23.F5.G1R-940A KEB
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The KEB 23.F5.G1R-940A is a drive from the F5 Combivert Axis Drives series with open loop flux vector control and optional closed loop capability. It supports a general maximum motor power of 100 HP, operates at a supply voltage of 3-phase 400 V AC, and is housed in an IP20 enclosure. The device features 8 digital inputs, 29 control terminals, and includes a braking transistor as an installed accessory.
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Product Description:
The 23.F5.G1R-940A is an inverter unit produced by KEB as part of the F5 Combivert Axis Drives series. It functions as a variable-speed controller for induction and synchronous motors used in conveying, pumping, and positioning tasks. The inverter converts fixed mains power into a regulated output that matches the required torque and speed profile during industrial automation. Open-loop flux-vector control supports motor operation without an encoder, while the incremental encoder interface allows closed-loop control when direct feedback is required.
The drive operates from a three-phase 400 V AC supply, and its 230 V Unit B rating supports motors up to 100 HP. To meet acceleration demands, it tolerates peak current surges of 150% of IN for short periods. An overcurrent trip activates at 180% of IN to protect the power stage from excessive current. The IGBT bridge operates at a switching frequency of 2 kHz, balancing thermal loading with output-current ripple. Two analog inputs and two analog outputs handle continuous process signals. Eight digital inputs and four programmable outputs, consisting of two relay outputs and two transistor outputs, provide connections for machine controls. Eight parameter sets can be stored to accommodate different operating profiles without manually reentering each group of values.
The size 23 housing uses form factor R and has an enclosure rated IP20, which protects against accidental contact with internal components. The unit measures 520 mm in height, 340 mm in width, and 355 mm in depth. Wiring is routed through 29 control terminals, allowing simultaneous connection of input and output signals, encoder leads, and safety circuits. A terminal scan time of 2 ms allows the control logic to respond quickly to changing field signals. The integrated braking transistor manages regenerated energy during rapid motor deceleration by connecting a suitable braking resistor to the DC bus. Its available analog and digital interfaces support integration with sensors, switches, relays, and supervisory control equipment in medium-to-large automation systems.
