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QD75P4N

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Mitsubishi Electric QD75P4N is a four-axis open-collector positioning module for MELSEC-Q systems with interpolation and stored positioning data.
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Technical specifications for QD75P4N

  • Manufacturer:
    Mitsubishi
  • Part Number:
    QD75P4N
  • Product Family:
    Mitsubishi
  • Product Type:
    4-axis Positioning Module
  • Stock:
    1
  • PLC Platform:
    MELSEC-Q
  • Controlled Axes:
    4
  • Output Interface:
    Open collector pulse train
  • Maximum Output Pulse:
    200 kpps
  • Interpolation:
    Linear, circular and helical
  • Positioning Data Capacity:
    600 data items per axis
  • Units:
    mm, inch, degree or pulse
  • Backup:
    Flash ROM, batteryless
  • Occupied I/O Points:
    32
  • Internal Current Consumption:
    0.36 A at 5 VDC
  • Servo Cable Distance:
    Up to 2 m
  • Weight:
    0.16 kg
  • Estimated shipping dimensions:
    9.8 x 2.74 x 9 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Axis Configuration Motion Commissioning Fault Isolation Product Applications

Features:

  • Four-axis control: One Q-series module coordinates multiple pulse-train servo axes.
  • Stored motion data: Positioning tables and parameters are retained in module configuration and must be backed up with the PLC project.
  • Interpolation support: Coordinated paths depend on correct axis mapping, scale and mechanical direction.
QD75P4N is used where a MELSEC-Q controller must issue open-collector positioning commands to several motion axes.

Its application identity includes the stored motion data, axis parameters and connector wiring, not just the module catalog number.

Commissioning begins with inhibited or uncoupled motion and progresses from individual direction checks to coordinated path testing.

Apter Power can help confirm the Mitsubishi Electric QD75P4N 4-axis Positioning Module, Q-series platform and axis-interface scope before quotation.
Mitsubishi Electric QD75P4N 4-axis Positioning Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Project capture: Save positioning data, parameters and the PLC sequence that starts each motion.
  • Axis identity: Map every connector channel to its servo amplifier and mechanical mechanism.
  • Scale check: Confirm pulse-per-unit and direction settings against the machine drawing.
  • Limit logic: Preserve hardware and software travel limits before any powered movement.
  • Drive inhibit: Keep power stages disabled while connector and signal states are first checked.
  • Single-axis proof: Test direction, distance and limits one channel at a time at reduced speed.
  • Interpolation proof: Enable coordinated moves only after every constituent axis is correct.
  • Stop response: Verify emergency and normal stopping paths under the site safety procedure.
  • No movement: Compare PLC start conditions, module status, pulse output and drive readiness.
  • Wrong distance: Review electronic gearing, unit selection and pulse scaling before adjusting mechanics.
  • Axis swap: Trace both connectors and channel assignments when motion occurs on the wrong mechanism.
  • Path error: Inspect interpolation data and coordinate selection after individual axes pass.
  • Indexing equipment: Commands several servo axes through stored positioning sequences.
  • Packaging motion: Coordinates feeds, cutters or transfer mechanisms from a Q-series controller.
  • Assembly machinery: Executes repeatable point-to-point and interpolated moves.
  • Legacy motion maintenance: Restores an installed open-collector positioning channel with its project data.
Description
QD75P4N executes multi-axis positioning commands from a MELSEC-Q system through four open-collector pulse-train channels.

The stored positioning data and interpolation functions in QD75P4N support coordinated motion, but correct operation also depends on axis parameters, servo-interface wiring and PLC sequence control.

Before replacing QD75P4N, capture the project and motion data, label both connectors and prove each axis independently before enabling coordinated machine movement.
Alternative Names
QD75P4N QD75 P4N
Technical notes
QD75P4N can command four axes, so a connector swap, pulse polarity error or restored parameter mismatch can create unexpected motion on more than one mechanism. Isolate drives from hazardous travel, preserve the positioning-data project, verify axis direction and limits one channel at a time, then test interpolation at reduced speed.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
A QD75P4N replacement is installed but the wrong mechanism moves. What should be stopped and checked?
Inhibit all drives and trace each connector channel, PLC axis assignment and servo amplifier before issuing another command.
Can QD75P4N be accepted after one axis completes a move correctly?
No. Prove all axes independently, then test coordinated moves, limits and stop behavior at reduced speed.
A QD75P4N command travels the correct direction but the wrong distance. Which settings are relevant?
Compare unit selection, pulses per unit, electronic gearing and stored positioning data with the verified machine project.
Why should QD75P4N project data be backed up separately from the physical module?
The motion behavior depends on parameters and positioning tables. Matching hardware without the correct data does not restore the application.
A servo is ready but QD75P4N produces no motion. Where should diagnostics begin?
Check the PLC start sequence, module status, axis error, pulse output, drive-enable path and limit conditions in that order.
Can a different QD75 output type replace QD75P4N if it controls the same number of axes?
Not automatically. The electrical output interface, connector wiring, drive compatibility and project configuration must all match.