Product Description:

The KDV 2.3-100-220-300-000 is a supply module manufactured by Bosch Rexroth Indramat for the KDV Supply Modules series. It rectifies a three-phase AC source and establishes a common DC bus, forming the central power backbone for drive controllers in automated equipment. Integrated energy handling elements allow the module to accept regenerated power and maintain a stable bus voltage, so axes connected to the same link operate without voltage fluctuations.

The electrical interface begins with a nominal line of 3 x 220 VAC; the module draws up to 100 A under rated conditions. After rectification and smoothing, it delivers a bus stabilized at 300 VDC. With the standard 4 mF capacitor stack, the supply can furnish a continuous bus power of 30 kW, while transient demand can rise to a peak of 90 kW without exceeding design limits. These ratings allow multiple servo inverters to accelerate simultaneously while keeping the bus voltage within allowable tolerance. Internal monitoring ensures that the current drawn from the mains remains inside nameplate limits to avoid overloading upstream protection devices.

Thermal and energy-return features complete the module’s profile. A dedicated bleeder resistor dissipates up to 2 kW continuously, converting surplus kinetic energy into heat whenever regenerative braking pushes the bus above threshold. The energy storage components can absorb up to 100 kWs before the bleeder must engage, giving the drive system time to decelerate heavy loads. An auxiliary 24 V rail supplies control electronics with a continuous output of 11.5 A. Typical cabinet dissipation is listed as 150 W during input rectification and 500 W on the DC side, values that determine airflow requirements. Despite these capabilities, the assembly weighs only 17 kg, permitting straightforward mounting on standard backplanes.