Product Description:

The 134F2981 is an AC variable-frequency drive produced by Danfoss for the VLT FC 360 Automation Drives series. By modulating the output frequency and voltage supplied to an induction motor, the unit lets automation controllers match shaft speed to real-time process demands. This control can reduce energy use and mechanical stress in conveyors, pumps, and fans. The drive belongs to the VLT AutomationDrive FC product group and is intended for installation inside electrical cabinets where centralized motor control is required.

The inverter connects to industrial mains through a three-phase supply of 380–480 VAC, eliminating the need for external transformers on standard 400 V networks. Its output section is rated at 15 kW, which corresponds to a mechanical capacity of 20 HP. A built-in brake chopper safely dissipates regenerated energy during rapid deceleration, protecting the DC bus and upstream protective devices. The chassis has an IP20 chassis rating, so it must be mounted in an enclosure but remains accessible for wiring through the standard cable entries included with Adaptation A. The standard control card provides basic input, output, and parameter-handling functions without optional plug-ins.

The power stage supports high-overload operation, enabling short-term current surges for hard-starting loads without requiring an oversized drive. Electromagnetic compatibility is enhanced by the integrated RFI Class A2 filter, which limits conducted emissions on the supply conductors. When multiple drives share a common DC link, the factory-configured load-sharing mains option balances energy flow between units. Long-term reliability in humid or dusty panels is supported by a coated PCB, which protects sensitive traces from moisture and particulate contamination. The selected configuration does not include a display or fieldbus adaptation, keeping the interface focused on basic cabinet control for general-purpose automation tasks.