X3-Fit G4 Solax AC Charger Installation Guide

X3-Fit G4 Solax AC Charger
Installation Guide Quick Installation Guide
X3-Fit 6.0KW-15.0KW

Packing List

Note: “ ****” The inverter in Australia needs to be connected to DRM, which is 1 more communication line adapter than that in other countries

Tool Preparation

Mounting Steps

a ) Use a marker to mark drilling holes of the bracket on the wall.| b) Drill holes at marked spots with depth of 65 mm.| c) Insert expansion bolt into the hole, use rubber hammer to knock the expansion screw bolt into the wall.

d ) The bracket is aligned with the screw uses the inner hexagonal wrench to screw the tapping screw until the expansion bolt “bang” is heard.| e) Hang the buckle on the inverter to the corresponding position of the backplane.| f ) Use the inner hexagonal wrench to tighten the inner hexagonal screw on the right side ofthe inverter.

Grid and EPS (Off-grid) Connection

Diagram A: N line and PE line separate wiring; (For most countries) Diagram B: N line and PE line separate wiring; (For most countries)Diagram C: N line and PE line together; ( Applicable to Australia)Diagram D: N line and PE line together; ( Applicable to Australia)Step 1. Prepare a Grid cable (five-core wire) and an EPS (Off-grid) cable (four-core wire), and then find the European terminal and waterproof cover in the accessory bag.

• The Grid and the EPS (Off-grid) ports of the inverter have been connected, for specific installation details, please refer to the X3-Matebox Quick Installation Guide and the W series needs to be wired according to the following steps.
  Note: The RCD on the gure represents a leakage protection device with a circuit breaker function.Grid Cable and Micro-breaker recommended

Model| X3-Fit-6.0-W
X3-Fit-6.0-M| X3-Fit-8.0-W
X3-Fit-8.0-M| X3-Fit-10.0-W
X3-Fit-10.0-M| X3-Fit-15.0-W
X3-Fit-15.0-M
---|---|---|---|---
Cable (copper)| 4~6mm²| 4~6mm²| 5~6mm²| 5~6mm²
Micro-Breaker| 20A| 32A| 40A| 40A

EPS (Off-grid) Cable and Micro-breaker recommended

Model| X3-Fit-6.0-W
X3-Fit-6.0-M| X3-Fit-8.0-W
X3-Fit-8.0-M| X3-Fit-10.0-W
X3-Fit-10.0-M| X3-Fit-15.0-W
X3-Fit-15.0-M
---|---|---|---|---
Cable (copper)| 4~6mm²| 4~6mm²| 4~6mm²| 4~6mm²
Micro-Breaker| 16A| 20A| 25A| 32A

Step 2: First remove the waterproof housing plug, The GRID and EPS (Off-grid) cables go through the corresponding GRID and EPS (Off-grid) ports of the waterproof cover. Remove the 12mm insulation layer at the end of the wire. Insert the European-style terminals respectively, and make sure that the stripped ends are inserted into the European-style terminal, and use crimping pliers to press tightly. And locked in the Grid and EPS (Offgrid) ports respectively. Finally, lock the waterproof cover screw.

Battery Connection

Battery connection diagram: Note:
When using the battery, it is recommended to use the number of battery control (T-BAT-5.8) is 1, the number of battery modules (HV11550) is 1-3; the number of battery control (MC0600) is 1, the number of battery modules (HV10230) is 2-4.
Battery port connection line of the inverter is on the X3-Matebox,for specific installation details, please refer to the X3-Matebox Quick Installation Guide. It is necessary to wire the inverter according to the following steps.
Step 1. Turn off the DC switch, connect the BAT module, prepare a 6 mm BAT cable, and find the BAT (+) terminal and BAT (-) terminal in the package. Step 2. Use a wire stripper to strip the 7 mm insulation layer of the wire end. Step 3. The BAT joint is divided into 2 parts, to the plug and the fastening head. Pass the cable through the fastening head and the alignment plug. Note that the red and black lines correspond to different pairs of plugs. Finally, force the cable into the plug and hear a “click” to indicate that the connection is completed. Step 4. Tighten the fastening head and insert into the corresponding positive and negative (BAT-/BAT+) parts of the inverter. Note: BAT port (Blue one) not PV port(Black one)
Note: The positive and negative wires of the battery are not allowed to be reversed!
Notice!
After the BMS communication between the battery and the inverter is finished, the battery will work normally.

