Mitsubishi QX81

Mitsubishi QX81 – Digital Input Module

The Mitsubishi QX81 is a digital input module from the MELSEC System Q series, designed for high-speed and reliable signal acquisition from field devices such as sensors, switches, and push buttons. It is widely used in industrial automation systems requiring precise digital signal handling.

• Manufacturer: Mitsubishi Electric
• Model: QX81
• Series: MELSEC System Q
• Type: Digital Input Module
• Input Points: 32 points
• Input Voltage: 24 V DC (sink/source input type)
• Input Current: Approx. 7 mA per point
• Response Time: 10 ms (standard, selectable)
• Common Terminal Configuration: 4 points/common
• Isolation: Photocoupler isolation per input
• Connector Type: 40-pin connector (for external wiring)
• Mounting: Base rack installation
• Power Supply: Supplied via PLC backplane
• Dimensions: Approx. 98 x 27.4 x 90 mm (H x W x D)
• Weight: Approx. 150 g
• Operating Temperature: 0°C to +55°C
• Compliance: CE, UL, RoHS

The QX81 module is ideal for capturing fast digital signals with stability and precision, making it a dependable component for automation and machine control systems.