IC694MDL250 GE Fanuc RX3i 16-Point Discrete Input Module - 120V

Product Overview

The IC694MDL250 is a high-performance 120 VAC discrete input module engineered specifically for the PACSystems RX3i and Series 90-30 controller environments. Originally manufactured by GE Intelligent Platforms and presently supported through Emerson Automation, this robust input card features sixteen (16) individually isolated channels designed to handle high-voltage industrial signaling safely. Industrial automation professionals rely on the IC694MDL250 to capture binary inputs from complex field devices while ensuring reliable galvanic isolation and noise immunity in harsh operating conditions.

Technical Specifications

• Brand: GE Fanuc / GE Intelligent Platforms
• Series: PACSystems RX3i
• Part Number: IC694MDL250
• Product Type: 16-Channel Discrete Input Module
• Nominal Input Voltage: 120 VAC (47 to 63 Hz)
• Input Voltage Range: 0 to 132 VAC
• Number of Channels: 16 individually isolated points in a single group
• On-State Voltage Range: 70 VAC to 132 VAC (6 mA current)
• Off-State Voltage Range: 0 VAC to 20 VAC (2.5 mA current)
• Input Current Draw: 14.5 mA nominal per channel
• Backplane Power Consumption: 60 mA at 5 VDC
• Response Time: Maximum 30 ms (On-state), Maximum 45 ms (Off-state)
• Optical Isolation: 250 VAC continuous; 1500 VAC for 1 minute channel-to-backplane
• Compatible Terminal Connectors: IC694TBBx32 or IC694TBSx32 block kits
• Operating Environment: Class 1, Division 2, Groups A, B, C, D hazardous areas

Installation & Integration Guide

• Mounting Flexibility: Can be installed on standard DIN rails or directly onto panel mounting bases within local racks or distributed I/O drop nodes.
• Hot-Swap Capability: Supports hot-swappable replacement procedures, allowing technicians to swap modules safely without powering down the entire backplane rack.
• Firmware Prerequisite: Requires host CPU firmware version 3.5 or later to properly parse high-speed data exchanges and terminal diagnostics.
• Wiring Specifications: Terminate field signals using appropriate cable gauges into compatible terminal blocks equipped with built-in RC snubbers for transient noise suppression.

Commissioning & Maintenance Ease

• Channel Status Indicators: Each of the 16 input points features a dedicated front-panel LED that illuminates to provide instant visual feedback on signal status.
• Configurable Filtering: Software-selectable input filter times ranging from 20 ms to 2,540 ms (in 20 ms increments) can be pushed directly from the CPU to eliminate line chatter.
• Terminal Diagnostics: Field-side terminal block errors and open-wire conditions are automatically reported back to the main RX3i central processor for rapid troubleshooting.

Compatibility & Certifications

• Controller Compatibility: Fully compatible with PACSystems RX3i racks, expansion bases, and high-speed serial backplane communication architectures.
• Safety Standards: Certified to UL 508 and equivalent to CSA C22.2 No. 142-M1987 standards for industrial control equipment.
• Hazardous Location Approval: Approved for safe deployment in Class 1, Division 2 hazardous industrial environments.

Packing List & Warranty Terms

• Packing List: One (1) IC694MDL250 Discrete Input Module, protective anti-static packaging casing, and hardware documentation sheet.
• Warranty Terms: Fully backed by a comprehensive 12-month warranty covering structural integrity and operational performance from the date of purchase.

Shipping & Logistics

• Courier Network: Express global shipping handled securely through trusted carriers including FedEx, UPS, and DHL.
• Fulfillment Window: Orders are verified, securely packed, and dispatched within 24-48 hours to minimize unexpected plant downtime.

Typical Application Scenes

• Manufacturing Assembly Lines: Monitoring status signals from push-button control desks, limit switches, and mechanical auxiliary contacts.
• Heavy Processing Plants: Interfacing with high-voltage proximity sensors and thumbwheel selectors in rugged chemical or metal processing floors.
• Power Distribution Skids: Capturing binary feedback states from industrial switchgear and relay protection panels operating on 120V AC utility lines.

Global PLC Spare HUB Insight & Field Experience

When deploying high-voltage AC input cards like the IC694MDL250 in heavy industrial zones, induced electrical noise from nearby variable frequency drives can sometimes cause phantom state toggling. Based on field installation experience, our engineering team strongly recommends utilizing shielded control cables, ensuring proper cabinet earth grounding, and configuring appropriate input filter times (e.g., setting filters above 40 ms) in the programming software to completely filter out high-frequency transient spikes.

Frequently Asked Questions

What is the primary advantage of the individual channel isolation on the IC694MDL250?

Individual channel isolation ensures that an electrical fault or overvoltage condition on one input point will not propagate or damage adjacent channels or internal backplane circuitry.

Can the IC694MDL250 module be replaced while the system is powered on?

Yes, the module supports hot-swapping within compatible RX3i backplane architectures, permitting replacement without shutting down the entire control rack.

How do I configure input filter times for this module?

Input filter times are configured within the programming software configuration tree and sent directly from the RX3i CPU to the module in 20 ms increments up to 2,540 ms.

What field wiring accessories are required for proper connection?

The module relies on compatible terminal block options such as the IC694TBBx32 or IC694TBSx32 snap-in connector assemblies for secure field wiring terminations.

What buying criteria should I consider when selecting replacement input modules?

Always verify your rack's available backplane slot capacity, check that your CPU firmware version meets the 3.5 minimum requirement, and match the nominal field voltage (120 VAC) to your existing sensor infrastructure.

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