GE Fanuc IC694MDL916 RX3i 16-Point Relay Output Module

Global PLC Spare HUB's Insight

When replacing or upgrading relay output modules in high-inductive industrial environments, technicians frequently encounter premature contact wear due to back-EMF spikes. Based on field deployment experience with the PACSystems RX3i platform, adding external RC snubber networks across inductive loads connected to the IC694MDL916 drastically extends relay operational life beyond standard thresholds. For instance, controlling small solenoid valves on a high-cycle packaging line without suppression can degrade contacts within months, whereas proper snubber installation preserves the Form A contacts through millions of switching cycles.

Product Overview

The IC694MDL916 is a high-performance 16-channel relay output module designed for the PACSystems RX3i automation platform. Originally manufactured by GE Intelligent Platforms (GE Fanuc) and currently produced by Emerson Automation, this single-slot module delivers reliable discrete control for industrial loads. Each of the sixteen channels features individually isolated Form A Normally Open dry contacts, allowing flexible integration of mixed AC and DC voltages within a single module.

Technical Specifications

• Brand: GE Fanuc / Emerson Automation
• Series: PACSystems RX3i
• Model / Part Number: IC694MDL916
• Product Type: Relay Output Module
• Number of Channels: 16 channels, individually isolated
• Output Contact Form: Form A (Normally Open, N.O.)
• Operating Voltage Range: 5 to 250 VAC (47 to 63 Hz); 0 to 125 VDC
• Nominal Output Voltage: 120-240 VAC; 5 / 24 / 125 VDC
• Switching Current per Channel: 4A maximum (resistive for 5-250VAC and 5-30VDC); 200mA maximum for 125VDC; 10mA minimum
• Pilot Duty and Lamp Load: 2A per output (5 to 30VDC, 5 to 250VAC)
• Switching Frequency: 20 cycles per minute maximum
• Response Time: 10 milliseconds maximum (on/off)
• Backplane Current Draw: 300 mA at 5 VDC; 150 mA at 24 VDC relay power
• Isolation (Field to Backplane / Frame Ground): 250 VAC continuous; 1500 VAC for 1 minute
• Operating Temperature Range: Standard industrial panel limits
• Environmental Tolerance: Built-in noise immunity for harsh factory floors
• Linearity & Resolution: Discrete on/off digital control state

Installation Guide

• Power off the PACSystems RX3i rack before installing or removing modules.
• Slide the IC694MDL916 module firmly into an available I/O slot on the baseplate.
• Secure the module using the integrated upper and lower locking tabs.
• Attach your chosen terminal block variant (IC694TBB032 box-style, IC694TBS032 spring-style, or extended versions IC694TBB132 / IC694TBS132) to the front connector.
• Wire external field devices directly to the designated isolated channel terminals, ensuring load currents do not exceed specified ratings.

Compatibility & Software Configuration

• Compatible Controllers: PACSystems RX3i CPU series (Firmware version 3.81 or later)
• Programming Software: Proficy Machine Edition version 5.5, Service Pack 2 or later
• Terminal Blocks: IC694TBB032, IC694TBS032, IC694TBB132, IC694TBS132

Commissioning & Maintenance Convenience

• Channel Status Indicators: Individual green LED lights display real-time operational status for every output point.
• Diagnostic Reporting: Generates system alerts for module faults and terminal block mismatch errors.
• Removable Blocks: Front terminal blocks allow fast wiring disconnections without disturbing field cabling during maintenance routines.

Certifications & Compliance

Built to meet industrial CE, UL, and standard hazardous location compliance frameworks as per Emerson Automation production guidelines.

Package Contents & Shipping Terms

• Package Contents: One IC694MDL916 module, protective dust covers, and hardware installation guide.
• Shipping Carriers: FedEx, UPS, and DHL.
• Dispatch Time: 24 to 48 hours from order confirmation.

Warranty Terms

Warranty Duration: Comprehensive 12-month warranty covering manufacturing defects from the date of purchase.

Typical Application Settings

• Industrial conveyor systems
• Automated manufacturing machinery
• Solenoid valve control panels
• Motor starter interfaces
• Process plant indicator alarms

Frequently Asked Questions (FAQ)

Can the IC694MDL916 handle mixed AC and DC loads simultaneously across different channels?

Yes. Each of the 16 channels is completely isolated, allowing you to connect 120VAC to one channel and 24VDC to an adjacent channel safely.

What software version is required to configure the IC694MDL916 module?

You need Proficy Machine Edition version 5.5 with Service Pack 2 or any later release to configure the module parameters properly.

Why do relay contacts fail prematurely in high-cycle inductive applications?

Inductive loads generate high voltage spikes when switching off. Field engineers solve this by installing external RC snubbers or flyback diodes to protect the IC694MDL916 contacts.

Which terminal blocks are compatible with this module?

You can use standard box-style IC694TBB032, spring-style IC694TBS032, or extended shroud versions IC694TBB132 and IC694TBS132 for shielded cables.

How do I select the right replacement module for an older system?

Verify that your existing system runs on the PACSystems RX3i rack architecture and match the exact part number IC694MDL916 to ensure direct hardware and software compatibility.