Mitsubishi AX21 I/O Module for MELSEC-F FX3S Series

The Mitsubishi AX21 (AX21) is an entry-level programmable logic controller CPU module with integrated I/O designed for Mitsubishi Electric MELSEC-F FX3S series automation systems, functioning equivalent to FX3S10MTESS. This compact controller provides 10 integrated digital inputs and outputs, consisting of 6 digital inputs rated for 24 V DC with sink/source logic selection and 4 digital transistor outputs rated for 5 to 30 V DC source logic with a 500 mA load capacity and a fast 0.2 ms response time. It is engineered with a built-in EEPROM program memory capacity of 4,000 steps for reliable application storage without battery backup requirements. Operating on a universal supply voltage of 100 to 240 V AC (accommodating 120, 208, 220, and 230 V AC systems), the module delivers dependable control performance across manufacturing, packaging, conveying, and dedicated machine automation tasks.