GE Fanuc IC695CHS012 RX3i Backplane

The GE Fanuc IC695CHS012 is a 12‑slot universal backplane (chassis) designed for the PACSystems RX3i controller platform. This backplane serves as the mechanical and electrical foundation for mounting the CPU, power supply, and various I/O modules, providing a high‑speed data bus (backplane) for communication between modules. The IC695CHS012 is compatible with all RX3i modules, including discrete, analog, motion, and communication modules, making it a versatile building block for scalable control systems.

The backplane features a robust, industrial‑grade construction with high‑density connectors that ensure reliable signal integrity even in high‑vibration environments. It provides distributed power to each slot from a single power supply module, simplifying wiring and reducing installation time. The rack also includes a built‑in grounding bar for easy system grounding.

Technical Specifications

• Number of slots: 12 (universal, accepts any RX3i module)

• Backplane data rate: 1 Gbit/s (serial backplane)

• Power bus: 5 V DC, 3.3 V DC, 24 V DC (for field power, switched)

• Total current capacity: 5 V @ 60 A, 3.3 V @ 60 A (depending on power supply module)

• Slots numbering: 0 to 11 (slot 0 reserved for CPU or power supply, depending on configuration)

• Dimensions: 482.6 mm (19 inch) width, 266.7 mm height, 88.9 mm depth

• Mounting: Standard 19‑inch rack mount (horizontal) or panel mount

• Operating temperature: 0°C to +60°C

• Humidity: 5% to 95% (non‑condensing)

• Certifications: CE, UL, RoHS

Key Design Features

• Universal slot architecture: Any type of module (CPU, communication, I/O) can be placed in any slot, providing maximum flexibility for system layout.

• Hot‑swappable modules: Supports module insertion/removal without powering down the entire system (with appropriate power supply and CPU support).

• Integrated EMI shielding: The metal chassis provides effective electromagnetic interference suppression.

• Keyed connectors: Prevents incorrect module insertion, reducing assembly errors.

• Status LED: Indicates backplane power presence and activity.

Application Context

The IC695CHS012 is used in industrial control cabinets for a wide range of industries, including water/wastewater treatment, food processing, automotive, and material handling. It can host a single CPU (e.g., IC695CPU315) along with multiple I/O modules to build a complete control system for up to several hundred I/O points. The backplane supports redundant power supply configurations for critical applications.

Installation Guidance

Mount the backplane securely in a standard 19‑inch rack using four mounting screws. Ensure adequate airflow around the rack; maintain at least 50 mm clearance above and below. Connect the power supply module to the designated slot (usually slot 0 or slot 1, depending on the power supply model). Wire the field power (24 V DC) to the terminal blocks on the power supply or via separate terminals. Ground the backplane using the provided grounding stud.

Compliance and Reliability

The backplane is manufactured under ISO 9001‑certified processes and meets the requirements of IEC 61131‑2 for programmable controllers. It has been tested for shock and vibration per IEC 60068‑2‑6 and 2‑27.

Conclusion

The GE Fanuc IC695CHS012 12‑slot backplane is a robust and flexible foundation for building PACSystems RX3i‑based automation solutions. Its high‑speed bus, universal slot design, and sturdy construction ensure reliable operation and easy scalability for diverse industrial control applications.