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Q68AD-G Mitsubishi Universal model Redundant Power Supply Module
Q68AD-G Description
The Mitsubishi Q68AD-G is a high-performance analog-to-digital (A/D) conversion module designed for the MELSEC Q Series of Programmable Logic Controllers (PLCs). This module is engineered to receive analog voltage or current signals from field instruments (such as sensors and transmitters) and convert them into high-resolution digital values for processing within the CPU. It is a critical component for industrial automation applications requiring precise monitoring and control of process variables like temperature, pressure, flow, and level. The Q68AD-G offers high accuracy, fast conversion speeds, and robust reliability, making it suitable for complex and demanding industrial environments.
Q68AD-G Features
1.High Channel Density: Provides 8 analog input channels in a single module slot, saving space in the PLC base unit.
2.High Resolution: Offers a exceptional resolution of 1/60,000, ensuring highly accurate digital representation of analog signals for precise control.
3.Flexible Input Ranges: Supports a wide selection of analog input ranges, including:
•Voltage: -10 to +10 V DC, 0 to 5 V DC, 1 to 5 V DC, etc.
•Current: 0 to 20 mA DC, 4 to 20 mA DC (with built込 fault detection for 4-20mA signals).
4.Fast Conversion Speed: Achieves a high-speed conversion of 80 µs per channel, allowing for rapid system response to process changes.
5.Built-in Functions: Includes advanced functions such as scaling, input signal error detection (wire break, overrange/underrange), and sampling processing, simplifying program logic.
6.Easy Setup: Can be easily configured using GX Works2, Mitsubishi's integrated engineering software, for setting parameters without complex programming.
Q68AD-G Material & Applications
•Material: The module is constructed with a robust plastic housing and a metal connector for durability. The internal circuitry uses high-quality electronic components to ensure stable operation in industrial conditions.
•Primary Applications: Widely used in various industries for process automation, including:
•Factory Automation: Monitoring motor speeds, pressure in hydraulic/pneumatic systems.
•Environmental Control: Measuring temperature and humidity in HVAC systems.
•Water and Wastewater Treatment: Monitoring pH levels, flow rates, and tank levels.
•Food and Beverage: Controlling process variables like temperature and fill levels.
Q68AD-G Important Parameters
The key specifications for the Mitsubishi Q68AD-G module are summarized in the table below.
Parameter
Specification
Model
Q68AD-G
Product Type
Analog Input Module
Number of Channels
8 channels
Input Signal
Voltage / Current (selectable per channel)
Rated Input Range (Voltage)
-10 to +10 V DC, 0 to 5 V DC, 1 to 5 V DC, etc.
Rated Input Range (Current)
0 to 20 mA DC, 4 to 20 mA DC
Digital Output Resolution
16-bit signed binary (Effective resolution: 1/60,000)
Conversion Speed
80 µs/channel
Accuracy (at 25°C)
±0.1% (of full scale)
Isolation Method
Photocoupler isolation between analog and digital circuits. No isolation between channels.
Supported PLC Series
MELSEC Q Series
Required Power Supply
5V DC (from the main base unit or extension power module)
External Wiring Method
40-pin connector (Requires a separate connector block, e.g., A6CON1/2)
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