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Mitsubishi QY81P - User Manual

Mitsubishi QY81P
158 pages
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I/O Module Type Building Block
User's Manual
QX10 QY10
QX10-TS QY10-TS
QX28 QY18A
QX40 QY22
QX40-S1 QY40P
QX40-TS QY40P-TS
QX40H QY41H
QX41 QY41P
QX41-S1 QY42P
QX41-S2 QY50
QX42 QY68A
QX42-S1 QY70
QX50 QY71
QX70 QY80
QX70H QY80-TS
QX71 QY81P
QX72 QY82P
QX80 QH42P
QX80-TS QX41Y41P
QX80H QX48Y57
QX81 QI60
QX81-S2
QX82
QX82-S1
QX90H

Table of Contents

Questions and Answers

  • T
    tmurrayAug 5, 2025
    What to do if a Mitsubishi Controller input signal does not turn off?
    • J
      Jonathan RuizAug 5, 2025
      If a Mitsubishi Controller input signal does not turn off, it could be due to several reasons: * Leakage current of the input switch. To resolve this, connect an appropriate resistor so that the voltage across the terminals of the input module will be less than the off voltage. Using a 0.1 to 0.47 F + 47 to 120? (1/2W) for the CR constant is recommended. * Drive by a limit switch with neon lamp. The suggested solution is the same as above, or you can create another independent display circuit. * Leakage current due to line capacity of wiring cable. The suggested solution is the same as the first point. However, leakage current is not generated when the power supply is located in the input equipment side.

Summary

SAFETY PRECAUTIONS

Precautions for Safe Operation

Covers safety guidelines for design, installation, wiring, startup, maintenance, and disposal.

1. GENERAL SPECIFICATIONS AND PRECAUTIONS FOR USE

Precautions for Use

Details safety and operational guidelines for various I/O modules, installation, and wiring.

2. INPUT MODULE SPECIFICATIONS

QX10 AC Input Module

Specifications for the QX10 AC input module.

QX40 DC Input Module

Specifications for the QX40 DC input module (positive common type).

QX40 H High-Speed Input Module

Specifications for the QX40H DC high-speed input module (positive common type).

3. OUTPUT MODULE SPECIFICATIONS

QY41 H Transistor High-speed Output Module

Specifications for the QY41H transistor high-speed output module (sink type).

4. I;O COMBINED MODULE

5. INTERRUPT MODULE

QI60 Interrupt Module

Specifications for the QI60 interrupt module.

9. SPRING CLAMP TERMINAL BLOCK

11. I;O MODULE TROUBLESHOOTING

Input Circuit Troubleshooting

Explains common problems and corrective actions for input circuits.

Output Circuit Troubleshooting

Explains common problems and corrective actions for output circuits.

Mitsubishi QY81P Specifications

General IconGeneral
ModelQY81P
Product SeriesMELSEC-Q Series
TypeTransistor output module
Number of Outputs32 points
Rated load current0.1A/point
Insulation methodPhotocoupler insulation
Operating temperature0 to 55°C
Storage temperature-25 to 75°C
Withstanding voltage500 VAC for 1 minute
SeriesMELSEC-Q Series
IsolationPhotocoupler
MountingDIN rail

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