Siemens 6ES7197-1LA12-0XA0
**Siemens 6ES7197-1LA12-0XA0** is a **load current feed module** (also known as a feed terminal module) designed for the **SIMATIC ET 200SP** distributed I/O system. Below is a detailed introduction: **1. Product Function**
- **Purpose**: Provides **24V DC power feed** for the load group of the ET 200SP system, ensuring stable power supply to back-end I/O modules or sensors/actuators.
- **Installation Position**: Mounted on the DIN rail of the ET 200SP, located **between BaseUnits**, to extend power distribution.
- **Load Group Isolation**: Divides the ET 200SP load groups into separate power segments for electrical isolation, improving system reliability.
**2. Key Features**
- **Rated Voltage**: 24V DC (compliant with SELV/PELV standards).
- **Maximum Current**: **10A** (the total current per load group must be calculated to avoid overload).
- **Electrical Isolation**: Isolates power between load groups to prevent fault propagation.
- **Compatibility**:
- Compatible with all ET 200SP BaseUnits (e.g., BU Type A0/B0/C0).
- Must be used with ET 200SP power modules (e.g., PM-E or PM-S).
- **Mechanical Characteristics**:
- Width: 15 mm (standard module width).
- Mounting: Snap-on installation on DIN rail.
**3. Typical Applications**
- **Multi-Load Group Power Supply**: Used to segment power when the ET 200SP system requires independent power for multiple load groups (e.g., digital/analog modules, communication modules).
- **Redundant Design**: Isolates different load groups to prevent a single power failure from affecting the entire system.
- **Industrial Environments**: Suitable for automation production lines, process control, and machinery manufacturing.
**4. Wiring & Configuration**
- **Terminals**: Screw terminals for power cable connections (input side connects to the power module, output side connects to subsequent BaseUnits).
- **Configuration Rules**:
- Each load group’s current demand must be calculated separately to ensure it does not exceed the 10A limit.
- Must comply with Siemens ET 200SP installation guidelines (e.g., module arrangement, grounding requirements).
**5. Related Accessories**
- **Matching Power Module**: E.g., **6ES7135-6PA00-0BD0** (PM-E power module).
- **BaseUnit**: E.g., **6ES7193-6PA00-0AA0** (Type A0 BaseUnit).
**6. Notes**
- **Overload Protection**: It is recommended to add a circuit breaker or fuse (e.g., 10A protection) at the power input.
- **Heat Dissipation**: Ensure proper ventilation to avoid high temperatures affecting module lifespan.
- **Documentation**: Refer to Siemens manual **"SIMATIC ET 200SP Distributed I/O System"** for detailed specifications.
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