6SE6440-2UD23-0BA1 SIEMENS Variable Frequency Inverter 380 … 415 V IP20

6SE6440-2UD23-0BA1 SIEMENS Variable Frequency Inverter 380 … 415 V IP20

6SE6440-2UD23-0BA1 Description

6SE6440-2UD23-0BA1 Features

• Advanced Vector Control:​ Features both Voltage/Frequency (V/f) control​ and sophisticated Sensorless Vector Control (SVC), enabling high starting torque, precise speed regulation, and improved dynamic performance without a feedback encoder.
• Flexible I/O & Connectivity:​ Equipped with extensive programmable digital and analog inputs/outputs. Features an integrated RS-485 serial interface​ supporting the USS protocol and, crucially, the PROFIBUS-DP​ fieldbus communication via an optional plug-in module, enabling seamless integration into factory automation networks.
• Comprehensive Application Macros:​ Includes multiple pre-programmed application-specific parameter sets (macros) for quick commissioning of common tasks like pumps, fans, and conveyors.
• Integrated Functions:​ Contains a wide array of built-in features such as a built-in Brake Chopper​ for dynamic braking, a PID controller for process control, a flying restart function, and DC braking.
• User-Friendly Operation:​ Can be controlled and parameterized via a detachable Basic Operator Panel (BOP-2) or Advanced Operator Panel (AOP), as well as via PC software (STARTER or DRIVE MONITOR).
• Robust Protection & Safety:​ Offers comprehensive protective functions for the drive and motor, including overvoltage/undervoltage, overload, short-circuit, ground fault protection, and motor temperature monitoring via PTC/KTY sensor inputs.

6SE6440-2UD23-0BA1 Material & Applications

• Enclosure:​ Constructed with a robust metal casing (for heatsink) and a durable plastic (PBT) cover, rated for IP20​ protection. Designed for installation inside a sealed control cabinet.
• Internal Components:​ Utilizes high-quality IGBTs, a large DC-link capacitor, and a sophisticated control board with a microcontroller for advanced processing.
• Cooling:​ Efficient cooling via an integrated aluminum heatsink; requires natural convection with adequate clearances. Available in chassis-type format for heatsink mounting to a backplate.
• Protection Rating:​ IP20​ (Protects against contact with live parts by objects larger than 12.5mm; no protection against liquids). Higher protection classes (IP55/IP65) require an external enclosure.
• Primary Applications:​ Suited for a wide range of medium-performance industrial automation tasks:
  • Industrial Pumps & Fans:​ Precise flow and pressure control in water treatment, HVAC, and industrial processes.
  • Complex Conveyor Systems:​ Multi-motor coordination, tension control, and high-torque starting.
  • Mixers & Agitators:​ Constant torque applications requiring controlled acceleration.
  • Basic Machine Tools:​ Controlling feed drives, spindles, and auxiliary axes.
  • Material Handling:​ Cranes, hoists, and escalators requiring smooth speed profiles.

6SE6440-2UD23-0BA1 Key Parameters