Danfoss FCD322PT4P66STR1D0F00T52C0

Technical Dossier

Product Details And Specifications

Danfoss FCD 322 Series Technical Notes

The Danfoss FCD 322 series is a decentralized variable frequency drive (VFD) platform engineered for motor control in distributed automation architectures. Designed for installation directly at the motor or in the field cabinet, the FCD 322 eliminates long motor cable runs and reduces panel space requirements. The series has achieved significant installed base across global heavy industry sectors including chemical processing plants, offshore oil & gas platforms, refineries, water treatment facilities, and pulp & paper mills. Its IP66/IP67-rated enclosure variants allow direct field mounting in wash-down and outdoor environments, a critical requirement for petrochemical and food-grade processing lines. The FCD 322 operates on 3-phase 380–480 V AC input and covers a power range from 0.25 kW to 7.5 kW, making it the standard decentralized drive choice for pump, fan, and conveyor motor control in distributed plant topologies.

The Evolution of FCD 322 Architecture

The FCD 322 was introduced as part of Danfoss's Drives division decentralized product strategy, succeeding earlier FCD 300 platform variants. The core architecture is built around the VLT® drive technology stack, sharing firmware and parameter structure with the centralized VLT® AutomationDrive FC 302 series, which significantly reduces engineering overhead when mixing centralized and decentralized topologies in a single plant. Early FCD 322 units shipped with RS-485 Modbus RTU as the primary fieldbus interface. Subsequent hardware revisions introduced native PROFIBUS DP and DeviceNet option card slots, followed by EtherNet/IP and PROFINET IO support via the MCO 305 option module. The FCD 322 enclosure design evolved from IP55 (panel-mount) to IP66 and IP67 (field-mount) variants, with the suffix encoding in the order code (e.g., STR1 = stainless steel enclosure, D0F00 = no brake chopper, no RFI filter) providing precise configuration identification. Units manufactured after 2015 incorporate updated IGBT modules with improved thermal derating curves, extending operational life in high-ambient-temperature installations. The FCD 322 series entered the mature/end-of-active-production phase; Danfoss has transitioned new designs toward the VLT® Decentral Drive FCD 302 and the VACON® NXP platform. However, the FCD 322 remains in active field service at thousands of installations globally, and long-term spare parts and repair support remains commercially critical.

FCD 322 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced models within the FCD 322 series. Models are classified by power rating and enclosure/option configuration.

FCD322PT4P66STR1D0F00T52C0: 4.0 kW, 3×380–480 V, IP66, stainless enclosure, no brake, no RFI
FCD322PT2P26STR1D0F00T52C0: 2.2 kW, 3×380–480 V, IP66, stainless enclosure, standard config
FCD322PT1P56STR1D0F00T52C0: 1.5 kW, 3×380–480 V, IP66, stainless enclosure, standard config
FCD322PT0P756STR1D0F00T52C0: 0.75 kW, 3×380–480 V, IP66, stainless enclosure, standard config
FCD322PT5P56STR1D0F00T52C0: 5.5 kW, 3×380–480 V, IP66, stainless enclosure, standard config
FCD322PT7P56STR1D0F00T52C0: 7.5 kW, 3×380–480 V, IP66, stainless enclosure, standard config
FCD322PT4P66G1R0D0F00T52C0: 4.0 kW, IP66, grey enclosure, no brake chopper, no RFI filter
FCD322PT2P26G1R0D0F00T52C0: 2.2 kW, IP66, grey enclosure, standard field-mount config
FCD322PT1P56G1R0D0F00T52C0: 1.5 kW, IP66, grey enclosure, standard field-mount config
FCD322PT0P756G1R0D0F00T52C0: 0.75 kW, IP66, grey enclosure, standard field-mount config
FCD322PT5P56G1R0D0F00T52C0: 5.5 kW, IP66, grey enclosure, standard field-mount config
FCD322PT7P56G1R0D0F00T52C0: 7.5 kW, IP66, grey enclosure, standard field-mount config
FCD322PT4P65STR1D0F00T52C0: 4.0 kW, IP55, stainless enclosure, panel-mount variant
FCD322PT2P25STR1D0F00T52C0: 2.2 kW, IP55, stainless enclosure, panel-mount variant
FCD322PT1P55STR1D0F00T52C0: 1.5 kW, IP55, stainless enclosure, panel-mount variant
FCD322PT5P55STR1D0F00T52C0: 5.5 kW, IP55, stainless enclosure, panel-mount variant
FCD322PT7P55STR1D0F00T52C0: 7.5 kW, IP55, stainless enclosure, panel-mount variant