Siemens alarm 2110: NCK temperature alarm
SINUMERIK 808D alarm · Siemens 808D
What it means
The temperature sensor inside the 808D PPU has reached its response threshold, indicating excessive ambient temperature at the panel or in the cabinet. Machining is not interrupted; the alarm displays until the sensor temperature drops by about 7 degrees Celsius.
Likely causes
- Blocked or dirty cabinet filter fans / poor enclosure ventilation
- Ambient temperature above specification
- PPU mounted near heat source such as drives or transformer
Need the part urgently?
Send us alarm 2110 with your machine details — typical RFQ turnaround is 24–48h.