General Electric IC697CHS750 Series 90-70 Rear Mounting PLC Rack

Configured for module rack housing and backplane bus power distribution in Series 90-70 control cabinets, the General Electric IC697CHS750 (IC697CHS750 Rear Mounting PLC Rack) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• Base Model: IC697CHS750 represents the standard 5-slot rear-mount rack chassis for the Series 90-70 family.
• Variant Compatibility: Accepts all IC697 series central processing units, power supplies, option boards, and I/O module variants.

Hardware Specifications

Industrial Control & Backplane Communication Properties

As a central chassis backplane structure within General Electric Series 90-70 PLC architectures, the IC697CHS750 provides physical card guide support and signal routing:

• Backplane Bus Communication Velocity: Distributes high-speed system bus signals between CPU and I/O modules across backplane traces without introducing signal attenuation or frame propagation delays.
• I/O Density Scaling: Houses up to 5 standard IC697 module form factors within a compact chassis envelope, enabling flexible system expansion across multi-rack topologies.
• Firmware Flash Compatibility: Passive backplane connector design maintains pin-for-pin continuity across all IC697 hardware revisions and CPU firmware updates.

Frequently Asked Questions

Q: What types of IC697 modules can be installed into the IC697CHS750 rack?

A: The chassis accepts all standard IC697 module types, including Series 90-70 CPUs, power supplies, communication coprocessors, and discrete or analog I/O cards.

Q: How is the IC697CHS750 rack mounted inside a control enclosure?

A: The rack is designed for direct rear-panel mounting onto an enclosure sub-panel using standard chassis fastening screws.

Q: Does the IC697CHS750 backplane require a separate power supply connection?

A: Power is distributed across the backplane bus traces when an IC697 power supply module is installed into the designated power supply slot of the rack.

Field Installation Guidelines

Proper mechanical mounting and grounding procedures ensure structural stability and signal integrity:

• Rear Panel Fastening: Mount the 5-slot chassis securely to an unpainted metal sub-panel using four appropriate fasteners. Ensure the enclosure sub-panel is flat to prevent mechanical distortion of the rack structure.
• Chassis Grounding: Establish a direct low-impedance ground connection between the rack ground terminal/chassis frame and the main enclosure earth ground bar to ensure proper noise immunity.
• Module Insertion and Alignment: Align IC697 modules carefully with the top and bottom card guides before sliding them backward to engage the backplane pins without bending connector terminals.