Product Overview

The 131F6658 (131F6658) is a high-capacity VLT AQUA Drive FC 202, specifically engineered to provide maximum energy efficiency for large-scale water and wastewater applications. Delivering 75 kW of power, this frequency converter is designed for the rigorous demands of desalination plants, water distribution networks, and industrial wastewater treatment facilities. The 131F6658 features advanced software functions such as "Smart Logic Control" and "Auto Tuning of PI Controllers," which optimize pump performance and reduce water hammer effects. By precisely matching motor speed to system demand, it significantly lowers operational costs and extends the lifecycle of pumps and hydraulic assets.

Suffix Breakdown

The extensive configuration code FC-202P75KT4E20H2XGXXXXSXXXXAXBXCXXXXDX defines the specific hardware and software capabilities of this unit:

• FC-202: Advanced version of the VLT AQUA Drive series.

• P75K: High-power output rating of 75 kW.

• T4: Three-phase mains voltage input (380 - 480 VAC).

• E20: IP20/Chassis enclosure rating, designed for mounting within larger control panels or motor control centers (MCC).

• H2: Integrated RFI-Filter, Class A2, ensuring compliance with EN/IEC 61800-3 for electromagnetic compatibility.

• X (Brake): No brake chopper installed.

• G: Includes the Graphical Local Control Panel (LCP-102) for advanced diagnostics and easy setup.

• SXXXX: Standard software version without custom modifications.

• AX/BX/CX/DX: Indicates no additional fieldbus, application, motion control, or DC power backup options are installed.

Technical Specifications

Technical FAQs

How does the "AQUA" specific software benefit pump systems?

The FC 202 includes a "Pipe Fill Mode" that prevents water hammer by gradually filling pipes at a controlled rate. It also features dry-pump protection and end-of-curve detection to prevent hardware damage when the pump operates outside its efficient range.

Is this 75 kW drive compatible with existing SCADA systems?

Yes. While this specific unit (AX) does not have optional fieldbus modules installed, the base unit supports standard Modbus RTU. Additional modules for Profibus, PROFINET, or EtherNet/IP can be integrated into the modular slots if future communication upgrades are required.

What are the thermal management requirements for an IP20 75 kW unit?

Since this is an IP20/Chassis unit, it must be installed in a cabinet with high-volume forced air ventilation. At 75 kW, the drive generates significant heat; ensure the cabinet's cooling system can handle the heat dissipation rated for this power size to avoid thermal tripping.

Engineering & Installation Guide

• Lifting and Mounting: Due to the 63.0 kg shipping weight, use mechanical lifting equipment for installation. The drive must be mounted on a flat, non-combustible vertical surface within the control cabinet. Ensure the mounting structure can support the static weight plus the dynamic forces during operation.

• Harmonic Mitigation: Although the H2 RFI filter handles high-frequency interference, 75 kW drives can introduce low-frequency harmonics into the plant grid. In sensitive water treatment facilities, verify if additional external DC link reactors or active filters are needed to comply with local utility harmonic standards (e.g., IEEE 519).

• Cable Management: Use shielded motor cables and maintain maximum separation between the power input, motor output, and low-voltage control wiring. For a 75 kW drive, ensure the motor cable shield is terminated with a high-frequency low-impedance clamp at the drive's decoupling plate to prevent interference with sensitive flowmeters or pressure sensors.