Siemens 6DD2920-0BB0 LES1 interface module for SIMADYN D system, used for thyristor pulse trigger and monitoring in high-power converter drive equipment.

Product Overview

Siemens 6DD2920-0BB0 is an LES1 interface module of the SIMADYN D control platform. It connects the main processor and power unit, responsible for pulse signal transmission, thyristor working status monitoring and fault interlock protection. It matches SAV1, SAV21, SAV22 racks, widely used for high-power rectifier and inverter control.

Key Features

• Real-time transmission of firing pulse signals for thyristor bridge
• Continuous monitoring of pulse circuit and power device status
• Fast fault detection and pulse blocking protection function
• Optoelectronic isolation design, strong anti-interference performance

• Rack-mounted modular structure, convenient for maintenance and replacement

Technical Specifications

• Brand: Siemens
• Model: 6DD2920-0BB0
• Type: LES1 Interface Module
• System: SIMADYN D
• Compatible Rack: SAV1, SAV21, SAV22
• Power Supply: DC24V
• Working Temperature: -20℃ ~ +60℃

• Application: High-power thyristor converter control

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Application

Metallurgical rolling mill drive, DC speed regulation system, generator excitation converter, heavy industrial variable speed equipment, old SIMADYN D system spare replacement.