Danfoss 195N2195 VLT2930PT4B20 Frequency Converter

Product Overview

The Danfoss 195N2195 (VLT2930PT4B20) is a high-reliability frequency converter from the classic VLT 2900 series, engineered for precise motor speed control in demanding industrial environments. This drive is particularly suited for applications requiring consistent torque and smooth acceleration, such as centrifugal pumps, conveyor belts, and industrial mixing equipment. By managing the electrical frequency and voltage supplied to the motor, the 195N2195 significantly reduces mechanical stress on gearboxes and couplings while optimizing power consumption, which is critical for extending the operational lifespan of motor-driven assets in high-duty cycle manufacturing processes.

Technical Configuration

The 195N2195 features a proven hardware design that prioritizes operational stability and ease of integration into existing electrical panels.

• Hardware Architecture: Engineered for standard 380 - 480 VAC three-phase power grids, this unit is housed in a compact IP20-rated enclosure. Its form factor allows for efficient side-by-side mounting, making it an excellent choice for control cabinet retrofits where physical space is limited.
• Performance Control: Utilizing reliable VVC+ (Voltage Vector Control) technology, the drive delivers stable torque and high starting performance across various load conditions. It includes protective functions against phase loss, ground faults, and thermal overload, ensuring the safety of both the drive and the connected motor.
• System Integration: The unit is designed for straightforward commissioning, with a clear parameter interface that allows for rapid configuration of acceleration/deceleration ramps and speed setpoints, facilitating quick deployment in time-sensitive maintenance scenarios.

Technical Specifications

FAQs

Is the VLT 2900 series still supported for current industrial applications?

The VLT 2900 series is a long-standing, reliable legacy platform. While newer VLT series offer expanded connectivity options, the 2900 series remains highly effective for standalone speed control applications where network integration is not a requirement and rugged, proven performance is preferred.

What is the minimum clearance required for installation?

To ensure proper convective cooling, install the drive in a vertical position with at least 100 mm of unobstructed space above and below the housing. Avoid mounting near high-heat components like contactors or transformers.

How should I manage regenerative energy with this drive?

The "B" in the model number typically indicates an integrated brake chopper. For applications with high inertia that require rapid deceleration, you can connect an external braking resistor to the dedicated terminals to dissipate excess energy safely.

Engineering Guidelines and Best Practices

• EMC Compliance: To ensure compliance with electromagnetic compatibility standards and to prevent electrical noise from interfering with nearby sensitive sensors, utilize shielded motor cables. Terminate the cable shield at both the drive housing and the motor junction box using 360-degree metallic clamps to ensure a low-impedance ground path.
• Maintenance Safety: Before performing any maintenance or cable inspection, isolate the drive from the main power supply. Always allow sufficient time for the DC-link capacitor bank to discharge—usually indicated by the status LEDs turning off—to eliminate the risk of residual voltage shock.
• Thermal Monitoring: If the drive is installed in a dense cabinet, monitor the cabinet temperature closely. If the ambient temperature exceeds 45 deg C, additional forced-air ventilation or cabinet cooling may be required to prevent the drive from derating its power output.