R911283124 (DKR02.1-W200N-BE26-01-FW)

Name: R911283124 (DKR02.1-W200N-BE26-01-FW)
Brand: Indramat Drives
SKU: DKR02.1-W200N-BE26-01-FW
Price: 275.00 USD
Availability: InStock

DKR Drive Controllers

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The R911283124 (DKR02.1-W200N-BE26-01-FW) is a Bosch Rexroth DKR02.1 series drive controller intended for use in precision motion control applications. It operates on a three-phase AC supply of 400–480 V with a control voltage of 230 V AC and accommodates system frequencies of 50/60 Hz. The drive controller supports 4 kHz and 8 kHz drive modules and is capable of delivering continuous output power of 47 kW (4 kHz) or 37 kW (8 kHz), with a maximum output of 55 kW at a peak current of 141 A. Feedback is provided via digital servo and resolver interfaces through the X4 port. The integrated cooling uses a blower unit, and the unit does not include a bleeder resistor or brake chopper, featuring a rigid DC bus. Communication is through a SERCOS interface located in the U1 slot. The housing meets IP20 protection standards and the device operates within a temperature range of +5 to +45 °C. The design corresponds to version 1 in the DKR product series line 02, with a rated current of 200 A.

Technical Specifications

Product Type
Drive Controller

Power Source
AC 3 × 400 – 480 V

Control Voltage
AC 230 V +/-10%

System Frequency
50/60 Hz

Drive Module
4 kHz/8 kHz

Power Consumption
120/95 A

Continuous Power Delivery
47/37 kW

Motor Feedback Connection
X4 Port

Motor Feedback Type
Digital Servo and Resolver Feedback

Anti-Bleeder Resistor
Not Available

Cooling Method
Built-In Blower Unit

Maximum Power Delivered
55 kW

Maximum Current
141 A

Communication Interface
SERCOS

Firmware Module Slot
U5

Protection Class
IP 20

Operating Temperature Range
+5 to +45 degree Celsius

Frequently Asked Questions

What type of cooling system does the DKR02.1-W200N-BE26-01-FW use, and why does it matter?

It uses a built-in blower that removes heat directly from the drive. This eliminates the need for external cooling fans, reducing installation complexity and downtime risks in dusty environments.

Why is resolver feedback valuable in motion control systems?

Resolvers provide absolute position data with high reliability under harsh conditions. This ensures accurate position and speed regulation even when exposed to electrical noise or vibration.

Can the DKR02.1-W200N-BE26-01-FW operate effectively in multi-axis networks?

Yes, the integrated SERCOS interface provides deterministic communication across axes. This allows synchronized motion control with minimal latency for coordinated automation systems.

What is the practical impact of rigid DC bus operation in this controller?

A rigid DC bus enables stable power sharing across multiple drives. It simplifies cabinet wiring and improves energy distribution in large automated cells.

What installation considerations are critical for drives using blower-based air cooling?

Adequate clearance must be maintained for airflow intake and exhaust. Restricted airflow can cause overheating, leading to derating or unexpected shutdowns.

Common Misspellings

DKR021W200NBE2601FW

DKR02 1 W200N BE26 01 FW

dkr02.1-w200n-be26-01-fw

DKR2.1-W200N-BE26-01-FW

Internal Product Review

The DKR02.1-W200N-BE26-01-FW is an advanced servo drive controller in Bosch Rexroth Indramat’s DKR series. It features a no-bleeder rigid DC bus architecture, built-in blower cooling, and a SERCOS interface with digital servo/resolver feedback. It finds use in CNC machines, packaging systems, and material-handling automation lines.