Industrial Automation

Delta VFD/AC Drive available for you in India’s lowest Price.


At the heart of industrial processes lies the need for precision and control, and Delta VFD/AC Drives are designed to meet and exceed these demands. As we navigate through this exploration, readers will gain a comprehensive understanding of how these drives revolutionize the control of speed and torque in electric motors, offering a level of flexibility that is crucial in today’s fast-paced manufacturing environments.

Variable Frequency Drives (VFDs) can control motor speed to ensure smooth operations such as water treatment run smoothly while saving energy.

Delta’s sensorless vector AC Drive E series is an IP20 rated drive with built-in PLC functionality for simple Ladder Logic programs, offering flexible extension cards to meet various application needs. Delta VFD/AC Drives have emerged as a game-changer, providing efficient and reliable solutions for various applications.These drives convert fixed voltage and frequency to adjustable levels, offering precision and flexibility in industrial processes.

How it is Use

Delta VFD/AC Drives are sophisticated electronic devices used to regulate the speed and torque of electric motors running on alternating current (AC) power. As essential components of modern industrial automation systems, these drives offer precise speed control, energy efficiency improvements, and increased equipment reliability.

VFDs work by adjusting motor speed to closely match output requirements, leading to energy savings of up to 50%. VFDs also come equipped with safety features like auto-reset function and multi-function I/O terminal that enable users to monitor operation of drives. They can even be managed using standard communication protocols like RS232 and RS485, making VFDs ideal for controlling from PLC.

How Delta VFD/AC Drive Work in Short?

Understanding the fundamental workings of VFDs is crucial for effective utilization. VFDs control motor speed by adjusting the frequency and voltage of the power supplied to the motor. This dynamic control allows for efficient operation and prevents unnecessary wear and tear on the motor.

What is the Work of Delta VFD/AC Drive ?

Delta VFDs control speed and torque to improve application efficiency, enhance machine automation and save energy. Drives equipped with advanced power electronics and microprocessor technology also feature built-in fault reset capabilities that quickly self-diagnose issues such as motor overheating or loss of power to ensure efficient functioning.

VFDs can be especially effective at cutting costs with centrifugal fan and pump applications that would otherwise cost too much to run using conventional AC line power. By switching the speed down as needed, variable speed operation reduces power consumption by an amount that directly corresponds with load’s speed reduction, leading to significant energy cost savings and energy cost reductions.

Example of Working VFD:-

One example of the VFD’s built-in fault reset capability is its electronic thermal overload feature, which activates when voltage and frequency of input power supply exceeds their rated values. This feature eliminates the need for mechanical overload on motor, thus saving money and space.

An additional advantage of the internal overload feature of VFDs is their flexibility; you can configure them for use on either single-phase Delta service, solidly grounded star/wye services, or solidly grounded star/wye services, eliminating costly electrical and physical damage to surge protective components by not disconnecting their internal ground reference, as would occur when used solely on single phase Delta services.

Installation and Setup:-

Proper installation and configuration are paramount for optimal VFD performance. Following manufacturer guidelines and ensuring accurate parameter settings are essential steps in setting up a VFD system. Users must adhere to safety protocols to prevent accidents during installation.

Common Issues and Troubleshooting:-

Despite their reliability, VFDs may encounter issues. Identifying common problems, such as overloading or electrical issues, and implementing effective troubleshooting measures is vital for uninterrupted operation.

Series of Delta VFD/ AC Drive

Delta VFD/AC Drives are power electronics products used to regulate the speed and direction of an AC three phase induction motor, improving machine automation, saving energy, reducing downtime, providing numerous customizable controls and operating modes to meet a wide variety of application needs and saving energy at the same time. Leveraging modern power electronics technology along with microprocessor technology enables Delta AC drives to save energy by efficiently managing motor speeds.

Use Of AC Drive 

Common applications of inertia loads controllers include air blowers, conveyor belts, webbing looms, air conditioning systems for large buildings and temperature control of middle/large ovens. They can also be used to manage industrial washing machines and fans. This compact vector control drive offers excellent energy savings with its open loop IM motor control and EPS/ARD feature for elevators. Furthermore, it comes equipped with several elevator-specific functions to provide greater flexibility and safety in lifting applications of all kinds.

