Product Description:

The TVD 1.2-15 is a power supply module produced by Bosch Rexroth Indramat within the TVD Power Supply Modules series. In a multi-axis automation cabinet, it converts three-phase mains into a stabilized DC link, supplies low-voltage control power, and uses an internal bleeder to dissipate regenerated energy from connected drives. This arrangement supports coordinated motion by providing the electrical functions needed for servo inverters and related control electronics.

The DC link is maintained at 320 V, giving each connected drive a consistent bus voltage for torque production. Under continuous duty, the module can furnish up to 15 kW of DC bus power, while the same link can support additional mechanical demand from the connected system. Control electronics use a separate auxiliary supply, and the unit’s input burden is limited to 300 VA, which helps keep transformer demand moderate. For peripheral sensors and logic, the 24 V L rail provides 7.5 A of current, while complementary positive and negative rails are available for analog circuitry. When the converter is operating, internal losses amount to 330 W, which should be considered when cabinet ventilation is planned. Continuous bleeder capability prevents smaller overruns from raising the DC bus voltage during operation.

During rapid deceleration, the bleeder can accept bursts up to 40 kW, and its thermal reservoir can absorb as much as 60 kWs before the duty cycle must be reduced. The module is Series 1 and design version 2, which identifies its product generation without changing the mounting format. Overall height is 390 mm, width is 150 mm, and depth is 325 mm, so the unit fits within a single control-cabinet slot. The enclosure has an IP10 protection class, so it must be installed inside a cabinet away from direct liquid contact, while the open front structure supports natural airflow across the heat sink surfaces.