0-57412-E RELIANCE

Reliance 0-57412-E Analog Output Modules

Brand：RELIANCE Model number：0-57412-E

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

Reliance Electric, now a part of Rockwell Automation (Allen-Bradley), manufactured a range of Analog Output Modules for their industrial control systems, particularly for their AutoMax and DCS 5000 PLC platforms. These modules were designed to convert digital control signals from the PLC into continuous analog signals, used to control various field devices that require variable inputs.

Product Details

Functionality: RELIANCE Analog Output Modules serve as the interface between the digital world of the PLC and the analog world of industrial processes. They take a digital value (typically a 12-bit or 16-bit word) from the PLC's memory and convert it into a proportional analog voltage or current signal. This allows for precise control of parameters like motor speed, valve position, heating element power, or light intensity.
Common Signal Types:

Voltage Outputs: Typically $\pm 5 V$ , $\pm 8 V$ , or $\pm 10 V$ DC.
Current Outputs: Most commonly $4 - 20 m A$ DC. This is a robust signal type for industrial applications as it's less susceptible to noise over long distances.

Architecture: These modules typically plug into a backplane or rack within the RELIANCE control system (e.g., AutoMax or DCS 5000). They contain Digital-to-Analog (D/A) converters and associated circuitry for signal conditioning and isolation.
Isolation: A key feature of many RELIANCE analog output modules is electrical isolation between the logic common of the PLC and the analog outputs. This provides crucial protection against noise, ground loops, and potential damage to sensitive control components from field-side electrical disturbances.

Product Parameters (Illustrative, as specific models vary)

Channels: Commonly available in 4-channel or 8-channel configurations, meaning each module can control multiple analog outputs independently.
Resolution: Typically 12-bit for voltage outputs, providing 1 part in 4096 resolution. For $4 - 20 m A$ current outputs, it might be 11-bit. Higher resolution (e.g., 16-bit) offers finer control.
Output Ranges:

Voltage: $\pm 5 V$ , $\pm 8 V$ , $\pm 10 V$
Current: $4 - 20 m A$ (requires external power supply for the loop)

Accuracy: Often specified as a percentage of full scale, e.g., $\pm 0.10%$ for voltage output, $\pm 0.15%$ for current output.
Isolation: For isolated modules, a common specification is $2500 V$ isolation between logic common and outputs. Each channel often has its own independent isolated common.
Output Protection: Voltage outputs are typically current-limited and short-circuit protected.
Conversion Time: The time it takes for the module to convert a digital value to an analog signal, often in microseconds (e.g., $40 μ s$ ).
Power Consumption: Specific power requirements from the system backplane (e.g., $+ 5 V$ , $+ 12 V$ , $- 12 V$ currents).
Operating Temperature: Standard industrial ranges, e.g., $0^{\circ} C$ to $6 0^{\circ} C$ ( $3 2^{\circ} F$ to $14 0^{\circ} F$ ).
Storage Temperature: Wider range, e.g., $- 4 0^{\circ} C$ to $8 5^{\circ} C$ ( $- 4 0^{\circ} F$ to $18 5^{\circ} F$ ).
Humidity: Non-condensing, e.g., $5 - 90%$ or $5 - 95%$ .

Product Advantages

Precise Control: Analog output modules enable fine, continuous control over process variables, leading to optimized system performance and product quality.
Robustness: Designed for the harsh conditions of industrial environments, offering reliable operation and longevity.
Electrical Isolation: The isolation feature on many modules significantly reduces noise interference and protects the sensitive control system from electrical transients or ground potential differences in the field. This improves system stability and reduces troubleshooting.
Compatibility: Designed for seamless integration with RELIANCE PLC systems (AutoMax, DCS 5000), simplifying system design and programming.
Configurability: Many modules offer selectable output ranges (e.g., voltage or current, different voltage spans) allowing for flexibility in application.
Diagnostics: Some modules provide diagnostic capabilities to help identify wiring faults or module malfunctions.

Important Considerations

Legacy Status: Reliance Electric products, including these analog output modules, are considered legacy (older) equipment. While still functional, finding new modules can be challenging. Support is often through third-party distributors or repair services.
Replacement/Upgrade: For new installations or system modernizations, users would typically consider current Rockwell Automation (Allen-Bradley) or other contemporary PLC platforms, which offer newer analog output module technologies.
Compatibility: Ensure the module's part number and specific model are compatible with your existing RELIANCE PLC system and its firmware version.
Wiring Practices: Adhere strictly to the manufacturer's wiring guidelines for analog signals, including shielding, grounding, and separation from noise sources, to ensure signal integrity and accuracy.
Calibration: Analog output modules may require calibration periodically to maintain accuracy, especially in applications where precise control is critical.
Load Requirements: Verify that the current or voltage output capabilities of the module meet the requirements of the connected field device (e.g., valve actuator, VFD input).
Power Supply for Current Loops: If using $4 - 20 m A$ current output, ensure that an adequate external power supply is provided for the current loop.
Safety: Always follow safety precautions and lockout/tagout procedures before installing, wiring, or servicing these modules, as unexpected machine motion can occur.

Product Applications

RELIANCE Analog Output Modules were widely used in a variety of industrial and process control applications where variable control of physical quantities was required:

Process Control:

Controlling flow rates in pipelines by adjusting valve positions.
Regulating temperature in ovens, furnaces, or HVAC systems.
Controlling pressure in vessels or pneumatic systems.
Dosing and mixing precise amounts of liquids or chemicals.

Motor Control:

Providing speed reference signals to Variable Frequency Drives (VFDs) for precise motor speed control.
Controlling the torque or position of servo drives.

Actuator Control:

Positioning hydraulic or pneumatic cylinders.
Controlling electric actuators for dampers, shutters, or other mechanical devices.

Lighting Control:

Dimming or controlling the intensity of industrial lighting systems.

Pumping Stations:

Controlling pump speeds to regulate fluid levels or flow rates.

Test and Measurement:

Generating analog signals for testing equipment or simulating sensor outputs.

418283-18A RELIANCE

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