Product Description:

The 16.F5.A1E-34EA is a KEB axis drive from the F5 Combivert Axis Drives series. Designed as a variable-frequency inverter, it regulates three-phase induction or synchronous motors within automated machinery. By converting the plant’s 400 V supply into a precisely modulated output, the unit enables closed-loop speed, torque, and positioning tasks that would otherwise require mechanical gear changes. The installed braking transistor supports controlled deceleration, so production lines can stop accurately without overvoltage on the DC link.

The drive accepts a three-phase 400 V AC/DC input and has a rated input current of 43 A. Internally, the Standard Board executes all control loops and supplies a modulated output that delivers 33 A of continuous line current, equivalent to 23 kVA of apparent power at full load. Output frequency ranges from 6 Hz for full-torque low-speed operation up to 599 Hz, giving wide speed authority for high-pole or high-speed motors. Gate firing on the IGBTs is set to a switching frequency of 2 kHz, which minimizes audible noise while keeping thermal losses within the 330 W limit. Size code 16 hardware and housing form E retain these figures in a compact cabinet footprint.

For transient events, the inverter can exceed its continuous limits, and the controller allows an overcurrent headroom of 180%. The power stage can source up to 49.5 A for short durations before protective timers engage, and a separate short-time current limit of 150% is also monitored. An OC trip is declared at 59 A, while heat generated in such events is removed through the aluminum heat sink, which must remain below 90 °C to protect the semiconductors. Installation guidelines permit up to 100 m of shielded motor cable without derating, letting the 20 HP outputs reach remote axes. A 50 A gG main fuse works with the integrated brake chopper to protect the F5 controller.