12.F5.M1D-3AHA KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 12.F5.M1D-3AHA is part of the F5 Combivert Axis Drives series and supports a closed loop field-oriented control for three-phase asynchronous motors. It has a maximum motor power of 5 HP, uses a 3-phase 400 V AC/DC input supply, and features an encoder interface of resolver plus incremental input. The drive includes a built-in braking transistor and offers a short-time current capability of 180% with a switching frequency of 8 kHz.
Internal Product Review
The 12.F5.M1D-3AHA is a KEB Combivert F5 axis drive for 3-phase asynchronous motors with closed-loop field-oriented control. A 3-phase 400 V AC/DC input and an integrated braking transistor support stable, efficient drive operation in motion applications. An 8 kHz switching frequency makes this unit a very capable 5 HP solution.
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Product Description:
The 12.F5.M1D-3AHA is an axis drive module manufactured by KEB for the F5 Combivert Axis Drives series. It conditions three-phase line power and delivers controlled voltage and frequency to induction motors, allowing automation controllers to command speed and torque through feedback. By acting as the intermediary between the PLC and a three-phase asynchronous motor, the unit stabilizes motor response in conveyor, packaging, and general material-handling systems where precise velocity regulation is required. Its power conversion and control functions are integrated into a cabinet-mounted format for use in automated machinery.
The drive connects directly to a three-phase 400 V AC/DC supply, eliminating the need for external step-down hardware. Its vector algorithm uses closed-loop field-oriented control to resolve stator currents into torque-producing and magnetizing components, maintaining efficiency across the load range. The rated output reaches 5 HP, making the drive suitable for midsize auxiliary axes, while the IGBTs switch at 8 kHz to limit current ripple and audible noise. For rapid acceleration, the current ceiling can rise to 180% of nominal current. Hardware protection intervenes at 216% of nominal current to guard the power stage against sustained overloads. This momentary current capacity supports startup surges and fast deceleration events without requiring the drive to operate continuously above its nominal current.
The drive has a standard varnished finish, and its inverter size code 12 corresponds to cabinet layouts that use a housing type D footprint. An internal braking transistor channels regenerated energy into an external resistor bank to prevent DC-link overvoltage during high-inertia stops. Position feedback is supported through a resolver and incremental input interface, allowing either resolver-based rotor tracking or incremental pulse counting for closed-loop speed control. The interface supports feedback from a three-phase asynchronous motor and gives the controller the information needed to regulate motor speed under changing loads. The varnished finish helps protect internal electronics from airborne contaminants commonly present in industrial cabinets, while the housing format supports orderly installation alongside related drive components.
