1. Prodotto finitoview
The Eastron SDM630Modbus V3 is an advanced multi-function three-phase energy monitoring solution. It is designed for measuring and displaying various electrical parameters in 1-phase 2-wire, 3-phase 3-wire, and 3-phase 4-wire systems. This device is equipped with optional outputs such as pulses and RS485 RTU Modbus communication, making it suitable for integration into PV solar systems and other energy management applications.
It features configuration and display buttons for easy navigation through parameters and settings. The unit is housed for DIN rail mounting and offers IP51 protection. It supports direct connection up to 100A and allows for selectable measurement modes using free configuration software for kWh display, including Total kWh (Import + Export), Import kWh, and Net kWh (Export - Import).

Figura 1: Fronte view of the SDM630Modbus V3
2. Caratteristiche principali
- Max. 100A Direct Load
- 4 Module (72mm wide) DIN rail mounting
- Bi-directional Measurement
- 2 Pulse outputs + RS485 Modbus communication
- Multi-measurement capabilities: kWh, kvarh, W, Var, VA, PF, Hz, dmd, V, A, etc.
- Compatible with 3P4W, 3P3W, and 1P2W systems
- Temperatura operativa: da -25 a +55 gradi Celsius
- Volume nominaletage: 230 V CA
- Accuracy Class: Cl. 1
- Measuring Energy Range: 0-999999.99 kWh
- Tipo di display: LCD
- Protocollo di comunicazione: Modbus RTU
- Pulse Output 1: Configurable
- Pulse Output 2: 400imp/kWh (Passive type)
3. Installazione e configurazione
3.1 Precauzioni di sicurezza
- L'installazione deve essere eseguita solo da personale qualificato.
- Prima dell'installazione o della manutenzione, assicurarsi che tutta l'alimentazione sia scollegata.
- Seguire i codici e le normative elettriche locali.
- Non utilizzare il dispositivo se appare danneggiato.
3.2 Montaggio
The SDM630Modbus V3 is designed for DIN rail mounting. Securely attach the device to a standard 35mm DIN rail within an appropriate enclosure, ensuring adequate ventilation.

Figura 2: lato view illustrating DIN rail mounting
3.3 Schema elettrico
The meter supports 1-phase 2-wire, 3-phase 3-wire, and 3-phase 4-wire connections. Refer to the diagram below for correct wiring. Ensure all connections are tight and secure.

Figure 3: Wiring Diagram and Dimensions. The diagram shows connections for 1-phase 2-wire, 3-phase 3-wire, and 3-phase 4-wire systems. For 3-phase 4-wire, L1, L2, L3, and N are connected to terminals 1, 4, 7, and 10 respectively, with corresponding load connections on terminals 3, 6, 9, and 12. RS485 A and B are connected to terminals 13 and 14. Pulse outputs are on terminals 15 and 16.
Note di cablaggio:
- Potenza in ingresso: Connect the phase and neutral wires according to the diagram for your specific system (1P2W, 3P3W, or 3P4W). The meter supports direct connection up to 100A.
- Comunicazione RS485: Connect the RS485 A and B lines to terminals 13 and 14 respectively for Modbus RTU communication.
- Uscite a impulsi: Pulse output 1 and 2 are available on terminals 15 and 16. These are passive outputs.
4. Funzionamento
The SDM630Modbus V3 features an LCD display and several buttons for navigating and configuring the device.
4.1 Display e pulsanti
The LCD displays various electrical parameters. The buttons (U/I, M, P, E) allow users to cycle through measurements, access menus, and confirm selections.
- Pulsante U/I: Typically used to cycle through voltage (U) and current (I) readings, or other instantaneous parameters.
- Pulsante M: Likely serves as a 'Mode' or 'Menu' button to access different measurement screens or configuration settings.
- Pulsante P: May be used for 'Parameter' selection or 'Pulse' related settings.
- Pulsante E: Generally functions as an 'Enter' or 'Exit' button to confirm selections or leave a menu.
For detailed navigation and configuration, refer to the official datasheet and configuration software manual available on the Eastron websito.
4.2 Modalità di misurazione
The device can measure a wide range of parameters including:
- Active Energy (kWh) - Total, Import, Export, Net
- Reactive Energy (kvarh)
- Potenza attiva (W)
- Reactive Power (Var)
- Potenza apparente (VA)
- Fattore di potenza (PF)
- Frequenza (Hz)
- Voltage(V)
- Corrente (A)
- Demand (dmd)
- E altro ancora.
Specific measurement modes and their display can be configured using the provided software.
5. Manutenzione
The SDM630Modbus V3 is designed for reliable operation with minimal maintenance. However, periodic checks are recommended:
- Pulizia: Mantenere il dispositivo pulito e privo di polvere. Utilizzare un panno morbido e asciutto per la pulizia. Non utilizzare detergenti abrasivi o solventi.
- Connessioni: Periodically inspect all wiring connections to ensure they remain tight and secure. Loose connections can lead to inaccurate readings or device malfunction.
- Ambiente: Per evitare danni, assicurarsi che l'ambiente operativo rimanga entro gli intervalli di temperatura e umidità specificati.
6. Risoluzione Dei Problemi
If you encounter issues with your SDM630Modbus V3, consider the following troubleshooting steps:
- Nessun display/alimentazione:
- Controllare l'alimentazione principale del contatore.
- Verify all power connections are correctly wired and secure.
- Letture imprecise:
- Ensure the wiring configuration matches your electrical system (1P2W, 3P3W, 3P4W).
- Check for loose or incorrect wiring connections.
- Verify that the meter's settings (e.g., CT ratio if applicable, though this model is direct connect up to 100A) are correctly configured.
- Communication Issues (RS485 Modbus):
- Check RS485 A and B connections for correct polarity and secure fit.
- Verify the Modbus address, baud rate, parity, and stop bits settings on both the meter and the master device.
- Ensure the communication cable length does not exceed the maximum recommended distance (1000m).
If problems persist, consult the official datasheet or contact Eastron technical support.
7. Specifiche
Detailed technical specifications for the SDM630Modbus V3 are provided below.

