Product Description:

The HMV01.1E-W0075 is a Bosch Rexroth Indramat supply module from the HMV IndraDrive Supply Units series. It provides a shared DC bus for multiple drives, allowing regenerated energy to be redistributed across the axis group instead of being dissipated in individual braking resistors. Internally, the unit is classified as an HMV supply unit and is delivered as design version 1 within series version 01, using a fed power-supply configuration that ties the line converter to the DC link.

The module delivers a rated output of 75 kW while drawing a continuous input current of 125 A from the mains. Its DC link operates safely up to an upper limit of 900 V, stabilized by a bus capacitance of 3760 µF. With these values, the supply can furnish 45 kW to the DC bus without a line choke and 75 kW when a choke is installed, while momentary demands can rise to a peak DC bus power of 112 kW. Input requirements scale in the same way, from 68 kW without a choke to 86 kW with one. The power factor improves to 0.97 when the line reactor is used, reducing reactive current drawn from the grid. For initial charging of large external capacitors, the device limits inrush to a maximum of 5.5 A, and the additional bus capacity that may be connected must not exceed 10 mF.

Thermal management is handled by internal air cooling with an integrated blower, keeping semiconductors within range while the brake circuit processes up to 90 kW of instantaneous energy and absorbs 250 kWs per duty cycle. Continuous brake dissipation is capped at 2 kW, so external resistors must be sized if average braking exceeds that figure. The control section is powered from a dedicated 24 V rail, and this 24 V DC input draws 30 W during normal operation. This arrangement keeps logic functions active even when the main bus is de-energized.