Product Description:

The KDF1.1-100-300-W1-115 is an AC drive produced by Bosch Rexroth Indramat within the KDF Variable Frequency Drives series. As a closed-loop motor controller, the drive converts a fixed mains input into a variable output frequency and voltage so that induction or synchronous motors can be matched to process speed and torque demands in automated machinery. It is routinely installed in conveyors, winding lines, and machining cells where precise velocity control and adjustable acceleration profiles are required. Closed-loop regulation helps the motor hold a commanded speed when line conditions or load demand change during operation.

The power section of the drive is designed around a DC bus rated at 300 VDC, and its output stage can deliver up to 100 A of continuous current to the connected motor. Thermal management relies on a blower-cooled housing that forces air across heat-sink fins to keep semiconductor junction temperatures below their limits. When paired with machines requiring higher mechanical power, the unit supports motors up to 25 HP while maintaining speed accuracy through a digital velocity loop executed inside the controller. Command data are accepted in parallel form, allowing quick selection of predefined speed references or motion sequences from external control logic.

Auxiliary control circuits use a fan supply of 115 VAC, which means the cooling blower can be powered directly from standard North American utility lines. For applications that require discrete speed steps, the drive offers four-speed operation; each preset can be selected through the 16-bit parallel interface without recalculating parameter tables. In positioning tasks, the integrated position control mode combines encoder feedback with the analog velocity command channel, permitting incremental moves and dwell functions to be handled internally. Because the reference channel is analog, the system can receive a continuously variable speed signal from a PLC or process controller. This arrangement supports retrofits where existing control hardware already supplies analog commands and simple discrete selections.