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Delta EL-W Series VFD – 1-Phase Input Models (0.25–3 HP)
The Delta EL-W Series is a high-efficiency, sensorless vector control VFD line designed for compact automation needs. Supporting 1-phase 230V input with 3-phase motor output, these drives deliver reliable speed control, energy-saving operation, and robust protection. Whether you’re integrating into an OEM panel or retrofitting a small machine, EL-W drives simplify motor control with built-in Modbus RTU, PID feedback, and torque boost functionality.
Despite their slim design, EL-W drives handle applications ranging from 0.25 HP to 3 HP with natural or fan cooling, and support standard RS-485 communication. Their intuitive keypad and wide output frequency range ensure fast commissioning and precise operation.
Models: VFD002EL21W-1, VFD004EL21W-1, VFD007EL21W-1, VFD015EL21W-1, VFD022EL21W
Features – Delta EL-W Series (1-Phase Input)
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Input Voltage: 1-phase 200–240V AC (±10%)
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Output Frequency: 0.1 to 400 Hz
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Control Method: Sensorless vector control (V/F, SPWM)
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PID Feedback Control: Built-in
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Carrier Frequency: Adjustable (2–12 kHz)
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Display: 4-digit LED keypad with FWD/REV/Stop indicators
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Communication: Built-in RS-485 with Modbus RTU
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Braking: DC braking supported (internal only)
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EMC Filter: Built-in with removable RFI jumper
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Mounting: Vertical panel or DIN rail
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Cooling: Natural or forced-air cooling
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Protection: Overvoltage, overcurrent, overload, ground fault, short circuit
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Application Modes: Customizable via parameters (multi-step speed, torque boost, etc.)
Technical Specifications – 1-Phase Delta EL-W VFD Models
| Model | Motor Power | Rated Output Current | Output Capacity | Frame | Cooling | Dimensions (mm) (W×H×D) | Weight |
|---|---|---|---|---|---|---|---|
| VFD002EL21W-1 | 0.25 HP / 0.2 kW | 1.6 A | 0.6 kVA | A1 | Natural | 92 × 162 × 128.7 | ~1.0 kg |
| VFD004EL21W-1 | 0.5 HP / 0.4 kW | 2.5 A | 1.0 kVA | A1 | Natural | 92 × 162 × 128.7 | ~1.0 kg |
| VFD007EL21W-1 | 1 HP / 0.75 kW | 4.2 A | 1.9 kVA | A1 | Natural | 92 × 162 × 128.7 | ~1.0 kg |
| VFD015EL21W-1 | 2 HP / 1.5 kW | 7.0 A | 3.5 kVA | B | Fan | 100 × 174 × 136 | ~1.4 kg |
| VFD022EL21W | 3 HP / 2.2 kW | 10.5 A | 5.0 kVA | B | Fan | 100 × 174 × 136 | ~1.4 kg |
Typical Applications
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Small conveyors and mixers
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Blowers and exhaust fans
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Laboratory and OEM automation
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Packaging and filling machines
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CNC spindle or motor control
Compatibility
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Works with standard 3-phase AC induction motors
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Fully integrable with Delta PLC, HMI, and sensor systems
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Optional accessories: AC line reactor, EMI filters, fan kits
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