Product Description:

The KDF2.2-100-300-W1-220 is a variable frequency drive produced by Bosch Rexroth Indramat for the KDF Variable Frequency Drives series. Installed between the plant's three-phase supply and the motor, it modulates the output waveform so that automated lines can execute speed ramps, torque limits, and position moves without mechanical gear changes or separate speed control hardware. This unit supports positioning capability through an internal velocity control loop and is intended for applications that must handle regenerative braking as well as bidirectional motor operation during reversing and deceleration cycles.

The drive handles loads up to 30 kW, which is the maximum mechanical power it can deliver to the connected motor. A continuous current capacity of 100 A keeps copper losses within thermal limits during steady operation. Its DC link is maintained at 300 V DC, which supports the inverter output needed for the motor speed range. Because the inverter is configured for four-quadrant operation, it can source or sink energy during acceleration and braking. Command processing is handled by a digital velocity loop, allowing precise speed regulation through drive parameters rather than analog trimming.

Dynamic events are absorbed by a bleeder resistor that dissipates 2 kW continuously and up to 40 kW during short braking peaks, protecting the DC bus when regenerated energy exceeds line capacity. The inverter can supply transient currents as high as 300 A to overcome inertial starts or sudden load changes. Motor position feedback arrives via an incremental encoder, and the control electronics can store up to 100 kWs of returned energy before the bleeder engages. Thermal management relies on a blower-cooled heat sink fed by a 220 V AC fan circuit, while the IP10 housing is intended for installation inside a filtered cabinet. A three-phase power transformer supplies the intermediate circuit and supports stable power conversion inside the drive.