R911252351 (RAC 4.1-300-460-L00-W1)

Name: R911252351 (RAC 4.1-300-460-L00-W1)
Brand: Indramat Drives
SKU: RAC 4.1-300-460-L00-W1
Price: 374.00 USD

RAC Spindle Drive Controllers

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The R911252351 (RAC 4.1-300-460-L00-W1) is a digital AC main spindle drive controller designed for 1MB asynchronous frameless spindle motors, providing continuous shaft output from 52 to 93 kW. It supports spindle operation as a servo-axis within a position control loop, using a SERCOS interface for speed, position, and torque set-points. Operating at a rated connection voltage of 3 x AC 400 V, 50 Hz, ±15% or 3 x AC 460 V, the controller delivers a rated current of 300 A, with an internal blower for cooling. No external bleeder or additional encoder input is required. The maximum servo-axis resolution is 1/4,000,000. Maximum allowable excess pressure and proper cooling airflow must be regulated, and an ambient temperature of 45°C should be maintained within the control cabinet.

Technical Specifications

Motor Control
1MB asynchronous frameless spindle motors

Continuous Motor Output
52 to 93kW

Speed Variation
Varying

Connection
Direct mains

Emergency Shutdown
Integrated

Communications Interface
SERCOS

Encoder Input
No

Synchronization Input
No

Additional Interface
No

Heat Dissipation
Depends on workload

Servo-Axis Maximum Resolution
1/4000000

Recommended Ambient Temperature
45ºC

Moisture Precaution
Avoid condensation

Operating Temperature
up to 45ºC

Maximum Humidity Class
Class F (DIN 40 040)

Cooling Advice
Prevent moisture from cooling device

Global Availability
Yes

Frequently Asked Questions

How is the RAC 4.1-300-460-L00-W1 spindle drive controller cooled during operation?

This drive controller features an internal blower and built-in fan for cooling purposes, ensuring stable operation.

What is the rated current capability of the RAC 4.1-300-460-L00-W1 drive controller?

The RAC 4.1-300-460-L00-W1 operates with a rated current of 300 A, allowing support for high power spindle motors.

What input voltage does the RAC 4.1-300-460-L00-W1 require for proper operation?

The RAC 4.1-300-460-L00-W1 supports both 3 x AC 400 V, 50 Hz (±15%) and 3 x AC 460 V connection voltages.

How are speed commands transmitted to the RAC 4.1-300-460-L00-W1 drive controller?

Speed commands are transmitted via the SERCOS interface, which facilitates precise digital control of the spindle.

Which interface terminal type is featured on the RAC 4.1-300-460-L00-W1 controller?

The interface terminal available is X4, compatible with optical waveguides for high-speed signal transmission.

Common Misspellings

RAC 41300460L00W1

RAC 4 1 300 460 L00 W1

Rac 4.1-300-460-l00-w1

Internal Product Review

The RAC 4.1-300-460-L00-W1 is an AC main spindle drive controller from the RAC Spindle Drive Controllers series, offering robust operation with a rated connection voltage of 3 x AC 400 V or 460 V. Featuring a built-in fan for efficient internal cooling and a high rated current of 300 A, this model is well-suited for demanding spindle applications. The optical waveguide interface and SERCOS speed command provide reliable communication and control, making it a strong choice for precision machining environments.