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Mitsubishi QX41 MELSEC-Q Digital Input Module for PLC Control Systems
| Place of Origin | Japan |
| Brand Name | Mitsubishi |
| Model Number | QJ71E71-100 |
Product Overview
Mitsubishi QX41 is a MELSEC-Q series digital input module used in PLC control systems, machine automation cabinets, production line equipment, and factory maintenance replacement projects. It is designed to collect discrete field signals from sensors, switches, relay contacts, push buttons, limit switches, and machine status devices, then send these signals to the Q series PLC system for logic processing.
This model is a common spare part for existing MELSEC-Q systems. Digital input modules are frequently required in factory maintenance because input signal failure can affect machine start conditions, safety interlocks, alarm detection, position confirmation, and automatic sequence control. QX41 is therefore suitable for upload as a high-value I/O replacement product page.
Main Features
- MELSEC-Q series digital input module
- Used for discrete signal acquisition in PLC systems
- Suitable for sensors, switches, contacts, and machine status signals
- Applied in production lines, machine panels, and automation cabinets
- Common replacement module for factory maintenance and equipment repair
Technical Specifications
| Model | QX41 |
| Brand | Mitsubishi |
| Series | MELSEC-Q |
| Product Type | Digital Input Module |
| Function | Discrete Input Signal Acquisition |
| Input Type | DC Digital Input, confirm by installed system |
| Application | PLC Input Signal Monitoring and Machine Control |
| Replacement Check | Confirm input voltage, wiring method, terminal type, slot position, and PLC project |
Compatible System and Applications
QX41 is used in MELSEC-Q PLC systems together with Q series CPU modules, power supply modules, base units, output modules, analog modules, and communication modules. It is suitable for packaging machines, conveyors, material handling systems, assembly equipment, machine tools, utility panels, and general factory automation systems.
Maintenance and Replacement Notes
Before replacing QX41, confirm the complete model number, input voltage, field wiring, terminal connection, common wiring method, base unit slot, and PLC program configuration. Input faults may also be caused by sensor failure, loose terminals, cable damage, field power problems, or incorrect wiring logic.
Related Models
Related models include QX41, QX42, QX40, QX40-S1, QX41-S1, QX42-S1, QY40P, QY41P, QY42P, and QY50. These modules may differ by input or output type, point count, voltage specification, connector type, common wiring, and application environment.
Inquiry and Supply Notes
DF Automatic supplies Mitsubishi MELSEC-Q digital input modules, output modules, analog modules, CPU modules, communication modules, power supplies, base units, HMI panels, servo systems, inverter drives, and industrial automation spare parts for factory maintenance and PLC system repair.
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