The Mitsubishi FX3U-4AD-ADP User Manual provides installation, wiring, specifications, and safety information for the analog input special adapter.
This manual describes the FX3U-4AD-ADP analog input special adapter, a four‑channel analog input module for Mitsubishi FX series PLCs. It includes part names, dimensions, mounting details, wiring guidelines, and technical specifications.
Key sections cover safety precautions, installation steps, wiring recommendations, grounding, power‑supply wiring, and connection to the PLC. The document also lists performance data such as input ranges, accuracy, and conversion times, and provides disposal and transportation guidelines.
| Voltage input range | 0 to 10 V DC |
|---|---|
| Current input range | 4 to 20 mA DC |
| Input resistance (voltage) | 194 kΩ |
| Input resistance (current) | 250 Ω |
| Resolution | 2.5 mV (10 V/4000) |
| Total accuracy (voltage) | ±0.5 % (±50 mV) at 10 V |
| Dielectric withstand voltage | 500 V AC for one minute |
| Insulation resistance | 5 MΩ or higher |
| A/D conversion time (FX3U/FX3UC) | 200 µs |
| Grounding resistance | 100 Ω or less |
Use a 2‑core shielded twisted‑pair cable for the analog input lines and keep it separate from power or high‑voltage cables.
The tightening torque must be between 0.22 and 0.25 N·m.
Grounding resistance should be 100 Ω or less for best performance.