Product Description:

The 12.F5.C1D-YA10 is an AC inverter drive manufactured by KEB as part of the F5 Combivert Axis Drives series. It serves as the power-stage and control interface between a fixed 400 V AC/DC supply and a three-phase motor in automated equipment. By generating a variable voltage and frequency output, the unit enables closed-loop speed and torque regulation for conveyors, pumps, and light machining spindles that must synchronize with adjacent axes on a production line.

The drive’s control terminal block contains 29 positions, including 8 digital inputs that accept 24 V logic for run commands, preset speeds, or fault resets. Two differential channels provide 2 analog inputs that can accept ±10 V or 0–20 mA reference signals for speed or torque demand. Process values such as actual frequency are returned through 2 analog outputs, simplifying connection to indicators or PLC analog modules. One open-collector status output and a 30 VDC/1 A relay add further signaling options. The inverter can synthesize carrier-based output frequencies up to 800 Hz, making it suitable for high-speed machinery. Installation inside a protected cabinet is required because the unit carries an IP20 enclosure rating.

During brisk acceleration, the power stage can supply 180% of rated current for a limited duration, and an independent shutdown threshold is fixed at 216% to safeguard the semiconductors. The size-12 inverter frame is matched to motors up to 5 HP, giving adequate headroom for small conveyor or spindle loads while still fitting standard control panels. Pulse-width modulation is generated at 8 kHz, which balances audible noise with switching losses. A factory-installed GTR7 braking transistor connects to an external resistor bank so regenerated energy is dissipated during fast stops. Standard airflow cooling and a 24 V internal supply support the logic circuits, and the empty encoder slot allows added feedback hardware when closed-loop vector control is required.