

Menu interface
The menu interface (Level 2) is a transfer interface for the user to get into other interface to finish the setting or get the information.

• User can get into this interface by long pressing “Down” button when LCD displays the main interface.
• User can select by moving the cursor with function button, and long press “Down” to confirm.

● Status
The status function contains two aspects, the grid and the solar.
Press ”Up“ and “Down” to select and long press “down” to confirm the selection, long press “Up” to return to Menu. a) Grid
This status shows the current condition of the AC output port of the inverter, such as voltage, current, output power and grid power. “Pout” measures the output of the inverter, “Pgrid” measures power export to or import from the grid. Positive value means the power feeds into the grid, negative value means the power used from the grid.
Press ”Up“ and “Down” button to review the parameter, long press “up” to return to Status .
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, long Press “Up” to return to Status.
● Language
The function refers to select a language from English, German, Polish, French, Portuguese etc.
● Date Time
This interface is for the user to set the system date and time. Increase or decrease the word by pressing “Up” or “Down” button. Press “Down” to confirm and alternate to next word. After all the words are confirmed. Long press “Down” to enter the date and time.
● Settings
Setting function is used for setting the inverter for safety, connection, Grid and so on.

• Password
  The default password is “2014” for the installer, which only allows the installer to review and modify necessary settings complying to the local rules and regulations. If further advanced setting is required, please contact the distributor or us for assistance. We need to increase or decrease the word by pressing up or down button. Press “Down” to confirm an alternate to the next word. After word is confirmed, long press “Down” to enter password.

When inputting the password, the information of the LCD interface is shown as below. a) Safety
The user can set the safety standard here according to different countries and grid tied standards. There are several standards for choice (May change without notice). In addition, the user has an “UserDefined” option which allows the user to customize relevant parameters within a wider range.

b) 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 ”Meter” in ”Meter/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 changed by user. The user value set by installer must be less than the factory value and within the range of 0 kW to 30 kW.
Choose ”Disable” means the function will be shut off.
Press ”Up“ and “Down” button to select and long press ”Down” to confirm. c) DRM Function
Installer can choose ”Enable” to control the inverter’s power off through the external communication.

d) Grid Services
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 reset is needed, any changes should be made according to the requirements of local grid.

If reset is needed, any changes should be made according to the requirements of local grid. If reset is needed, any changes should be made according to the requirements of local grid. If set as shown, 9 percent of the rated power increase per minute. If reset is needed, any changes should be made according to the requirements of local grid.

PowerRatio1(2/3/4)
EntryVolt
ExitVolt
Q(u)| Q(u) PowerLockEn
Q(u) LockIn
Q(u) LockOut
Q(u) GridV1/V2/V3/V4
Fix Q Power| Q Power

4-2. Reactive power control, Reactive standard curve cos φ = f(P)
For VDE ARN 4105, curve cos φ = f(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.

Reactive power control, Reactive standard curve Q= f(V) This function can limit the power. There are several values to be set. User can set the power limit here, the setting value is between 0.00 and 1.00.

e) Grid Protection
Usually end user do not need to set the grid Protection. All default value have been set before leaving factory according to safety rules.
If reset is needed, any changes should be made according to the requirements of local grid. f ) New Password
The user can set the new password here. We need to increase or decrease the word by pressing “Up” or “Down” button. Long press “Down” to confirm and alternate to next word. After word is confirmed, long press “Down” to reset the password.

g) RS485 CommAddr
If “ nable” is selected, the inverter will communicate with the computer, through which the operating status of the inverter can be monitored. When multiple inverters are monitored by one computer, RS485 communication addresses of different inverters need to be set. The default address is “1”.

h) ParallelSetting
Make sure this setting is disabled (by default) all the time. (The series inverter does not support parallel connection without Datahub).

i) Mppt Scan Mode
There are four modes to be selected. “Off”, “ LowFreqScan”, “ MidFreqScan High”, “FreqScan”. It shows the frequence of PV panel scan.
If “LowFreqScan” is selected, the inverter will scan the PV panel by low frequence. j) Reset Energy
The user can clear the power energy by this function. k) Reset Meter
The user can clear the meter energy by this function. Press “Up” or “Down” button to select and long press “Down” to confirm. (The user can select “Yes” to reset meter if the user uses meter.)l) Reset Errorlog
The user can clear the errorlogs by this function. Press “Up” or “Down” button to select and long press “Down” to confirm.m) Reset WiFi
The user can restart the WiFi by this function. n) Machine Type
The user can check the Machine Type by this function. o) PV Connection
The user can select the PV connection type by this function. p) Dry Contact
The user can use the Dry Contact to connect SG Ready heat pump by this function via Adapter Box. There are three functions(Disable/Manual/Smart Save) which can be selected for Load Management. “Disable” means the heat pump is off. When “Manual” is selected the user can control the external relay to remain close or open manually.
“Smart Save” mode can set the values of the heat pump’s on/off time and conditions, operating modes.
If the user uses the inverter dry contacts to control heat pump through Adapter box, please refer to the Adapter Box Quick Installation Guide to set the parameters here.

