The GE 531X301DCCAFG2 (functionally known as the DCC board) is a Digital Drive Control Board manufactured by General Electric. It is designed for use in GE DC drives, innovation series drives, and exciter control panels, such as the DC300, DC2000, and Siltron drive families.
Serving as a central microprocessor-based processing card, the 531X301DCCAFG2 executes speed control algorithms, current loops, firing pulse generation for SCR bridges, and system communication routing.
Technical Specifications
| Parameter | Specification |
| Manufacturer | General Electric (GE Power / GE Vernova) |
| Part Number | 531X301DCCAFG2 |
| Board Acronym | DCC (Drive Control Card) |
| System Compatibility | GE DC300, DC2000, Siltron, & Innovation Series Drives |
| Processor Architecture | Microprocessor & ASIC-based closed-loop control |
| Nominal Power Requirements | +5V DC, ±15V DC, +24V DC (via power distribution board) |
| Program Storage | EPROM / EEPROM socketed firmware chips |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
| Form Factor | Drive Cabinet Subrack Plug-in Printed Circuit Board |
Core Features & Operating Capabilities
- Closed-Loop Drive Control: Performs real-time motor speed, torque, and current loop feedback calculations for industrial DC drives and synchronous motor excitation systems.
- Socketed Firmware Design: Features onboard sockets for removable EPROM/EEPROM chips, allowing drive configuration parameters and operating software to be maintained during board service.
- Multifunction Card Connectors: Equipped with multiple pin headers and card-edge connectors to interface with terminal boards, power supply cards, and driver bridge boards.
- Hardware Jumpers & Switches: Includes configurable jumper blocks for selecting feedback types (tachometer, armature voltage, encoder) and signal calibration ranges.
- Diagnostic LED Indicators: Onboard status LEDs display board power integrity, CPU activity, and fault states to streamline local troubleshooting.
Related & Associated GE Drive Hardware
- 531X300CCHA — Core Communications Board for GE drive subracks.
- 531X305NTB — Terminal Board for field I/O connections.
- DS200SDCCG1A — Drive Control Card for next-generation GE DC2000 / Innovation drives.
- DS200DSPCH1A — Digital Signal Processor Drive Control Board.
