Mitsubishi Electric Q68AD-G

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

Q68AD-G

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, Voltage

-10...+10 V DC (input resistance 1 MΩ or more)

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; (When the scaling function is used: -32768...32767)

I/O characteristics, resolution, Input range

Digital output value (resolution)

I/O characteristics, resolution, Voltage input, 0...10 V

Normal resolution mode: 0...4000 (2.5 mV); High resolution mode: 0...16000 (0.625 mV)

I/O characteristics, resolution, Voltage input, 0...5 V

Normal resolution mode: 0...4000 (1.25 mV); High resolution mode: 0...12000 (0.416 mV)

I/O characteristics, resolution, Voltage input, 1...5 V

Normal resolution mode: 0...4000 (1.0 mV); High resolution mode: 0...12000 (0.333 mV)

I/O characteristics, resolution, Voltage input, 1...5 V (extended mode)

Normal resolution mode: -1000...4500 (1.0 mV); High resolution mode: -3000...13500 (0.333 mV)

I/O characteristics, resolution, Voltage input, -10...10 V

Normal resolution mode: -4000...4000 (2.5 mV); High resolution mode: -16000...16000 (0.625 mV)

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

Normal resolution mode: -4000...4000 (0.375 mV); High resolution mode: -12000...12000 (0.333 mV)

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, 4...20 mA (extended mode)

Normal resolution mode: -1000...4500 (4 µA); High resolution mode: -3000...13500 (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), Reference accuracy

±0.1 %

Accuracy (accuracy relative to maximum value of the digital output value), Temperature coefficient

±71.4 ppm/˚C (0.00714 %/˚C)

Common mode characteristic

Common mode voltage Input-Common ground (input voltage 0 V): 500 VAC; Common mode voltage rejection ratio (VCM

Sampling cycle

10 ms/1 channel

Response time

20 ms

Absolute maximum input, Voltage

±15 V

Absolute maximum input, Current

±30 mA

Isolation method

Between input terminals and programmable controller power supply, between analog input channels: Transformer

Dielectric withstand voltage

Between input terminals and programmable controller power supply: 500 V AC rms for 1 minute; Between analog input channels: 1000 V AC rms for 1 minute

Insulation resistance

Between input terminals and programmable controller power supply, between analog input channels: 500 V DC, 10 MΩ or higher

Technical documents (1)

• Mitsubishi Electric specification database, Q68AD-G

Key features

• Number of analog input points: 8 points (8 channels)
• Analog input, Voltage: -10...+10 V DC (input resistance 1 MΩ or more)
• Analog input, Current: 0...20 mA DC (input resistance 250 Ω)
• I/O characteristics, resolution, Input range: Digital output value (resolution)
• Accuracy (accuracy relative to maximum value of the digital output value), Reference accuracy: ±0.1 %

About the Mitsubishi Electric Q68AD-G

The Mitsubishi Electric Q68AD-G is a MELSEC-Q analogue input module. Mitsubishi Electric's overview: 8 channels, input: -10...10 V DC, 0...20 mA DC, output (resolution): 0...4000, -4000...4000, 0...12000, -12000...12000, 0...16000, -16000...16000, conversion speed: 10 ms/channel, 40-pin connector, channel isolated. Mitsubishi Electric names the R60AD8-G as its replacement model.

What is the Q68AD-G used for?

The Q68AD-G 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: R60AD8-G

Before you order

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

Check the model name Q68AD-G 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.