5X00481G04 Emerson

5X00481G04 Emerson Relay Input Module

Product  Description：

Emerson Relay Input Modules are specialized interface components designed for use within high-availability control systems, such as the DeltaV Distributed Control System (DCS) or Ovation platforms. These modules are engineered to receive discrete signals from field devices and provide high levels of electrical isolation and ruggedness. Unlike standard transistor-based inputs, relay input modules utilize physical contact points or high-capacity circuitry to handle diverse voltage levels and provide a clear mechanical or electrical separation between the field environment and the controller logic.

Product Parameters

The technical characteristics of Emerson Relay Input Modules reflect their role in critical infrastructure and process automation:

• Input Voltage Compatibility: Designed to accept a wide range of field voltages, typically supporting 24V DC, 120V AC, and 230V AC inputs on the same module type or via specific variants.

• Channel Density: Commonly available in 8-channel, 16-channel, or 32-channel configurations to balance space efficiency with wiring complexity.

• Isolation Rating: Features robust galvanic isolation, often rated at 1500V AC or higher, to protect the system backplane from field-side electrical faults.

• Input Filtering: Adjustable software-based debouncing and hardware filters to prevent "chatter" or false triggering from mechanical switch bounces.

• Power Consumption: Optimized for low heat dissipation within the I/O rack, typically drawing minimal current from the system's local bus.

• Response Time: Configured for industrial signaling, with typical transition speeds ranging from 5 to 20 milliseconds, ensuring reliable detection of state changes.

Product Advantages

Emerson Relay Input Modules are distinguished by their reliability in demanding industrial settings:

• Exceptional Electrical Isolation: The physical or high-grade opto-isolation ensures that power surges or ground faults in the field do not migrate to the sensitive controller CPU.

• Universal Signal Handling: They can often interface with a variety of dry contacts and powered switches without requiring interposing relays, simplifying the overall cabinet design.

• Integrated Diagnostics: Emerson modules frequently feature advanced "Self-test" capabilities and "Line Fault Detection" to identify open circuits or short circuits in the field wiring before they cause a process upset.

• Hot-Swappable Design: Built for continuous operations, these modules can be replaced under power without interrupting the operation of other modules in the same redundant carrier.

• High Environmental Tolerance: Rated for G3 harsh environments, providing resistance to corrosive gases, humidity, and extreme temperatures common in chemical and offshore applications.

Product Applications

These modules are integral to safety and monitoring systems across heavy industries:

• Safety Instrumented Systems (SIS): Monitoring the status of emergency stop buttons, pull cords, and safety interlocks in hazardous areas.

• Power Plant Control: Collecting status feedback from high-voltage breakers, disconnect switches, and motor starters in utility-scale power generation.

• Oil and Gas Processing: Interfacing with pressure switches, level switches, and fire detection sensors across refineries and upstream platforms.

• Infrastructure Monitoring: Managing discrete inputs for large-scale HVAC, water filtration systems, and facility security in commercial or industrial complexes.

• Turbine Control: Capturing critical discrete signals for the sequencing and protection logic of gas and steam turbines.

Important Precautions

To ensure the safety and longevity of the Emerson Relay Input Module, users must adhere to these operational guidelines:

• Contact Rating Limits: Always verify that the incoming voltage and current from the field device do not exceed the module’s rated limits. Over-voltage can breach the isolation barrier and damage the module.

• Wiring Polarity: While some relay inputs are non-polar, many DC-specific modules require strict adherence to positive and negative terminal assignments to ensure the diagnostic circuits function correctly.

• Surge Suppression: When the input signal originates from a device with a large inductive load, ensure that external surge suppression (such as a MOV or diode) is installed at the source to prevent electromagnetic interference.

• Correct Seating: Ensure the module is firmly clicked into the carrier or baseplate. A partial connection can lead to intermittent "Bad Status" errors in the DCS software and potential hardware arcing.

• Environmental Protection: Although the modules are rugged, they should always be installed in an enclosure that meets the required NEMA or IP rating for the specific site to prevent the accumulation of conductive dust or moisture.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.