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

  • Edge banding machine
  • Logistic conveyor
  • Material handling
  • Constant pressure pump
  1. Compact, simple and durable design.
  2. Multi-speed operation and control mode: digital panel, external terminal and Modbus communication.
  3. Multi-pump control; PID Control.
  4. Support one drive with two motors in parallel and Time Out Detection function.
  5. High overload capacity, 150% rated current for 1 min.
  6. Certification: CE, RoHS, GB12668.3

The VFD-EL series is multiple function new generation micro type AC drive. It has built in EMI filter, RFI switch, easy DC bus sharing for side-by-side installation, high precision current detection, overload protection, and a built In keypad.

  • Small size pump & fan, blowing machine, conveyer belt, simple DIY processing equipment
  1. Output frequency: 0.1~600Hz
  2. 3 points adjustable V/f curve
  3. Built-in PID feedback control
  4. RFI-switch for IT mains
  5. Built-in EMI filter (for models 230V 1-phase and 460V 3-phase)
  6. Use RS-485 communication interface (RJ-45) with Modbus protocol
  7. Optional communication modules for multiple communication protocols, such as Profibus, DeviceNet, LonWorks and CANopen
  8. Complete protection function

Delta‘s ME300 Series is a new generation compact vector control drive that inherits Delta’s superior drive technology, but with a 60% reduction in size. It supports both IM and PM motors, providing higher efficiency and flexibility.


Fans & pumps, conveyors, blowing machines, packing machines, wood working machines

  • Supports IM / IPM /SPM motors and VF / SVC control
  • Dual rating design:
    -Normal Duty (ND), 120% for 60 seconds or 150% for 3 seconds
    -Heavy Duty (HD), 150% for 60 seconds or 200% for 3 seconds
  • Up to 200% rated starting torque at 3 Hz
  • 2 set of motor parameter for multi-motor control
  • Supports high speed pulse and PWM signal input
  • Built-in single /multi-pump function
  • Built-in braking choppers for the entire series
  • Optional EMC filter for 1-phase 230V(C2), 3-phase 460V(C3) models
  • Optional Safe Torque Off (SIL2/PLd) model
  • 100% PCB coating for circuit(IEC 60721-3-3 class 3C3) for harsh environment

Delta’s MS300 series is a standard compact vector control drive that inherits Delta’s superior drive technology. It supports both IM and PM motor control for application flexibility and provides STO safety mechanism. Also built-in various essential functions, including PLC capacity for simple programming needs, a communication slot for various communication cards, and a USB port to make data uploads and downloads fast and easy. Saving space, reducing setup and wiring time, while providing high efficiency and stability system —all included in the MS300 series with drive size reduced up to 40%.


Machine tools, textile machines, woodworking machines, packaging machines, electronics, fans, pumps, air compressors

  • Supports Open loop control of IM and PM motors
  • Output frequency:
    Standard models: 0 to 599 Hz
    High speed models: 0 to 1,500 Hz (V/f control for IM motor only)
  • Dual rating design:
    120% for 60 seconds for Normal Duty (ND)
    150% for 60 seconds for Heavy Duty (HD)
  • Built-in PLC program with 2K steps capacity
  • Built-in brake choppers for the entire series
  • Removable 5-digit LED keypad for remote operation
  • Safety standard compliance: Safe Torque Off (SIL2/PLd)
  • Multi-motor Control,built-in four IM motor control parameters
  • Optional built-in Class A (C2) standard EMC filter for 1-phase 230V, 3-phase 460V models
  • One high speed pulse input terminal MI7 built-in with maximum speed up to 33kHz
  • One high speed pulse output terminal DFM built-in with maximum speed up to 33kHz
  • New PCB coating for circuit (IEC 60721-3-3 class 3C2) and thermal design suitable for harsh environment applications
  • Built-in RS-485 (Modbus) and various communication card options : CANopen, PROFIBUS DP, DeviceNet, MODBUS TCP, EtherNet/IP, EtherCAT, PROFINET

Sensorless Vector AC Micro Drive. The VFD-E series represent Delta Electronics low horsepower, constant torque, IP20 rated Drive. Modular in design with flexible extension cards and a built-in PLC function, the E drive offers the ability to write and to execute simple Ladder Logic programs. This state-of-the-art series meets a full range of application requirements.

