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MELSEC-Q QD62

The Mitsubishi QD62 is a 2-channel high-speed counter module designed for the MELSEC-Q series PLC, capable of processing high-frequency pulse signals from encoders, sensors, or pulse-generating devices. It is widely used in applications requiring precise counting, speed measurement, and positioning control.

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Key Features
High-Speed Counting Performance

2 independent channels, each supporting:

200 kHz (single-phase input).

50 kHz (2-phase differential input).

32-bit binary/ring counting (up to ±2,147,483,647 counts).

Multiple Counting Modes

Up/Down counting (bidirectional movement tracking).

Linear counter (standard incremental counting).

Ring counter (configurable preset range for circular applications).

Input Compatibility

Supports 5/12/24 VDC (selectable per channel).

Differential line driver (A/B-phase) or single-phase input.

Noise-resistant design with photocoupler isolation.

Integration with MELSEC-Q PLC

Mounts on MELSEC-Q base unit (requires Q series CPU).

Configured via GX Works2/GX Works3 software.