VFD004EL21W-1 Delta VFD

VFD004EL21W-1 Delta VFD Specification

Power Factor
>=0.98

Humidity %
090% RH (non-condensing)

Connector Type
Terminal Block

Shape
Rectangular

Overheating Protection
YES

Efficiency
>=95%

Feature
Built-in EMI filter, Easy operation

Insulation Material
Thermoplastic

IP Rating
IP20

Mounting Type
DIN Rail / Wall Mounting

Surface Finish
Matte

Operating Temperature
-10C ~ +50C

Product Type
Variable Frequency Drive (VFD)

Application
Industrial Automation, Motor Speed Control

Protection Level
Overvoltage, Overcurrent, Overload

Frequency (MHz)
0.1 600 Hz (output frequency)

Rated Voltage
Single Phase 230VAC

Energy Consumption
Optimized for Low Energy Consumption

Output Type
AC Output

Color
Grey

Dimension (L*W*H)
128 x 68 x 126 mm

Weight
1.0 kg

Size
Compact

Phase
Single Phase

Input Voltage
Single Phase 200240V AC 15%

Material
Plastic / Metal

Connection Type
Screw Terminal

No Of Poles
3

Input Frequency
50/60 Hz

Braking Capability
Built-in Braking Circuit

Software Features
Multi-step speed, Fault Recording, PID Control

Motor Power Rating
0.4 kW (1/2 HP)

Model Number
VFD004EL21W-1

Alarm Functions
Overcurrent, Overload, Overvoltage, Undervoltage, Overheat, Short Circuit

Communication Interface
RS-485 (Modbus)

Cooling Method
Cooling Fan

Start/Stop Method
Keypad, Remote, Terminal

Display Type
LED Digital Keypad

Torque Boost
Manual / Auto

Control Method
V/F Control, Sensorless Vector Control

About VFD004EL21W-1 Delta VFD

Delta VFD004EL21W(-1) VFD-EL-W Series

Series: EL-W
0.25 HP
0.4 KW
2.5 A
230 V
Input: 1 PH

Description

SPECIFICATIONS

Series	VFD-EL-W Series
Input Voltage Phase	230 V 1 Phase
Motor Power Range	0.4 KW 0.5 HP 2.5 A
Weight	2.2 lbs
Dimensions	3.62 in (W) x 3.23 in (H) x 6.38 in (D)

CATALOG & MANUALS


Users Manual	Delta EL-W Series Users Manual

SERIES DESCRIPTION

Deltas VFD-EL-W series is the new generation compact vector control drive. Simple, delicate and durable design inherits Deltas superior drive technology.

Various essential functions are built-in as standard, including: Multi-step Operation; Torque Compensation; PID Control; Multi-Pump Control; Water Supply at Constant Pressure; Leakage Detection function and so on.

Features Include:

Simple Speed Control
Horizontal Movement
Fixed Load Applications

Safety and Reliability
150 % / 60 secs overload capability | Energy-saving | CE certification

Easy Maintenance
Natural cooling | Fan Cooling

Complete Functions
Single / multi-pump control: constant pressure mode & alternative operation | Built-in PID feedback control | Protection: overload, over voltage / over current stall prevention

Compact and Efficient Design

The VFD004EL21W-1 delivers powerful motor speed control in a space-saving form factor, measuring just 128 x 68 x 126 mm and weighing only 1.0 kg. Its matte finish and durable construction enable easy installation in tight spaces, making it suitable for both DIN rail and wall mounting in modern automation setups.

Advanced Motor Control and Safety Features

Utilizing V/F and sensorless vector control, this VFD ensures precise and efficient motor performance. Its comprehensive protection functions-covering overcurrent, overload, overvoltage, undervoltage, overheating, and short circuits-significantly minimize downtime and enhance operational reliability in demanding industrial environments.

Flexible Operation and Communication

With a simple LED digital keypad, multiple control options (keypad, remote, terminal), and RS-485 (Modbus) interface, the VFD004EL21W-1 integrates easily into existing systems. Its built-in functions like PID control, multi-step speed, and fault recording enable seamless automation and process optimization.

FAQ's of VFD004EL21W-1 Delta VFD:

Q: How do I start and stop the VFD004EL21W-1?

A: The VFD004EL21W-1 offers flexible start/stop options including direct operation via the LED digital keypad, through remote control, or by terminal input. This versatility allows easy integration into various industrial control setups.

Q: What are the benefits of the built-in braking circuit in this VFD?

A: The built-in braking circuit provides faster and safer motor stops, enhancing operational efficiency and minimizing wear on equipment-especially beneficial in applications that require frequent stopping or quick deceleration.

Q: When should I use remote or terminal control for the VFD?

A: Remote and terminal control options are ideal for centralized or automated environments where the VFD needs to interact with other control systems, such as programmable logic controllers (PLCs), to streamline operations and improve safety.

Q: Where can this VFD be mounted?

A: The VFD004EL21W-1 is designed for flexible installation. It can be DIN rail-mounted or directly fixed to the wall, making it suitable for cabinet integration or standalone industrial equipment.

Q: What process features does the VFD include for advanced automation?

A: This VFD includes multi-step speed control, PID regulation, manual/auto torque boost, and fault recording features, enabling precise process customization and enhanced operational transparency.

Q: How does the VFD004EL21W-1 improve energy efficiency?

A: It is optimized for low energy consumption, achieves a power factor of 0.98, and delivers efficiency rates of at least 95%, significantly reducing energy costs in long-term operations.

Q: What protection does the VFD provide for my motor and system?

A: The VFD offers extensive protection, including overcurrent, overload, overvoltage, undervoltage, overheat, and short circuit alarms, safeguarding both your motor and the overall system against operational faults.

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