R911256101 (RAC 3.5-150-460-A0S-W1-220)

Name: R911256101 (RAC 3.5-150-460-A0S-W1-220)
Brand: Indramat Drives
SKU: RAC 3.5-150-460-A0S-W1-220
Price: 981.00 USD

RAC Spindle Drive Controllers

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The Bosch Rexroth R911256101 (RAC 3.5-150-460-A0S-W1-220) is an AC main spindle drive controller from the RAC series, designed for numerically controlled machine tools. It operates at a rated current of 150 A with a rated connection voltage of 3 x AC 400 V, 50 Hz, ±15% or 3 x AC 460 V, and a control electronics connection of AC 230 V, 50-60 Hz. The controller features an internal position control loop for independent spindle positioning, an analogue speed command input of ±10 V, and offers up to 1/4,000,000th revolution resolution. It is equipped with a built-in cooling fan, a serial RS 232-C interface for parameter management, and conforms to DIN VDE 0160 standards. Rated output shaft power ranges from 10 to 30 kW. Operation is specified for temperatures up to 45°C (safe up to 55°C) and altitudes up to 1000 m. The IP 10 protection level provides basic ingress protection. No additional bleeder or encoder input is present. Version 5, series 3, interface terminal X4 (9 poles) is implemented.

Technical Specifications

Product Type
Main Spindle Drive Controller

Current Type
150A

Voltage
3 x AC 380 and 460V

Ideal Operating Temperature
45 degrees Celsius

Maximum Operating Temperature
55 degrees Celsius

Maximum Operating Altitude
1000 meters

Revolution Resolution
1/4 000 000th

Speed
+/- 10 Volts

Operating Frequency
50/60Hz

Emergency Circuit Provisions
Yes

Additional Interface
Yes

Power at Motor Output Shaft
10 to 30KW

Protection Class
IP 10

Safety Standards
DIN VDE 0160

In-built Cooling Fan
Yes

Special Plug and Socket
Yes

Heat Emission
Yes

Frequently Asked Questions

What form of speed command input does the RAC 3.5-150-460-A0S-W1-220 spindle drive controller support?

This model uses an analogue speed command input of +/- 10 V for controlling spindle speed settings precisely.

How is the RAC 3.5-150-460-A0S-W1-220 spindle drive controller cooled during operation?

The RAC 3.5-150-460-A0S-W1-220 is equipped with an internal blower and built-in fan for cooling purposes.

Which type of serial interface does the RAC 3.5-150-460-A0S-W1-220 spindle drive controller offer?

The serial interface provided is an RS 232-C, allowing for serial communication with compatible devices.

What is the rated connection voltage specification of the RAC 3.5-150-460-A0S-W1-220 spindle drive controller?

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

What is the rated current capacity of the RAC 3.5-150-460-A0S-W1-220 spindle drive controller?

The RAC 3.5-150-460-A0S-W1-220 is designed for a rated current of 150 A, suitable for high-demand spindle applications.

Common Misspellings

RAC 35150460A0SW1220

RAC 3 5 150 460 A0S W1 220

Rac 3.5-150-460-a0s-w1-220

Internal Product Review

The RAC 3.5-150-460-A0S-W1-220 is a robust AC main spindle drive controller from Bosch Rexroth Indramat, designed for high-performance applications with a rated current of 150 A and a built-in internal blower for efficient cooling. Its compatibility with 3 x AC 400 V or 3 x AC 460 V input and a serial RS 232-C interface enables reliable integration into demanding industrial systems. This spindle controller stands out for its powerful output and straightforward analog speed command.