OULU EV510A-3500G-T4 Fan & Pump Frequency Converter for Industrial Control 640A 350kW

The OULU EV510A-3500G-T4 Fan & Pump Frequency Converter is engineered for robust industrial control applications, offering precise speed and torque regulation for motors up to 350kW. This high-performance VFD excels in demanding environments, providing a powerful and efficient solution for various industrial machinery. Key advantages include its advanced vector control capabilities, enabling superior dynamic response and precise motor management, alongside a compact design and enhanced carrying capacity compared to previous generations. The EV510A series is built on Oulu Electric's extensive R&D in industrial automation, ensuring reliability and stability across a wide operational spectrum.

| Parameter                 | Specification                                |

| :------------------------ | :------------------------------------------- |

| Model                     | EV510A-3500G-T4                              |

| Rated Power               | 350kW                                        |

| Rated Current             | 640A                                         |

| Input Voltage             | 380V/400V ±15% (Three Phase)                 |

| Input Frequency Range     | 47~63Hz                                      |

| Output Voltage Range      | 0~Rated Input Voltage                        |

| Output Frequency Range    | 0~400Hz                                      |

| Control Mode              | Open-loop Vector Control (SVC), V/F Control  |

| Starting Torque (SVC)     | 150% at 0.5Hz                                |

| Speed Range               | 1:100 (SVC)                                  |

| Steady Speed Precision    | ±0.5% (SVC)                                  |

| Carrier Frequency         | 0.8KHz~12KHz (Automatically adjustable)      |

| Programmable Digital Input | 7 Inputs                                     |

| Programmable Analog Input | 3 Inputs (0-10V, 0-20mA, -10-10V)            |

| Relay Output              | 2 Outputs                                    |

| Analog Output             | 2 Outputs (0/4~20mA or 0~10V)                |

| Protection Features       | Overcurrent, Overvoltage, Undervoltage, Overheat, Overload, Phase Loss, Motor Short-Circuit Detection |

Core Features & Market Positioning

The OULU EV510A-3500G-T4 distinguishes itself through its high-performance vector control, offering precise torque control and rapid response crucial for complex automation systems. Its design prioritizes enhanced carrying capacity and a more compact structure, making it a competitive option in the mid-to-high-end VFD market. Oulu Electric, with its experienced R&D team and intellectual property in industrial automation, positions the EV510A series as a reliable and stable solution, backed by comprehensive after-sales services including installation, commissioning, and technical support. This focus on advanced technology and dedicated support differentiates it from basic V/F control drives.

Key Application Scenarios

This frequency converter is ideally suited for driving a wide array of industrial equipment that requires precise speed and torque management. Common applications include fans, pumps, compressors, conveyors, machine tools, packaging machinery, and textile equipment. Its robust performance and protection features make it suitable for loads such as material transfer machines, elevators, and even specialized applications like offshore oil platforms and paper machines. The EV510A-3500G-T4 is particularly effective in automated production lines where consistent motor performance and energy efficiency are paramount.

Practical System Integration Guidance

Integrating the OULU EV510A-3500G-T4 into existing systems is facilitated by its flexible control input options. For speed control, analog input terminals (AI1, AI2) can be utilized with potentiometers, connecting the slider to the analog input and the fixed ends to +10V and GND. For basic start/stop operations, digital input terminals such as S1 (forward) and S2 (reverse) can be wired to external control signals like buttons or relay contacts, connecting to the COM terminal for functionality. When configuring operation commands, setting parameter P0-02 to "1" enables terminal command control, while parameters P4-00 and P4-01 allow for the selection of forward and reverse operation functions for specific terminals, respectively. The unit also supports communication settings for advanced integration.

Operation and Risk Mitigation

Operating the OULU EV510A-3500G-T4 involves straightforward control via its panel, which includes a run button, stop/reset button, and parameter adjustment interface. Critical fault conditions like overcurrent, overvoltage, and undervoltage are protected against by the drive's built-in safety mechanisms. Troubleshooting typically begins by observing indicator lights for initial fault diagnosis, followed by checking fault records, external wiring integrity, and appropriate parameter adjustments. For instance, an overcurrent fault might stem from motor stalling or overload, requiring load adjustment or parameter tuning, while an undervoltage fault necessitates checking the input power supply. In persistent cases, contacting after-sales service is recommended.

