Detailed Description:
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Critical Role – Data Retention: This battery module is a key consumable part that ensures data is not lost in the CNC system. When the NCU loses main power, it supplies electricity to prevent data loss in the SRAM due to power failure. This is crucial for maintaining the long-term accuracy and proper operation of the machine tool.
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System Location: It is a dedicated spare part for the NCU module in the SINUMERIK 840D sl system. It is installed directly inside or at a designated location on the NCU module via a specific connector.
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Preventive Maintenance: Batteries have a limited service life, typically several years, and require regular inspection and replacement (recommended annually or as indicated by the system) as part of a preventive maintenance plan. Replacing the battery before its voltage becomes too low avoids the risk of data loss.
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Safety Warning: The battery must be replaced while the system is powered on (“hot swapping”). This prevents the SRAM from losing power during the brief moment of battery replacement, which could cause data loss. Specific steps must be strictly followed according to the official Siemens manual.
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Compatibility: This specific model (1AM02-0CA0) is intended for a specific hardware version of the NCU. Compatibility with the existing NCU model must be confirmed before replacement.
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Typical Application: Used in all CNC machine tools equipped with the SINUMERIK 840D sl system as a standard maintenance spare part for the NCU.
Key Specifications:
| Parameter | Details |
|---|---|
| Model | 6FC5370-1AM02-0CA0 |
| Compatible System | SINATIC SINUMERIK 840D sl (must match specific NCU version) |
| Component Type | Backup Battery Module |
| Primary Function | Powers the NCU’s SRAM during power loss to retain data |
| Data Retained | Machine parameters, tool compensation, zero offsets, PLC retentive data, program buffer, etc. |
| Replacement Characteristic | Must be replaced online (with system powered on) to prevent data loss |
| Maintenance Type | Preventive Maintenance / Periodic Replacement Part |
| Safety Warning | Always follow manual instructions for “hot swap” replacement |
