Description

The Siemens 3RK1301-0CB20-0AB4 is a high-feature (HF) electronic motor starter designed for the Simatic ET 200S distributed I/O system. This unit provides precise control and protection for motors within a current range of 2.4 A to 16.0 A. By integrating motor management directly into the ET 200S architecture, this starter simplifies control logic, reduces wiring complexity, and enables advanced diagnostic monitoring via Profibus DP.

Features

• High-feature (HF) electronic motor starter for Simatic ET 200S.
• Supports direct-on-line (DOL) motor starting.
• Integrated electronic overload and short-circuit protection.
• Diagnostic reporting transmitted directly to the master PLC.
• Supports autonomous control logic for deterministic operation.
• Optimized for distributed I/O applications in automotive, packaging, and material handling.

Technical Specifications

Installation Guidelines

• Ensure the ET 200S base unit is properly mounted on a standard DIN rail before installing the motor starter module.
• Verify that the 24 VDC control power supply is within specified tolerances to prevent erratic operation.
• Always disconnect power before inserting or removing the module from the rack to prevent electrical arcing or damage to the backplane connectors.
• Ensure proper grounding of the ET 200S station to minimize EMI interference, especially when operating in high-noise industrial environments.
• Route communication cables separately from high-voltage power lines to maintain signal integrity on the Profibus DP network.

FAQ

What is the primary function of this module?

This module acts as a distributed motor starter for the Siemens ET 200S system, providing both switching control and motor protection (overload/short-circuit) for motors up to 16 A.

Does this unit require external wiring for diagnostics?

No, diagnostic data is communicated directly to the master PLC via the Profibus DP network, eliminating the need for hard-wired diagnostic signals.

Is this starter suitable for high-speed automated processes?

Yes, its ability to handle autonomous control logic at the device level allows for deterministic start/stop operations, which is ideal for time-critical automation tasks.