YTA710-JA1A4DB/KU2 Yokogawa Output Point I/O Module

Product Detailed Description

• Function:

• Receives an electrical input signal (e.g., 4-20 mA DC) from a controller (e.g., DCS, PLC).

• Converts this electrical signal into a corresponding, precise pneumatic output pressure signal.

• The output pressure then drives pneumatic final control elements, such as control valves, dampers, or pneumatic actuators.

• Often features a rugged, explosion-proof design for safe operation in hazardous environments.

• Features:

• High Accuracy and Reliability: Ensures precise and stable conversion for accurate process control.

• Fast Response: Provides quick conversion to minimize lag in control loops.

• Low Air Consumption: Efficient design reduces operating costs associated with compressed air.

• Robust Construction: Designed to withstand harsh industrial environments, including vibrations and temperature variations.

• Explosion-Proof/Intrinsically Safe Options: Available for installation in hazardous areas (e.g., in accordance with ATEX, FM, CSA standards).

• Versatile Mounting: Typically designed for DIN rail mounting, pipe mounting, or direct valve mounting.

• Adjustability: Often includes external zero and span adjustments for field calibration.

• Reverse Action: Some models offer the ability to select direct or reverse action.

Product Parameters

Specific parameters will vary depending on the model (e.g., Yokogawa current models include the "YP" series like YP130, YPA110, YPC series), but here are common ranges:

• Input Signal:

• Standard: 4-20 mA DC

• Optional: 1-5 V DC (less common for I/P)

• Output Pressure:

• Standard: 0.02-0.1 MPa (3-15 psi)

• Other ranges may be available, e.g., 0.02-0.01 MPa (3-27 psi)

• Supply Air Pressure:

• Typically: 0.14 MPa (20 psi) or 0.2 MPa (29 psi)

• Range: 0.14 MPa to 0.7 MPa (20 to 100 psi) depending on output range

• Accuracy:

• Typically: ±0.5% to ±1.0% of span

• Air Consumption:

• Low, typically < 0.5 Nl/min (Normal liters per minute) at 0.1 MPa output.

• Response Time:

• Fast, typically < 1 second for 90% response.

• Ambient Temperature:

• Operating Range: -40 to +80 °C (-40 to +176 °F)

• Degree of Protection:

• Typically: IP65 or IP67

• Electrical Connection:

• Terminal box with cable glands or conduit connections.

• Pneumatic Connections:

• NPT, Rc, or G threads for air supply and output.

• Certifications:

• ATEX, FM, CSA, IECEx for hazardous locations (model-dependent).

Product Advantages

• Precision Control: High accuracy and fast response lead to very precise control of pneumatic actuators, improving process stability.

• Robustness: Built to withstand harsh industrial environments, ensuring long-term reliability and reduced downtime.

• Energy Efficiency: Low air consumption contributes to lower operating costs.

• Safety: Available with hazardous area certifications, making them suitable for use in explosive atmospheres.

• Ease of Maintenance: Simple design often allows for easy field calibration and maintenance.

• Integration: Seamlessly integrates with Yokogawa's DCS (Distributed Control Systems) and other control platforms.

• Durability: Yokogawa products are known for their high quality and long operational life.

Precautions

• Proper Air Supply: Ensure the supply air is clean, dry, and free of oil. Install appropriate air filters and regulators upstream of the converter. Contaminated air is a common cause of I/P converter failure.

• Correct Installation: Mount the converter securely and in the correct orientation (as specified in the manual) to avoid performance issues due to vibration or moisture accumulation.

• Electrical Connection: Follow the wiring diagrams carefully, ensuring proper polarity for the input signal and correct grounding.

• Calibration: While factory calibrated, field zero and span adjustments should be performed if necessary, following the manufacturer's instructions.

• Operating Environment: Ensure the ambient temperature and humidity are within the specified limits. Avoid excessive vibration or direct exposure to corrosive substances.

• Safety Certifications: When using in hazardous areas, ensure the specific model has the required certifications and that installation follows all relevant codes and standards.

• Output Loading: Ensure the pneumatic actuator (e.g., control valve positioner) being driven by the converter is within its capacity.

Product Applications

Yokogawa I/P converters are widely used across various industries where precise control of pneumatic final control elements is required.

• Oil & Gas:

• Controlling flow, pressure, and level in refineries, petrochemical plants, and offshore platforms.

• Actuating control valves for process regulation.

• Chemical Industry:

• Precise control of reaction processes, blending, and distillation.

• Interfacing electronic controllers with pneumatic actuators in hazardous environments.

• Power Generation:

• Controlling steam turbine valves, boiler combustion air, and damper positions.

• HVAC control in power plants.

• Pulp & Paper:

• Controlling flow and pressure in pulp lines, chemical recovery, and paper machine operations.

• Water & Wastewater Treatment:

• Regulating chemical dosing, flow rates, and valve positions in treatment plants.

• Pharmaceutical Industry:

• Precise control in sterile environments and batch processes.

• Food & Beverage:

• Controlling heating, cooling, and mixing processes.

• General Manufacturing:

• Any application requiring conversion of an electronic control signal to a pneumatic output for actuator control.

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