FLXA202-D-C-D-CB-P1-NN-A-N-LA-NN/UM Yokogawa

FLXA202-D-C-D-CB-P1-NN-A-N-LA-NN/UM Yokogawa I / O module

Product  Description：

Yokogawa I/O (Input/Output) modules, primarily designed for the CENTUM Distributed Control System (DCS) and ProSafe-RS Safety Instrumented Systems, serve as the critical interface between field instruments and the central control processors. These modules process field signals from various industrial sensors and transmit control commands to actuators, valves, and motor starters. Engineered for high availability and strict process safety, they are foundational to maintaining continuous plant operations.

Product Parameters

The technical configurations of Yokogawa I/O modules are tailored to meet rigorous industrial signal requirements:

• Signal Density: Available in configurations ranging from standard 8-channel and 16-channel modules to high-density 32-channel or 64-channel variants.

• Input Signal Types: Supports universal analog inputs (4-20mA DC, 1-5V DC), thermocouple (types K, J, T, E, R, S, B, N), RTD (Pt100, JPt100), and digital discrete inputs (dry contact, 24V DC).

• Output Signal Types: Provides analog outputs (4-20mA DC) for modulating control valves and digital outputs (relay contact, transistor, triac) for on/off control.

• Conversion Resolution: Analog modules feature high-precision 16-bit analog-to-digital (A/D) and digital-to-analog (D/A) converters.

• Isolation Voltage: Robust galvanic isolation, typically rated at 1500V AC or higher, between field circuits, system circuits, and channel-to-channel paths.

• Diagnostic Capability: Line monitoring thresholds configured to detect open-circuit (wire-break) or short-circuit conditions down to microampere thresholds.

Product Advantages

Yokogawa I/O modules are highly regarded in the process industries for their exceptional reliability and advanced diagnostic features:

• Online Module Replacement: Supports complete hot-swapping functionality, allowing operators to replace a faulty module while the system is live without interrupting the operation of adjacent channels or the process.

• Dual Redundancy Support: Modules can be installed in pairs (redundant configuration) with automatic, bumpless switchover capabilities, ensuring that a single hardware fault never causes a process shutdown.

• Field Digital Communication: Seamlessly integrates digital fieldbus technologies, including HART, Foundation Fieldbus, and Profibus, allowing the module to pass device calibration and diagnostic data straight to the asset management system.

• Superior Environmental Resistance: Features optional G3 conformal coating to withstand highly corrosive chemical environments, high humidity, and airborne contaminants common in industrial plants.

• High Control Accuracy: Designed with temperature compensation and high linearity, ensuring that process measurements remain stable and precise over wide ambient temperature fluctuations.

Product Applications

These I/O modules are widely implemented in heavy industries where process downtime results in significant economic loss:

• Chemical and Petrochemical Plants: Interfacing with temperature transmitters, flow meters, and safety valves in hazardous processing zones.

• Oil and Gas Production: Managing remote telemetry units, wellhead control systems, and emergency shutdown inputs on offshore platforms and cross-country pipelines.

• Power Generation: Collecting real-time data from steam temperature sensors, pressure transducers, and water-level switches in utility boilers.

• LNG Liquefied Natural Gas Processing: Monitoring cryogenic temperature inputs and handling precision control loops for high-pressure gas compressors.

• Iron and Steel Manufacturing: Managing the extreme temperature inputs from blast furnaces and controlling heavy hydraulic actuators in rolling mills.

Important Precautions

To maintain safe operation and ensure measurement accuracy, the following guidelines must be strictly observed:

• Terminal Block Security: Ensure that the matching terminal block or pressure-clamp connector is firmly locked onto the module body. A loose connection can cause intermittent signal drops or incorrect analog readings.

• Power Polarity Verification: Double-check the external loop power polarity before connecting field instruments. Reversing the positive and negative terminals on a current-input loop can lead to blown internal fuses or permanent hardware damage.

• Shielding and Noise Mitigation: Always route low-voltage analog input wiring through dedicated, grounded instrument trays. Keep these signal lines completely separated from high-voltage motor starters and variable frequency drive cables to prevent inductive noise interference.

• Unused Channel Configuration: Properly configure unused channels within the software environment (such as Centum's builder tool) by setting them to a disabled status. For analog input modules, it is recommended to short-circuit unused terminals to prevent floating voltage noise from generating false system alarms.

• Safe Removal Procedures: When replacing a redundant module, verify the status LEDs to ensure that the target module is currently in standby mode and that its redundant partner is active before pulling the unit out of the base chassis.

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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JUSTWELL PTE. LTD

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.