Communication Connection(BMS/Meter/COM/DRM)

Note: Only meters can be used when the inverters work.
Electric meter connection diagramNote: To connect the meter, please connect the GND terminal of the Meter1 to the ground.
LCD settings
To select meter, you need to enter Use setting, then enter CT/Meter Setting. Meter PIN is defined as follows:Note: Only meter connections can be selected. Meter cable goes to pin terminal 4 and 5.
Communication Connection Steps
Step 1. Prepare a communication cable, and then find the communication adapter in the accessory bag.Step 2. Remove the cover plate on the inverter and make the communication line.     Step 3. Insert the communication cable through the communication adapter, and peel off the outer insulation layer of 15 mm. Step 4. Insert the prepared communication cables into the RJ45 terminals in sequence , and then use network cable crimping pliers to press them tightly. The DRM pin is defined as follows:
Note: Currently only PIN6 (DRM0) and PIN1 (DRM1/5) are functional, other PIN functions are under development.
Step 5: Insert the communication line (CAN/DRM/OFF) into the corresponding port, lock the cover plate, and tighten the fastening head .Finally, the corresponding COM, METER and BMS can be found to insert the corresponding ports of the inverter communication cable. Screw waterproof connectors tightly.
COM CommunicationInverter communication control external equipment: COM PIN Definition Note: Customers can communicate or control the inverter and external devices through the COM interface. Professional users can use pins 4 and 5 to realize data acquisition  and external control functions. The communication protocol is Modbus RTU. For details, please contact us.
If the user wants to use the inverter dry contact to control external equipment (such as a heat pump), it can be used with the Adapter Box. For details, please refer to the Quick Installation Manual of the Adapter Box.
The BMS pin is defined as follows: Note: The communication port on the lithium battery must be consistent with the definition of pins 4, 5, 7, and 8 above;

Grounding Connection (manodatory)

*The ground wire port of the inverter has been connected, and the inverter needs to be wired according to the following steps.
Step 1. Prepare a one-core cable (4 mm²), and then find the ground terminal in the accessories. Step 2. Strip the grounding cable insulation (length”L2), insert the stripped cable into the ring terminal, and then clamp it. Step 4. Find the ground connection port on the inverter, and screw the ground wire on the inverter with an M5 Allen key.

Monitoring Operation

DONGLE connection diagram Wireless monitoring accessories connection steps:
*DONGLE port connection line of the inverter is on the X3-Matebox, for specific installation details, please refer to the X3-Matebox Quick Installation Guide.
It is necessary to wire the W series according to the following steps.
Step 1. First find the DONGLE port of the inverter. Step 2. Plug WiFi Dongle into the DONGLE port.
Please check the WiFi Dongle user manual/ LAN Dongle user manual /4G user manual for more details.

Start Guide

5.Export Control
This function allows the inverter able to control energy exported to the grid.
There are user value and factory value. The factory value is default which can not be charged by user. The user value set by installer must be less than the factory value.
6.Set work mode
There are 4 work modes for choice. Self use/ Back Up Mode/ Feed in Priority/ Force Time Use All these work modes is available for on-grid condition only:

