RD51.1-5N-022-L-V1-FW Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: R911200977
Ask for AvailabilityThe Bosch Rexroth Indramat RD51.1-5N-022-L-V1-FW belongs to the RD 500 Drive Controllers series and is designed as a converter for 3-phase AC supply at 500 V. This drive controller features U/f curve control, forced air cooling, and a rated power of 22 kW. It includes external 24 V stand-by power and does not have a built-in brake chopper.
Internal Product Review
The RD51.1-5N-022-L-V1-FW is a drive controller engineered for dependable U/f curve control. A 22 kW rating and 500 V operation support stable performance in demanding converter applications. Forced air cooling and external 24 V stand-by power add practical serviceability, making this unit a strong RD 500 platform for industrial applications.
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Product Description:
The RD51.1-5N-022-L-V1-FW is a drive controller manufactured by Bosch Rexroth Indramat for the RD 500 Drive Controllers series. It operates as the power stage between a plant’s three-phase mains supply and an asynchronous motor, adjusting output frequency and voltage so equipment such as conveyors, fans, and centrifugal pumps can run at the speed required by the process. By combining control electronics and power semiconductors in one chassis, the unit helps simplify panel layout and supports quick motor response to PLC commands. This type of controller is suited to variable-speed duties where smooth ramping and steady motor control are required instead of fixed-speed operation.
Rated output is 22 kW, and the power section is intended for a supply centered on 500 V. Motor flux is regulated through U/f curve control, which matches voltage to frequency so magnetizing current remains stable across the usable speed range. The supply interface uses a three-phase AC converter topology to rectify and invert the mains before power is delivered to the motor. Internal heat is removed by forced-air cooling directed across the power components, so the enclosure needs airflow that supports continuous operation. The power stage is suitable for standard 50 Hz and 60 Hz industrial distribution systems when the incoming voltage matches the required range.
For auxiliary circuits, the unit uses 24 V standby power from an external supply so the control electronics and fieldbus can remain active when the mains is isolated. Dynamic braking hardware is not built in, because the controller is supplied without a built-in brake chopper; rapid deceleration requires an external chopper or resistor. The unit is Generation 1 in the RD 500 platform, and application-specific parameter sets are stored in flash memory. Stored parameter sets remain available after power cycling, so the controller retains the selected application data. Keeping the low-voltage circuits energized also allows communication and status functions to remain available during a mains shutdown.
