R911256154 (RAC 2.3-250-460-A0S-W1)

Name: R911256154 (RAC 2.3-250-460-A0S-W1)
Brand: Indramat Drives
SKU: RAC 2.3-250-460-A0S-W1
Price: 854.00 USD

RAC Spindle Drive Controllers

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The Bosch Rexroth MPN R911256154 (RAC 2.3-250-460-A0S-W1) is a main spindle AC drive controller engineered for precise spindle positioning in numerically controlled machinery. It features an internal control loop, supporting resolution up to 1/4,000,000 revolutions, and high-resolution feedback for accurate low-speed operation. The device connects directly to three-phase mains at 400 V, 50 Hz ±15%, or 460 V, 60 Hz. It accommodates a rated current of 250 A and provides an analogue speed command interface (+/-10 V) as well as an RS 232-C serial interface. Integrated functions include an emergency stop for safe operation and a DC brake for spindle containment during power loss. Cooling is achieved via an internal blower. Electrical connections should align with the supplied manual instructions.

Technical Specifications

Internal Control Loop
Yes

Maximum Resolution
1/4 000 000 revolutions

High-resolution Feedback Feature
Yes

Controlled by
Motor feedback or 1:1 gears or a direct drive

Emergency Stop Switch
Yes

Energy Regeneration
Yes

Stopping Method
Direct current braking

Power Connections
Independent

CNC Connections
Independent

Delivery Note
Included in shipping container

Product Identification
Barcode stickers on packaging

Global Shipping
Yes

Frequently Asked Questions

What type of additional interface is available on the RAC 2.3-250-460-A0S-W1 spindle drive controller?

The RAC 2.3-250-460-A0S-W1 spindle drive controller uses an RS 232-C serial interface for additional connectivity.

How is the RAC 2.3-250-460-A0S-W1 spindle drive controller cooled during operation?

This model is equipped with an internal blower and built-in fan for cooling purposes, ensuring stable operation.

What is the rated connection voltage for the RAC 2.3-250-460-A0S-W1 spindle drive controller?

The rated connection voltage for this controller is 3 x AC 400 V at 50 Hz with a tolerance of ±15%, or 3 x AC 460 V.

What is the rated current output of the RAC 2.3-250-460-A0S-W1 spindle drive controller?

The RAC 2.3-250-460-A0S-W1 is capable of delivering a rated current of 250 A to the main spindle motor.

Which version is the RAC 2.3-250-460-A0S-W1 spindle drive controller from Bosch Rexroth Indramat?

Version 3 is the design version of the RAC 2.3-250-460-A0S-W1 spindle drive controller model line-up.

Common Misspellings

RAC 23250460A0SW1

RAC 2 3 250 460 A0S W1

Rac 2.3-250-460-a0s-w1

Internal Product Review

The RAC 2.3-250-460-A0S-W1 is an AC main spindle drive controller from Bosch Rexroth Indramat, designed for high-current applications with a rated current of 250 A. It features an internal blower for efficient cooling and a serial RS 232-C interface for reliable communication. This controller stands out for its robust power handling and integration flexibility.