and high electricity prices.
① When the power of PV is sufficient
Active Charging or Discharge time period: PV will power the battery. When the battery is fully charged, PV will power the load, and then sell the surplus power to the grid.( The inverter will limit the output if Feed-in limit or zero feed-in is needed) (PV＞Battery charge, PV →Battery→Load → Grid)
② When the power of PV is insufficient
Active Charging time period: PV will power the battery and the remaining power will be taken from the grid when PV is not enough.
PV and grid power will charge the battery until it reaches the set value. And then PV will power the load and the remaining power will be taken from the grid when PV is not enough. The battery will not discharge at this time. (PV＜Battery charge , PV + Grid → Battery)
Active Discharge time period: PV+BAT will power the loads together. If the power is still not enough, the remaining power will be taken from the grid. (PV＜Load, PV + Battery + Grid → Load)
③ Without PV power
Active Charging time period: The grid supplies the loads and also can charge the battery. (PV=0 ,Grid →Load + Battery)
Active Discharge time period: The battery will power the home loads rstly. If the battery power is not enough ,the remaining power will be taken from the grid .The inverter will enter into the standby state.(PV=0 ,Battery+Grid→Load)
Battery min SOC can be set:10%-100%;Charge battery to min SOC can be set:10%-100%.
Feed-in priority| The Feed-in priority mode is suitable for areas with high feed-in subsidies, but has feed-in power limitation.
①When the power of PV is sufficient
Active Charging time period: PV power the battery to the set value, and then power the load, and sell the surplus power to the grid. If the local grid company limits the grid-connected power of the inverter, the excess energy continues to charge the battery. (PV＞Battery, PV→Battery→Load→Grid → Battery)
Active Discharge time period: PV will power the loads rstly, and surplus power will feed-in to the grid.
(PV＜ Load, PV → Load → Grid )
②When the power of PV is insufficient
Active Charging time period:PV will power the battery and the remaining power will be taken from the grid when PV is not enough.
PV and grid power will charge the battery until it reaches the set value. And then PV will power the load and the remaining power will be taken from the grid when PV is not enough. The battery will not discharge. (PV＜ Battery charge, PV + Grid → Battery) Discharge time period: PV+BAT will power the loads together. If the power is still not enough, the remaining power will be taken from the grid. (PV＜ Load, PV + Battery + Grid → Load)
③Without PV power
Active Charging time period :The grid will power the home loads and also charge the battery. (PV=0, Grid → Load + Battery) Active Discharge time period :The battery will power the home loads rstly. If the battery power is not enough, the remaining power will be taken from the grid. The inverter will enter into the standby state.(PV=0 , Battery+Grid → Load) Battery min SOC can be set:10%-100%; Charge battery to min SOC can be set: 30%-100%.
Backup mode| The Back-up mode is suitable for areas with frequent power outages. Same working logic with “Self-use” mode. This mode will maintain the battery capacity at a relatively high level. (Users’ setting) to ensure that the emergency loads can be used when the grid is off. Customers no need to worry about the battery capacity.
Battery min SOC can be set: 30%-100%; Charge battery to min SOC can be set: 30%-100%.
EPS (Off-grid)| The EPS (Off-grid) mode is used when the power grid is off. System will provides emergency power through PV and batteries to supply power to the household loads. (Battery is necessary )
①When the power of PV is sufficient
PV will power the loads rstly, and surplus power will charge to the battery. (PV＞ Load, PV → Load → Battery)
②When the power of PV is insufficient
The remaining power will be taken from the battery. (PV＜Load, PV+battery → Load → Battery)
③Without PV power
The battery will power the emergency loads until the battery reached the min SOC, then the inverter will enter into the
idle mode. (PV=0, Battery → Load) EPS (off-grid) SOC-min condition is adjustable within the range of 10%-25%;

Start Inverter

Start inverter
After the inverter is checked, the inverter will take the following steps:
Applies to most countries

1. Make sure that the inverter is fixed on the wall.
2. Ensure that all ground wires are grounded.
3. Make sure the meter is well connected.
4. Confirm that all AC lines are connected.
5. Make sure the battery is well connected.
6. Turn on the Load switch and EPS(Off-grid) switch
7. Turn on the battery switch.

Note: The RCD on the gure represents a leakage protection device with a circuit breaker function.
Long press Enter for 5 seconds to exit the shutdown mode. Mode is the mode when it is turned off for the first time; factory default: off mode)

Firmware Upgrading

-In order to upgrade the firmware smoothly, if the DSP and ARM firmware needs to be upgraded, please note that ARM firmware must be upgraded first, then DSP firmware!
-Make sure that this directory is completely consistent with the above table, do not modify the firmware file name, otherwise, the inverter may not work!
-For the inverter, ensure that the PV input voltage is greater than180V (upgrade on sunny days). please ensure that the battery SOC is greater than 20% or the battery input voltage is greater than 180V. Otherwise, it may cause serious failure during the upgrade process!
-If the ARM firmware upgrade fails or stops, please do not unplug the U disk and power off the inverter and restart it. Then repeat the upgrade steps.
Upgrade preparation

1. Please check the inverter version and prepare a U disk (USB 2.0/USB3.0) and personal computer before upgrading.
2. Please contact our service support to obtain the firmware, and store the firmware in the U disk according to the following path.
   Update:
   For ARM “update \ARM\618.00406.00_HYB_3P_ARM_V1.13_1220.usb”;
   For DSP “update\DSP\618.00405.00_HYB_3P_DSP_V1.14_1215.usb”;
   Upgrade steps
   Step 1. Please save the “Upate” firmware in your U disk first, and press the “Enter” button on the machine screen for 5 seconds to enter the shutdown mode. Then unscrew the waterproof cover, insert the U disk into the “upgrade” port at the bottom of the inverter.
   Step 2. Find the “Upgrade” port of the inverter, unplug the monitoring module (WiFi Dongle/ 4G Dongle/ LAN Dongle) by hand, and insert the USB e.Step

3. LCD operation, enter the upgrade interface “update”, as shown below(a): Please press the up and down keys to select ARM, then press the bottom of the page to select “OK”, press the enter key to enter the software version interface; Step 4. Please confirm the new firmware version again and select the firmware to upgrade. The upgrade takes about 20 seconds. (d) When it is completed, the LCD screen returns to the “Update” page.

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