EV510A-0055G-T2: High-Performance Three Phase Vector VFD | 5.5kW, 220V
Why Choose This 5.5 kW (7.5HP) 220V Three Phase Vector VFD?
Choosing the right drive is crucial for performance and reliability. This specific 5.5 kW (7.5HP) VFD is the ideal solution for running 7.5HP (or smaller) three-phase motors in facilities with a 220V three-phase supply.
- Robust Torque for Industrial Loads: This model provides advanced vector control, essential for applications needing stable speed under varying loads and high starting torque (like loaded mixers or crushers). Its G-Type overload capacity (150% for 1 min) ensures it can handle demanding, constant-torque machinery.
- Energy and Cost Efficiency: By precisely matching the motor’s speed to the application’s demand, this VFD significantly reduces energy consumption on your 5.5kW (7.5HP) motor. The integrated features, like the built-in PLC and PID controller, can also eliminate the need for external control components, saving on hardware costs and simplifying your system design.
- Increased Equipment Lifespan:Â The soft-start and stop capabilities reduce mechanical stress on motors, gearboxes, and belts. This gradual acceleration minimizes wear and tear, prolonging the life of your machinery.
- Versatility for Complex Applications: With a rich set of I/O terminals and standard Modbus communication, this drive is built for integration into smart, automated systems.
Typical Application Fields
Material Handling
A reliable conveyor belt VFD for heavy industrial logistics, and for controlling hoists or windlasses.
Process Machinery
Ideal for air-compressor loads, industrial mixers (mix material machine), and grinders requiring high starting torque.
Crushing & Milling
Provides the robust G-Type overload capacity needed for a crusher load VFD or small rolling mill applications.
Control Characteristics
Control Mode | Sensorless Vector Control (SVC), Closed-loop Vector Control (FVC), V/F Control |
|---|---|
Highest Frequency | Vector Control: 0~500Hz; V/F Control: 0~500Hz |
Start Torque | 0.5Hz / 150% (in SVC mode) |
Speed Range | 1:100 (SVC) |
Speed Accuracy | ±0.5% (SVC) |
Overload Capacity | 150% rated current for 60s; 180% rated current for 3s |
I/O Specifications
Digital Input | 7 channels, with 1 channel supporting up to 100KHz high-speed pulse input |
|---|---|
Analog Input | 2 channels, supporting 0~10V voltage or 0~20mA current input |
Digital/Pulse Output | 1 high-speed pulse output channel (0~100kHz) |
Relay Output | 2 relay output channels |
Analog Output | 2 channels, supporting 0~20mA current or 0~10V voltage output |
Communication | Standard RS-485 (Modbus), supports CANlink |
Operating Environment
Installation Site | Indoors, no direct sunlight, no dust, corrosive gases, etc. |
|---|---|
Altitude | Below 1000 meters |
Ambient Temperature | -10°C to +40°C (derating required for 40~50°C) |
Humidity | <95%RH, no condensation |
Structural Dimensions
Dimensions (W x D x H) | 150 x 153 x 260 mm |
|---|---|
Installation Size (A x B) | 135 x 245 mm |
Installation Hole | φ6 |
Weight | 3.9 kg |
Quality Assurance
This product is developed and manufactured by Nanjing Oulu Electric Corp., Ltd. As a national high-tech enterprise focusing on industrial automation and new energy, we have an experienced R&D team and advanced production facilities, dedicated to providing high-quality, reliable products and solutions to customers worldwide.
Frequently Asked Questions (FAQ)
1. What is the difference between V/F control and Sensorless Vector Control (SVC)?
V/F control is a basic method for motor speed regulation, suitable for general-purpose loads like fans and pumps where precise torque control is not critical. Sensorless Vector Control (SVC) is a more advanced algorithm that provides precise control over the motor’s torque without needing an encoder. It delivers higher starting torque at low speeds and better speed stability, making it ideal for more demanding equipment.
2. How do I select the right VFD model for my motor?
The selection of a VFD primarily depends on three core parameters: the motor’s rated power, rated voltage, and the application’s load type. For example, in the model EV510A-0055G-T2, “0055” indicates it’s for a 5.5kW motor, “G” stands for general-purpose load (suitable for constant torque applications), and “T2” signifies a three-phase 220V input. Always ensure the VFD’s rated current is greater than or equal to the motor’s rated current.
