Product Description:

The RZR01.1-RD52-0880-P-M-FW is a frequency converter controller produced by Bosch Rexroth Indramat for the RZR Frequency Converters series. In an automation cell, it functions as the motor inverter, translating DC bus energy into variable-frequency, variable-amplitude three-phase power so that connected motors can follow programmed speed and torque profiles. The product belongs to design level 1 and line 01 of the platform, which places it within the established RZR controller range.

Control precision is supported by a logic supply of 24 V ±5%, which powers the gating electronics and diagnostic circuits independently of the drive’s high-energy path. The unit can deliver a peak output of 880 A, a current level that accommodates large induction spindles or high-torque servo motors without external amplification. Internal busbars use a parallel arrangement so the phase conductors share thermal loading and maintain symmetrical switching losses. Speed regulation uses field-oriented vector control; this method separates stator currents into torque-producing and magnetizing components for accurate torque command at low shaft speeds. For use in switchgear rooms, the unit is suited to 3K3 conditions, with operation allowed in non-condensing air that may be dusty or mildly humid.

During continuous operation, the control section draws only 12 A, which simplifies the sizing of auxiliary power supplies and fuses. The housing has an IP20 protection class, so it must be installed in a closed cabinet while still allowing access to terminal strips and fiber-optic links. Overall shipping mass is 6.5 kg, allowing mounting on DIN rails or backplates without excessive handling burden. Thermal limits permit use between 0 – 40 °C; within this range, the forced-air channels keep semiconductor junction temperatures under control during repetitive duty cycles in conveyors, presses, and automated storage systems.