Rexroth DKC11.3-040-7-FW (R911279433) Servo Drive Controller

 

 

Product Overview

The Bosch Rexroth DKC11.3-040-7-FW (R911279433) is an ECODRIVE series servo drive controller used for high-performance single-axis and multi-axis servo motor control.

It is designed for MKD servo motors and Indramat motion systems, widely used in CNC, packaging, and automation machinery.

Key Specifications

• Brand: Bosch Rexroth (Indramat)
• Model: DKC11.3-040-7-FW
• Material No.: R911279433
• Series: ECODRIVE DKC (Version 3 / Series 11)
• Type: AC Servo Drive Controller

Electrical Data

• Input voltage: 3-phase 380–480 VAC
• DC bus voltage: 700 V DC nominal
• Rated current: 40 A
• Motor compatibility: Indramat MKD servo motors
• Protection class: IP20
• Operating temperature: approx. 0–40°C range (industrial cabinet use)

Function & System Role

This drive is responsible for:

• Servo motor speed and torque control
• Position control (via encoder feedback system)
• Motion synchronization in multi-axis systems
• Communication with PLC / CNC controller
• Real-time current and velocity regulation

It typically works in a closed-loop system with:

• Indramat MKD servo motors
• Rexroth control systems / PLC
• Encoder feedback (incremental or absolute depending configuration)

Advantages & Features

• High precision servo motion control performance
• Stable 700V DC bus architecture for fast dynamic response
• Supports multi-axis machine systems
• Compact ECODRIVE modular design
• Reliable industrial-grade long-life operation
• Wide use in OEM machine platforms worldwide

Applications

• CNC machine tools
• Industrial robotics
• Packaging machinery
• Printing and converting machines
• Assembly automation systems
• Textile and material processing equipment

Precautions

• Must match Indramat MKD motor compatibility
• Requires correct parameter file (firmware configuration critical)
• Incorrect tuning may cause vibration or motor instability
• High voltage risk (700V DC bus inside system)
• Use only in proper industrial cabinet environment
• Commissioning must be done using Rexroth IndraDrive / ECODRIVE tools