The Siemens SINAMICS G120 6SL3224-0BE27-5UA0 represents a pinnacle of engineering in the realm of industrial drive technology. As a core component of the modular SINAMICS G120 series, this specific model is a PM240 Power Module designed to deliver high-performance variable frequency control for three-phase asynchronous motors. It is not merely a power converter; it is a comprehensive solution engineered for applications demanding precise speed control, high overload capacity, and seamless integration into complex automation architectures.
While this specific unit has entered a phase-out status as of 2026, it remains a critical spare part in many high-reliability installations, with a direct upgrade path available via the 6SL3210-1PE22-7UL0.
Core Technical Specifications
This power module is defined by its ability to handle demanding electrical environments with remarkable stability. The specifications below outline its operational envelope:
- Product Identity: SINAMICS G120 PM240 Power Module (Unfiltered version with integrated braking chopper).
- Order Number: 6SL3224-0BE27-5UA0.
- Voltage Class: 380 V to 480 V AC (3-phase input).
- Frequency Range: 47 Hz to 63 Hz (with a maximum output frequency of 650 Hz).
- Current & Power Ratings:
- Rated Output Current: 25 A.
- Heavy Overload (HO): 7.5 kW (150% for 57s, 200% for 3s). This is the "workhorse" rating for constant torque applications like conveyors or compressors.
- Light Overload (LO): 11 kW (110% for 57s, 150% for 3s). Ideal for variable torque applications like pumps and fans.
- Base Load Current: 19 A.
- Control Architecture: Utilizes V/F open-loop control (also referred to as V/F characteristic control), providing excellent dynamic response for general-purpose applications without the complexity of sensor feedback. It also supports advanced control methods when paired with appropriate control units.
- Braking System: Features an integrated braking chopper. External braking resistors can be connected directly via terminals DCP/R1 and R2, allowing for rapid deceleration and energy dissipation during stopping cycles.
- Communication Protocols: Fully compatible with industrial standards including PROFIBUS and PROFINET, ensuring effortless integration into PLC and SCADA systems.
Structural and Mechanical Design
The physical design of the 6SL3224-0BE27-5UA0 is optimized for industrial deployment:
- Form Factor: Frame size FSC (334 mm height x 189 mm width x 185 mm depth / 250 mm with Control Unit).
- Protection Class: IP20, ensuring protection against solid objects larger than 12.5mm (finger-safe) but requiring installation within a control cabinet.
- Cooling Requirements: Requires a cooling air flow of at least 0.024 m³/s (approx.0.85 cfm) to maintain thermal stability at rated load.
- Installation: Designed for screw mounting (M5 screws for FSC size) with specific clearance requirements—100 mm clearance at the top/bottom and 50 mm on the sides for adequate ventilation.
- Interfaces:
- Power Connections: Screw terminals for Line (L1, L2, L3) and Motor (U2, V2, W2) supporting conductors up to 10 mm² (power) and 6 mm² (control).
- DC Link: Terminals for braking resistor connection (2.5 mm² to 10 mm²).
- PM-IF Interface: A dedicated port for communication with the Control Unit (CU), which is sold separately.6SL3224-0BE27-5UA0 does not include a control unit or Basic Operator Panel (BOP).
Application Domains
The versatility of the PM240 module allows it to serve a wide spectrum of industries. Its robust design makes it suitable for:
- Material Handling & Logistics: Conveyor systems, sorting machines, and packaging equipment where precise speed regulation and high starting torque are essential.
- Process Industry: Pumps, fans, and mixers in water treatment, chemical processing, and HVAC systems, leveraging its energy-saving potential through variable speed control.
- Heavy Manufacturing: Metalworking, steel mills, and textile machinery that require high overload capacity to handle sudden load changes.
- Infrastructure: Applications in the energy sector, including wind and hydro power auxiliary systems, and rail transportation.
Safety and Functional Integration
A standout feature of this module is its capability for Integrated Safety. When paired with a Control Unit that possesses safety functions (e.g., "F" series CUs), the entire drive system can achieve SIL 3 / Cat. 4 / PLe safety ratings. This eliminates the need for external contactors for safe torque off (STO), simplifying wiring and reducing cabinet space.
Furthermore, the module supports bi-directional power flow capabilities. Through the DC link, it can buffer regenerative energy from the motor (e.g., during a load's descent) and manage dynamic braking, ensuring system stability even during power faults.
