Description
The ABB SDCS-CON-4 is the core processing and control board for DCS500 and DCS600 series DC drives. It manages all drive-level logic, including speed and torque control, firing angle calculation for the thyristor bridge, and interface management for peripheral I/O and communication modules.
Product Parameters
- Part Number: 3ADT313900R1501
- Model Code: SDCS-CON-4
- Application: DCS500 / DCS600 DC Drives
- Microprocessor: 16-bit high-speed control processor
- Power Supply: Typically fed via SDCS-POW-1 board
- Firmware: Requires system-specific application software
Product Specifications
- I/O Interface: Supports analog and digital feedback signals
- Expansion: Dedicated slot for SDCS-COM-8 or SDCS-AMC communication boards
- Encoder Support: Integrated interface for pulse encoders
- Protection: Coated for resistance against industrial contaminants
- Mounting: Mounted directly to the drive electronics frame


Application Areas
- Industrial DC motor speed and torque regulation
- Heavy-duty steel mill and rolling line drives
- Mining hoist and conveyor control systems
- Paper and pulp machine drive sections
- Large-scale plastic extrusion lines
Product Q&A
Q: Is the SDCS-CON-4 interchangeable with the SDCS-CON-2? A: No, while they serve similar roles, the SDCS-CON-4 features updated processing capabilities and is specific to the DCS500/600 hardware architecture.
Q: Does this board include the firmware upon purchase? A: Replacement boards are often blank; the specific drive firmware must be loaded or the EPROM chips must be transferred from the old board.
Q: What is the significance of the 3ADT313900R1501 part number? A: This is the definitive global ID for the SDCS-CON-4 assembly used for ordering and hardware compatibility checks.

