Siemens 6SN1145-1BA01-0BA1 SIMODRIVE 611 Infeed/Regenerative Feedback Module

The Siemens 6SN1145-1BA01-0BA1 is a high-performance infeed/regenerative feedback module from the renowned SIMODRIVE 611 drive system. This stabilized infeed module serves as the central power supply unit for the drive group, converting three-phase AC line voltage into a stable DC link voltage for connected motor modules. A key feature of this module is its regenerative capability, which enables energy recovery during motor braking operations. Instead of dissipating braking energy as heat through external resistors, the module feeds this energy back into the power grid, significantly improving overall system efficiency while reducing cooling requirements and operating costs.

Regenerative Energy Recovery Technology

Unlike standard diode bridge infeed modules that simply rectify AC power, the 6SN1145-1BA01-0BA1 incorporates regenerative IGBT technology that allows bidirectional power flow. During normal motoring operation, the module rectifies AC line voltage to supply the DC link. When a motor decelerates and acts as a generator, the module converts the DC link energy back into AC power synchronized with the utility grid, feeding it back to the mains supply. This closed-loop energy management system dramatically reduces overall power consumption in multi-axis drive systems, with typical energy savings of 20-40% in cyclic duty cycle applications such as punching, pressing, and CNC machining centers.

Key Features

• Stabilized Infeed: Provides regulated DC link voltage independent of line variations

• Energy Recovery: Regenerative feedback capability returns braking energy to the grid

• Internal Cooling: Built-in forced air cooling system with temperature monitoring

• Mains Contactor: Integrated mains contactor with break contact for safe disconnection

• Sinusoidal Mains Current: Low harmonic distortion compliant with international power quality standards

• Booksize Compact Design: Space-saving form factor for high-density control cabinet installations

Technical Specifications

SIMODRIVE 611 System Integration

The SIMODRIVE 611 modular drive system is designed for high-precision motion control applications in CNC machine tools, robotics, and general industrial automation. The 6SN1145-1BA01-0BA1 infeed module serves as the power hub for the entire drive group, supplying DC link power to multiple axis modules connected to the same bus. Features such as optimized pulse patterns and extended safety integrated functions provide superior motor control performance while ensuring compliance with international safety standards. The module supports communication with SIMODRIVE 611 control units via the system bus, enabling coordinated motion control across multiple axes.

Compatibility and Applications

• CNC Machine Tools: Spindle drives and feed axes requiring high dynamic response

• General Automation: Multi-axis motion control systems with regenerative braking requirements

• Material Handling: Cranes, hoists, and elevators with frequent start-stop cycles

• Process Industries: Winding and unwinding stations with regenerative operation

• Test Stands and Dynamometers: Applications requiring bidirectional power flow

Regulatory Compliance

The 6SN1145-1BA01-0BA1 complies with international standards including IEC, UL, and RoHS requirements for lead and hazardous substance restrictions. The module meets REACH regulations and is designed for operation in industrial environments with adequate air circulation for cooling. Its compact dimensions and standardized industrial design ensure seamless integration into new and retrofit applications, providing reliable power management for critical drive systems in industrial automation settings.