QX41 32-Point Digital Input Module 24V DC Sink FCN | Mitsubishi Electric

The Original New Mitsubishi Electric QX41 is a 32-point digital input module from the MELSEC-Q series, designed for high-density signal acquisition in industrial automation systems. It accepts 24 V DC sink (positive common) signals from field devices such as sensors, limit switches, pushbuttons, and proximity switches, converting them into digital data for the PLC CPU. The module uses a 40-pin FCN connector for field wiring and features photocoupler isolation between input terminals and the internal circuit. With selectable input response times of 1/5/10/20/70 ms and a compact 27.4 mm width, the QX41 delivers reliable digital input performance for machine control, process automation, and factory automation applications requiring high point density.

Core Engineering Highlights:
32 digital inputs (24 V DC, sink, positive common) | 4 mA rated input current | 19 V or more / 3 mA or more ON voltage/current | 5.6 kΩ input resistance | Selectable response time: 1/5/10/20/70 ms | 32 points per common | 40-pin FCN connector | Photocoupler isolation | 75 mA @ 5 V DC internal current consumption | 27.4 × 98 × 90 mm | 0.15 kg

Key Features:

• Original New Mitsubishi Electric QX41 module

• 32 digital input channels, 24 V DC sink type (positive common)

• Input voltage range: 24 V DC (+20% / -15%), ripple ratio within 5%

• Rated input current: approximately 4 mA per point

• ON voltage/current: 19 V or more / 3 mA or more

• OFF voltage/current: 11 V or less / 1.7 mA or less

• Input resistance: approximately 5.6 kΩ

• Selectable input response time: 1/5/10/20/70 ms (default 10 ms, configured via PLC parameter)

• 32 points per common terminal

• Photocoupler isolation between input terminals and internal circuit

• Withstand voltage: 560 V AC rms for 3 cycles

• Insulation resistance: 10 MΩ or higher (insulation resistance tester)

• Protection rating: IP2X

• ON indication LED per point

• 40-pin FCN connector for field wiring

• Compact 27.4 mm width for high-density rack installation

Applications:

• Digital signal acquisition from sensors, limit switches, and pushbuttons

• High-density input expansion for MELSEC-Q series PLC systems

• Conveyor and material handling control

• Packaging machinery and assembly lines

• Factory automation and process control input panels

• Machine control systems requiring 32 discrete input points

Technical Specifications:

System Compatibility:

• Compatible with Mitsubishi Electric MELSEC-Q series programmable controllers. Module compatibility should be verified before installation.

• Installs in any MELSEC-Q series main base unit (Q3□B, Q5□B, Q6□B series) or extension base unit slot via the Q series backplane bus

• Compatible with Q series CPU modules (Q00J, Q00, Q01, Qn, QnH, QnPH, QnPRH, QnU series)

• Requires optional 40-pin FCN connector and A6CON1 (or A6CON2/A6CON3/A6CON4) terminal block conversion module for field wiring (sold separately)

• Input response time and other settings are configured in GX Works2 or GX Developer engineering software

Related Products:

• QX40 – 16-point DC input module, sink type, screw terminal

• QX41-S1 – 32-point high-speed DC input module (0.1/0.2/0.4/0.6/1 ms response)

• QX81 – 32-point DC input module, source type

• QY41P – 32-point transistor output module, source type

• A6CON1 – 40-pin FCN connector to screw terminal block conversion module

• A6TBXY36 – Terminal block conversion module for high-density I/O applications

• Q61P – Power supply module for Q series base unit

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Mitsubishi Electric and MELSEC are trademarks of Mitsubishi Electric Corporation.