Mitsubishi Electric Q68ADI

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

Q68ADI

Type

Analog input module

Application

I/O module

Used with

MELSEC-Q base units

Number of analog input points

8 points (8 channels)

Analog input, Current

0...20 mA DC (input resistance 250 Ω)

Digital output,

Normal resolution mode: -4096...+4095; High resolution mode: -12288...+12287, -16384...+16383

I/O characteristics, resolution, Input range

Digital output value (maximum resolution)

I/O characteristics, resolution, Current input, 0...20 mA

Normal resolution mode: 0...4000 (5 µA); High resolution mode: 0...12000 (1.66 µA)

I/O characteristics, resolution, Current input, 4...20 mA

Normal resolution mode: 0...4000 (4 µA); High resolution mode: 0...12000 (1.33 µA)

I/O characteristics, resolution, Current input, User range setting

Normal resolution mode: -4000...4000 (1.37 µA); High resolution mode: -12000...12000 (1.33 µA)

Accuracy (accuracy relative to maximum value of the digital output value), Ambient temperature: 25±5 ﾟC

Within ±0.1 %

Accuracy (accuracy relative to maximum value of the digital output value), Ambient temperature: 0...55 ﾟC

With temperature drift correction: within ±0.3 %; Without temperature drift correction: within ±0.4 %

A/D conversion speed

80 µs/channel; (When there is temperature drift, the time calculated by adding 160 µs will be used regardless of the number of channels used)

Absolute maximum input, Current

±30 mA

Isolation method

Between I/O terminals and programmable controller power supply: Photocoupler; Between analog input channels: Non-isolation

Dielectric withstand voltage

Between I/O terminals and programmable controller power supply: 500 V AC for 1 minute

Insulation resistance

Between I/O terminals and programmable controller power supply: 500 V DC 20 MΩ or higher

External interface,

18-point terminal block (M3 screw)

Number of occupied I/O points

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

Internal current consumption (5 V DC)

0.64 A

External dimensions, Height

98 mm

External dimensions, Width

27.4 mm

External dimensions, Depth

90 mm

Weight

0.19 kg

General specifications

Refer to the general specifications of the CPU module.

Technical documents (1)

• Mitsubishi Electric specification database, Q68ADI

Key features

• Number of analog input points: 8 points (8 channels)
• Analog input, Current: 0...20 mA DC (input resistance 250 Ω)
• I/O characteristics, resolution, Input range: Digital output value (maximum resolution)
• Absolute maximum input, Current: ±30 mA
• External interface, : 18-point terminal block (M3 screw)

About the Mitsubishi Electric Q68ADI

The Mitsubishi Electric Q68ADI is a MELSEC-Q analogue input module. Mitsubishi Electric's overview: 8 channels, input: 0...20 mA DC, output (resolution): 0...4000, -4000...4000, 0...12000, -12000...12000, conversion speed: 80 μs/channel, 18-point terminal block. Mitsubishi Electric names the R60ADI8 as its replacement model.

What is the Q68ADI used for?

The Q68ADI 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: R60ADI8

Before you order

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

Check the model name Q68ADI 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.