1. مقدمه و بیش ازview
The EASTRON SDM630MCT-Modbus Power Consumption Monitor is a robust device designed for precise monitoring and management of single and three-phase electrical usage. It features an easy-to-read digital backlit LCD display, ensuring clear data visibility in various lighting conditions. This meter facilitates seamless integration with other systems via its Modbus RS485 communication function.
The SDM630MCT-Modbus accurately measures a comprehensive range of electrical parameters, including voltage, frequency (Hz), current (A), power (KW/kVA/kVAr), and both import, export, and total energy (kWH/kVArh). This detailed measurement capability assists users in identifying areas for energy consumption reduction, leading to potential energy and cost savings.
شکل 1: جلو view of the EASTRON SDM630MCT V2 Electricity Meter, showing the LCD display and control buttons.
2. ویژگی های کلیدی
- Versatile Network Compatibility: Supports single-phase or three-phase networks (3P4W, 3P3W, 1P2W).
- ورودی ترانسفورماتور جریان (CT): Compatible with 1A or 5A current transformers.
- اندازهگیری جامع: Measures kWh, kVArh, W, Var, VA, V, A, PF (Power Factor), THD (Total Harmonic Distortion), Hz, Max.DMD (Maximum Demand), Imp_kWh (Import kWh), Exp_kWh (Export kWh), and more.
- Bi-directional Measurement: Capable of measuring both import and export for kW and kWh.
- Modbus RS485 Communication: Built-in Modbus RS485 RTU for integration with building management systems or data loggers.
- Pulsed Outputs: Includes 2 configurable pulsed outputs for energy indication (e.g., import/export/net kWh).
- نصب ریل DIN: Designed for easy installation on a standard 35mm DIN rail.
- طراحی فشرده: Four-module wide housing, optimizing space in electrical panels.
- صفحه نمایش LCD با نور پس زمینه: Digital display with backlight for clear readability day and night.
- User-Friendly Navigation: Easy menu navigation via intuitive buttons.
- MID Certified: Suitable for billing purposes (MID calibrated).
- Sealing Hole: Provides a safety seal option after installation to prevent tampحلقه
Figure 2: Key features and capabilities of the SDM630MCT Modbus meter, highlighting its multi-function power analysis.
شکل 3: نمای نزدیک view illustrating the Pulse LED, LCD Backlight Display, functional touch buttons, sealing hole, and 35mm DIN rail mounting.
3. راه اندازی و نصب
The EASTRON SDM630MCT V2 is designed for DIN rail mounting within an electrical enclosure. Proper installation requires knowledge of electrical systems and adherence to local electrical codes. It is strongly recommended that installation be performed by a qualified electrician.
3.1 Current Transformer (CT) Connection
This meter requires external Current Transformers (CTs) for operation. CTs are essential for measuring current in high-amperage circuits and provide isolation between the measurement device and the main power lines. The meter supports 1A or 5A CT inputs. Ensure the CTs are correctly sized for your application and connected according to the wiring diagram provided in the full product manual.
CT-powered meters are widely used to monitor power grid operation. Multiple CTs may be installed for different applications, such as protective devices and revenue measurement, to ensure proper isolation and allow for CTs with varying characteristics (accuracy, overload capacity).
3.2 Modbus RS485 Connection
The Modbus RS485 interface allows the meter to communicate with other devices, such as data loggers, PLCs, or building management systems. Connect the RS485 A and B terminals to your Modbus network. Ensure proper polarity and termination resistors are used as per Modbus standards. The meter's Modbus address can typically be configured via the device's menu.
3.3 نصب فیزیکی
- Mount the meter securely on a standard 35mm DIN rail within an appropriate electrical enclosure.
- جلد را وصل کنیدtage inputs (L1, L2, L3, N) as per your single or three-phase system configuration.
- Connect the secondary windings of the Current Transformers to the meter's CT input terminals. Ensure correct phase and direction.
- Connect the Modbus RS485 communication lines (A and B) and any pulsed output lines if required.
