RAC 2.2-200-380-APD-Z1 Bosch Rexroth Indramat
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MPN: R911250258
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The Bosch Rexroth Indramat RAC 2.2-200-380-APD-Z1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series. It features a rated connection voltage of 3 x AC 400 V at 50-60Hz and a rated current of 200 Amps. The unit includes a high-resolution INDRAMAT encoder and additional encoder input for spindle feedback, with internal blower cooling and a 16 bit parallel digital position set-point interface.
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Product Description:
The RAC 2.2-200-380-APD-Z1 spindle drive controller is built by Bosch Rexroth Indramat and belongs to the RAC Spindle Drive Controllers series. It is an AC main spindle drive controller used to regulate torque and speed in high-performance spindle motors for numerically controlled machining lines. By converting incoming three-phase mains power into controlled motor output, it provides the closed-loop response needed for precision cutting, drilling, and grinding operations. The controller is intended for machine tools that need stable spindle behavior during acceleration, steady cutting, and rapid speed changes between machining steps.
This unit is designed for supply networks rated at 3 x AC 400 V, 50-60 Hz, so it can be connected directly to compatible industrial mains. A continuous phase current of 200 A is available to the spindle, which supports high-demand motor operation and affects conductor sizing. Speed reference is provided as a ±10 V analog signal, allowing straightforward connection to PLC or CNC outputs that use proportional voltage commands. For positioning cycles, the controller also accepts a 16-bit parallel digital position setpoint, which supports high-resolution indexing without serial communication. Heat generated by the switching section is removed by an internal blower, so separate cabinet airflow is not required.
An additional bleeder resistor dissipates regenerated energy during rapid deceleration, which helps prevent DC-bus overvoltage during braking events. Feedback flexibility is improved by the additional spindle feedback encoder input, which allows the controller to read a secondary position source when dual-loop accuracy is needed. The primary feedback channel uses a high-resolution INDRAMAT encoder to provide fine incremental data for surface-finish-critical processes. External control wiring lands on the X4 9-pole connector, which allows the control interface to be separated from the power cabling. This unit is version 2 in the series and is arranged for precise spindle control with added braking and feedback capability.
Frequently Asked Questions about RAC 2.2-200-380-APD-Z1:
Q: What cooling method does the RAC 2.2-200-380-APD-Z1 drive controller use?
A: The RAC 2.2-200-380-APD-Z1 features an internal blower with a built-in fan for cooling.
Q: Does the RAC 2.2-200-380-APD-Z1 have an additional bleeder for energy handling?
A: This drive controller is equipped with an additional bleeder to manage energy dissipation.
Q: What type of additional interface is available on the RAC 2.2-200-380-APD-Z1?
A: It supports digital position set-points with a 16-bit parallel interface.
Q: What type of encoder is supported by the RAC 2.2-200-380-APD-Z1 drive?
A: The RAC 2.2-200-380-APD-Z1 uses a high-resolution INDRAMAT encoder for feedback.
Q: What is the rated current output of the RAC 2.2-200-380-APD-Z1 controller?
A: The rated current for this spindle drive controller is 200 A.
