Eastron SDM230-Modbus Anti-Reverse Flow AC Energy Meter

1. ഉൽപ്പന്നം കഴിഞ്ഞുview

The Eastron SDM230-Modbus is a single-phase multi-function energy meter designed to measure active energy (kWh) in AC circuits. It features an anti-reverse flow function, making it suitable for applications with on-grid inverters, such as Growatt systems. The meter communicates via Modbus, allowing for remote monitoring and integration into energy management systems. This model is supplied without an external Current Transformer (CT).

Figure 1: Eastron SDM230-Modbus Energy Meter (Front View)

Figure 2: Eastron SDM230-Modbus Energy Meter (In-box View)

2 സുരക്ഷാ വിവരങ്ങൾ

• ഇൻസ്റ്റാളേഷനും അറ്റകുറ്റപ്പണിയും യോഗ്യതയുള്ള ഉദ്യോഗസ്ഥർ മാത്രമേ നടത്താവൂ.
• Ensure all power is disconnected before installation or wiring.
• എല്ലാ പ്രാദേശിക ഇലക്ട്രിക്കൽ കോഡുകളും നിയന്ത്രണങ്ങളും പാലിക്കുക.
• Do not operate the meter if it appears damaged.
• The meter is designed for indoor use in a dry environment.

3. സജ്ജീകരണവും ഇൻസ്റ്റാളേഷനും

3.1 അൺപാക്കിംഗ്

Carefully remove the energy meter from its packaging. Inspect for any signs of damage during transit. Retain the packaging for future transport or storage.

3.2 മൗണ്ടിംഗ്

The SDM230-Modbus is designed for DIN rail mounting. Securely attach the meter to a standard 35mm DIN rail within an appropriate enclosure, ensuring adequate ventilation.

3.3 വയറിംഗ് കണക്ഷനുകൾ

പ്രധാനപ്പെട്ടത്: This meter is designed for direct connection up to 100A and does not require an external Current Transformer (CT). Ensure all connections are tight and secure to prevent loose contacts and overheating.

ചിത്രം 3: ഉദാample of prepared wiring for secure connections.

Refer to the terminal diagram on the meter's casing for precise wiring. A typical single-phase connection involves:

• L (Live) Input: Connect the incoming live wire to the designated 'L in' terminal.
• N (Neutral) Input: Connect the incoming neutral wire to the designated 'N in' terminal.
• L (Live) Output: Connect the outgoing live wire to the designated 'L out' terminal.
• N (Neutral) Output: Connect the outgoing neutral wire to the designated 'N out' terminal.
• Modbus (RS485) Connections: Connect the A and B terminals of the meter to your Modbus network or Growatt inverter's communication port. Ensure correct polarity (A to A, B to B).

For specific integration with Growatt single-phase on-grid inverters, consult the Growatt inverter's installation manual for detailed wiring and communication setup instructions.

4. പ്രവർത്തന നിർദ്ദേശങ്ങൾ

4.1 പവർ ഓണാണ്

Once wired correctly, apply power to the circuit. The meter's LCD display should illuminate and show readings.

4.2 ഡിസ്പ്ലേ നാവിഗേഷൻ

The meter features an LCD display and typically two buttons below it for navigation. These buttons allow you to cycle through various measured parameters such as:

• Total Active Energy (kWh)
• വാല്യംtagഇ (വി)
• നിലവിലെ (എ)
• സജീവ ശക്തി (W)
• റിയാക്ടീവ് പവർ (VAR)
• പവർ ഫാക്ടർ (പിഎഫ്)
• ആവൃത്തി (Hz)

Press the left button to scroll forward through parameters. The right button may be used for backward scrolling or entering settings menus, depending on the specific firmware version. Refer to the detailed product datasheet for a complete list of parameters and navigation specifics.

4.3 Anti-Reverse Flow Function

The meter is equipped with an anti-reverse flow function, which accurately measures energy consumption while preventing the registration of reverse energy flow (e.g., excess solar generation being fed back to the grid) as consumption. This ensures accurate billing and compliance with grid regulations for on-grid solar systems.

4.4 മോഡ്ബസ് കമ്മ്യൂണിക്കേഷൻ

The SDM230-Modbus uses the Modbus RTU protocol over RS485 for communication. This allows external devices, such as a Growatt inverter or a data logger, to read real-time energy data and other parameters from the meter. Ensure the Modbus address, baud rate, and parity settings are correctly configured on both the meter and the connected device. These settings can typically be adjusted via the meter's display menu or dedicated software.

5. പരിപാലനം

• വൃത്തിയാക്കൽ: Use a soft, dry cloth to clean the meter's exterior. Do not use abrasive cleaners or solvents.
• പരിശോധന: Periodically check wiring connections for tightness and signs of wear or corrosion.
• പരിസ്ഥിതി: പ്രവർത്തന അന്തരീക്ഷം നിർദ്ദിഷ്ട താപനിലയിലും ഈർപ്പത്തിലും പരിധിക്കുള്ളിൽ തന്നെയാണെന്ന് ഉറപ്പാക്കുക.
• ഉപയോക്തൃ-സേവനയോഗ്യമായ ഭാഗങ്ങൾ ഇല്ല: The meter contains no user-serviceable parts. Do not attempt to open or repair the device.

6. പ്രശ്‌നപരിഹാരം

• ഡിസ്പ്ലേ ഇല്ല: Check power supply to the meter. Ensure input voltage നിർദ്ദിഷ്ട പരിധിക്കുള്ളിലാണ് (230V).
• തെറ്റായ വായനകൾ: Verify all wiring connections are correct according to the terminal diagram. Ensure the meter is installed in the correct direction of energy flow.
• Modbus Communication Error: Check RS485 wiring for correct polarity (A/B). Verify Modbus address, baud rate, and parity settings on both the meter and the connected device (e.g., Growatt inverter). Ensure termination resistors are correctly applied if necessary.
• Meter Not Registering Energy: Confirm that current is flowing through the meter. Check for any circuit breakers that may be tripped.

If issues persist, contact technical support or a qualified electrician.

7 സ്പെസിഫിക്കേഷനുകൾ

8 ഉപയോക്തൃ നുറുങ്ങുകൾ

• ഗ്രൗണ്ടിംഗ്: Always ensure proper grounding for safety and optimal performance.
• ഇൻവെർട്ടർ അനുയോജ്യത: While designed for Growatt inverters, always cross-reference the meter's specifications with your specific inverter model for full compatibility.
• മോഡ്ബസ് കോൺഫിഗറേഷൻ: Double-check Modbus settings (address, baud rate, parity) on both the meter and the master device (e.g., inverter or data logger) to establish reliable communication.
• ഡോക്യുമെൻ്റേഷൻ: Keep this manual and any accompanying documentation from your Growatt inverter in a safe place for future reference.

9. വാറൻ്റിയും പിന്തുണയും

For warranty information, technical support, or service inquiries, please contact the seller, New Solar Store, or the manufacturer, Eastron. Retain your proof of purchase for warranty claims.