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Mitsubishi Electric QD75P4N — PLC I/O & Expansion Modules

Mitsubishi QD75P4N 4-Axis Positioning Unit, 200 kpps, Open Collector Output

MPNQD75P4N

Mitsubishi Electric MELSEC Q-Series QD75P4N Positioning Unit, 4-axis open collector output, 200 k pulse/s, 600 data per axis, DC 5 V 0.36 A, 3 kg.

$716.00 – $1,186.18Ref. price · indicative, final on quote
Mitsubishi Electric QD75P4N datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

QD75P4N — Specifications
ParameterValue
Product typePositioning Unit
Positioning data600 data / axis
Trajectory controlIncrement method / absolute method
Pulse output methodOpen collector output
1 axis speed control1.5 ms
Maximum output pulse200 k pulse / s
Number of control axes4 axes
DC 5 v internal current consumption0.36 A

Product details

The QD75P4N is a 4-axis positioning unit for the MELSEC Q-series PLC rack. It generates pulse trains to drive stepper or servo drives via open collector outputs, up to 200 k pulse/s per axis. Each axis can store 600 positioning data points, enough for multi-step motion profiles without constant PLC intervention. The unit sits on the Q bus and is addressed via the PLC's intelligent module configuration.

The module outputs up to 200 k pulse/s via open collector outputs. It consumes 0.36 A from the backplane and supports increment or absolute trajectory control.

The module weighs 3 kg. It consumes 0.36 A from the backplane. The open collector outputs require external pull-up resistors. It supports increment or absolute trajectory control.

Frequently asked questions

Does the QD75P4N support absolute position detection?

Yes. The trajectory control setting allows selection of increment method or absolute method. When using absolute positioning, the module expects a zero-point return signal from the machine or encoder to establish a home reference.

Can the QD75P4N output 200 kpps on all four axes simultaneously?

The maximum output pulse rating of 200 k pulse/s applies per axis. Whether all four axes can run at full speed concurrently depends on the total processing load and bus cycle timing; the module does not impose a shared lower limit, but your PLC scan time and axis dwell settings may cap aggregate throughput.

Does the QD75P4N require an external 24 V supply for its outputs?

The module draws 0.36 A from the 5 V internal bus only. The open collector outputs need an external pull-up voltage (typically 24 V DC) to generate the pulse signals; the module itself does not output 24 V.

MPN
QD75P4N