RD52.1-4N-001-L-V1-P1-L1-FW Bosch Rexroth Indramat
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MPN: R911288924
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The Bosch Rexroth Indramat RD52.1-4N-001-L-V1-P1-L1-FW is a drive controller from the RD 500 Drive Controllers series. It features field oriented vector control and an integrated mains filter. The controller operates on a voltage range of 380 to 480 V through a 3-phase AC converter and uses forced air cooling.
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Product Description:
The RD52.1-4N-001-L-V1-P1-L1-FW is a drive controller produced by Bosch Rexroth Indramat in the RD 500 Drive Controllers series. As a standalone converter module, it supervises three-phase induction or synchronous motors in automated machinery, translating command references from the host PLC into regulated torque and speed. The device forms the central power stage of the axis, modulating motor voltage and current while monitoring line conditions and internal thermal limits to maintain repeatable motion in continuous-duty production lines. This arrangement lets the controller respond quickly to load changes during starts, stops, and speed corrections without adding a separate power conversion stage.
The controller is powered from a 380 to 480 V utility bus that is accepted through its three-phase rectifier, and line variations are accommodated within a ±10 % window so the unit remains within safe component stresses during brownouts or brief overvoltage events. Because the supply path uses a 3 x AC converter topology, the module rectifies and inverts the mains waveform to generate a regulated DC link for the IGBTs that produce the motor output waveforms. To attenuate conducted emissions, an integrated mains filter is fitted upstream of the power electronics, eliminating the need for a separate line filter cabinet. Rotor flux and torque are computed with field-oriented vector control, enabling precise dynamic response across the full speed range. That control method also supports smooth acceleration and stable operation when the mechanical load changes abruptly.
Thermal management relies on forced air cooling, with a dedicated fan channeling airflow through the heat sink to keep semiconductor junctions below their rated temperature. The drive is specified without a built-in brake chopper, so braking energy must be handled by an external resistor if regenerative duty is expected. For control standby, a dedicated 24 V standby power input sustains logic functions when the mains is isolated. Implementation follows design generation 1, matching the first-generation hardware platform used for this product line. Air passages around the cooling path should remain unobstructed so heat can be removed consistently during long operating periods.
Frequently Asked Questions about RD52.1-4N-001-L-V1-P1-L1-FW:
Q: What cooling method does the RD52.1-4N-001-L-V1-P1-L1-FW use?
A: The RD52.1-4N-001-L-V1-P1-L1-FW drive controller is cooled using a forced air cooling system.
Q: What control type is utilized in the RD52.1-4N-001-L-V1-P1-L1-FW?
A: This model features field oriented vector control for precise motor performance.
Q: Does the RD52.1-4N-001-L-V1-P1-L1-FW include a mains filter?
A: The integrated mains filter in this drive controller helps reduce electrical noise from the supply line.
Q: What is the operating voltage range for the RD52.1-4N-001-L-V1-P1-L1-FW?
A: The RD52.1-4N-001-L-V1-P1-L1-FW operates within a voltage range of 380 to 480 V AC.
Q: Is there a built-in brake chopper in the RD52.1-4N-001-L-V1-P1-L1-FW?
A: This drive controller does not have a built-in brake chopper.
