Product Description:

Bosch Rexroth Indramat manufactures the RD52.1-7N-160-R-V1-FW/S102 drive controller as part of the RD 500 Drive Controllers series. The unit functions as a high-power inverter stage in automated production cells, converting energy from a common DC bus into controlled three-phase output for induction or synchronous motors. Through integrated processing hardware, it supports closed-loop speed and torque tasks on conveyors, extruders, and other material-handling equipment where precise response is required under changing mechanical loads. This operating role makes the controller suitable for systems that need accurate motor behavior during both steady running and dynamic load changes.

Its power section is rated for 160 kW, enabling continuous operation in installations that exceed the limits of standard cabinet drives. The device accepts a DC link from 530 to 670 V, so it connects directly to rectifiers or shared energy rails within that range. Thermal management relies on liquid cooling with an internal pump to remove heat efficiently without enlarging the enclosure. Motor regulation is implemented through field-oriented vector control, which separates stator current into flux and torque components for smooth response across the speed range. This control method helps the drive maintain predictable motor performance during acceleration, deceleration, and load variation.

The controller is delivered without a built-in brake chopper, so applications that require rapid deceleration must use an external resistor bank. Power is supplied from an inverter DC supply, which avoids a direct mains connection at the controller itself. The product is design generation 1, which corresponds to the connector arrangement and option compatibility used for this version of the series. Internal electronics can be maintained through a dedicated 24 V standby power input that preserves stored settings during bus outages. The controller also uses separately ordered firmware so the installed feature set can match the intended drive task.