18.F5.A1G-34HA KEB
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The KEB 18.F5.A1G-34HA belongs to the F5 Combivert Axis Drives series and offers a general maximum motor power of 30 HP. It features 8 digital inputs, 2 analog inputs with 12-bit resolution, and an analog output filter at 178 Hz. This drive has a resolver and incremental encoder interface, supports a supply input of 3-phase 400V AC/DC, and is equipped with a standard control board and braking transistor.
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Product Description:
The 18.F5.A1G-34HA is an axis drive manufactured by KEB and offered in the F5 Combivert Axis Drives series. Acting as a variable-frequency inverter, it regulates three-phase power so that plant controllers can adjust motor speed and torque without mechanical throttling. In typical automation cells, the unit sits between the PLC and a 400–480 V induction or servo motor, providing the closed-loop electrical power needed for material-handling stations, indexing tables, and coordinated multi-axis assemblies.
The drive accepts a three-phase 400 V AC/DC supply and can support motors up to 30 HP. Its IGBT bridge switches at a carrier frequency of 2 kHz, balancing switching loss against harmonic distortion. Two analog reference channels operate with 12-bit resolution, while eight digital inputs are buffered by a 2.1 kΩ stage and scanned every 1 ms for a quick response to field sensors. The standard control board includes a resolver and incremental encoder port for position feedback. The inverter has size code 18 and housing form factor G, while varnished cooling passages protect the power stack. A GTR7 braking chopper with an installed braking transistor diverts regenerated energy into a resistor bank. An analog monitor output provides 10-bit feedback for process variables.
Short bursts of load are handled through a current boost of 150%. An overcurrent trip engages at 180% of the continuous rating to protect the semiconductors from excessive current. Analog monitor data is filtered at 178 Hz and modulated at 3.4 kHz, giving downstream controllers a smooth signal for supervision. For auxiliary signaling, the transistor block can source up to 50 mA DC total, allowing direct connection of drive-ready lamps or relays. Resolver feedback supplies motor position data during closed-loop operation, and the braking chopper manages energy returned to the DC bus during deceleration. The varnished cooling passages provide additional protection for the power electronics during operation in industrial control cabinets.