Figura 4: Parametri dettagliati del prodotto
| Parametro | Valore |
|---|---|
| Nome del marchio | Estron |
| Numero di modello | SDM630Modbus V3 |
| Dimensioni | 100*72*66mm |
| Temperatura di esercizio | Da -25 a +55 gradi centigradi |
| Volume di uscitatage | 230V |
| Classe di precisione | Cl. 1 |
| Misurazione dell'intervallo di energia | 0-999999.99kWh |
| Fase | Trifase |
| Corrente massima di esercizio | 100A (Direct Load) |
| Volume nominaletage | 230V |
| Alimentazione elettrica | AC |
| Tipo di visualizzazione | LCD |
| Forniture fai da te | Elettrico |
| Tipo di comunicazione | RS485 |
| Protocollo di comunicazione | Modbus-RTU |
| Uscita impulsiva 1 | Configurabile |
| Uscita impulsiva 2 | 400imp / kWh |
| Tipo di uscita impulsiva | Passivo |
Electrical Characteristics (from image)
| Tipo di misurazione | Precisione |
|---|---|
| Energia | 0.5% della portata massima |
| Energia attiva | IEC 62053-21 Classe 1.0 |
| Energia reattiva | IEC62053-23 Classe 2 |
| Frequenza | 0.2% della media frequenza |
| Attuale | 0.5% della portata massima |
| Voltage | 0.5% della portata massima |
| Fattore di potenza | 1% di unità (0.01) |
Input & Output (from image)
| Parametro | Valore |
|---|---|
| Corrente nominale (Ib/Iref) | 10A |
| Max Current (Imax.) | 100A |
| Min Current (Imin.) | 0.5A |
| Corrente di avviamento | 40mA |
| Volume nominaletage (non) | 230V L-N / 120V L-N |
| Volume operativotage | 80%~120% di Un |
| Produzione | 2 uscite a impulsi + RS485 Modbus |
Ethernet Communication (from image)
| Parametro | Valore |
|---|---|
| Tipo di autobus | RS485 (semi-duplex) |
| Indirizzo di comunicazione | 1~247 |
| Distanza di trasmissione | 1000 m massimo |
| Velocità di trasmissione | 2400 bps ~ 38400 bps |
| Parità | Nessuno (predefinito), Dispari, Pari |
| Stop Bits | 1 |
8. Garanzia e supporto
8.1 Informazioni sulla garanzia
The Eastron SDM630Modbus V3 comes with an 18-month warranty from the date of purchase.
8.2 Supporto tecnico e risorse
- Scheda dati: A detailed datasheet for the SDM630Modbus V3 can be downloaded from the official Eastron websito: www.eastrongroup.com.
- Modbus Protocol Instruction / Register Map: For specific Modbus protocol instructions and register maps, please contact Eastron directly.
- Richieste generali: For any further questions or support, please contact Eastron customer service.

Figura 5: Domande frequenti
9. Suggerimenti per l'utente
- Compatibilità inverter: The SDM630Modbus V3 has been reported by users to be compatible with Deye Inverters. Always verify specific model compatibility with your inverter manufacturer or Eastron support if unsure.
- Configurazione software: Utilize the free configuration software provided by Eastron to customize measurement modes and display settings for optimal performance in your specific application.





