RD51.1-7N-015-L-V1-FW Bosch Rexroth Indramat
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MPN: R911200937
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The Bosch Rexroth Indramat RD51.1-7N-015-L-V1-FW is a drive controller from the RD 500 Drive Controllers series with a rated power of 15.0 kW. It features U/f curve control, supports a voltage range of 530 to 670 V, and uses forced air cooling. The controller operates with an inverter DC supply and does not include a built-in brake chopper.
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Product Description:
The RD51.1-7N-015-L-V1-FW belongs to the RD 500 Drive Controllers series manufactured by Bosch Rexroth Indramat. As a three-phase inverter, it modulates DC bus energy to drive standard induction motors used in conveyors, pumps, and general motion axes. Within an automation cabinet, this controller coordinates motor speed by converting the supplied DC link voltage into a variable-frequency, variable-amplitude output that matches process demands. This operating method lets the drive adapt motor behavior to changing load conditions without requiring a fixed-speed supply. That makes it suitable for applications that need smooth ramping, controlled starts, and repeatable speed adjustment across changing process conditions.
The unit is rated for 15.0 kW of mechanical output, so wiring and protective devices must be selected for that continuous load. Its input accepts a DC link between 530 to 670 V, allowing pairing with rectifier modules that operate on typical 400 VAC mains. Motor torque is regulated through U/f curve control, which maintains a fixed volts-per-hertz ratio so magnetic flux remains stable during speed changes. This control method is commonly used where dependable speed regulation is needed without encoder-based feedback. Heat generated by switching devices is removed with forced air cooling, which requires an unobstructed airflow path through the heat sink fins. Because it is supplied without a built-in brake chopper, rapid deceleration or overhauling loads may require an external braking module to handle returned energy.
The DC link is supplied by an inverter DC supply section, so the drive relies on an upstream rectifier for line isolation and front-end protection. The controller is in Design Generation 1, which identifies its product revision within the series. An auxiliary circuit provides 24 V standby power from an external source, allowing the control electronics to remain active while the main bus is de-energized. Keeping the low-voltage control section energized also allows stored settings and network responses to remain available when the power stage is inactive. This arrangement supports orderly shutdown behavior and preserves access to status information when the motor output is not active.
Frequently Asked Questions about RD51.1-7N-015-L-V1-FW:
Q: What is the rated power of the RD51.1-7N-015-L-V1-FW drive controller?
A: The RD51.1-7N-015-L-V1-FW operates with a rated power output of 15.0 kW.
Q: What voltage range does the RD51.1-7N-015-L-V1-FW support?
A: This drive controller supports a voltage range of 530 to 670 V.
Q: How is the RD51.1-7N-015-L-V1-FW cooled?
A: The RD51.1-7N-015-L-V1-FW features forced air cooling for thermal management.
Q: What type of control does the RD51.1-7N-015-L-V1-FW use?
A: This model operates with U/f curve control for regulating motor speed.
Q: Does the RD51.1-7N-015-L-V1-FW have a built-in brake chopper?
A: The RD51.1-7N-015-L-V1-FW does not include a built-in brake chopper.
