Mitsubishi 1S-VD03E-01 AC Digital Input Module for MELSEC-F FX Series

The Mitsubishi 1S-VD03E-01 (1S-VD03E-01) is an AC digital input module board designed for use with Mitsubishi Electric MELSEC-F (FX) series programmable logic controllers. Functioning as an expansion input interface, this legacy unit provides 16 digital AC inputs (16 I/O points) to receive high-voltage alternating current status signals from field sensors, pushbuttons, limit switches, and control contacts, converting them into internal logic levels for the central processing unit. It serves as an equivalent replacement for the FX16EXA1TBUL terminal block expansion unit. Engineered for integration into industrial automation control cabinets and machinery driven by MELSEC-F series PLCs, the 1S-VD03E-01 enables reliable discrete signal acquisition in diverse manufacturing, packaging, and material handling applications. As a discontinued spare part, it allows facilities to maintain and repair existing Mitsubishi PLC installations without requiring complete system redesigns or controller migrations. The module ensures dependable input isolation, secure wiring connectivity, and stable signal processing in demanding industrial environments.