R911244442 (RAC 2.2-250-460-A0I-Z1)

RAC Spindle Drive Controllers

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The Bosch Rexroth R911244442 (RAC 2.2-250-460-A0I-Z1) is a spindle servo drive within the RAC 2 drive controller series, designed for precise spindle motor control, including c-axis applications. It operates with a rated connection voltage of either 3 x AC 400 V at 50 Hz or 3 x AC 460 V, supporting a rated current of 250 A and a current type of 400 A. Key features include an internal feedback position control loop, analogue speed command (+/-10 V), direct current braking, an additional bleeder, incremental encoder output, and an emergency stop switch. The unit is cooled via an internal blower and is suitable for ambient temperatures from 5 to 45 °C. Interface connectivity is provided by a 9-pole X4 terminal.

Technical Specifications

Control Feature
Internal feedback position control loops

Voltage
3x400 Volts AC (50 Hz), 3x460 Volts AC (60 Hz)

Current Rating
400 Amps

Added Facility
Direct current braking

Connection Facility
Standardized, ready-made cables

Terminal Assignment
Identical

Additional Component
Bleeder

Method of Cooling
Built-in fan unit

Temperature Range
5 to 45 degrees Celsius

Drive Configuration
AS programming module

Water Protection
Not provided

User Control Panel
Yes, with display screen and keypad

Additional Interface
Incremental encoder output

Safety Features
Emergency stop switch, main contactor.

Frequently Asked Questions

Common Misspellings

Internal Product Review

The RAC 2.2-250-460-A0I-Z1 combines incremental encoder output with enhanced thermal stability through its bleeder. It ensures smooth spindle motion and reliable long-term operation.

1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Warranty

Indramat USA 1 Year Warranty

Repair

We offer a repair service for the RAC 2.2-250-460-A0I-Z1.

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.