q) Modbus Function
Select “EV Charger” for communication with the EV-Charger, select “COM485” for communication with other devices.

● Meter Energy
The user can check the import and export energy by this function. There are four parameters: “Today Import”, “Total Import”, “Today Export”, “Total Export”. Press “Up” and “Down” to review the values.

● Error Logs
The Error log contains error information happened. It can record six items at most. Press ”Up“ and “Down” button to review parameter. Long press “ Up” to return to the main interface. ● About
This interface shows information of the inverter, include “Product SN”, “Master”, “Manager” and “Internal Code”.

Troubleshooting

8.1 Troubleshooting
This section contains information and procedures for solving possible problems with the series inverters, and provides you with troubleshooting tips to identify and solve most problems that could occur with the 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.

-Wait for about 10 seconds to check if the inverter is back to normal.
-Disconnect the DC switch and restart the inverter.
-Or seek help from us.
Grid Lost Fault| Grid Lost Fault.
-Check if the mains cable is loose.
-Wait for a while and the system will reconnect when the utility is back to normal.
-Or seek help from us.
Grid Volt Fault| Grid Voltage Out of Range.
-Check if the mains cable is loose.
-Wait for a while and the system will reconnect when the utility is back to normal.
-Or seek help from us.
Grid Freq Fault| Grid Frequency Out of Range.
-Wait for a while and the system will reconnect when the utility is back to normal.
-Or seek help from us.
Pv Volt Fault| PV Voltage Fault.
-Check whether the PV is overvoltage.
-Or seek help from us.
Bus Volt Fault| DC Bus Voltage Out of Normal Range.
-Check if the PV input voltage is within the operating range of the inverter.
-Disconnect PV wiring and reconnect.
-Or seek help from us.
Faults| Diagnosis and Solution
---|---
Grid Volt 10 M Fault| Grid Overvoltage for Ten Minutes Fault.
-The system will reconnect when the utility is back to normal.
-Or seek help from us.
Dc In jOCP| DCI Overcurrent Protection Fault.
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
Hard Limit Fault| Hard Limit Fault (in Australian standard).
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
SW OCP Fault| Software Overcurrent Protection Fault.
-Wait for a while to check if the inverter is back to normal.
-Disconnect PV and grid, then reconnect.
-Or seek help from us.
Residual OCP| Overcurrent Protection Fault.
-Check the connections of the inverter.
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
Iso Fault| Isolation Fault.
-Check the connections of the inverter.
-Or seek help from us.
Over Temp Fault| Over Temperature Fault.
-Check if the inverter and the ambient temperature exceeds the operating range.
-Or seek help from us.
Low Temp Fault| Low Temperature Fault.
-Check if the ambient temperature is too low.
-Or seek help from us.
Internal Com Fault| Internal Communication Fault.
-Restart the inverter to check if it is back to normal.
-Update the ARM software or reburn the program.
-Or seek help from us.
Fan Fault| Fan Fault.
-Check whether the fan is faulty or damaged.
-Or seek help from us.
Ac Terminal OTP| AC Terminal Overtemperature Fault.
-Check if the AC terminals are tightly connected.
-Check if the ambient temperature exceeds the operating range.
-Or seek help from us.
Faults| Diagnosis and Solution
---|---
Eeprom Fault| DSP EEPROM Fault.
-Disconnect PV wiring and reconnect.
-Or seek help from us.
Rc Device Fault| Residual Current Device Fault.
-Restart the inverter.
-Update the ARM software or reburn the program.
-Or seek help from us.
Pv Conn Dir Fault| PV Direction Fault.
-Check if the PV+/- sides are connected correctly.
-Or seek help from us.
Grid Relay Fault| Relay Fault.
-Check the grid connection.
-Restart the inverter.
-Or seek help from us.
Other Device Fault| Model Incorrectly Set Fault.
-Seek help from us.
Mgr EEPROM Fault| ARM EEPROM Fault.
-Disconnect PV and grid, then reconnect.
-Or seek help from us.
Meter Fault| Meter Fault.
-Check the connection of the meter.
-Check if the meter is in working order.
-Or seek help from us.
Fan1 Warning| External Fan 1 Abnormal Warning.
-Check if the fan is working.
-Or seek help from us.

