EV510A-4500G-T4: High-Performance Three Phase Vector VFD | 450kW, 380V
Why Choose This 450 kW (603HP) 380V Three Phase Vector VFD?
Choosing the right drive is crucial for performance and reliability. This specific 450 kW (603HP) VFD is the ideal solution when your 3-phase 380V application needs massive power and torque without sacrificing advanced control.
- Precision for Heavy Industrial Motors: This model provides advanced vector control, essential for industrial applications needing stable speed under heavy, varying loads, high starting torque (like industrial crushers or mills), and smoother motor performance.
- Energy and Cost Efficiency: By precisely matching the motor’s speed to the application’s demand, this VFD significantly reduces energy consumption on your 450kW (603HP) motor. The integrated features, like the built-in PLC and PID controller, can also eliminate the need for external control components.
- Increased Equipment Lifespan: The soft-start and stop capabilities (S-curve ACC/DEC) reduce mechanical stress on motors, gearboxes, and belts, prolonging the life of your heavy-duty 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, large-scale automated systems.
Typical Application Fields
Large Fans and Pumps
Efficiently controls large industrial fan VFD or water pump VFD systems for industrial processing or water treatment.
Large-Scale Material Handling
Drives heavy-duty, high-torque conveyor belt VFD systems in mining or shipping ports.
Mining & Aggregates
Ideal as a crusher VFD for primary jaw crushers or large grinding mills.
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) | 720 x 382 x 920 mm |
|---|---|
Installation Size (A x B) | 460 (230+230 3 holes in total) x 895 mm |
Installation Hole | φ13 |
Weight | 155 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 simple loads like fans. Sensorless Vector Control (SVC) is a more advanced algorithm that provides precise control over the motor’s torque without an encoder. It delivers high starting torque at very low speeds (150% at 0.5Hz) and better speed stability, making it ideal for machinery and conveyors.
2. How do I select the right VFD model for my motor?
The selection of a VFD primarily depends on your motor’s rated power, voltage, and application. For the model EV510A-4500G-T4, “4500” indicates it’s for a 450kW motor, “G” stands for general-purpose load (constant torque), and “T4” signifies a three-phase 380V input. Always ensure the VFD’s rated current (820.0A) is greater than or equal to your 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.
4. What happens if there is a momentary power outage?
This series of inverters features an “Instantaneous stop not stop” function (ride-through). In the event of a brief power grid voltage drop, 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: 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 cabinet vertically on a sturdy, non-flammable surface. Ensure there is sufficient clearance around the unit for proper ventilation and heat dissipation as specified in the manual.
Step 2: Main Circuit Wiring
- Connect the three-phase 380V AC power lines to the inverter’s input terminalsÂ
R,ÂS, andÂT(L1/L2/L3). - Connect the three wires of the three-phase asynchronous motor to the inverter’s output terminalsÂ
U,ÂV, andÂW. - Securely connect the ground wire to the inverter’sÂ
PE(Protective Earth) terminal. - Connect the recommended external braking resistor(s) to theÂ
(+)Â andÂPBterminals.
Step 3: Control Circuit Wiring (for Basic Start/Stop)
- Connect one end of an external switch (or button) to the digital input terminalÂ
S1. - Connect the other end of the switch to the common terminalÂ
COM. - Set parameterÂ
P0-02(Command source selection) to “1” (Terminal command channel). - Set parameterÂ
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 450kW)P1-02: Motor Rated Voltage (set to 380V)P1-03: Motor Rated CurrentP1-04: Motor Rated FrequencyP1-05: Motor Rated Speed
- For optimal vector control performance, perform a motor auto-tune. Set parameterÂ
P1-37(Motor auto-tuning method selection) 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
- Massive Power with Precision Control: Employs advanced sensorless vector control (SVC) technology to precisely manage 450kW (603HP) motors, providing up to 150% starting torque at just 0.5Hz for low-speed, high-torque starts on the heaviest loads.
- Extreme Overload Capacity: Designed for G-type (General) loads, this 603HP VFD can withstand 150% of its 820A rated current for 60 seconds and 180% for 3 seconds, handling the toughest industrial surges.
- Highly Integrated Control Functions: Features a built-in PLC for 16-stage speed running, and a VFD with PID control, allowing engineers to implement complex automation sequences for large industrial machinery 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 380V 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.
- Built-in Braking Unit: This high-power model includes a standard built-in braking unit, ready for external resistors to manage high-inertia loads and rapid deceleration.
File | Size | Action |
|---|---|---|
VFD Selection Guide.pdf | 4.2MB | |
VFD EV510A User Manual.pdf | 1.8MB |
