Troubleshooting steps
Check 808D diagnostic screen verify system status review nc alarms configuration
Siemens CNC
21252 – NC alarms alarm (808D)
NC alarms detected. Check system status.
Details
NC alarms detected. Check system status. Siemens 808D NC alarms. Check system diagnostics and refer to 808D manual.
Error typealarm
MeaningNC alarms alarm
Typical causesSystem fault configuration error hardware fault communication fault
SolutionsCheck 808D diagnostic screen verify system status review nc alarms configuration
Severityhigh
Catalog references
System Information
Siemens CNC21252
Utilities
Troubleshooting Steps
Other alarms
Other Siemens CNC Alarms
22050 – Channel not ready
Channel initialization error
25000 – Emergency stop active
Emergency stop button pressed
25050 – Axis hardware fault
Axis drive hardware error
21000 – NC alarms alarm (808D)
NC alarms detected. Check system status.
21002 – NC alarms alarm (808D)
NC alarms detected. Check system status.
FAQ
Common questions
What is 808D?
Siemens 808D is a CNC control platform. This alarm is specific to 808D systems.