Troubleshooting steps
Check ONE diagnostic screen verify system status review plc alarms configuration
Siemens CNC
27965 – PLC alarms alarm (ONE)
PLC alarms detected. Check system status.
Details
PLC alarms detected. Check system status. Siemens ONE PLC alarms. Check system diagnostics and refer to ONE manual.
Error typealarm
MeaningPLC alarms alarm
Typical causesSystem fault configuration error hardware fault communication fault
SolutionsCheck ONE diagnostic screen verify system status review plc alarms configuration
Severityhigh
Catalog references
System Information
Siemens CNC27965
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 ONE?
Siemens ONE is a CNC control platform. This alarm is specific to ONE systems.
Community
Discussion & Experiences
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