20.F5.C1H-340F KEB
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The KEB 20.F5.C1H-340F is an axis drive from the F5 Combivert Axis Drives series with a maximum motor power of 50 HP at 230V. It features a Hiperface encoder interface and includes a braking transistor among its installed accessories. The auxiliary signal output is of TTL type.
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Product Description:
The 20.F5.C1H-340F is a closed-loop axis inverter supplied by KEB as part of the F5 Combivert Axis Drives series. The device converts fixed-frequency mains power into a variable-frequency, variable-voltage output for synchronous and induction motors used in precision material-handling, packaging, and machining cells. By coordinating its power stage with encoder feedback and auxiliary signaling, it maintains torque accuracy during rapid load changes while supporting integration with centralized automation controllers. This closed-loop operation allows the inverter to adjust motor output in response to measured position and speed data.
It is assigned 20 as its inverter size code, placing it in the middle of the product family’s power range. The housing form factor is denoted by code H, so the chassis depth accommodates control panels with side-by-side airflow. The code also indicates a heat sink orientation that supports vertical cooling paths through the cabinet. At the motor terminals, the drive can deliver up to 50 HP, a rating suitable for many conveyor or pump axes on low-voltage three-phase networks. Position feedback arrives through the Hiperface interface, while auxiliary signal outputs are provided as TTL-level pulses for external counters or control devices. Because these pulses use 5-volt logic, they can connect directly to compatible PLC high-speed inputs without additional level shifting.
Dynamic deceleration energy is controlled by an internal braking transistor, allowing the DC bus voltage to remain within operating limits during overhauling loads without a separate brake chopper module. This integrated component switches braking current when regenerated energy raises the DC bus voltage during rapid motor deceleration. When the drive is installed in Unit B cabinets supplied from 230 V, operation does not require derating. Mechanical clearances, mounting slots, and cable entry points follow a consistent layout that supports orderly installation in multi-axis control cabinets. Connection markings use established terminal conventions, reducing wiring errors when power, motor, feedback, and auxiliary signal conductors are connected. The arrangement also keeps the encoder interface separate from the motor power terminals, helping preserve signal integrity in electrically noisy machinery.
