Is Your Series 90-30 System Down Because the Baseplate Failed?
A failed baseplate can halt an entire production line. The IC693CHS391 from GE Fanuc is the 10-slot modular CPU baseplate that anchors Series 90-30 systems. It hosts the CPU, I/O modules, power supply, and expansion bus port. If your existing baseplate has failed, this discontinued unit may still be available through specialized suppliers like SpareTechPLC.
What Is the IC693CHS391?
The IC693CHS391 is a Series 90-30 component manufactured by GE Fanuc. This 10-slot modular CPU baseplate provides the physical and electrical foundation for a Series 90-30 PLC system. It houses the local electronic backplane that powers all attached modules. Only one CPU baseplate can be installed per system. The unit supports panel mounting and measures 420 milliamperes current draw at 5 Volts DC.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | GE Fanuc |
| Series | Series 90-30 |
| Part Number | IC693CHS391 |
| Description | Modular CPU baseplate |
| Current | 420 milliamperes |
| Voltage | 5 Volts DC |
| Number of Slots | Ten (10) |
| CPU Slots | One (1) |
| I/O Slots | Nine (9) |
| Power Supply Slots | One (1) |
| Connector | 25-Pin female |
| Mounting | Panel Mounting |
| Default Rack Address | Rack number 0 |
| Lifecycle Status | Discontinued/Obsolete |
Slot Assignments and Configuration
Slot 1 is reserved for the CPU or a specialty module such as a FIP Bus Remote I/O scanner. Slots 2 through 10 accommodate I/O or option modules. The power supply installs in the leftmost position, which is not counted among the ten slots. This design maximizes I/O capacity. The default rack address is 0, but you can modify it through programming software.
Expansion Capabilities
The IC693CHS391 supports up to four or seven expansion baseplates, depending on the CPU model. A 25-pin female connector on the right side links to expansion or remote baseplates. Cables must be less than 700 feet. The baseplate also connects to a personal computer using a PCI card. This flexibility allows you to scale your system as production needs grow.
Compatibility and Integration
The IC693CHS391 works exclusively with GE Fanuc Series 90-30 PLCs. It cannot operate as a standalone unit. It requires either a PLC device or a PC with a PCI card. The baseplate supports panel mounting only, secured with screws and washers through the provided mounting holes. Vertical or horizontal orientation is possible, depending on your layout.
Installation and Environmental Considerations
Mount the baseplate on a clean, dry panel away from water splashes, dust, dirt, and harmful chemicals. Maintain the specified environmental temperature range. The open enclosure design requires a controlled environment. Always follow the manufacturer’s safety manual during installation and maintenance.
Maintenance and Reliability
Periodically inspect the baseplate for loose connections, dust accumulation, and signs of overheating. Since this is a discontinued product, consider purchasing spare units to avoid downtime. The IC693CHS391 has no moving parts, so wear is minimal. However, environmental contaminants can degrade performance over time.
Frequently Asked Questions
Is the IC693CHS391 still available?
This product is discontinued/obsolete. Contact SpareTechPLC to verify current availability and explore replacement options.
Can I use the IC693CHS391 as a standalone unit?
No. It requires connection to a PLC device or a personal computer with a PCI card.
How many expansion baseplates can I connect?
Up to four or seven, depending on the CPU model you install.
What is the default rack address?
Rack number 0. You can modify it through programming software.
What mounting options does it support?
Panel mounting only, using screws and washers through the provided holes.
