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16‑Point 24V DC Input Module (4mA, Sink Type, 16 Points/Common)
Product Overview
The Mitsubishi QX40 is a 16‑point digital input module for the MELSEC‑Q Series PLC三菱電機 Mitsubishi Electric. It receives 24V DC discrete signals from field devices (sensors, switches, relays) and converts them into logic signals for the PLC CPUMITSUBISHI ELECTRIC. Sink type (positive common, +24V common), 16 points share one common terminal, with 4mA typical input current per channel三菱電機 Mitsubishi Electric.
Key Advantages (Core Features)
16‑Channel Sink Input: 16× isolated DC inputs, sink (positive common); ideal for NPN sensors and dry‑contact devices.
Low Current Consumption: 4mA per channel (typ.), low power load on 24V DC supply三菱電機 Mitsubishi Electric.
Adjustable Response Time: Selectable 1/5/10/20/70ms (default 10ms) for noise filtering or high‑speed captureMITSUBISHI ELECTRIC.
Photocoupler Isolation: Each input isolated by photocoupler; 560V AC / 3 cycles isolation withstand voltage, protects PLC from field noiseMITSUBISHI ELECTRIC.
Compact & Standardized: 27.4×98×90mm, 0.16kg; standard Q‑series size, easy panel mounting and replacementMitsubishi Electric Europe e-shop.
LED Status Indication: Built‑in LED per channel for ON/OFF status, simplifies wiring and maintenanceMITSUBISHI ELECTRIC.
Technical Specifications
表格
Parameter
Specification
Model
QX40
Series
MELSEC‑Q PLC
Input Type
DC input, sink (positive common)
Number of Inputs
16 points
Rated Voltage
24V DC (range: 20.4–28.8V DC)MITSUBISHI ELECTRIC
Input Current
4mA per channel (typ.)三菱電機 Mitsubishi Electric
ON Threshold
≥19V DC / ≥3mAMITSUBISHI ELECTRIC
OFF Threshold
≤11V DC / ≤1.7mAMITSUBISHI ELECTRIC
Input Resistance
Approx. 5.6kΩMITSUBISHI ELECTRIC
Response Time
1/5/10/20/70ms (selectable)MITSUBISHI ELECTRIC
Isolation
Photocoupler isolation, 560V AC / 3 cyclesMITSUBISHI ELECTRIC
Terminal Block
18‑point, M3 screw (QX40‑TS: spring clamp)
Internal Current Draw
50mA (all points ON, typ.)MITSUBISHI ELECTRIC
Dimensions (W×H×D)
27.4 × 98 × 90 mmMitsubishi Electric Europe e-shop
Weight
0.16 kgMitsubishi Electric Europe e-shop
Operating Temperature
0 ~ +55°CMITSUBISHI ELECTRIC
Approvals
CE, UL/cUL, RoHS, KC三菱電機 Mitsubishi Electric
Application Industries & Scenarios
Factory Automation: Production line signal collection, limit switches, proximity sensors, pushbuttons.
Packaging Machinery: Bagging, labeling, and sealing machine input sensing.
Material Handling: Conveyor belt start/stop, photo‑electric sensors, emergency stop signals.
Machine Tools: CNC machine peripheral switch and sensor input.
Building Automation: Door/window sensors, access control signals, safety interlocks.
Compliance
Designed to meet ECER requirements (ECE R10 EMC) and compliant with EU directives, ensuring electromagnetic compatibility and safety for global industrial deployment.