- After installation, the sealing hole can be used to apply a safety seal, preventing unauthorized tampحلقه
توجه: این کتابچه راهنمای کلی را ارائه می دهدview. For detailed wiring diagrams, safety precautions, and specific installation steps, please refer to the complete installation guide provided with your product or consult a qualified electrician.
4. دستورالعمل های عملیاتی
The EASTRON SDM630MCT V2 features an intuitive interface for easy operation and data retrieval.
۵.۲ نمایشگر LCD و ناوبری
The backlit LCD display provides real-time readings of various electrical parameters. Navigation through the display screens and configuration menus is done using the front panel buttons (typically 'M' for Menu/Mode, 'Up' and 'Down' arrows for navigation, and 'Enter' for selection).
4.2 Viewاندازهگیریها
Upon power-up, the meter typically displays the total energy (kWh). Use the navigation buttons to cycle through different measurement screens, which may include:
- جلدtage (V) per phase and line-to-line
- جریان (A) در هر فاز
- توان اکتیو (کیلووات) در هر فاز و کل
- Reactive Power (kVAr) per phase and total
- Apparent Power (kVA) per phase and total
- فاکتور قدرت (PF)
- فرکانس (هرتز)
- Import/Export kWh and kVArh
- Maximum Demand (Max.DMD)
4.3 Configuration (Advanced Users)
The meter allows configuration of various settings, such as the CT ratio, Modbus address, baud rate, and pulse output parameters. Accessing and modifying these settings typically involves entering a password-protected menu. Refer to the detailed product manual for specific instructions on menu navigation and parameter configuration.
برای مثالample, some users have reported that when connecting to specific inverters (e.g., Growatt), the Modbus address may need to be set to '2' for proper communication.
توجه: Incorrect configuration can lead to inaccurate readings or communication issues. Only modify settings if you are familiar with the required parameters.
5. تعمیر و نگهداری
The EASTRON SDM630MCT V2 is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance:
- تمیز کردن: Keep the meter's display and casing clean using a soft, dry cloth. Avoid abrasive cleaners or solvents.
- اتصالات: Periodically inspect all wiring connections (voltage, CT, Modbus, pulse outputs) to ensure they are secure and free from corrosion. Loose connections can lead to inaccurate readings or intermittent operation.
- محیط زیست: Ensure the meter is operating within its specified environmental conditions (temperature, humidity) to prevent damage and ensure accuracy.
- به روز رسانی سیستم عامل: While not typically user-serviceable, check with EASTRON support for any available firmware updates that might improve performance or address known issues.
هشدار: Always disconnect power to the meter and associated circuits before performing any inspection or maintenance to prevent electric shock.
6 عیب یابی
This section provides solutions to common issues you might encounter with your EASTRON SDM630MCT V2 meter. If the problem persists, contact technical support.
| مشکل | علت احتمالی | راه حل |
|---|---|---|
| Meter display is blank or not powering on. | No power supply to the meter; incorrect wiring; internal fault. |
|
| Readings are inaccurate or zero. | Incorrect CT wiring (polarity, ratio); incorrect meter configuration; faulty CT. |
|
| Modbus communication failure. | Incorrect Modbus address; incorrect baud rate; wiring issues (A/B swapped, no termination); incompatible inverter/device. |
|
| Meter not responding to button presses. | Temporary software glitch; physical button damage. |
|
سلب مسئولیت: This troubleshooting guide covers common issues. For complex problems or if you are unsure, always consult a qualified professional or EASTRON technical support.
7. مشخصات
Below are the technical specifications for the EASTRON SDM630MCT V2 Electricity Meter.
