Product Description:

The KDF2.2-100-300-W1 is a variable frequency drive designed by Bosch Rexroth Indramat as part of the KDF Variable Frequency Drives series. The unit modulates the frequency and amplitude of its three-phase output to govern AC motor speed, making it suitable for packaging lines, material-handling axes, and general factory automation where coordinated velocity profiles are required. By integrating control, power conversion, and diagnostic functions in one housing, the drive removes the need for separate external controllers and simplifies panel layout.

Its regulation algorithm is based on a digital velocity loop, which samples feedback and adjusts output pulses to minimize speed error with millisecond response times. The power stage is rated for a continuous output of 100 A, allowing the drive to sustain demanding acceleration cycles without derating. When connected to a common DC bus, the inverter operates from a nominal link voltage of 300 VDC; this matches the distribution level found in many Indramat multi-axis cabinets. With this voltage and current capacity, the unit can deliver up to 25 HP to the motor shaft. Speed references are accepted through a analog velocity command channel, supporting ±10 V signals generated by PLCs or motion cards.

Application flexibility is increased through the built-in four-speed operation feature, which allows predefined step frequencies to be selected via discrete inputs for rapid recipe changes. For supervisory control, the drive supports remote speed modulation, enabling dynamic set-point updates over field wiring without adjusting potentiometers. Protective functions include a configurable torque limit adjustment that clamps output during mechanical jams to prevent shaft or gearbox damage. In positioning tasks, integral position control lets the inverter handle incremental moves directly, reducing the load on the central controller and maintaining accurate stops even when line voltage fluctuates.