Product Overview

The Danfoss 134F2978 (FC-360H5K5T4E20H2BXCDXXSXXXXAXBX) is a high-performance VLT AutomationDrive from the FC-360 series, designed specifically for demanding industrial motor control. With a high-overload rating and a 5.5 kW (7.5 HP) capacity, this drive is optimized for applications that require sustained starting torque and dynamic speed response, such as mixers, extruders, and conveyor systems. By providing precise frequency and voltage control, the 134F2978 improves system reliability, reduces energy consumption, and extends the operational life of connected motors and mechanical components.

Technical Configuration

The 134F2978 features a compact yet powerful architecture, incorporating advanced protection features for industrial resilience.

• High-Overload Performance: Engineered for "High Overload" (H) applications, the drive can handle the elevated current demands required for starting high-inertia loads without triggering nuisance faults.
• Integrated Regenerative Management: Includes a built-in brake chopper (B), which allows for the dissipation of energy during motor deceleration, and the Loadsharing (D) option, which enables the connection of multiple drives to a shared DC bus to improve total system energy efficiency.
• Harsh Environment Resilience: The internal electronics are conformal coated (C), providing a critical barrier against conductive dust, humidity, and corrosive atmospheric contaminants prevalent in manufacturing facilities.
• EMC Compliance: The integrated Class A2 RFI filter (H2) suppresses electromagnetic interference, ensuring reliable operation within complex industrial networks.

Technical Specifications

FAQs

What is the benefit of the Loadsharing (D) feature?

The Loadsharing option allows the DC buses of multiple drives to be interconnected. In a multi-motor system, if one motor is braking (generating power) while another is motoring (consuming power), the excess energy from the braking motor is transferred directly to the motoring drive. This reduces power draw from the grid and minimizes heat waste.

Can I run this drive without an LCP (Local Control Panel)?

Yes. This part number is supplied without an LCP or blind cover (X). It is designed to be fully controlled via fieldbus communications or external digital/analog I/O. If you require manual local control, an optional snap-on LCP can be installed.

Why is "Coated PCB" important for my application?

Conformal coating (C) is a thin protective layer applied to the printed circuit boards. It significantly increases the drive's resistance to corrosion and short-circuits caused by airborne particulates, such as dust or metal shavings, which are common in industrial production areas.

Engineering Guidelines and Best Practices

• Thermal Dissipation: To ensure the drive maintains its rated performance, allow at least 100 - 150 mm of clearance above and below the unit for heat dissipation. If the control panel is sealed, verify that the internal cooling system can maintain the ambient temperature within the manufacturer's specified limits.
• Shielding: Even with the H2 RFI filter, you must use shielded cables for the motor connection. Ensure the shield is bonded 360 degrees to both the drive chassis and the motor terminal box using conductive clamps to provide a low-impedance path for high-frequency noise.
• Commissioning: Always perform an Automatic Motor Adaptation (AMA) during startup. This procedure allows the drive to learn the specific characteristics of your connected motor, which is essential for optimized torque control and energy-saving performance.