Figure 4: Comprehensive technical specification table for the SDM630MCT V2 meter.
| دسته بندی | پارامتر | ارزش |
|---|---|---|
| مشخصات | جلد اسمیtage (Un) | 3x230/400V AC |
| جلد عملیاتیtage | 80% - 120% of Un | |
| Insulation capabilities - AC voltagمقاومت کنند | 4 کیلو ولت به مدت 1 دقیقه | |
| Insulation capabilities - Impulse voltagمقاومت کنند | 6KV - 1.2µS | |
| Rated current (Ib) | 5A CT or 333mV CT input | |
| محدوده جریان عملیاتی | 0.4% Ib - Imax | |
| تحمل بیش از حد فعلی | 20 ایمکس برای 0.01 ثانیه | |
| محدوده فرکانس عملیاتی | 50 یا 60 هرتز | |
| Power consumption per phase | ≤ 2W/10VA | |
| خروجی پالس 1 | قابل تنظیم | |
| خروجی پالس 2 | 3200 Imp/kWh | |
| نمایش | LCD | |
| Max reading | 999999.9 kWh/kVArh | |
| معیارهای عملکرد | رطوبت عملیاتی | ≤ 90% |
| رطوبت ذخیره سازی | ≤ 95% | |
| دمای عملیاتی | -25 درجه سانتیگراد - +55 درجه سانتیگراد | |
| دمای ذخیره سازی | -40 درجه سانتیگراد - +70 درجه سانتیگراد | |
| دمای مرجع | 23 ± 2 درجه سانتی گراد | |
| استاندارد بین المللی | IEC 62053-21 / EN50470-1/3 | |
| کلاس دقت | Class 1 / Class B | |
| زیست محیطی | دسته نصب | CAT III |
| محیط مکانیکی | M1 | |
| محیط الکترومغناطیسی | E2 | |
| درجه آلودگی | 2 | |
| محافظت در برابر نفوذ گرد و غبار و آب | IP51 (داخلی) | |
| کنتور محصور شده عایق از کلاس محافظ | II | |
| EMC | تخلیه الکترواستاتیک | 8KV contact / 15KV air gap |
| Radiated & conducted emissions | EN 55022 | |
| دقت | جلدtage، جریان | 1.0 % or 0.5% option available |
| فرکانس | 0.2 درصد فرکانس متوسط | |
| ضریب قدرت | 1% of Unity (0.01) | |
| Active power / Apparent power | ± 1٪ از حداکثر محدوده | |
| توان راکتیو | ± 1٪ از حداکثر محدوده | |
| انرژی راکتیو (kVArh) | کلاس 2 | |
| انرژی فعال (کیلووات ساعت) | کلاس 1 | |
| ابعاد محصول | 10.3 x 11 x 8 سانتی متر; 290 گرم | |
| مدباس | نوع اتوبوس | RS485 (semi-duplex) |
| پروتکل | Modbus RTU | |
| نرخ باود | 2400/4800/9600/19200/38400bps | |
| محدوده آدرس | 1-247 | |
| Max. Bus loading | 64 عدد | |
| فاصله ارتباطی | 1000 متر | |
| برابری | زوج / فرد / هیچ | |
| بیت داده | 8 | |
| کمی متوقف شوید | 1 |
Figure 5: Dimensional drawing of the EASTRON SDM630MCT V2, showing height, width, and depth.
- ابعاد محصول: 10.3 x 11 x 8 سانتی متر; 290 گرم
- شماره مدل کالا: SDM630MCT-MODBUS-MID
- سازنده: ایسترون
8. گارانتی و پشتیبانی
EASTRON is committed to providing high-quality electrical measurement instruments. While specific warranty details are not provided in this document, standard manufacturer warranties typically cover defects in materials and workmanship for a defined period from the date of purchase.
For warranty claims, technical assistance, or to obtain the full product documentation (including detailed wiring diagrams and advanced configuration guides), please contact EASTRON customer support or your authorized reseller. Many users have reported positive experiences with EASTRON's responsiveness in providing necessary documentation and support.
You can typically find contact information on the official EASTRON webسایت یا از طریق مستندات خرید شما.
Figure 6: EASTRON's commitment to quality and reliability, as evidenced by certifications like the SGS EU Type Examination Certificate.
Figure 7: EASTRON's dedication to innovation and quality in the development of intelligent meters.
