Siemens 3RW4900-0KC00 PROFIBUS Communication Module for SIRIUS 3RW44 Soft Starters

Siemens 3RW4900-0KC00 PROFIBUS Communication Module Overview

The Siemens 3RW4900-0KC00 is a high-performance PROFIBUS DP communication module engineered specifically for SIRIUS 3RW44 soft starter series. This industrial-grade interface module enables seamless integration of motor control systems into PROFIBUS fieldbus networks, delivering real-time diagnostics, parameter configuration, and operational monitoring capabilities for demanding automation environments.

Technical Specifications

• Protocol: PROFIBUS DP V1 compliant
• Compatibility: SIRIUS 3RW44 soft starter family (35A to 710A)
• Baud Rate: 9.6 kbit/s to 12 Mbit/s auto-detection
• Connection: 9-pin D-sub connector with integrated terminating resistor
• Diagnostic Functions: Extended diagnostics via GSD file
• Operating Temperature: -25°C to +60°C
• Protection Rating: IP20
• Mounting: Direct plug-in to soft starter communication slot
• Weight: 0.149 kg

Application Scenarios

Process Industry Integration: Connect pump and compressor soft starters to central SCADA systems for coordinated process control in chemical plants, water treatment facilities, and oil & gas operations.

Manufacturing Automation: Integrate conveyor motor controls into factory-wide PROFIBUS networks, enabling synchronized production line management and predictive maintenance scheduling.

Building Management Systems: Link HVAC motor starters to building automation controllers for energy-efficient climate control and remote fault diagnostics in commercial facilities.

Key Benefits & Solutions

This communication module eliminates the need for hardwired control signals by transmitting start/stop commands, parameter sets, and status information digitally over the PROFIBUS network. Engineers gain centralized access to motor current, voltage, temperature warnings, and fault codes without additional I/O wiring, reducing installation costs by up to 40% compared to conventional analog interfaces.

The plug-and-play design allows retrofit installation on existing SIRIUS 3RW44 soft starters without firmware updates or complex configuration procedures. Simply insert the module into the communication slot, assign a PROFIBUS address via rotary switches, and integrate the GSD file into your master controller—commissioning typically completes in under 15 minutes.

Common Questions Answered

Q: Can this module work with other soft starter brands?
A: No, the 3RW4900-0KC00 is designed exclusively for Siemens SIRIUS 3RW44 series soft starters and is not compatible with third-party equipment.

Q: Does it support redundant PROFIBUS configurations?
A: Yes, when used with appropriate DP/DP couplers, the module supports redundant network topologies for high-availability applications.

Q: What diagnostic data is accessible through PROFIBUS?
A: The module provides access to motor current per phase, thermal overload status, network faults, phase sequence errors, and operational hour counters via cyclic and acyclic communication.

Q: Is special software required for configuration?
A: Standard PROFIBUS configuration tools (STEP 7, TIA Portal, or third-party masters) are sufficient. The GSD file is available from Siemens Industry Online Support.

Warranty & Support

Every Siemens 3RW4900-0KC00 module includes a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Our technical support team provides application engineering assistance, GSD file integration guidance, and troubleshooting support throughout the product lifecycle.

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