3. What are the installation environment requirements for the inverter?
To ensure stable operation and a long service life, the inverter should be installed indoors in a well-ventilated area away from direct sunlight. The ambient temperature should be between -10°C and +40°C, with humidity below 95%RH and no condensation. The installation altitude should be below 1000 meters, and the area should be free from dust, corrosive gases, and flammable materials.
4. What happens if there is a momentary power outage?
This series of inverters features a “ride-through” (Instantaneous stop, not stop) function. In the event of a brief power grid voltage drop or momentary outage, the VFD can use the energy fed back from the motor to compensate for the voltage loss, allowing it to continue running for a short period and preventing production interruptions.
Quick Start Guide (How-To)
Warning:Â The following steps are a basic guide only. All electrical work must be performed by qualified professional personnel. Before any wiring, ensure the main power is completely disconnected and wait at least 10 minutes for the internal capacitors of the VFD to fully discharge.
- Step 1: Installation
- Mount the inverter vertically on a sturdy, non-flammable surface, such as a metal mounting plate. Ensure there is sufficient clearance around the unit (at least 100mm recommended) for proper ventilation and heat dissipation.
- Step 2: Main Circuit Wiring
- Connect the three-phase 220V AC power lines to the inverter’s input terminals R, S, and T.
- Connect the three wires of the three-phase asynchronous motor to the inverter’s output terminals U, V, and W.
- Securely connect the ground wire to the inverter’s PE (Protective Earth) terminal.
- Step 3: Control Circuit Wiring (for Basic Start/Stop)
- Connect one end of an external switch (or button) to the digital input terminal S1.
- Connect the other end of the switch to the common terminal COM.
- Set parameter P0-02 (Command source selection) to “1” (Terminal command channel).
- Set parameter P4-00 (S1 function selection) to “1” (Forward run).
- Step 4: Motor Parameter Setting & Auto-tuning Upon first power-up, accurately enter the following parameters from your motor’s nameplate:
- P1-01: Motor Rated Power (set to 5.5kW)Â
- P1-02: Motor Rated Voltage (set to 220V)Â
- P1-03: Motor Rated CurrentÂ
- P1-04: Motor Rated FrequencyÂ
- P1-05: Motor Rated SpeedÂ
- For optimal vector control performance, perform a motor auto-tune. Set parameter P1-37 (Motor auto-tuning method) to “2” (dynamic auto-tuning) and start the inverter.
- Step 5: Test Run
- After confirming all wiring and parameter settings are correct, turn on the main power. Close the external switch connected between S1 and COM. The motor should start rotating in the forward direction. Open the switch, and the motor will stop according to the set deceleration time.
Core Features & Advantages
- Precise & Powerful Control: Employs advanced sensorless vector control (SVC) technology to achieve smooth, precise motor control, providing up to 150% starting torque at just 0.5Hz for demanding low-speed high-torque applications.
- Robust Overload Capacity: Designed for general-purpose (G-type) loads, this 7.5HP VFD can withstand 150% of the rated current for 60 seconds and 180% for 3 seconds, easily handling tough industrial loads.
- Highly Integrated Control Functions: Features a built-in PLC, multi-speed operation, and VFD with PID control, allowing engineers to implement complex automation sequences without an external controller.
- Comprehensive System Protection: Provides multiple protection functions, including overcurrent, overvoltage, undervoltage, overheat, overload, and output phase loss, with power-on motor short-circuit detection to ensure safe and reliable operation.
- Flexible I/O Configuration: Standard on this three-phase 220V VFD are 7 digital inputs (including one high-speed pulse), 2 analog inputs, 2 relay outputs, and 2 analog outputs, offering powerful expansion capabilities, including Modbus RS485 VFD communication.
- Compact Power Density:Â Optimized structural design delivers 5.5kW of power in a compact chassis (approx. 3.9 kg), effectively saving installation space in crowded control panels.
File | Size | Action |
|---|---|---|
VFD Selection Guide.pdf | 4.2MB | |
VFD EV510A User Manual.pdf | 1.8MB |
