RAC 2.2-200-460-APD-W1 Bosch Rexroth Indramat
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MPN: R911237064
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The Bosch Rexroth Indramat RAC 2.2-200-460-APD-W1 is an AC Main Spindle Drive Controller from the RAC Spindle Drive Controllers series. It features an internal blower for cooling, supports rated connection voltages of 3 x AC 400 V at 50 Hz or 3 x AC 460 V, and is capable of handling a rated current of 200 Amps. This unit has a high-resolution INDRAMAT encoder for spindle feedback and includes a digital position set-point interface.
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Product Description:
The RAC 2.2-200-460-APD-W1 is an AC main spindle drive controller produced by Bosch Rexroth Indramat within the RAC Spindle Drive Controllers series. It regulates high-power spindle motors in milling, turning, and grinding centers where commanded speed and position must follow CNC setpoints with minimal delay. Installed in a cabinet, the controller converts three-phase supply power into controlled motor output and provides closed-loop velocity regulation so that the mechanical spindle maintains commanded rates during load fluctuations.
Power handling starts with the supply connection, which accepts 3 × AC 400 V, 50 Hz, ±15% or 3 × AC 460 V at the input bus. From this source, the unit can deliver up to 200 A of continuous output current, a level that supports large-frame synchronous or induction spindles. Internal thermal management is handled by an internal blower, eliminating the need for external ducting while maintaining component temperatures within rated limits. The numerical control transmits coarse motion commands through a 16-bit parallel digital position setpoint interface, while fine velocity adjustment is performed through an analog ±10 V speed command. Field wiring for these control signals terminates on the front-panel X4 nine-pole connector for quick access.
For position feedback, the controller provides an additional encoder input for spindle feedback, allowing it to process data from a second measuring system when high stiffness or dual-loop control is required. The main feedback channel is reserved for a high-resolution INDRAMAT encoder, permitting micro-increment velocity regulation during threading or contour finishing. Energy returned from rapid deceleration is routed to the shared DC bus, and the unit operates without an additional bleeder, so excess regeneration must be managed by upstream drives or a common brake resistor.
Frequently Asked Questions about RAC 2.2-200-460-APD-W1:
Q: What is the rated current for the RAC 2.2-200-460-APD-W1 drive controller?
A: The RAC 2.2-200-460-APD-W1 offers a rated current of 200 A, which suits demanding spindle operations in industrial settings.
Q: What input voltage does the RAC 2.2-200-460-APD-W1 accept?
A: This controller is designed for use with three-phase AC inputs of either 400 V at 50 Hz (+/-15%) or 460 V.
Q: How is the RAC 2.2-200-460-APD-W1 spindle drive controller cooled?
A: Cooling is provided by a built-in internal blower, ensuring stable operation during continuous use.
Q: Which encoder type is compatible with the RAC 2.2-200-460-APD-W1?
A: A high-resolution INDRAMAT encoder is supported for precise spindle feedback and control.
Q: What type of position set-point interface does the RAC 2.2-200-460-APD-W1 offer?
A: The RAC 2.2-200-460-APD-W1 includes a digital position set-point interface with 16-bit parallel data capability.
