R911276797 (DKR02.1-W300N-BE16-02-FW)

Name: R911276797 (DKR02.1-W300N-BE16-02-FW)
Brand: Indramat Drives
SKU: DKR02.1-W300N-BE16-02-FW
Price: 379.00 USD
Availability: InStock

DKR Drive Controllers

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The Bosch Rexroth MPN R911276797 (DKR02.1-W300N-BE16-02-FW) is a drive controller within the DIAX 04 digital intelligent drive system series, designed for direct operation on three-phase 400–480 VAC mains. The controller supports AC main spindle motors, frameless spindle motors, and linear motors, and integrates a built-in blower for air cooling. It is equipped with a SERCOS command interface, digital servo and resolver feedback, and utilizes the ESM02.3 firmware module for parameter management. The unit is constructed with no bleeder or brake chopper and a rigid DC bus, achieving a nominal current rating of approximately 300 A. It provides IP20 protection, installation up to 1000 m above sea level, and functions efficiently between +5 and +45 °C. Approximate weight is 104 kg.

Technical Specifications

Product
Bosch Rexroth Drive Controller

Functional Reliability
High

Drive System
Digital Intelligent Drive System (DIAX 04)

Power Connection
3-phase 400 – 480 VAC voltage

Protection
IP20 ingress protection

Cooling Method
Blower Unit Installed

Current Requirement
141/110 A with 4/8 kHz drive

Continuous Power
55/43 kW

Communication Interface
SERCOS

Firmware
ESM02.3, needs to be ordered separately

Net Weight
Approximately 104 kg

Ambient Temperature Range
+5 to +45 degree Celsius

Installation Height
Maximum 1000 m/sea level

Frequently Asked Questions

Why is IP20 protection suitable for the DKR02.1-W300N-BE16-02-FW in switch cabinets?

IP20 rating protects against accidental contact with live parts while ensuring cabinet-based airflow. It’s ideal for controlled environments like industrial automation panels.

Why is SERCOS communication used in the DKR02.1-W300N-BE16-02-FW controller?

SERCOS provides deterministic real-time data transfer, ensuring precise synchronization between drives. This enables highly accurate motion control in multi-axis systems.

How does the optional ESM02.3 module benefit the DKR02.1-W300N-BE16-02-FW controller?

The ESM02.3 module stores firmware and parameters, making replacements faster. It also simplifies maintenance by allowing plug-and-play firmware recovery.

Why does the DKR02.1-W300N-BE16-02-FW require clearance above and below during installation?

Clearance ensures optimal airflow for the built-in blower cooling system. Without it, overheating risks could shorten the controller’s lifespan.

How does resolver feedback in the DKR02.1-W300N-BE16-02-FW enhance accuracy compared to other methods?

Resolver feedback provides absolute position data with high reliability under harsh conditions. This improves accuracy in applications requiring constant precision.

Common Misspellings

DKR021W300NBE1602FW

DKR02 1 W300N BE16 02 FW

dkr02.1-w300n-be16-02-fw

DKR2.1-W300N-BE16-02-FW

Internal Product Review

The drive controller DKR02.1-W300N-BE16-02-FW features a 300 A current capacity. Bosch Rexroth Indramat engineers it with the inclusion of an air-cooled blower, SERCOS command interface, and resolver or digital servo motor feedback for accuracy. It is commonly used in AC main spindle, frameless spindle, and linear motor systems.