Phoenix MINI MCR-SL-U1-21-SP Signal Conditioner

Phoenix Contact MINI MCR-SL-U1-21-SP Overview

The Phoenix Contact MINI MCR-SL-U1-21-SP is a highly compact, universal signal conditioner from the MINI Analog Pro series (formerly MINI MCR). It is designed to convert and isolate a wide range of analog input signals into standardized analog output signals, making it an essential component for industrial automation where various sensor signals need to be integrated into control systems. The "SP" suffix likely indicates a specific connection technology or variant, such as a spring-cage terminal.

Product Detailed Description

• Core Function: The primary function is the galvanic isolation, conversion, and conditioning of analog signals. It takes a wide variety of input signals (voltage, current, thermocouple, RTD) and outputs a standardized, isolated signal (e.g., 0/4-20 mA, 0-10 V). This isolation protects downstream devices from ground loops and electrical interference, ensuring signal integrity.

• Universal Input/Output: This particular model is "universal," meaning its input and output ranges are highly configurable.

• Input Types: Typically supports a broad range of voltage signals (e.g., ±10 V, 0-10 V, 0-5 V, etc.), current signals (e.g., 0/4-20 mA), thermocouples (Type J, K, T, E, N, R, S, B, C, D, G, U, L), and RTDs (Pt100, Pt500, Pt1000, Ni100, Ni1000, Cu10, Cu50, Cu100).

• Output Types: Typically provides standard current (0/4-20 mA) and voltage (0-5 V, 0-10 V, ±10 V) outputs.

• Galvanic Isolation: Provides 3-way isolation (input/output/power supply) to prevent ground loops and protect against transient overvoltages.

• Configuration: Configuration is typically done via DIP switches on the device for basic settings, or more advanced parametrization can be achieved using software (e.g., Phoenix Contact's free FDT/DTM-based software or the CLIP PROJECT planning software) via a dedicated configuration port or a USB interface (often requiring an adapter).

• Diagnostics: Often includes LED indicators for power, status, and error conditions, aiding in quick troubleshooting.

• Compact Design: Part of the "MINI" series, it is exceptionally narrow (typically 6.2 mm or similar width), saving valuable space in control cabinets.

• Connection Technology: The "SP" likely denotes "Spring-Cage Connection," which offers tool-free, vibration-resistant, and quick wiring.

Product Parameters

(Note: These are typical ranges for universal MINI MCR-SL series devices. For the precise specifications of ML4.2-T-8m-RT/76a-95, always refer to the current official Phoenix Contact datasheet or product manual.)

• Input Ranges:

• Current: 0/4-20 mA (configurable)

• Voltage: 0-10 V, 0-5 V, ±10 V, etc. (configurable)

• Thermocouple: Various types (J, K, T, E, N, R, S, B, C, D, G, U, L)

• RTD: Various types (Pt100, Pt500, Pt1000, Ni100, Ni1000, Cu10, Cu50, Cu100)

• Output Ranges:

• Current: 0/4-20 mA (configurable)

• Voltage: 0-5 V, 0-10 V, ±10 V (configurable)

• Isolation: 3-way galvanic isolation (Input/Output/Supply)

• Supply Voltage: Typically 24 V DC (range 19.2 V DC to 30 V DC)

• Accuracy: Typically < 0.1% of full scale

• Operating Temperature: -20 °C to +65 °C (or similar, depending on exact model)

• Housing Width: 6.2 mm (standard for MINI Analog Pro)

• Connection Type: Spring-cage terminals

• Mounting: DIN rail (NS 35)

• Protection Type: Typically IP20

• Certifications: CE, UL, cULus, etc. (specific to model and region)

Product Advantages

• Universal Applicability: One device can handle multiple input and output signal types, simplifying inventory and engineering.

• Space-Saving Design: Its ultra-slim profile (6.2 mm) significantly reduces cabinet space requirements, especially in large-scale applications.

• High Precision and Reliability: Provides accurate signal conversion and robust isolation, ensuring stable and reliable data for control systems.

• Galvanic Isolation: Protects against electrical interference, ground loops, and transient overvoltages, enhancing system integrity and safety.

• Flexible Configuration: Easy configuration via DIP switches or advanced software tools allows for quick adaptation to various application needs.

• Tool-Free Wiring (Spring-Cage): Spring-cage technology ensures fast, secure, and vibration-resistant connections without the need for tools, reducing installation time and potential wiring errors.

• Diagnostic LEDs: Integrated LEDs provide immediate status and error information, simplifying troubleshooting.

• Broad Temperature Range: Suitable for use in a wide variety of industrial environments.

Precautions

• Correct Configuration: Ensure the input and output ranges are correctly configured via DIP switches or software to match the sensor and controller requirements. Incorrect settings will lead to erroneous readings.

• Power Supply: Use a stable and correctly sized 24 V DC power supply within the specified voltage range.

• Wiring: Follow the wiring diagram in the product manual meticulously. Ensure proper polarity for input and output signals and power supply. Use appropriate wire gauges for the spring-cage terminals.

• Environmental Conditions: Install the module within its specified operating temperature and humidity ranges. Avoid areas with excessive vibration, direct sunlight, or corrosive atmospheres unless the device is specifically rated for such conditions.

• Grounding: While isolated, ensure proper grounding practices for the overall control system to minimize noise and improve safety.

• Software for Advanced Configuration: For precise calibration, linearization, or advanced diagnostic features, the appropriate Phoenix Contact configuration software and a programming adapter may be required.

Product Applications

The Phoenix Contact MINI MCR-SL-U1-21-SP is ideal for applications requiring the conversion and isolation of diverse analog signals in confined spaces.

• Process Industry:

• Connecting various field sensors (temperature, pressure, flow) to DCS/PLC systems.

• Ensuring signal integrity in large plants susceptible to ground loops.

• Factory Automation:

• Interfacing different types of analog sensors with machine controllers.

• Signal conditioning for quality control and monitoring systems.

• Building Automation:

• Integrating HVAC sensors (temperature, humidity, pressure) into building management systems.

• Energy Management:

• Conditioning signals from energy meters or power quality sensors.

• Water and Wastewater Treatment:

• Converting signals from pH, ORP, level, or turbidity sensors for control systems.

• OEM Applications:

• Integration into compact custom control panels and machinery where space is at a premium.

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