MITSUBISHI
Mitsubishi QX41 MELSEC-Q 32‑Point DC Input Module 24V Sink Type FCN Connector
Mitsubishi QX41 MELSEC-Q 32‑Point DC Input Module 24V Sink Type FCN Connector
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Mitsubishi Electric MELSEC‑Q series digital input module with 32 sink‑type channels rated at 24 V DC, positive common configuration. 32 points share a single common (common terminals B01 and B02). Selectable input response time via PLC parameters (1, 5, 10, 20, 70 ms). Photocoupler isolation between input terminals and PLC power supply. 40‑pin FCN connector interface, 0.15 kg, IP2X protection. For MELSEC‑Q series main base units and extension base units. Suitable for digital signal acquisition from sensors, limit switches, pushbuttons, and other NPN field devices in factory automation, machine control, and process automation systems.
Applications:
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Digital signal acquisition from NPN sensors, limit switches and pushbuttons
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High‑density input expansion for Q series PLC systems
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Conveyor systems, material handling and packaging machinery
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Factory automation and process control input panels
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Legacy system replacement and upgrade for MELSEC‑Q configurations
Core Specifications:
| Parameter | Specification |
|---|---|
| Number of input points | 32 (sink type, positive common) |
| Rated input voltage | 24 V DC (+20 % / –15 %, ripple ≤ 5 %) |
| Rated input current | Approx. 4 mA (at 24 V DC) |
| Input impedance | Approx. 5.6 kΩ |
| ON voltage / ON current | ≥ 19 V DC / ≥ 3 mA |
| OFF voltage / OFF current | ≤ 11 V DC / ≤ 1.7 mA |
| Response time | 1/5/10/20/70 ms (CPU parameter setting, default 10 ms) |
| Isolation method | Photocoupler isolation |
| Dielectric withstand voltage | 560 V AC rms for 3 cycles (altitude 2000 m) |
| Insulation resistance | ≥ 10 MΩ (insulation resistance tester) |
| Noise immunity | Simulator noise 500 Vp‑p, noise width 1 μs, 25‑60 Hz noise frequency; IEC 61000‑4‑4: 1 kV |
| Protection rating | IP2X |
| Common terminal arrangement | 32 points / 1 common (common terminals B01, B02) |
| Occupied I/O points | 32 points (I/O assignment: Input 32 points) |
| External connection | 40‑pin FCN connector (A6CON1, A6CON2, A6CON3, A6CON4 sold separately) |
| Applicable wire size | 0.088‑0.3 mm² |
| Internal current consumption (5 V DC) | 75 mA (TYP., all points ON) |
| Dimensions (H × W × D) | 98 mm × 27.4 mm × 90 mm |
| Weight | 0.15 kg |
| Operating temperature | 0 °C … 55 °C |
| Storage temperature | –20 °C … 75 °C |
| Certifications | CE, UL/cUL, ABS, BV, DNV GL, LR, NK, RINA, UKCA |
Advanced Specifications:
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Input derating curve available (operating ambient temperature vs. simultaneous ON points ratio)
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Operation indicator LED per input point
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Applicable for use with optional conversion modules (terminal block and relay terminal modules)
System Integration:
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This input module belongs to the Mitsubishi Electric MELSEC‑Q series.
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Installs into 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.
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Compatible with Q series CPU modules (Q00J, Q00, Q01, Qn, QnH, QnPH, QnPRH, QnU series).
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Requires optional 40‑pin connector cable and A6CON1 (or A6CON2/A6CON3/A6CON4) terminal block conversion module for field wiring (sold separately).
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When using high‑speed inputs, adjust the response time via PLC parameter settings.
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Input response time and other settings are configured in GX Works2 or GX Developer engineering software.
Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.
Related Products:
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QX81 – 32‑point DC input module (source type)
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QX40 – 16‑point DC input module (sink type, screw terminal)
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QY41P – 32‑point transistor output module (PNP)
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A6CON1 – 40‑pin FCN connector to screw terminal block conversion module
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A6TBXY36 – Terminal block conversion module for high‑density I/O applications
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