Description
IC694MDL754: Product Overview
The GE IC694MDL754 is a 32-point DC voltage output module from GE’s RX3i PACSystem series, a legacy platform renowned for its reliability in industrial automation. As part of the RX3i ecosystem, it acts as a “switching interface” between the PLC controller and field devices (e.g., relays, solenoids), enabling precise control of industrial processes. Its primary role is to convert digital signals from the controller into physical actions (e.g., turning on a pump, activating a valve), which is critical for maintaining process stability and efficiency.
Role in Automation Systems:
Positioned as a “field output interface” in RX3i architectures, the IC694MDL754 performs two primary functions:
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Signal Conversion: Receives digital signals (0/24 V DC) from the PLC controller and converts them into 12/24V DC outputs to drive field devices.
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Device Control: Sends control commands to field actuators (e.g., relays, solenoids) to adjust industrial processes (e.g., starting a conveyor belt, stopping a pump).
Core Functionality:
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Grouped Outputs: The 32 output points are divided into two isolated groups of 16, each with a separate common. This allows each group to be powered by independent DC supply phases, enhancing flexibility in system design.
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Positive Logic Outputs: Uses sourcing (NPN) circuitry, meaning the output switches the positive side of the load circuit. This is compatible with most industrial sensors and actuators.
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Galvanic Isolation: Optocouplers isolate field devices from the controller, protecting sensitive electronics from voltage spikes and electromagnetic interference (EMI) in harsh industrial environments.
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Modular Design: Fits into standard RX3i I/O racks, enabling easy expansion or replacement. The hot-swappable design minimizes downtime during maintenance.
Platform Benefits (RX3i Series):
The IC694MDL754 inherits the RX3i platform’s strengths, including:
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Reliability: The RX3i system is the industry standard for industrial automation, with a proven track record of 24/7 operation in power plants, refineries, and manufacturing facilities worldwide.
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Legacy Compatibility: The module is designed to work with existing RX3i components (e.g., I/O racks, controllers), reducing the cost of system upgrades.
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Scalability: Supports expansion with additional I/O modules (e.g., analog inputs, digital inputs) to accommodate growing system demands.
IC694MDL754
Technical Specifications
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Model Number: IC694MDL754 (Variant of RX3i Series)
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Manufacturer: GE (General Electric)
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Product Type: DC Voltage Output Module
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Series: RX3i PACSystem (Industrial Automation)
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Output Channels: 32 points (2 groups of 16)
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Voltage Range: 10.2–30.0 V DC (nominal 12/24 V DC)
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Current Rating: 0.75 A per channel (max 4 A per group)
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Inrush Current: 3 A max (10 ms)
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Isolation: 1500 V AC (channel-to-channel, channel-to-logic)
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Response Time: <0.5 ms (typical)
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Output Voltage Drop: ≤0.3 V DC (max)
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Leakage Current: ≤0.1 mA @ 24 V DC
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Power Consumption: 300 mA (all outputs ON) from 5 V DC backplane
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Operating Temperature: 0°C to +60°C (industrial-grade)
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Storage Temperature: -40°C to +85°C
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Humidity: 5–95% non-condensing
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Weight: ~0.4 kg (0.88 lbs)
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Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value
1. Reliable Device Control:
The IC694MDL754’s high current capacity (0.75 A per channel) and galvanic isolation ensure reliable control of field devices, even in electrically noisy environments. For example, in a power plant, the module can reliably activate a pump relay to maintain coolant flow, preventing turbine overheating.
2. Flexible Configuration:
The grouped output design (two 16-point commons) allows engineers to customize the module’s functionality for different applications. For instance, in a manufacturing plant, one group can control conveyor belts while the other controls robotic arms, using a single module.
3. Rugged Industrial Design:
The module’s operating temperature range (0°C to +60°C) and compact form factor make it suitable for harsh industrial environments. Its DIN rail mounting option simplifies installation in crowded control cabinets, reducing setup time and effort.
4. Easy Troubleshooting:
The module’s status LEDs (one per channel) provide instant visual feedback on output status, slashing troubleshooting time. For example, if a relay fails to activate, the corresponding LED will remain off, allowing technicians to identify the problem quickly.
IC694MDL754
Typical Applications
The GE IC694MDL754 is widely used in industrial automation systems for:
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Power Generation:
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Controls relays and solenoids in turbine control systems, ensuring stable power output.
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Manufacturing:
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Drives conveyor belts, robotic arms, and assembly line equipment in automotive and electronics manufacturing.
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Petrochemical Industry:
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Activates valves and pumps in refineries, ensuring safe and efficient operation in hazardous environments.
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Water Treatment:
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Controls pumps and valves in water treatment plants, maintaining proper flow and quality.
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