The PXF4ACY2-FW100 is a Micro-Controller X from Fuji Electric, configured with an SSR drive output on control output 1 and no second control output. Two alarm points are built in, giving it the flexibility to signal high/low process deviations or a separate fault condition without an external relay module. The front panel measures 4.8 cm x 4.8 cm, matching the standard 1/16 DIN cutout. Overall depth is 5.8 cm, which keeps the body clear of deeper terminal blocks in a crowded enclosure.
If you are backfilling an existing install, the revision code 2 confirms the current hardware iteration.
Control output and alarm configuration
Control output 1 is an SSR drive signal (C code), so the controller fires a solid-state relay directly — no interposing relay needed for most heater or small-load applications. Control output 2 is omitted (Y code), which keeps the terminal count down and frees the second output slot for the alarm card instead. The two alarm points (F code) can be assigned independently to process variable deviation, absolute setpoint limits, or rate-of-change. In a temperature-control loop, one alarm typically guards against over-temperature while the other flags a heater-break or sensor-fault condition.