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FX3U-4AD

The FX3U-4AD is a 4-channel analog input expansion module designed for Mitsubishi FX3U series PLCs, providing high-precision signal conversion for voltage and current inputs. This compact module enables precise monitoring of analog sensors in industrial automation systems.

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Key Features & Specifications
General Specifications
Model: FX3U-4AD

Compatibility: FX3U Series PLCs (connects via right-side expansion port)

Channels: 4 analog inputs (individually configurable)

Resolution: 12-bit (1/4096)

Isolation: Photocoupler isolation between analog circuits and PLC

Power Supply: 24V DC (from PLC or external)

Current Consumption: 30mA (5V DC), 90mA (24V DC)

Weight: 0.2kg

Analog Input Specifications
Input Types (per channel):

Voltage: -10V to +10V DC (200kΩ input impedance)

Current: 4-20mA / 0-20mA (250Ω input impedance)

Accuracy: ±1% full scale (voltage), ±1% full scale (current)

Conversion Speed: 15ms per channel (all 4 channels in 60ms)

Max. Allowable Input: ±15V (voltage), ±30mA (current)

Wiring & Configuration
Terminal Type: Screw terminals (removable)

Data Format:

Voltage: -2000 to +2000 (default for -10V to +10V)

Current: 0-1000 (default for 4-20mA)

Adjustment: Offset/gain calibration via PLC program

LED Indicators
POWER: Module power status

24V: External 24V power status

A/D Conversion: Active conversion indicator