GE IC693CHS391 10-Slot Baseplate: Specifications Guide
The GE IC693CHS391 is a 10-slot modular CPU baseplate from the Series 90-30 family by GE Fanuc. This baseplate serves as the foundation for building a compact PLC system, hosting the CPU, I/O modules, and power supply. Designed for panel mounting, it provides a local electronic backplane to power attached modules. In this product review, we explore its key specifications and practical applications for industrial automation.
GE IC693CHS391 Key Specifications
The IC693CHS391 operates at 5 Volts DC with a current rating of 420 milliamperes. It offers ten slots in total: one dedicated CPU slot (slot 1), nine I/O slots (slots 2-10), and one unnumbered slot for the power supply on the left side. An expansion port with a 25-pin female connector sits on the right side for connecting additional baseplates. The default rack address is number 0, which users can modify through programming software. The system permits only one CPU baseplate per system; other baseplates must be expansion or remote I/O types.
Slot Assignment and Expansion Capabilities
Engineers install the CPU or a specialty module like a FIP Bus Remote I/O scanner in slot 1. Slots 2 through 10 accommodate standard I/O or option modules. The power supply module occupies the leftmost slot, which does not count toward the ten slots, allowing maximum I/O density. For system expansion, the rightmost expansion port accepts a 25-pin female connector. Depending on the CPU model, the IC693CHS391 supports up to four or seven expansion baseplates. For remote baseplate connections, the cable length must remain under 700 feet.
Mounting and Environmental Considerations
The baseplate supports panel mounting only. Technicians fasten it using screws and washers through the provided mounting holes. The IC693CHS391 features an open enclosure, making installation and replacement straightforward. To ensure reliable operation, keep the baseplate away from water splashes, dust, dirt, and harmful chemicals. Maintain the environmental temperature within the specified range as per the Series 90-30 guidelines.
Practical Value for Automation Systems
This modular CPU baseplate offers a compact and flexible platform for Series 90-30 PLCs. Its ten-slot layout accommodates a variety of I/O and specialty modules, while the unnumbered power supply slot optimizes space. The expansion port enables system scalability without additional complexity. Although GE has discontinued this product, it remains available as new old stock or refurbished units for legacy system maintenance. For engineers and procurement professionals seeking a reliable CPU baseplate for legacy GE Fanuc systems, the IC693CHS391 remains a viable option. Its straightforward installation, slot flexibility, and expansion support make it a practical component for maintaining or upgrading Series 90-30 installations.