  • Smaller cranes; washing machines; treadmilsl; robot arm of injection machine (clamp); elevator; grinding machine; drilling machine; wood machine; webbing loom; air conditioner for large buildings; water supply system for large buildings, etc.
  1. Output frequency: 0.1~600Hz
  2. Modular & compact design
  3. Built-in PLC function
  4. Built-in EMI filter (230V 1 phase / 460V 3 phase)
  5. Optional Fieldbus Modules (DeviceNet, Profibus, LonWorks and CANopen)
  6. RFI-switch for mains
  7. Easy DC BUS sharing
  8. Flexible extension
  9. Complete Protection

The VFD-C200 Series is an intelligent vector control micro drive that provides versatile control modes for motors and includes built-in PLC functions with capacity up to 5,000 steps. It is suitable for harsh environment applications with a strengthened thermal and anti-dust design that provides comprehensive protection.

  • Food packaging machinery, conveyors, textile machinery, woodworking machinery, fans, pumps
  • uilt-in PLC program with 5,000 steps capacity
  • Built-in brake chopper
  • Modbus RS-485 and CANopen (Slave)
  • The high-brightness LED keypad shares the same extension cable of the VFD-E/M/B Series to maximize operation distance
  • Supports open loop control of permanent motors (PM Sensorless)
  • Two high speed pulse input terminals MI7 and MI8 built-in with maximum speed up to 33kHz
  • Two high speed pulse output terminals DFM1 and DFM2 built-in with maximum speed up to 33kHz
  • New PCB coating for circuit (IEC 60721-3-3 class 3C2) and thermal design suitable for harsh environment applications
  • C200 Series Frame A supports wall mounted installation

Delta’s Sensorless Vector Control Drive CP2000 Series has extended the idea of energy saving and uses this principal as the basis of its design. The CP2000 is specifically designed for applications such as air blowers, pumps and HVAC drives with its intelligent PID control providing the greatest efficiency. The Sensorless Vector Control (SVC) offers timely response to load torque increase/decrease which satisfies customer requirements for load changes while enhancing motor performance. 


Fixed-displacement pumps (fix flow and fix time), building automation, factory automation, HVAC drives, cooling pumps, cooling towers and general motor applications.

The C2000 Plus Series features precise speed, torque and position control functions that are suitable for both sensor and sensorless synchronous / asynchronous motors.

With higher overload capacity, the power range of the C2000 Plus Series can reach up to 560 kW, providing the best performance and stability for a variety of heavy duty and constant torque applications, such as production, processing, food industry, chemical industry, metal processing, rubber and plastics, municipal & infrastructure, and other industries.

Features & Benefits
  • Heavy-duty overload capability up to 150% / 60 sec. and 180% / 3 sec. at rated current; sensorless vector control of IM / PM / SynRM motors
  • IP55 fans, efficient heat sink and Class 3C3 conformal PCB coating
  • Built-in PLC (10k steps) and remote I/O integration for CANopen / Modbus master stations
  • Positioning control, master / slave torque control, electromagnetic energy traction control, and more
  • Communication cards (optional): EtherCAT, EtherNet/IP, DeviceNet, PROFINET, PROFIBUS DP, Modbus TCP, CANopen

Extruders, rubber millers, injection molding machines, pipe bending machines, conveyance systems, winding machines, bridge cranes, stage lifting systems, glass tempering furnaces, electromagnetic stirrers

United Control Engineers India Pvt Ltd: Paving the Way for Affordable Delta VFDs in India

United Control Engineers India Pvt Ltd plays a pivotal role in shaping the landscape of affordable Delta VFDs (Variable Frequency Drives) in India. As a prominent player in the market, the company is committed to providing top-quality Delta VFDs at the lowest prices. Through strategic partnerships, efficient supply chain management, and a customer-centric approach, United Control Engineers has successfully positioned itself as a key contributor to making Delta VFD technology accessible to a wide range of industries in India. 

By ensuring competitive pricing without compromising on product quality, the company has become a reliable source for businesses seeking cost-effective solutions for their variable frequency drive needs.

With a focus on affordability and performance, United Control Engineers India Pvt Ltd continues to play a vital role in making Delta VFD technology more accessible and beneficial for the Indian market.


In conclusion, the availability of Delta VFD/AC Drives at the lowest price in India marks a significant stride in the accessibility of advanced industrial technology. United Control Engineers India Pvt Ltd, with its commitment to delivering quality solutions at competitive rates, stands out as a leader in this paradigm shift. By offering Delta VFDs at the most affordable prices, our company, United Control Engineers, not only makes cutting-edge technology accessible but also ensures businesses across diverse sectors can harness the benefits of variable frequency drives without compromising on their budget.

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