Here’s a detailed overview of the Delta VFD004EL21A, a compact AC drive from the VFD-EL series, designed for small motor control applications:

 Technical Specifications

• Power Rating: 0.4 kW / 0.5 HP
• Input Voltage: 1-phase, 200–240V AC
• Output Voltage: 3-phase, 0–240V AC
• Output Current: 2.5 A
• Max Frequency: 600 Hz
• Control Method: V/Hz (scalar control)

 Features & Capabilities

• Built-in EMI Filter: Reduces electrical noise for better compliance
• RFI Switch: Enhances electromagnetic compatibility
• DC Bus Sharing: Supports side-by-side installation
• Braking Options: DC injection and dynamic braking (transistor included)
• Keypad: Integrated digital keypad for local control

 Communication & Interface

• Protocol: MODBUS via RS-485 (RJ-45 interface)
• Optional Modules: CANopen, Profibus, DeviceNet, LonWorks
• Enclosure Rating: IP20 (for indoor use)

 Dimensions & Mounting

• Frame Size: A
• Height: 174 mm
• Width: 72 mm
• Depth: 136 mm
• Mounting: DIN rail or chassis mount !