RD51.2-5B-007-L-A2-FW Bosch Rexroth Indramat
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MPN: R911201312
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The Bosch Rexroth Indramat RD51.2-5B-007-L-A2-FW is a drive controller from the RD 500 Drive Controllers series. It features a rated power output of 7.5 kW and utilizes a forced air cooling system. The controller has a built-in brake chopper and operates on a 3-phase AC supply with a voltage range of 500 V.
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Product Description:
The Bosch Rexroth Indramat RD51.2-5B-007-L-A2-FW belongs to the RD 500 Drive Controllers series and is intended for variable-speed regulation of three-phase induction motors in automated machinery. By modulating the applied frequency and voltage, the unit coordinates motion sequences, conveyor speeds, and process setpoints while integrating with higher-level PLC architectures through the series' standardized interfaces. Within plant layouts, it sits between the mains supply and the motor, converting fixed-frequency input power into the variable output needed for efficient equipment control.
Its continuous output capacity is rated at 7.5 kW, indicating the nominal motor power supported under normal operating conditions. The input section is designed for a supply centered on 500 V, which suits industrial three-phase systems in this voltage class. Because the supply stage is a three-phase AC converter, the device rectifies and inverts the incoming mains without requiring an external transformer. Motor excitation is regulated by U/f curve control, which adjusts voltage in proportion to frequency to maintain flux over the speed range. Thermal management relies on forced-air cooling, allowing close cabinet installation while helping internal components remain within their temperature limits.
A built-in brake chopper dissipates regenerated energy during rapid deceleration, helping protect the DC bus from overvoltage. The controller can be held in a low-energy state through the external standby power function, and inadvertent restarts are prevented by the dedicated starting lockout circuit. Hardware belongs to design generation 2, which supports compatibility with current RD 500 option modules. The unit combines power conversion, braking control, and restart prevention in a single module.
Frequently Asked Questions about RD51.2-5B-007-L-A2-FW:
Q: Does the RD51.2-5B-007-L-A2-FW have an integrated brake chopper?
A: The RD51.2-5B-007-L-A2-FW features a built-in brake chopper for energy dissipation during braking cycles.
Q: What is the rated power output of the RD51.2-5B-007-L-A2-FW?
A: This drive controller delivers a rated power output of 7.5 kW for applications requiring mid-level drive strength.
Q: How is the RD51.2-5B-007-L-A2-FW drive cooled during operation?
A: The RD51.2-5B-007-L-A2-FW uses forced air cooling to maintain optimal operating temperatures.
Q: What supply voltage is required for the RD51.2-5B-007-L-A2-FW drive controller?
A: This model is designed to operate on a 3-phase AC converter with a voltage range of 500 V.
Q: What control method does the RD51.2-5B-007-L-A2-FW use for motor operation?
A: The RD51.2-5B-007-L-A2-FW employs U/f curve control for managing motor speed and torque.
