Mitsubishi Electric QX40

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

QX40

Type

Digital input module

Application

I/O module

Used with

MELSEC-Q base units

Input type

DC input (positive common type)

Number of input points

16 points

Rated input voltage

24 V DC (+20/-15 %, ripple ratio within 5 %)

Rated input current

Approx. 4 mA

Maximum number of simultaneous input points

100 %

ON voltage/ON current

19 V or more/3 mA or more

OFF voltage/OFF current

11 V or less/1.7 mA or less

Input resistance

Approx. 5.6 kΩ

Input response time, OFF to ON

1 ms, 5 ms, 10 ms, 20 ms, 70 ms or less

Input response time, ON to OFF

1 ms, 5 ms, 10 ms, 20 ms, 70 ms or less

Input common terminal arrangement

16 points/common

Isolation method

Photocoupler

Dielectric withstand voltage

560 V AC rms/3 cycles (altitude 2000 m)

Insulation resistance

10 MΩ or higher by insulation resistance tester

Protection degree

IP2X

Operation indication

ON indication (LED)

External interface,

18-point terminal block (M3 screw)

Number of occupied I/O points

16 points (I/O assignment: Input 16 points)

Internal current consumption (5 V DC)

50 mA (TYP. all points ON)

External dimensions, Height

98 mm

External dimensions, Width

27.4 mm

External dimensions, Depth

90 mm

Weight

0.16 kg

General specifications

Refer to the general specifications of the CPU module.

Technical documents (1)

• Mitsubishi Electric specification database, QX40

Key features

• Input type: DC input (positive common type)
• Number of input points: 16 points
• Rated input voltage: 24 V DC (+20/-15 %, ripple ratio within 5 %)
• Rated input current: Approx. 4 mA
• Maximum number of simultaneous input points: 100 %

About the Mitsubishi Electric QX40

The Mitsubishi Electric QX40 is a MELSEC-Q input module. Mitsubishi Electric's overview: DC input: 16 points, 24 V DC 4 mA, response time: 1/5/10/20/70 ms, 16 points/common, positive common type, 18-point terminal block. Mitsubishi Electric names the RX40C7 as its replacement model.

What is the QX40 used for?

The QX40 mounts on a MELSEC-Q base unit and connects field signals to the CPU, which reads or writes them each cycle.

Lifecycle and successor

Phased out.

OEM successor: RX40C7

Before you order

What to photograph or confirm so the right unit is quoted.

Check the model name QX40 on the rating plate, with the serial number and function version. Send us a photo of the rating plate and we will confirm the details before quoting.