Product Description:

The 07.F4.F1D-4A03 is an AC frequency inverter manufactured by KEB within the F4 Combivert Frequency Inverters series. It is intended to regulate induction or synchronous motors in automated machinery by modulating voltage and frequency according to field-oriented control algorithms. This lets the drive manage speed and torque with tighter control than simple starter arrangements. It also combines motor control and braking functions in one housing, which helps reduce panel wiring and the need for separate external components.

This model accepts a three-phase supply and delivers continuous output power of 750 W with a rated apparent power of 1.8 kVA. An internal brake transistor dissipates regenerated energy, so an external chopper is not required. Six programmable digital inputs, one fixed digital input, and two transistor outputs provide flexible machine signaling, and each transistor sink can switch up to 20 mA. Analog interfacing is available for speed or torque reference functions, and a dedicated reference rail of +10 V is available for potentiometer connection. Feedback is processed through field-oriented routines that accept incremental encoders, while a second encoder channel can be monitored separately. This arrangement supports stable motor response during changing load conditions and low-speed operation.

The auxiliary I/O further includes one relay with contacts rated at 30 VDC / 1 A for isolated status signaling. Encoder channel two can accept pulse streams up to 300 kHz, allowing high-resolution position feedback without missed edges. The reference rail maintains a tolerance of ±3%, and the associated reference output current is limited to 4 mA to protect external circuitry. Two analog outputs support process feedback, and the available logic and relay signals allow direct connection to PLCs, safety circuits, and operator panels. The combination of encoder handling, control I/O, and analog signaling suits compact integration in automated equipment.