คอนแทคเตอร์,เบรกเกอร์,อินเวอร์เตอร์พลังงานแสงอาทิตย์,มิเตอร์ไฟฟ้า,แบตเตอรี่พลังงานแสงอาทิตย์
Delta inverters use the standard naming convention:
VFD-[Power Code][Series Code][Voltage Code][Special Function Code].
Some new models (such as the MS300 series) adopt a more detailed extended naming format.
The following provides a comprehensive explanation from four aspects: general structure, meaning of each part, typical series examples, and special function codes.
- General Model Structure (ตัวอย่าง: VFD007E23A)
| Position | Code | ความหมาย | Example Description |
| 1–3 | VFD | Product Identifier | Variable Frequency Drive. All Delta inverters start with this. |
| 4–6 | 7 | Rated Power Code | Represents 0.75 กิโลวัตต์ (750 ว). Different codes correspond to different power ratings. |
| 7 | E | Series Code | Indicates VFD‑E series (low‑power inverter with built‑in PLC). |
| 8–9 | 23 | แรงดันไฟฟ้า & Phase Code | “2” = 200–240 V, “3” = 3‑phase input. |
| 10 | ก | Special Function Code | Standard version with built‑in EMI filter. |
- Detailed Breakdown of Each Part
2.1 Power Code vs. กำลังไฟพิกัด (กิโลวัตต์)
| Power Code | กำลังไฟพิกัด | Power Code | กำลังไฟพิกัด | Power Code | กำลังไฟพิกัด |
| 2 | 0.2 | 15 | 1.5 | 75 | 7.5 |
| 4 | 0.4 | 22 | 2.2 | 110 | 11 |
| 7 | 0.75 | 37 | 3.7 | 150 | 15 |
| 10 | 1 | 55 | 5.5 | 220 | 22 |
บันทึก: Some high‑power models use actual power directly, เช่น, VFD110B43A = 110 กิโลวัตต์.
2.2 Series Code & คุณสมบัติ
| Series Code | Series Name | Key Features | การใช้งานทั่วไป |
| M | VFD‑M | Low noise, compact size | Small machinery, packaging, conveyors |
| E | VFD‑E | Built‑in PLC | Automated production lines |
| บี | VFD‑B | Sensorless vector control, high torque | Fans, ปั๊ม, คอมเพรสเซอร์, cranes |
| เอฟ | VFD‑F | For fans & ปั๊ม, built‑in PID | HVAC, cooling towers, water supply |
| MS | MS300 | Compact high‑performance general‑purpose | Small automation, replaces VFD‑M |
| MH | MH300 | High‑performance vector, servo‑grade | Positioning, tension control, sync motors |
| CP2000 | VFD‑CP2000 | Sensorless vector, high overload | General industrial machinery |
| ED | VFD‑ED | Dedicated for elevators | Passenger & freight elevators, escalators |
2.3 แรงดันไฟฟ้า & Phase Code
| Code | Input Power | Output | Application Region |
| 21 | 1‑phase 200–240 V | 3‑phase 0–240 V | Home/small equipment, Asia/NA |
| 23 | 3‑phase 200–240 V | 3‑phase 0–240 V | Industrial, Asia/NA |
| 43 | 3‑phase 380–460 V | 3‑phase 0–460 V | Industrial, global |
| 53 | 3‑phase 525–600 V | 3‑phase 0–600 V | High‑voltage industrial |
2.4 Special Function Suffix Codes
| Letter | ความหมาย | Letter | ความหมาย | Letter | ความหมาย |
| ก | With EMI filter, มาตรฐาน | บี | With braking unit | เอ็น | Without EMC filter |
| ส | Built‑in STO | H | Enhanced heat dissipation | ป | Higher protection |
| ‑21 | Special version | ‑00 | Standard version | ‑EA | Energy‑saving for fans/pumps |
- New Extended Format (ตัวอย่าง: VFD1A5MS43ANSHA, MS300)
| Position | Code | ความหมาย | Description |
| 1–3 | VFD | Inverter identifier | Standard prefix |
| 4–6 | 1A5 | Rated output current | 1.5 ก (≈ 0.75 กิโลวัตต์) |
| 7–8 | MS | รหัสซีรีส์ | MS300 series |
| 9–10 | 43 | Voltage code | 460 V 3‑phase input |
| 11 | ก | IP rating | IP20 |
| 12 | เอ็น | EMC configuration | Without EMC filter |
| 13 | ส | Safety function | Built‑in STO |
| 14 | ส | Cooling | Standard cooling |
| 15–16 | AA | Special options | Standard configuration |
- Complete Model Examples
ตัวอย่าง 1: VFD007E23A
VFD: Inverter
007: 0.75 กิโลวัตต์
E: E series (built‑in PLC)
23: 3‑phase 200–240 V input
ก: Standard with EMI filter
ตัวอย่าง 2: VFD110B43A
VFD: Inverter
110: 110 กิโลวัตต์
บี: B series (sensorless vector)
43: 3‑phase 380–460 V input
ก: Standard with EMI filter
ตัวอย่าง 3: VFD1A5MS43ANSHA
VFD: Inverter
1A5: 1.5 A output (≈ 0.75 กิโลวัตต์)
MS: MS300 series
43: 460 V 3‑phase input
ก: IP20
เอ็น: No EMC filter
ส: STO
ส: Standard cooling
AA: Standard version
- Selection & Identification Tips
- Power matching: Select according to motor rated power; inverter ≥ 1.1× motor power recommended.
- Voltage compatibility: Confirm input phase and voltage (21/23/43, ฯลฯ).
- Series function: Choose by application (F for fans/pumps, E for PLC).
- Special requirements: Select protection, อีเอ็มซี, and safety functions as needed.
- Backward compatibility: New models (เช่น, MS300) replace older ones.
- Quick Identification Mnemonic
Start with VFD,
Numbers show power,
Letters show series,
Two digits show voltage,
Suffix shows features.
With the above explanation, you can easily identify the power, series, แรงดันไฟฟ้า, and functions of any Delta inverter model for accurate selection, purchasing, and maintenance.
