FR-A7PS MITSUBISHI

FR-A7PS MITSUBISHI analog module

Product  Description：

Mitsubishi Electric Analog Modules are high-precision components designed for the MELSEC PLC series that bridge the gap between continuous physical signals and digital logic. Unlike standard digital modules that only recognize "on" or "off" states, these modules process variable signals such as temperature, pressure, flow, and speed. They provide the critical data necessary for sophisticated PID control and complex process automation.

Product Parameters

The technical capabilities of Mitsubishi Analog Modules are defined by their high resolution and conversion speed:

• Signal Types: Supports standard voltage ranges such as 0 to 5V DC, -10 to +10V DC, and current loops including 0 to 20mA and 4 to 20mA.

• Resolution: High-definition conversion typically ranging from 12-bit to 16-bit, with advanced models offering up to 32,000 or 64,000 digital steps for maximum accuracy.

• Channel Density: Available in configurations of 2, 4, or 8 channels per module, allowing for multi-point sensing in a compact space.

• Conversion Speed: Processing times as fast as 80 microseconds per channel, enabling real-time response in high-speed motion and pressure control.

• Accuracy: High precision with maximum overall error rates often limited to plus or minus 0.1 percent to 0.3 percent at room temperature.

• Isolation: Reinforced galvanic isolation between channels and between the field side and the PLC bus to prevent ground loops.

Product Advantages

These modules are distinguished by their stability and intelligent signal processing features:

• Built-in Digital Filtering: Includes sophisticated averaging and first-order delay filters to eliminate signal noise and jitter without requiring complex PLC programming.

• Scaling and Shifting: Features internal logic to automatically scale raw digital values into engineering units like Celsius, Liters, or PSI directly within the module hardware.

• Peak and Bottom Hold: Ability to capture and store the maximum or minimum values during a specific cycle, which is essential for quality testing and monitoring.

• High Noise Immunity: Designed with advanced shielding and differential input circuitry to maintain signal integrity in electrically noisy industrial environments.

• Intelligent Disconnection Detection: Specialized current-input modules can detect a "broken wire" or sensor failure and trigger an immediate alarm to the CPU.

Product Applications

Mitsubishi Analog Modules are deployed in scenarios requiring precise environmental or mechanical control:

• Temperature Control: Interfacing with thermocouples or RTD sensors to manage industrial furnaces, plastic injection molding heaters, and drying ovens.

• Pressure and Flow Management: Monitoring pump pressure and liquid flow rates in chemical processing plants and water treatment facilities.

• Speed and Tension Control: Used in paper mills and textile machinery to maintain constant tension on materials via variable frequency drive feedback.

• Weight and Level Sensing: Connecting to load cells or ultrasonic level sensors for accurate ingredient batching and silo management.

• Environmental Monitoring: Tracking humidity, CO2 levels, and air quality in cleanrooms and commercial HVAC building automation.

Important Precautions

To ensure accurate data and prevent hardware failure, the following guidelines must be followed:

• Shielded Cabling: Always use twisted-pair shielded cables for analog signals. Ground the shield at only one point—typically the module side—to avoid creating ground loops.

• Wiring Separation: Keep analog signal lines separate from high-voltage AC power lines and motor cables to prevent electromagnetic interference from distorting readings.

• Input Range Matching: Ensure the module's internal dip switches or software settings match the actual sensor signal. Applying a 10V signal to a module set for 5V can cause data clipping or hardware damage.

• Unused Channels: Short-circuit the positive and negative terminals of any unused current input channels to prevent unstable readings and reduce electrical noise on the bus.

• Warm-up Time: For applications requiring maximum precision, allow the module and the PLC system to power on and stabilize for at least 30 minutes before performing calibration.

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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