Overview
Manuals
Diagnostics & Protection
Installation & Integration
Field-Exciter
Features:
- Auto-Scaling Current Measurement: The circuit scales automatically according to the specific rated field current of the connected motor.
- Dual-Phase Phase Adaptability: Designed to handle both 3-phase and single-phase configurations via terminal shorting.
- Intelligent Drive-Level Communication: Fully supervised, directed, and monitored by the primary armature converter through drive-to-drive communication.
The ABB DCF803-0035 is an industrial half-controlled three-phase field converter engineered for versatile motor excitation tasks. It belongs to a standardized hardware family, sharing the exact same control board platform as other exciters in its class to maximize component commonality and ease maintenance. Within its power architecture, the 24 VDC auxiliary input features a 10 ms buffering period to successfully mitigate sudden line voltage sags.
During field wiring and mounting, the ABB DCF803-0035 enforces strict electrical discipline for installation integrity. The hardware mandates unyielding limits on cable sizing paired with specific torque value.
The DCF803-0035 ABB Highly Reliable Half Controlled Three-phase Field Converter may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Abb DCF803-0035 Highly Reliable Half Controlled Three-phase Field Converter manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The ABB DCF803-0035 field converter utilizes its onboard SDCS-FEX-4 board to deliver real-time system monitoring and fast fault localization. Through continuous drive-to-drive communication with the armature converter, it immediately detects phase loss, synchronization errors, and frequency deviations. For robust hardware safety, the module features an auto-scaling current circuit that guards against overcurrent, while a 10 ms auxiliary power buffering bridges sudden voltage sags to prevent unexpected system downtime.
The ABB DCF803-0035 field converter ensures seamless industrial integration by supporting both three-phase and single-phase configurations via simple terminal shorting between U and W. It features a compact footprint and mounts efficiently inside standard drive cabinets, utilizing dedicated drive-to-drive communication channels for immediate, automatic setup and complete management by the main armature converter. For a safe electrical deployment, installers must secure the heavy-duty terminals with a precise tightening torque of 1.5 - 1.7 Nm on 6 mm² (AWG 10) cabling and connect an mandatory external line reactor to guarantee full system compliance and stable operation.
DCF803-0035 is the 35 A external field-exciter execution documented for ABB DC drives. Commissioning must match the selected single- or three-phase connection and the applicable DCSLink parameters.