Fan2 Warning

| External Fan 2 Abnormal Warning.
-Check if the fan is working.
-Or seek help from us.
Power Type Fault| Power Type Fault.
-Check the version of ARM and DSP.
-Check the product SN number.
-Or seek help from us.

● If the information panel of your inverter does not show the 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 specification and length of the cables suitable?
• Are the input and output connections and wiring in good condition?
• Are the configuration settings correct for your particular installation?

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

8.2 Routine Maintenance
Inverters do not need any maintenance or correction in most cases, but if the inverter often loses power due to overheating, this can be attributed to the following reason:
● The cooling fins on the rear of the inverter are covered by dirt.
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 is 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 personnel 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 as follows.

1. Check that if the cooling fins on the rear of the inverter are covered by dirt, and the machine should be cleaned and absorbed dust when necessary. This work shall be performed from 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. Clean the inverter panels and check their security. This should be carried out at least every 6 months.

Decommissioning

9.1 Dismantling the Inverter

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

Warning!
Only dismantle the inverter after it is powered off for at least 5 minutes, otherwise there is a risk of electric shock!

9.2 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.
• Can be fully closed

9.3 Storage and Transportation
Store the inverter in dry place where ambient temperatures are always between -30°C ~ +60°C. Keep less than 6 cartons in one stack during the storage and transportation.

9.4 Waste Disposal
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 where can assist relevant department to dispose and recycle.

Disclaimer

The inverters shall be transported, used and operated under restricted conditions. We will not provide any service, technical support or compensation in case of the following circumstances, including but not limited to:

• The inverter is damaged by force majeure (such as earthquake, flooding, thunderstorm, lighting, fire hazard, volcanic eruption, etc.);
• The inverter’s warranty is expired, but not extended;
• The inverter’s SN, warranty card or invoice cannot be provided;
• The inverter is damaged by man-made cause;
• The inverter is used or operated against any items in local policy;
• The installation, configuration and commissioning of the inverter doesn’t meet the requirements mentioned in this manual;
• The inverter is installed, refitted or operated in improper ways;
• The inverter is installed, operated under improper environment or electrical condition;
• The inverter is changed, updated or disassembled on hardware or software without authority from us;
• The communication protocol from other illegal channels is used; and
• The monitoring or control system is used without authority from us.

SolaX reserves the right for the final explanation.

Warranty Registration Form

For Customer (Compulsory)
Name ——– Country ——–
Phone Number ——– Email ——–
Address ————————
State ——– Zip Code ——–
Product Serial Number ——–
Date of Commissioning ——–
Installation Company Name ——–
Installer Name ——– Electrician License No. ——–

For Installer

Module ( If Any )
Module Brand —————————————-
Module Size(W) ————————————
Number of String —————— Number of Panel Per String ——————

Battery ( If Any )
Battery Type ——————
Brand ——————
Number of Battery Attached ——————
Date of Delivery —————— Signature ——————

Please visit our warranty website: https://www.solaxcloud.com/#/warranty to complete the online warranty registration or use your mobile phone to scan the QR code to register.
For more detailed warranty terms, please visit SolaX official website: www.solaxpower.com to check it.
614.00002.07

https://www.solaxcloud.com/#/installationGuide

PLEASE REGISTER THE WARRANTY IMMEDIATELY AFTER INSTALLATION!
GET YOUR WARRANTY CERTIFICATE FROM SOLAX!
KEEP YOUR INVERTER ONLINE & WIN SOLAX POINTS!

1. Open your camera app and point your device at the QR code
2. Wait for the camera to recognize the QR code
3. Click banner or notification when it appears on the screen
4. Warranty registration page will be loaded automatically

SolaX Power Network Technology (Zhejiang) Co., Ltd.
ADD.: No. 288, Shizhu Road, Tonglu Economic Development Zone,
Tonglu City, Zhejiang Province, 310000 P. R. CHINA
Tel.: +86 (0) 571-56260011
E-mail: info@solaxpower.com
320101040508

References

• SolaX Power: Solar Inverter, Battery System, EV Charger
• Solax Cloud System

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