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Siemens SINAMICS G120 CU250S-2 PN Control Unit with PROFINET Industrial Ethernet Communication and High-Precision Motion Control
| Product Series | SINAMICS G120 | Product Type | Compact Control Unit For Modular Drives |
|---|---|---|---|
| Primary Function | Vector Control, Advanced Positioning (EPOS), Safety Integration | Protection Class | IP20 (UL Open Type) |
| Operating Voltage | DC 24V | External Power Supply Voltage Range | DC 20 ... 29 V |
| Weight | Approx. 0.7 Kg | ||
| Highlight | PROFINET Industrial Ethernet Communication SINAMICS G120 Control Unit,High-Precision Motion Control Capability CU250S-2 PN,Flexible I/O Configuration and Scalability Siemens PLC Control Module |
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Siemens 6SL3246-0BA22-1FA0 G120 Control Unit
Product Overview
The6SL3246-0BA22-1FA0is a SINAMICS G120 series control unit manufactured by Siemens, designed as the core control module for modular inverter systems. This CU250S-2 PN control unit combines high-precision motion control with flexible industrial communication capabilities, making it ideal for a wide range of conveyor systems, material handling equipment, machine tools, pumps, fans and other industrial applications. As a proven Siemens industrial automation component, the 6SL3246-0BA22-1FA0 delivers reliable performance, flexible parameter configuration and seamless integration with PROFINET networks, meeting the demanding requirements of modern industrial automation systems for dynamic response and network connectivity.
Siemens SINAMICS G120 series is a modular inverter system that separates control units and power modules, allowing users to freely match different power levels and control functions according to actual application needs. The 6SL3246-0BA22-1FA0 as a high-performance control unit in this series, supports vector control, V/f control and positioning functions, can drive high-precision asynchronous and synchronous motors, with a wealth of on-board I/O interfaces and expandable options, to provide users with a high degree of design flexibility.
Key Technical Specifications
| Parameter | Specification |
| Product Model | 6SL3246-0BA22-1FA0 |
| Product Series | SINAMICS G120 |
| Control Unit Type | CU250S-2 PN |
| Communication Interface | PROFINET IO (2-port switch) |
| Supported Control Modes | V/f control, vector control (VC), encoderless vector control, positioning control |
| On-board Digital Inputs | 6 (24V DC, configurable) |
| On-board Digital Outputs | 3 (24V DC, 0.5A, configurable) |
| On-board Analog Inputs | 2 (±10V / 0(4)-20mA, configurable) |
| On-board Analog Outputs | 2 (0(4)-20mA / ±10V, configurable) |
| Encoder Interfaces | 1 (TTL incremental encoder / HTL incremental encoder compatible) |
| Motor Support | Asynchronous motor, synchronous reluctance motor |
| Memory Card Slot | Support Siemens SD / MMC memory card for parameter cloning and firmware upgrade |
| Power Supply | 24V DC (19.2V ... 28.8V) |
| Power Consumption | Typical 10W |
| Ambient Operating Temperature | -10°C ... +50°C (derating required above 40°C) |
| Degree of Protection | IP20 |
| Installation Method | DIN rail mounting |
| Dimensions (H × W × D) | 180mm × 75mm × 140mm |
| Compatible Power Modules | SINAMICS G120 PM240, PM240-2, PM250 series power modules |
Core Features and Advantages
1. PROFINET Industrial Ethernet Communication
The 6SL3246-0BA22-1FA0 integrates a 2-port PROFINET IO switch, supports real-time communication and line topology, can be seamlessly connected to Siemens S7-1200, S7-1500 and other PLC systems, to achieve high-speed data exchange and centralized control. PROFINET communication not only simplifies field wiring, reduces the cost of network construction, but also supports remote diagnosis and parameter adjustment, which greatly facilitates equipment maintenance and troubleshooting.
2. High-Precision Motion Control Capability
As a high-end control unit of G120 series, CU250S-2 PN supports encoder feedback and high-precision vector control, which can achieve accurate speed and torque control. The built-in positioning function supports point-to-point positioning, homing and travel limit monitoring, can meet the basic motion control requirements of many automated devices, eliminating the need for additional positioning modules, reducing system cost and cabinet space occupation.
3. Flexible I/O Configuration and Scalability
The 6SL3246-0BA22-1FA0 has a wealth of on-board I/O resources, which can meet the control requirements of most conventional applications. It also supports the expansion of additional I/O modules via the local internal bus, which can increase the number of inputs and outputs according to actual needs, with a high degree of application flexibility. All on-board I/O can be freely parameterized to adapt to different signal types and control logic.
4. Simplified Maintenance and Parameter Management
The SD card slot of 6SL3246-0BA22-1FA0 supports one-click parameter cloning, users can copy the parameters of the equipment through the memory card, quickly replace the control unit without re-parameterization, greatly reducing the downtime of equipment maintenance. At the same time, the control unit supports firmware upgrade through the memory card, which is convenient for users to obtain the latest function updates.
5. High Reliability and Compatibility
Produced by Siemens original factory, the 6SL3246-0BA22-1FA0 has passed strict industrial grade testing, with strong anti-electromagnetic interference ability and stable operating performance, can adapt to the harsh industrial environment. It is compatible with all standard SINAMICS G120 series power modules, users can freely match 0.37kW to 250kW power modules according to the power requirements of the load, to build a inverter system that perfectly matches the application.
Typical Applications
- Conveyor systems: belt conveyors, roller conveyors, sorting conveyors in logistics and warehousing industry
- Material handling equipment: cranes, hoists, automated guided vehicles (AGV)
- Machine tools: spindle drive, feed axis drive for various machine tools
- Packaging machinery: constant tension control, position positioning in packaging production lines
- Textile machinery: speed control of spinning and weaving equipment
- Water treatment: speed regulation control of pumps and fans in water supply and drainage systems
- HVAC systems: energy-saving speed control of central air conditioning fans and water pumps
Ordering Information
| Item | Description |
| Full Product Name | Siemens SINAMICS G120 CU250S-2 PN Control Unit |
| Order Number | 6SL3246-0BA22-1FA0 |
| Brand | Siemens |
| Product Condition | New Original (Genuine Factory Sealed) |
| Warranty | 12 Months |
| Shipping | Global Shipping Available |
Why Choose PartsPLC for Your Siemens Components?
PartsPLC is a professional supplier of industrial automation parts, we are committed to providing customers with original genuine Siemens automation products, including the 6SL3246-0BA22-1FA0 control unit. We maintain a large inventory of commonly used Siemens parts, can achieve same-day shipping for most orders, to shorten your equipment downtime. All products sold by us go through strict quality inspection before shipment, to ensure that the product performance meets the factory standard. We provide professional pre-sales technical consultation and after-sales support, to solve your use problems in a timely manner. Whether you need a replacement part for emergency maintenance or a bulk purchase for new equipment projects, we can provide you with a stable supply and competitive price.

