GoodWe SMT 50–60 kW

Compatibility

Confirm the exact SMT variant and read-only point map

The exact-family datasheet specifies SunSpec-compliant Modbus RTU. The public SunSpec discovery and model definitions provide a starting read without a firmware-specific vendor map. Installed bus ownership and returned models still determine the usable interface; no physical Edge test is claimed.

Retain the exact model, region and fitted communications accessory. Use the inverter communications bus for read-only discovery and compare identity and AC power with the local interface. Keep existing meter, logger, export-limiting and protection roles intact.

Models

Specifications

GoodWe’s EMEA September 2025 datasheet covers four exact 50–60 kW SMT names: two base GW50KS/GW60KS-MT models and two -EU versions. Each 50 kW unit has five MPPTs, each 60 kW unit six; all list two strings per tracker, 1100 V maximum DC input and nominal 230/400 V three-phase output.²

Exact EMEA names

GW50KS-MT, GW60KS-MT, GW50KS-MT-EU and GW60KS-MT-EU^2, 3

Nominal AC rating

50 kW or 60 kW; 230/400 V, three phase, subject to country grid code²

PV trackers

Five at 50 kW; six at 60 kW; two strings per MPPT²

DC limits

1100 V maximum input; 200–950 V MPPT range; 30 A maximum per MPPT²

EMEA grid-code groups

Base group excludes UK; -EU group lists G99/G100 and VDE-AR-N 4110 among its codes²

Communications

RS485 and Modbus RTU (SunSpec compliant); base group lists optional 4G, -EU group lists WiFi^2, 3

RS485 connection

European/Indian 5-pin variant: A1/B1 data pairs and separate signal ground; inspect actual terminal³

Enclosure and mass

IP65; 55 kg base models or 56 kg -EU models²

LCD and options

LCD optional; AFCI and PID recovery optional in the EMEA table²

Interface

Documented measurements and integration boundaries for SMT 50–60 kW.

• The EMEA V1.1 sheet separates base and -EU grid-code lists: the base group expressly excludes UK grid code, while the -EU group names G99, G100 and VDE-AR-N 4110. An inverter rating or datasheet code is not a site connection approval.
• The V2.2 manual shows a 5-pin RS485 connector for Europe and India, with A1/B1 pairs for inverters, a smart meter or logger and pin 5 as signal ground, not protective earth. Other connector versions exist in the wider manual; verify the installed terminal before wiring.
• GoodWe shows SEC1000 or EzLogger Pro/EzLogger3000C with a separate smart meter for parallel or export-control arrangements. Inverter AC generation does not itself measure point-of-common-coupling import or export.
• The EMEA technical table lists Modbus RTU as SunSpec compliant. It does not disclose the installed software’s models, register offsets, scaling, unavailable-value rules or simultaneous logger access. Do not import a generic SunSpec map without identification and readback.
• The official product photo shows an LCD face, while the EMEA sheet says LCD is optional for the 50–60 kW units. Use it to identify the housing, not as proof of the ordered display or communication accessory.
• Remote shutdown is a documented European electrical function, not a permission to send inverter or grid-control commands from Edge.

Setup

1. Read the complete SMT nameplate

   Record 50 or 60 kW and whether -EU is printed, then note current software and country grid code. The EMEA base and -EU groups carry different approvals and communications options.

2. Trace the communications terminal

   Identify the actual RS485 connector and logger or smart meter. For the manual’s 5-pin Europe/India version, keep signal ground distinct from protective earth; check bus addressing and termination with the installer.

3. Preserve the site meter and control owner

   Map SEC1000 or EzLogger arrangements, point-of-common-coupling meter and export limitation before adding a reader. Record who owns shutdown and active/reactive-power settings.

4. Discover the published SunSpec models

   On an installer-approved inverter RS-485 bus, use the configured server address and serial settings with one client. FC03 reads two registers at wire addresses 0, 40000 or 50000 to find the SunSpec signature 53 75 6E 53. Read each model header (ID and length), advance by length + 2, and stop at ID 65535. Record the returned model IDs; do not assume model 103 or fixed positions.

5. Prove an identified measurement

   If discovery returns model 103, let H be its header wire address. FC03 at H + 14, quantity 2, reads signed int16 W and W_SF. Power = W × 10^W_SF; 0x8000 means unavailable. Synthetic H = 40070 gives PDU 03 9C 94 00 02; bytes 30 39 FF FF mean 12345 × 10^-1 = 1234.5 W. Compare with GoodWe’s interface. Model 113 or another returned model needs its own definition.

Common questions

Does the SMT 50 kW model have six MPPTs?

No. The EMEA sheet gives five MPPTs to both 50 kW versions and six to both 60 kW versions. All four specify two strings per tracker.²

Can a base GW50KS-MT be used for a UK G99 site?

The EMEA sheet expressly says the base grid-code group is not applicable for UK grid code. Its -EU group names G99 and G100; the installer must still verify the exact certificate and connection approval.²

Does SunSpec compliance establish a ready Edge import?

The datasheet supports a useful SunSpec discovery starting point. Discover the models on the installed inverter bus and use the definition actually returned; the model-103 example below is conditional. A ready-made Edge import, logger northbound API and control writes are separate from that read-only procedure.^{2, 3, 4, 5}

Does SMT output show a building’s net export?

No. A site meter at the point of common coupling is needed to distinguish generation, consumption, import and export. GoodWe’s system examples place a smart meter beside the inverter/logger network.^1, 3

Is the display in the product photo always fitted?

No. The EMEA table treats the LCD as optional for the 50–60 kW models. Confirm the actual unit and communication module.^1, 2