Product Description:

The KDV 2.2-100-200/300-220 is a supply module manufactured by Bosch Rexroth Indramat within the KDV Supply Modules series. It serves as the central power interface in multi-axis drive systems, rectifying mains power, maintaining the shared DC link, and dissipating regeneration energy returned by connected servo inverters during braking or overhauling loads. By stabilizing the DC bus and housing internal bleeder resistors, the unit simplifies cabinet wiring and supports coordinated energy management across several drives in industrial automation lines. This arrangement allows multiple axes to share a common power source while keeping the electrical layout compact and organized inside the control cabinet.

This module accepts a nominal input of 220 V AC and converts it to a regulated bus of 300 V DC. Its rated power is 30 kW, allowing it to supply continuous power to the connected drive group. A continuous DC output of 100 A supports normal motion profiles, while short-term peaks up to 300 A for 300 ms handle rapid acceleration commands without excessive bus droop. Auxiliary circuits draw 500 VA, and the dedicated fan section consumes 1000 VA to remove internal heat from the module. Cabinet heat loss is 150 W, and the integrated ±15 V rail supplies 2 A for sensor interfaces or analog electronics. With a unit weight of 17 kg, the module can be mounted on standard backplanes and fits centralized drive cabinets used for coordinated motion control.

The logic supply rail delivers 12 A at 24 V for control cards, which reduces the need for a separate low-voltage supply in the same cabinet. During regenerative braking events, internal resistors absorb 2 kW continuously and tolerate up to 40 kW in short bursts, allowing the system to handle substantial returned energy from decelerating axes. External heat loss of 2000 W must be removed by the cabinet ventilation system so the surrounding components remain within their intended operating range. The housing is classified as IP10, indicating protection against accidental finger contact while still permitting the free airflow needed for cooling. This open cooling approach suits enclosed electrical cabinets where forced ventilation manages both the module and the heat produced by nearby drive components.