Yaskawa CSRA Series Modules: CSRA-CPS01KB & CSRA-CPS01KA YRC1000 Power Supply —

Technical Dossier

Product Details And Specifications

Yaskawa CSRA Series: Comprehensive Module Range and Technical Overview

The Yaskawa CSRA series constitutes the core control and I/O architecture of the YRC1000 robot controller platform, one of the most widely deployed robot control systems in global heavy industry. YRC1000-based systems are installed across automotive body-in-white lines, chemical processing facilities, nuclear fuel handling cells, and petroleum refinery automation loops. The CSRA backplane architecture supports deterministic real-time communication between the CPU, power supply, I/O, and fieldbus adapter modules, making it a reference-grade platform for safety-critical and continuous-process environments. The CSRA-CPS01KB and its predecessor CSRA-CPS01KA are the primary DC power distribution modules within this architecture, supplying regulated voltage rails to all downstream modules on the YRC1000 controller rack.

The Evolution of CSRA Architecture

The CSRA series was introduced alongside the YRC1000 controller, which Yaskawa launched as the successor to the DX200 platform. The DX200 used the JANCD-YCP02 and JANCD-YIF01 module families; the YRC1000 consolidated and miniaturized these functions into the CSRA form factor, reducing controller footprint by approximately 40% while maintaining backward compatibility with Yaskawa's FS100 and DX200 teach pendant interfaces via optional adapters.

The CSRA-CPS01KA was the initial production revision of the power supply module. It was superseded by the CSRA-CPS01KB, which introduced improved thermal management circuitry and extended MTBF ratings for high-ambient-temperature deployments (foundries, press shops). Both revisions share the same mechanical form factor and connector pinout, allowing direct substitution in the field without rack modification. The YRC1000 micro variant uses a separate, physically smaller power supply module (CSRA-CPS01BC) that is not cross-compatible with the standard YRC1000 rack.

As of 2026, the CSRA series is in its mature production phase. Yaskawa continues to manufacture YRC1000 controllers, but the earliest field-deployed units (2016–2018 vintage) are now entering their first major overhaul cycle, creating sustained demand for CSRA spare modules in the aftermarket.

CSRA Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified CSRA series module range for the YRC1000 and YRC1000 micro platforms. Modules are classified by functional category.

Power Supply Modules

• CSRA-CPS01KB: Primary DC power supply module for YRC1000 standard rack; current production revision with enhanced thermal management.
• CSRA-CPS01KA: Initial production revision of the YRC1000 rack power supply; direct mechanical and electrical substitute for CSRA-CPS01KB.
• CSRA-CPS01BC: Compact power supply module for YRC1000 micro controller variant; not interchangeable with standard rack units.

CPU / Main Control Modules

• CSRA-RBP01-1: Main CPU board for YRC1000; executes robot motion planning, trajectory interpolation, and safety monitoring.
• CSRA-RBP02-1: Secondary CPU board variant with expanded memory allocation for multi-robot coordination tasks.
• CSRA-YIF01-1E: System interface board; manages communication between the CPU and the teach pendant, external I/O, and fieldbus modules.

Digital I/O Modules

• CSRA-DIO01-1: 32-point digital I/O module (16 DI / 16 DO); 24 VDC sink/source compatible.
• CSRA-DIO02-1: 64-point digital I/O expansion module for high-density I/O applications.
• CSRA-DIO03-1: Safety-rated digital I/O module; compliant with IEC 62061 SIL 2 for safety gate and E-stop integration.

Analog I/O Modules

• CSRA-AIO01-1: 4-channel analog input / 2-channel analog output module; ±10 V and 4–20 mA signal ranges.

Communication / Fieldbus Adapter Modules

• CSRA-PRM01-1: PROFIBUS-DP master/slave adapter for integration with Siemens S7 and ABB DCS environments.
• CSRA-EIP01-1: EtherNet/IP adapter module; supports implicit and explicit messaging for Allen-Bradley PLC integration.
• CSRA-PRF01-1: PROFINET IO device adapter; supports RT and IRT communication classes.
• CSRA-CCL01-1: CC-Link master module for integration with Mitsubishi MELSEC networks.
• CSRA-DN01-1: DeviceNet adapter module for legacy automation network compatibility.

Servo / Drive Interface Modules

• CSRA-SVB01-1: Servo base board; interfaces the YRC1000 CPU with the SERVOPACK drive units for axis motion control.
• CSRA-SVB02-1: Extended servo base board supporting up to 8-axis coordinated motion configurations.

Sourcing Hard-to-Find & Obsolete CSRA Parts

DriveKNMS maintains a dedicated inventory program for CSRA series modules, with particular focus on early-revision units (CSRA-CPS01KA, CSRA-RBP01-1 Rev.A) that are no longer available through Yaskawa's standard distribution channel. Our sourcing network covers decommissioned automotive lines in Germany, Japan, and the United States, providing a consistent supply of tested, low-hour modules for facilities that cannot justify a full YRC1000 controller replacement.

For facilities operating mixed fleets of DX200 and YRC1000 controllers, DriveKNMS also stocks cross-platform interface components and can advise on migration paths that preserve existing tooling and wiring infrastructure. Long-term maintenance agreements (LTMAs) are available for facilities requiring guaranteed module availability over a 3–5 year horizon.

Quality Control for the CSRA Range

All CSRA modules processed by DriveKNMS undergo a structured test protocol before dispatch. Power supply modules (CSRA-CPS01KB, CSRA-CPS01KA, CSRA-CPS01BC) are bench-tested under full rated load for a minimum of 4 hours, with output voltage ripple and regulation measured against Yaskawa's published specifications. CPU and interface boards are validated using a YRC1000 reference rack with known-good peripheral modules, executing a standardized motion sequence and fieldbus communication test. Digital and analog I/O modules are point-tested across all channels using calibrated signal sources and loads. Modules exhibiting any deviation from specification are quarantined and not offered for sale. Each dispatched module is accompanied by a test report and is packaged in ESD-protective materials with desiccant.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.