21.F5.A1R-76-A KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 21.F5.A1R-76-A is a drive from the F5 Combivert Axis Drives series. It comes with a standard control board and a braking transistor accessory installed. The drive supports a maximum motor power of 60 horsepower at 230V and uses housing form factor code R.
Internal Product Review
The 21.F5.A1R-76-A is a KEB F5 Combivert axis drive with a standard control board and 60 HP motor power capability. An installed braking transistor improves stopping performance, while the R housing form factor supports clean cabinet integration. A strong choice for high-output axis applications.
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Product Description:
The 21.F5.A1R-76-A is an AC inverter module manufactured by KEB for the F5 Combivert Axis Drives series. It converts fixed-frequency plant power into variable-frequency, three-phase output for coordinated motor speed and torque control. The drive can operate induction or synchronous motors used in conveyors, machine tools, and material-forming equipment. It also interfaces with PLC motion sequences, allowing the connected controller to coordinate acceleration, operating speed, and deceleration with other machine axes.
The control slot contains a Standard Board with the baseline input and output functions needed for common axis-control tasks. Its aluminum enclosure uses the R housing form factor, which establishes the mounting footprint and airflow path for installation inside an electrical panel. A built-in braking transistor provides a direct connection for an external braking resistor that absorbs regenerated energy during rapid motor deceleration. This arrangement helps prevent excessive DC-bus voltage when a driven load returns energy to the inverter. The inverter has size code 21, which indicates the physical frame and associated current capacity. It supports a maximum motor power of 60 HP when operated from a 230 V supply, allowing the frame to control motors used on high-power industrial axes. The applicable current rating, conductor size, protective devices, and panel ventilation must be selected according to the connected load and operating duty.
Within the Combivert F5 architecture, consistent parameter maps support uniform setup across compatible axis drives. Analog reference inputs can provide proportional speed commands, while digital inputs handle functions such as starting, stopping, and operating-state selection. Parameter access is available through the keypad or supported fieldbus adapters, enabling local adjustment or communication with a higher-level controller. Compatible option boards extend the available control connections when the baseline interface does not provide every signal required by the machine. Cooling accessories can be selected to maintain suitable airflow when the inverter operates under sustained load inside an enclosed panel.
