Mitsubishi Electric QX21L

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

QX21L

Type

Digital input module

Application

I/O module

Used with

MELSEC-Q base units

Input type

AC input

Number of input points

32 points

Rated input voltage, frequency

200...240 V AC (+10/-15 %), 50/60 Hz (±3 Hz)

Input voltage distortion

Within 5 %

Rated input current

10 mA (220 V AC, 60 Hz)

Maximum number of simultaneous input points

100 % (at 264 V AC, 45 ˚C); 60 % (at 264 V AC, 55 ˚C)

Inrush current

Maximum 600 mA, within 0.12 ms (at 264 V AC)

ON voltage/ON current

160 V AC or more/5.5 mA or more

OFF voltage/OFF current

70 V AC or less/3.5 mA or less

Input impedance

Approx. 22 kΩ (60 Hz), approx. 27 kΩ (50 Hz)

Input response time, OFF to ON

15 ms or less

Input response time, ON to OFF

25 ms or less

Input common terminal arrangement

32 points/common

Isolation method

Photocoupler

Dielectric withstand voltage

1500 V AC for 1 minute

Operation indication

ON indication (LED)

External interface,

38-point terminal block connector (terminal block is sold separately)

Number of occupied I/O points

32 points (I/O assignment: Input 32 points)

Internal current consumption (5 V DC)

75 mA (TYP. all points ON)

External dimensions, Height

220 mm

External dimensions, Width

37.5 mm

External dimensions, Depth

116.5 mm

Weight

0.33 kg

General specifications

Refer to the general specifications of the CPU module.

Technical documents (1)

• Mitsubishi Electric specification database, QX21L

Key features

• Input type: AC input
• Number of input points: 32 points
• Rated input voltage, frequency: 200...240 V AC (+10/-15 %), 50/60 Hz (±3 Hz)
• Input voltage distortion: Within 5 %
• Rated input current: 10 mA (220 V AC, 60 Hz)

About the Mitsubishi Electric QX21L

The Mitsubishi Electric QX21L is a MELSEC-Q input module. Mitsubishi Electric's overview: AC input: 32 points, 200...240 V AC 10 mA (220 V AC, 60 Hz), response time: 25 ms, 32 points/common, 38-point terminal block (terminal block sold separately), replacement model: AX21.

What is the QX21L used for?

The QX21L 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.

Before you order

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

Check the model name QX21L 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.