Sinumerik Alarm 2100 NCK battery warning threshold reached
The under voltage monitor of the NCK battery has reached the pre warning threshold.This is at 2.7-2.9V (nominal voltage of the battery is 3.0-3.1V at 950mAh).
– Alarm display.
Please inform the authorized personnel/service department. The battery must be replaced within the next 6 weeks. After this period, the voltage can drop below the alarm limit of 2.4-2.6V if the RAMs to be buffered take up a lot of current.
Clear alarm with the Delete key or NC START.
- Siemens Diagnostics Guide by Siemens