Product Description:

The RZR01.2-RD51-0570-S-M-FW belongs to the RZR Frequency Converters series from Bosch Rexroth Indramat and serves as the command unit in variable-speed motor installations. Within an automation cell, it converts low-voltage DC power into a modulated AC output so a matched drive can regulate induction-motor speed in conveyors, pumps, and processing machines. It is used where compact construction and panel mounting are important, and it supports controlled motor operation in systems that need steady speed changes during normal production. It can be applied in induction-motor systems where consistent output and straightforward speed control are more important than highly complex motion functions.

The controller draws a nominal input of 24 V +/- 5%, which allows it to operate from a common control supply in mixed-voltage cabinets. At maximum load, the internal supply stage can draw up to 12 A, so the control power source must be sized for that demand. The housing has an IP20 rating that protects against accidental contact with live parts while still allowing airflow through the unit. Ambient operation is limited to 0 to 40 °C, which suits typical indoor industrial spaces. The internal power electronics use a single-circuit layout, so the converter components share one common DC link and the wiring remains straightforward.

The unit is intended for climate class 3K3 (DIN IEC 721-3-3), which covers moderate humidity and non-conductive dust commonly found in production areas. Speed regulation uses U/f characteristic control, keeping output voltage proportional to frequency so induction-motor flux remains stable during acceleration and steady running. As a motor inverter, it handles the dynamic section of drive control while a higher-level PLC or controller sends setpoints. The converter has a mass of 6.5 kg, which should be considered when planning DIN-rail or backplate mounting.