Mitsubishi FX3U-4DA MELSEC-F 4‑Channel Analog Output Module

Mitsubishi Electric FX3U‑4DA is a 4‑channel analog output special function block for FX3U series PLC systems. Converts digital values from the PLC into analog voltage or current signals for precise control of inverters, valves, actuators and other field devices. High‑precision 15‑bit resolution (voltage includes sign bit) with 0.32 mV voltage resolution and 0.63 µA current resolution. 1 ms conversion speed for all 4 channels. Built‑in table output function, upper/lower limit monitoring, and offset/gain adjustment per channel. Photocoupler and DC/DC converter dual isolation design. DIN rail mounting, screw‑clamp terminal block.

Applications:

• Variable frequency drive speed reference and control

• Proportional valve and electric actuator positioning

• Process control analog signal generation (4‑20 mA loops)

• Packaging machinery and industrial automation systems

Core Specifications:

• Number of analog outputs: 4 (independent channel configuration)

• Output ranges: –10 to +10 V DC (voltage), 0‑20 mA / 4‑20 mA DC (current)

• Resolution: 15‑bit binary + sign (voltage), 15‑bit binary (current)

• Voltage resolution: 0.32 mV (20 V × 1/64000)

• Current resolution: 0.63 µA (20 mA × 1/32000)

• Accuracy: ±0.3% of full scale (at 25 ±5 °C)

• Conversion speed: 1 ms (all channels simultaneously)

• Occupied I/O points: 8

Advanced Specifications:

• Output modes: settable for each channel (voltage or current)

• Load resistance: Voltage 1 kΩ to 1 MΩ, Current ≤ 500 Ω

• Isolation: Photocoupler isolation between analog output area and PLC; DC/DC converter insulation for power supply (no channel‑to‑channel isolation)

• Functions: Table output, upper/lower limit monitoring, offset/gain adjustment per channel

• Power supply: 5 V DC, 120 mA (from main unit) / 24 V DC ±10%, 160 mA (external)

• Protection rating: IP20

• Dimensions (H × W × D): 90 mm × 55 mm × 87 mm

• Weight: approx. 0.2 kg

• Operating temperature: 0 °C … 55 °C

• Storage temperature: –20 °C … 70 °C

Compatibility information:

• Compatible with FX3G, FX3GE, FX3GC, FX3U, FX3UC series PLCs

• Connects directly to the right side of FX3U main unit or extension unit

• When connecting to FX3UC or FX3GC, requires FX2NC‑CNV‑IF or FX3UC‑1PS‑5V

• For FX5U/FX5UC connection, refer to manufacturer documentation

Buffer Memory (BFM) Functions:

• BFM #0: Output mode setting per channel (voltage/current)

• BFM #1 – #4: Digital value output data for channels 1 – 4

• BFM #10 – #13: Offset data per channel

• BFM #14 – #17: Gain data per channel

• BFM #71 – #74: Lower limit error setting

• BFM #81 – #84: Upper limit error setting

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information (CE, UL/cUL, KC, RoHS).

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• FX3U‑4DA‑ADP – Analog output adapter for FX3G/FX3U series

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