IS74-0.4K MITSUBISHI

IS74-0.4K MITSUBISHI Analog Output Modules

Product  Description：

Mitsubishi Electric Analog Output Modules are precision instruments designed for use with the MELSEC PLC series. These modules convert digital values processed by the PLC CPU into continuous analog signals, such as voltage or current. This conversion is essential for controlling devices that require variable levels of input rather than simple on/off commands, allowing for smooth, proportional control of industrial equipment.

Product Parameters

The technical performance of these modules is defined by their precision and signal range capabilities:

• Output Channels: Available in configurations ranging from 2 to 8 channels per module to accommodate various system scales.

• Signal Ranges: Supports standard industrial signals including Voltage (-10V to +10V DC, 0V to 5V DC) and Current (4mA to 20mA DC, 0mA to 20mA DC).

• Resolution: High-precision conversion typically ranging from 12-bit to 16-bit (up to 1/32,000 digital resolution), ensuring fine-grained control.

• Conversion Speed: Fast response times, often reaching 80 microseconds to 1 millisecond per channel, depending on the specific model.

• Accuracy: High linearity with an overall accuracy of ±0.1% to ±0.3% of the full scale at room temperature.

• Isolation: Built-in galvanic isolation between the output channels and the internal PLC bus to prevent electrical interference.

Product Advantages

Mitsubishi Analog Output Modules offer several distinct benefits for complex automation tasks:

• High-Speed Conversion: The rapid processing capabilities enable real-time control of sensitive processes where signal lag could cause system instability.

• Enhanced Safety Features: Many modules include an "Output Hold/Clear" function, which allows the user to pre-determine whether the analog signal should stay at its last value or drop to zero if the PLC CPU stops.

• Ease of Configuration: Settings such as signal range and scaling can be easily adjusted through the GX Works software without the need for manual potentiometers or hardware jumpers.

• Scaling Function: Integrated digital scaling allows the user to define output values in engineering units (e.g., liters per minute or degrees Celsius) rather than raw digital bits.

• Error Detection: Advanced diagnostics can detect disconnected wires or external power supply failures, reporting these errors directly to the PLC for immediate action.

Product Applications

These modules are used in any scenario requiring variable control over a device's operation:

• Motor Speed Control: Sending speed reference signals to Variable Frequency Drives (VFDs) to manage the rotation of pumps, fans, and conveyors.

• Valve Positioning: Controlling the opening percentage of proportional valves in chemical processing or water treatment plants to regulate flow.

• Temperature Regulation: Operating power regulators or heaters to maintain precise thermal conditions in industrial ovens or environmental chambers.

• Lighting Control: Dimming high-power lighting systems in large-scale commercial buildings or specialized manufacturing stages.

• Tension Control: Managing the torque and speed of rollers in paper, plastic, or textile winding machines to prevent material breakage.

Important Precautions

To ensure accurate signal transmission and prevent hardware damage, the following precautions are critical:

• Shielded Wiring: Always use shielded twisted-pair cables for analog signal lines to minimize the impact of electromagnetic interference from nearby power cables.

• Grounding Strategy: Connect the shield of the cable to the ground terminal at the module side only (single-point grounding) to avoid ground loops that can introduce signal noise.

• External Power Supply: Many analog modules require an external 24V DC power supply for the output circuitry. Ensure this power is stable and within the specified voltage tolerance.

• Separation of Lines: Keep analog signal wiring separate from high-voltage AC lines. If they must cross, do so at a 90-degree angle to reduce inductive coupling.

• Load Resistance: Verify that the resistance of the connected device (the load) is within the module's allowable range. For current outputs, exceeding the maximum load resistance will result in an inaccurate signal.

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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