Product Description:

The RZR01.2-RD51-0610-P-M-FW frequency converter is produced by Bosch Rexroth Indramat within the RZR Frequency Converters series. As a motor inverter, the unit converts controlled DC from its drive system into variable-frequency AC for induction or synchronous motors used in industrial automation. It belongs to the Frequency Converter Controller product group, is part of line 01, and uses design version 2. This arrangement makes it suitable for cabinet-mounted systems that need adjustable motor speed from a dedicated inverter stage.

The converter accepts an input of 24 V ± 5%, which allows low-voltage control electronics to energize its gate circuitry before the main bus is applied. It can deliver 610 A of output current, which supports high torque during acceleration and heavy-load operation. Speed regulation is implemented with U/f characteristic control, so the drive keeps output voltage proportional to frequency across the speed range. The IP20 housing helps prevent finger contact with live parts and relies on cabinet airflow for cooling. Continuous service is allowed from 0 – 40 °C, which supports stable operation in typical production areas.

To handle large pulse currents, the internal power stage uses parallel circuitry, which spreads conduction losses across multiple device paths. Even when the process is idle, auxiliary electronics draw only 12 A, which is useful when sizing control transformers and standby power supplies. The unit meets 3K3 (DIN IEC 721-3-3), so it is suitable for moderate humidity and non-conductive dust when operated within the stated temperature range. Despite its high current capability, the converter weighs only 6.5 kg, which reduces the load on the mounting panel. This control profile is well suited to applications that need straightforward open-loop motor speed control rather than more complex closed-loop motion functions.