QD62 24VDC MITSUBISHI

QD62 24VDC MITSUBISHI Digital Input Module

Product  Description：

Mitsubishi Digital Input Modules serve as the interface between external input devices—such as push buttons, limit switches, and sensors—and the PLC’s CPU. These modules convert high-level electrical signals (typically 24V DC or 100-240V AC) from the field into logic-level signals that the processor can interpret.

Most Mitsubishi modules feature optocoupler isolation, which protects the sensitive internal CPU circuitry from high-voltage spikes and electrical noise common in factory environments. They are available in various densities, ranging from 16-point modules for small tasks to 64-point high-density modules for complex machinery, often utilizing either screw terminal blocks or 40-pin connectors for wiring.

Product Parameters

While specific values vary by model (such as the RX41C4 or QX40), the following represent the standard parameters found across the product line:

• Number of Input Points: Available in 16, 32, or 64 points per module.

• Input Voltage: Commonly 24V DC (positive/negative common) or 100V to 240V AC.

• Input Current: Typically 4mA to 6mA per point for DC inputs.

• Response Time: Configurable software filters allowing for high-speed detection (e.g., 0.1ms to 70ms).

• Isolation Method: Photocoupler isolation is standard to ensure signal integrity.

• Common Terminal: Options for 16 points/common or 32 points/common depending on the density.

• Connection Type: Removable terminal blocks, D-sub connectors, or high-density 40-pin connectors.

• Internal Current Consumption: Varies by model, usually ranging from 50mA to 120mA from the backplane.

Product Advantages

Mitsubishi electric components are favored in the industry for several specific reasons:

• High-Speed Processing: The modules support incredibly fast response times, which is essential for high-speed packaging or precision motion control.

• Noise Immunity: Superior filtering and isolation techniques ensure that electromagnetic interference (EMI) from motors and drives does not cause false triggering.

• Compact Form Factor: High-density modules allow for more I/O points in a smaller cabinet footprint, reducing overall hardware costs.

• Diagnostic Capabilities: Many newer modules include LED indicators for every point and internal diagnostics that can report wire breakage or short circuits to the CPU.

• Durability: Built to withstand harsh industrial vibrations and a wide range of operating temperatures.

Precautions for Use

To ensure the longevity of the module and the safety of the system, consider the following:

• Voltage Matching: Always verify that the input signal voltage matches the module’s rated voltage. Applying 220V AC to a 24V DC module will cause permanent hardware damage.

• Polarity Awareness: For DC modules, ensure the "Common" (COM) terminal is wired correctly for Sink or Source logic, as miswiring will result in the PLC failing to detect inputs.

• Inductive Load Protection: When inputs are connected to inductive devices like large contactors or relays, use external surge suppressors to prevent back-EMF from damaging the input optocouplers.

• Wiring Separation: Keep input signal wires separate from high-voltage power lines or motor drive cables to prevent capacitive coupling and "ghost" signals.

• Terminal Tightening: Ensure terminal screws are tightened to the specified torque; loose connections can lead to intermittent signal loss and overheating.

Product Applications

Mitsubishi Digital Input Modules are used across nearly every sector of modern manufacturing:

• Automotive Assembly: Tracking the position of car chassis on a conveyor using proximity sensors and limit switches.

• Packaging Machinery: Detecting the presence of bottles or boxes to trigger filling and sealing actions.

• Semiconductor Manufacturing: Interfacing with high-precision sensors in cleanroom environments where high-speed data acquisition is critical.

• Material Handling: Managing inputs from safety light curtains and emergency stop buttons to ensure operator safety.

• Water Treatment: Monitoring float switches and pressure sensors to regulate pump operations across large-scale facilities.

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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