Siemens Sinamics G120 Control unit, w/o power module + panel

Product Overview

The Siemens 6SL3244-0BB12-1BA1 is the Siemens SINAMICS G120 Control Unit CU240E-2. This control unit functions as the intelligence of the SINAMICS G120 modular drive system, providing motor control, diagnostics, input and output handling, and communication functions. It supports both V/f and vector control modes and is designed for use with compatible SINAMICS G120 power modules in a wide range of industrial drive and automation applications.

Key Features

• Control Unit CU240E-2 for SINAMICS G120 modular inverters
• Operates on 24 V DC control supply
• Integrated digital and analog inputs and outputs
• Supports V/f and sensorless vector motor control
• RS-485 interface for USS and Modbus RTU communication
• LED indicators for operation and diagnostic status
• Modular, replaceable unit for flexible drive configuration
• Fully compatible with SINAMICS G120 power modules (PM230, PM240, PM250 series)
• Suitable for use in industrial control cabinets

Technical Specifications

• Article Number: 6SL3244-0BB12-1BA1
• Product Type: CU240E-2 Control Unit
• Supply Voltage: 24 V DC
• I/O Configuration: Multiple digital inputs and outputs, analog input channels
• Communication: RS-485 (USS, Modbus RTU)
• Motor Control Modes: V/f, V/f with encoder, vector control without encoder
• Protection Rating: IP20
• Mounting: DIN-rail or panel mounting
• Dimensions: Approx. 73 mm (W) × 199 mm (H)
• Weight: Approx. 0.5 kg
• Compatible Power Modules: SINAMICS G120 PM230, PM240, PM250

Compliance & Certifications

• Designed in accordance with SINAMICS G120 system standards
• Meets industrial automation and drive control safety requirements
• Suitable for industrial environments and enclosed panel installations

Applications

This CU240E-2 control unit is used for speed and torque control of motors in SINAMICS G120 drive systems. It is well suited for conveyors, pumps, fans, compressors, packaging machinery, general automation systems, and any application requiring reliable, flexible motor control. Its modular design allows easy replacement or upgrading without altering existing power modules or control infrastructure.