RD51.1-5N-022-L-DF-FW Bosch Rexroth Indramat
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MPN: R911201491
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The Bosch Rexroth Indramat RD51.1-5N-022-L-DF-FW is a drive controller from the RD 500 Drive Controllers series. It has a rated power of 22 kW and operates with a voltage range of 500 V as a 3-phase AC converter. This model uses U/f curve control and forced air cooling, and features a NAMUR terminal strip with external 24 V stand-by power.
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Product Description:
The RD51.1-5N-022-L-DF-FW is a modular inverter from Bosch Rexroth Indramat in the RD 500 Drive Controllers series. As an adjustable-frequency converter, it regulates three-phase induction motors in automated machinery such as material-handling lines, mixers, and process pumps. By reshaping fixed mains energy into a variable output, the controller matches motor torque to load demand, reduces inrush current during starts, and supports efficient operation during continuous duty. Its compact frame is intended for cabinet mounting close to the drive train, where short motor leads can help keep installation layouts orderly.
It uses U/f curve control, which maintains the relationship between stator voltage and frequency as motor speed changes. The drive is rated for 22 kW, making it suitable for medium-capacity conveyors, compressors, and similar equipment. Supply input is handled through a three-phase AC converter input stage within a line voltage range centered on 500 V. Cooling relies on forced air cooling, and the internal fan channel removes heat from the power section so the electronics remain within their thermal limits during sustained full-load operation.
For applications that require rapid deceleration, the module is supplied without a built-in brake chopper, so an external resistor interface is needed when regenerated energy must be dissipated. The unit is Design Generation 1, which aligns it with early RD 500 option cards. Field wiring is supported by a NAMUR terminal strip with external 24 V stand-by power, which keeps control logic active during mains isolation and allows control functions to remain available when the main input is removed. Diagnostic monitoring is supported by current filter feedback at U6, V6, and W6, which returns measured phase-current values to the control board for live observation during operation.
Frequently Asked Questions about RD51.1-5N-022-L-DF-FW:
Q: What is the rated power output of the RD51.1-5N-022-L-DF-FW drive controller?
A: The RD51.1-5N-022-L-DF-FW offers a rated power output of 22 kW.
Q: What is the supply voltage range for the RD51.1-5N-022-L-DF-FW?
A: This drive controller operates with a supply voltage of 500 V.
Q: What type of control does the RD51.1-5N-022-L-DF-FW utilize?
A: The RD51.1-5N-022-L-DF-FW uses U/f curve control for motor operation.
Q: Does the RD51.1-5N-022-L-DF-FW drive controller come with a built-in brake chopper?
A: The RD51.1-5N-022-L-DF-FW does not include a built-in brake chopper.
Q: What cooling method does the RD51.1-5N-022-L-DF-FW use?
A: Forced air cooling is employed in the RD51.1-5N-022-L-DF-FW for thermal management.
