GE Fanuc IC697MDL750 16-Point Relay Digital Output Module

IC697MDL750 is a relay-type discrete output module for GE Series 90-70 PLC platform, equipped with sixteen independent mechanical relay contact channels. It receives switching commands from the PLC CPU via backplane bus and provides dry contact outputs to drive high-current or multi-voltage field loads, including AC solenoids, contactors and alarm beacons. Each relay channel offers complete galvanic isolation between internal control logic and field circuits to resist voltage surges and industrial electromagnetic interference.

This legacy relay output card has been phased out of official production and serves as essential maintenance spare for old power, chemical and papermaking control systems. It fits single slots on IC697CHS790 racks and supports hot-swap maintenance. Front panel LED indicators correspond to each relay to display actuation status, enabling fast field troubleshooting of open wiring or burned contact faults without complex measuring tools.

Main Specifications

• Brand: GE Fanuc (Emerson Automation); Model: IC697MDL750; Series: Series 90-70 Relay Output Module
• Channel Layout: 16 isolated mechanical relay channels, grouped into 4 banks of 4 points each
• Contact Ratings: 2A per channel at 120VAC / 24VDC resistive load; Max switching voltage 250VAC
• Isolation Grade: 2500VAC isolation between PLC backplane and each relay field circuit
• Backplane Consumption: 0.6A @ 5VDC, single standard rack slot installation
• Working Environment: 0℃ ~ +60℃ operating, -40℃ ~ +85℃ storage, 5%–95% RH non-condensing, IP20 cabinet use
• Diagnostic Feature: Independent LED status light for every relay output channel
• Compatible Hardware: IC697CHS790 rack, all Series 90-70 CPUs, standard field terminal wiring bases
• Certifications: UL, CE industrial EMC certification, built-in arc suppression for inductive field loads

Core Functions

• Convert PLC logic digital signals into mechanical relay dry contact switching signals to control field AC and DC actuators with flexible voltage range compatibility.
• Four separated relay banks limit fault spread; short circuit or overload on one bank will not interrupt the operation of other output channels.
• Full galvanic isolation eliminates ground loop interference and back EMF from inductive loads, protecting PLC backplane and CPU core circuits from damage.
• Hot-swappable single-slot design allows module replacement without shutting down the whole PLC rack, minimizing production downtime for continuous process units.
• Dedicated channel LED lights directly reflect relay pull-in status, accelerating on-site fault detection of broken cables, damaged contacts and load failures.
• Unified Series 90-70 backplane pinout allows direct plug-and-play substitution, requiring no major modification to PLC control programs after replacement.

Application Scenarios

• Relay output spare replacement for GE Series 90-70 PLC cabinets in thermal power plants, hydropower stations and combined cycle power control rooms.
• Multi-voltage field actuator control spare parts for petrochemical refineries, natural gas compressor stations and continuous chemical production lines.
• Maintenance backup inventory for pulp & paper mills, metallurgical rolling production lines and municipal wastewater treatment automation enclosures.
• Matching I/O accessory paired with IC697CHS790 rack, Series 90-70 CPU modules and AC contactors, alarm lights and pneumatic solenoid valves.
• Retrofit replacement components for aging control systems suffering relay contact ablation, channel non-conduction and unstable load switching faults.

• Global aftermarket spare stock for maintenance teams managing obsolete GE Fanuc Series 90-70 PLC automation hardware across process industries worldwide.