Product Description:

The RZR01.1-RD52-0880-S-M-FW is a frequency converter controller produced by Bosch Rexroth Indramat as part of the RZR Frequency Converters series. In industrial automation, it operates as a motor inverter that conditions low-voltage supply power and delivers regulated output to an attached drive motor. By performing this conversion, it enables closed-loop speed and torque control without mechanical shifting components, which is useful in conveyors, grinders, and similar machine modules. The unit is a frequency converter controller in design 1, line 01.

The electrical data supports cabinet-level integration. The converter accepts a control-supply input of 24 V ±5%, so peripheral electronics can stabilize the logic rail within a modest tolerance before enabling the power sections. Motor flux is managed through field-oriented vector control, a method that decouples torque and magnetizing currents to improve transient response when the axis is accelerated or braked. The power section is rated for a continuous armature current of 880 A, allowing the device to drive large-frame motors without external parallel inverters. Internally, it uses a single power topology, which simplifies busbar routing and reduces common-mode noise. Protection against accidental contact is provided by its IP20 enclosure, so the drive must be mounted inside a closed cabinet.

Operating limits are also provided for temperature, vibration, control power demand, and handling weight. During operation, the surrounding air must remain between 0–40 °C, and vibration conditions match class 3K3 (DIN IEC 721-3-3), which corresponds to light indoor industrial areas without condensation or conductive dust. Under those conditions, the auxiliary supply for the control electronics draws up to 12 A, which should be considered when sizing cabinet power distribution. Despite its high motor current capability, the converter has a service mass of only 6.5 kg, which helps reduce handling load during installation.