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General| THD | < 3 % |
|---|---|
| Power Factor at Nominal Power | 1 |
| Operating Temperature Range | -25 °C to +60 °C |
| Protection Category | IP65 |
| Nominal AC Voltage | 230 V |
| AC Voltage Range | 180 V - 280 V |
| Frequency | 50 Hz / 60 Hz |
This document is valid for SMA SOLID-Q 50 & SOLID-Q PRO 60 inverters in China.
This document is intended for qualified persons. Only persons with appropriate skills are allowed to perform the tasks described in this document.
The Modbus interface of the supported SOLID-Q is designed for industrial use, via RS485 or RS422 protocol to enable remote control of the PV system, remote querying of values, and remote parameter setting.
Activities described must only be performed by qualified persons with knowledge of grid management, IP protocols, IT systems, and Modbus specifications.
Assignment tables present information on Decimal Modbus address, description/number code, and data type.
Defines data types (S16, U16, U32, ASCII) and their corresponding NaN values used in the Modbus profile.
Lists measured values and parameters with their Modbus addresses, types, units, gain, and access permissions.
Lists warning codes and their descriptions, such as SPD warning, fan abnormal, and fuse abnormal.
Details error codes and their descriptions, including communication failures, relay check failures, and overvoltage.
Lists grid codes like China CN NB/T 32004 and GB/T 19964 applicable to SOLID-Q models.
Explains setting CosPhi(P) curve points using ADRs to control reactive power based on active power.
Details setting Q(U) curve points using ADRs for reactive power control based on voltage.
Describes adjusting LVRT curve points (T1-3, U1-3) for grid fault ride-through.
Lists available Modbus function codes: Read Holding Register, Read Input Register, Write Holding Single/Multiple Registers.
Details the structure of the Modbus request frame for reading holding registers (Function Code: 0x03).
Details the structure of the Modbus response frame for reading holding registers (Function Code: 0x03).
Details the structure of the Modbus error response for reading holding registers (Function Code: 0x03).
Details the structure of the Modbus request frame for reading input registers (Function Code: 0x04).
Details the structure of the Modbus response frame for reading input registers (Function Code: 0x04).
Details the structure of the Modbus error response for reading input registers (Function Code: 0x04).
Details the structure of the Modbus request frame for writing a single holding register (Function Code: 0x06).
Details the structure of the Modbus response frame for writing a single holding register (Function Code: 0x06).
Details the structure of the Modbus error response for writing a single holding register (Function Code: 0x06).
Details the structure of the Modbus request frame for writing multiple holding registers (Function Code: 0x10).
Details the structure of the Modbus response frame for writing multiple holding registers (Function Code: 0x10).
Details the structure of the Modbus error response for writing multiple holding registers (Function Code: 0x10).
Details the structure of the Modbus request frame for writing multiple holding registers via broadcast (Function Code: 0x10).
Indicates that there is no response for broadcast write operations.
Lists common Modbus exception codes and their meanings, such as illegal function, illegal address, and illegal data.
Provides contact information for technical problems, including the SMA Service Hotline number and company address.
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