12.F5.B1D-3A0A KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 12.F5.B1D-3A0A belongs to the F5 Combivert Axis Drives series and supports a 3-phase 400 VAC input supply. This drive provides a rated output current of 9.5 Amps and a rated output power of 6.6 kVA, with a maximum motor power of 5 HP. It is equipped with an installed braking transistor and supports a maximum DC input voltage of 746 VDC.
Internal Product Review
The 12.F5.B1D-3A0A is a KEB F5 Combivert axis drive rated for 5 HP on a 3-phase 400 VAC supply. An integrated braking transistor and 10 A maximum braking current support controlled deceleration in demanding motion applications. A rated output current of 9.5 A with 8 kHz rated switching frequency gives the unit smooth, dependable drive performance.
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Product Description:
The 12.F5.B1D-3A0A is an AC axis drive from the F5 Combivert Axis Drives series manufactured by KEB. Within an automation cell, this inverter links the plant's 400-volt line supply to a servo or induction motor, modulating frequency and voltage so the attached actuator can follow speed or torque references from the motion controller. The drive's integrated braking transistor lets excess regenerative energy be routed to an external resistor, preventing DC-bus overvoltage during rapid deceleration.
The inverter is sized for up to 5 HP motors and accepts a three-phase 400 VAC supply. Under nominal conditions, it draws 13 A and delivers a steady 9.5 A to the motor, which corresponds to 6.6 kVA of output power. Carrier pulses are normally issued at 8 kHz; this switching frequency balances acoustic noise and semiconductor losses. Inverter size code 12 indicates the physical frame and cooling clearance required in the cabinet. The rated input range spans 305 to 528 VAC, and DC bus operation is also possible between 420 and 746 VDC, allowing the unit to be fed from a rectified supply or a common DC link. A minimum braking resistor of 82 Ω must be wired to handle the energy removed by the built-in transistor.
The permissible DC-bus ceiling is 746 VDC, and the drive will inhibit pulses if input voltage drops below 305 VAC. For dynamic events, switching can be increased to 16 kHz, though the added thermal load must be checked. Protection thresholds include a 17 A short-time output rating and a 10 A braking current limit, while a 20 A main fuse protects the upstream feeder. If motor phase current reaches the overcurrent trip level of 21 A, the device shuts down to prevent semiconductor damage. The maximum input voltage and the overcurrent trip response help protect the power stage during line disturbances.
