SolaX X3-MEGA G2 40/50/60 kW

Compatibility

Direct Edge integration not yet verified

Protocol V1.1, 16 May 2023, defines input-register reads for this family. The public point map provides a best-effort starting point; compare the first measurements with the inverter display.

Exact X3-MGA-40K/50K/60K-G2 European-voltage models. Use protocol V1.1 as the starting point, installed serial settings, and the OEM Pocket firmware table for TCP. Leave the existing export-control arrangement with its commissioned owner.

Models

Specifications

SolaX's V3.3 sheet covers exactly 40, 50 and 60 kW European-voltage models in this guide. It gives 4, 5 and 6 MPPTs respectively, 32 A maximum input current per MPPT, up to 150% recommended PV array power, IP66 and Type II AC/DC surge protection. Country code and current certificates determine whether a particular installation is approved.²

Covered models

X3-MGA-40K-G2, X3-MGA-50K-G2 and X3-MGA-60K-G2^2, 3

Rated AC output

40, 50 or 60 kVA respectively; 220/380 or 230/400 V, three-phase²

PV tracking

Four, five or six MPPTs respectively; two strings per MPPT²

RS485 inverter network

RS485-1 pins 1/2 A/B in and 4/5 A/B out, or SolaX data collector³

RS485 meter

RS485-2 pins 7/8 A/B meter; site import/export requires correct grid-point installation³

DataHub parallel topology

Up to 60 inverters according to Version 13.0, with uniform firmware and under 200 m RS485 cabling³

Enclosure

IP66, smart air cooling; -25 to +60 °C stated operating range²

Interface

Documented measurements and integration boundaries for X3-MEGA G2 40/50/60 kW.

• The manual's communication connector assigns RS485-1 pins 1/2 as A/B in and 4/5 as A/B out for inverter networking or a data collector. RS485-2 pins 7/8 are the A/B meter connection. These roles are explicit; a meter port should not be described as a spare northbound monitoring port.
• SolaX documents a DataHub parallel design of up to 60 inverters and a separate Modbus inverter-master design of up to 10. The manual requires the same firmware on all parallel inverters and says the RS485 cable must be less than 200 m for the DataHub arrangement. These are plant-control design conditions, not an Edge fleet capacity claim.
• FC04 exposes phase voltage, frequency, active power, daily/total energy and operating state using typed input registers.
• The datasheet advertises built-in export power control, remote setting and night-time reactive-power compensation. Those functions depend on a correctly installed grid-point meter, utility approval and a commissioned control owner. A protocol or DI/DO terminal does not authorise external writes.
• For RTU, the specific serial-settings table gives 9600 baud, 8 data bits, no parity and one stop bit. Use the installed settings and one bus master. The OEM TCP article lists X3-FORTH ARM V015.01 and X3-MEGA G2 ARM V008.02 with supported Pocket dongles; read on the same protected LAN using the dongle's assigned IP.

Setup

1. Identify the European-voltage model

   Record the full X3-MGA-40K/50K/60K-G2 code, country code, firmware, grid approval and exact installed meter. The same manual also covers low-voltage variants that are outside this guide.

2. Map the existing plant control design

   Trace whether the site uses a SolaX DataHub, Modbus inverter master or individual Pocket monitoring dongles. Do not add a second master or change addresses on an operating export-control bus.

3. Keep inverter and meter terminals distinct

   Verify the installed connector before using RS485-1 pins 1/2 and 4/5 for the inverter network or RS485-2 pins 7/8 for the meter. Record termination, baud and existing addresses with the installer.

4. Read voltage and frequency

   Use FC04 at PDU address 0x0103 (259), one register, for phase-A voltage: request 04 01 03 00 01; U16 raw 0x08FC gives 230 V with multiplier 0.1. Frequency at 0x0106 (262) is U16 with multiplier 0.01 Hz: request 04 01 06 00 01; raw 0x1388 gives 50 Hz. The table addresses are hexadecimal, not decimal strings. Compare both readings with the local display before extending the map.

5. Review flexibility and export separately

   Verify the connection-point meter sign, CT orientation and controls owner. Keep export limits, reactive settings and utility dispatch on the approved controller until a separate safe control design is accepted.

6. Add power, energy and operating state

   Active power at 0x0183 (387) is two-register S32 in W. The document does not explicitly specify its 32-bit word order; compare both word orders with the display before storing that decoder. Daily energy at 0x0189 (393) is U16 × 0.1 kWh, total energy at 0x018A (394) is U32 × 0.1 kWh, and operating state at 0x0200 (512) is U16. Reserved rows are not measurements.

Common questions

Are the meter and data-collector connections the same RS485 port?

No. The Version 13.0 terminal table assigns RS485-1 pins 1/2 and 4/5 to the inverter network or data collector, while RS485-2 pins 7/8 connect the meter. Preserve the commissioned wiring and verify the installed connector.³

Does a Pocket LAN dongle provide direct Modbus TCP for Edge?

For RTU, the specific serial-settings table gives 9600 baud, 8 data bits, no parity and one stop bit. Use the installed settings and one bus master. The OEM TCP article lists X3-FORTH ARM V015.01 and X3-MEGA G2 ARM V008.02 with supported Pocket dongles; read on the same protected LAN using the dongle's assigned IP.^4, 5

Can the inverter's remote setting be used for VPP dispatch?

A datasheet capability does not grant third-party control rights. Export or reactive-power commands need the utility-approved grid-point measurement, site controller, permissions, fail-safe behaviour and separately reviewed commissioning plan.^2, 3