Product Description:

The RZR01.2-RD52-0880-S-M-FW is a frequency converter controller produced by Bosch Rexroth Indramat within the RZR Frequency Converters series. It is intended for integration between a DC 24 V supply and an induction or synchronous machine, serving as the motor inverter that links drive electronics with plant-level motion commands. Within automated processes, its role is to translate control signals into the precise voltage and frequency required for stable torque and speed regulation across a wide operating range.

This controller accepts an input of 24 V ± 5%, so auxiliary power rails must stay within that window to maintain logic stability. During full load, it can deliver up to 880 A on the motor side, a value that affects conductor sizing and short-circuit protection selection. Torque response is managed with field-oriented vector control, which continuously resolves stator currents into torque-producing and flux-producing components for accurate dynamic behavior. An IP20 housing allows installation inside switchgear cabinets where touch-safe but ventilated equipment is acceptable. The permitted ambient operating range is 0–40 °C; outside that span, the unit must be derated or externally cooled to avoid overtemperature trips.

On the control electronics side, the maximum current consumption is 12 A, so upstream fusing and wiring can be sized accordingly. Total mass is 6.5 kg, which supports panel mounting without special lifting equipment. The unit is rated 3K3, which suits clean, dry production areas with moderate temperature fluctuations. The power sections use a single circuitry layout, which helps keep busbar placement straightforward and reduces stray inductance. Design code 2 and line designation 01 identify the controller version and option slot arrangement, and the unit is intended for motor inverter duty in drives that require smooth acceleration, controlled deceleration, and continuous speed adjustment.