Scalability & Long-Term Value

The EV510A series, as an upgraded version of the EV510 series, offers improved performance and a more compact structure. While specific upgrade paths are not detailed, Oulu Electric's commitment to R&D and comprehensive after-sales services, including technology upgrades and remote data analysis, suggests a focus on long-term customer value and support. The inclusion of multiple analog and digital inputs/outputs, along with communication options, ensures compatibility with various automation platforms and the potential for integration with Industrial Internet of Things (IIoT) solutions for enhanced monitoring and data mining.

Frequently Asked Questions

1. What are the primary advantages of the OULU EV510A-3500G-T4 frequency converter?

This converter offers advanced vector control for precise motor speed and torque regulation. It boasts a compact design with enhanced carrying capacity compared to older models. The unit provides robust protection features against common electrical faults.

Its high performance is backed by Oulu Electric's strong R&D and intellectual property in automation technology. This ensures reliable and stable operation across various industrial applications.

The comprehensive after-sales support, including installation and maintenance, adds significant long-term value for users.

2. How do I perform basic wiring for motor control on the EV510A-3500G-T4?

For start/stop control, connect external signals to digital input terminals like S1 and COM for forward operation. Use S2 and COM for reverse operation.

Ensure parameter P0-02 is set to "1" to enable terminal command control. Parameters P4-00 and P4-01 configure the specific functions for your chosen terminals.

Always verify wiring against the user manual to prevent errors and ensure safe operation.

3. What are the key technical specifications of the EV510A-3500G-T4?

It has a rated power of 350kW and a rated current of 640A. The input voltage is 380V/400V three-phase, with a frequency range of 47-63Hz.

The output frequency range is 0-400Hz. It supports Open-loop Vector Control (SVC) and V/F control modes.

It includes 7 digital inputs, 3 analog inputs, 2 relay outputs, and 2 analog outputs for versatile integration.

4. What types of loads is the EV510A-3500G-T4 suitable for?

This converter is ideal for high-power industrial applications requiring precise motor control. This includes fans, pumps, compressors, and conveyors.

It is also well-suited for complex machinery like machine tools, packaging equipment, and textile machinery. Applications such as material transfer and elevators can also benefit.

Its robust design makes it applicable for demanding industrial sectors, including food processing, paper manufacturing, and even offshore oil platforms.

5. How can I adjust the speed of a motor connected to the EV510A-3500G-T4?

Speed can be adjusted using analog input terminals, such as AI1, with a potentiometer. Connect the potentiometer's slider to the AI terminal and its fixed ends to +10V and GND.

Alternatively, speed can be set via digital commands, pulse inputs, or communication settings. The drive supports multiple methods for flexible control.

Parameter settings on the operation panel also allow for precise speed adjustments and programming of multi-stage speeds.

6. What protection features are integrated into the EV510A-3500G-T4?

The converter is equipped with comprehensive protection against overcurrent, overvoltage, and undervoltage conditions. It also provides overload and overheat protection.

Additional safety features include input/output phase loss protection and motor short-circuit detection upon power-on.

These features ensure the longevity of the drive and connected motor, mitigating damage from electrical anomalies.

7. Can the EV510A-3500G-T4 be used in systems requiring torque control?

Yes, the EV510A-3500G-T4 supports open-loop vector control (SVC), which allows for precise torque control. This is essential for applications needing dynamic torque response.

While this model specifies SVC, other EV510 series variants might offer closed-loop vector control with PG cards for even higher precision if needed.

Accurate torque control is vital in applications like winding machines, extruders, and automated assembly lines.

8. How does the EV510A-3500G-T4 handle different operational commands?

Operational commands can be managed through the integrated control panel buttons, such as the RUN and STOP/RESET buttons.

Alternatively, commands can be received via digital inputs from external switches or controllers, allowing for remote or automated operation.

The converter also supports communication protocols, enabling integration with SCADA systems or PLCs for sophisticated command management.

9. What are common troubleshooting steps for faults on the EV510A-3500G-T4?

Start by observing the display indicators to identify the fault code or type. Check the fault records menu for historical data on previous errors.

Inspect all external wiring for loose connections, short circuits, or incorrect routing. Ensure the motor and load are within the drive's specified limits.

Consult the user manual for specific fault code meanings and recommended corrective actions, such as parameter adjustments or environmental checks.

10. How does the EV510A-3500G-T4 compare to older OULU EV510 series models?

The EV510A series is an upgraded version of the EV510 series, featuring a more compact structure and improved carrying capacity. This means better performance within a smaller footprint.

It offers enhanced stability and potentially more advanced control algorithms, such as improved vector control for better dynamic response.

Oulu Electric consistently develops its products, so the EV510A represents a step forward in their VFD technology offerings.