Troubleshooting steps
Check PLC connection verify system configuration restart control system
Siemens CNC
22050 – Channel not ready
Channel initialization error
Details
NC channel failed to initialize or is in error state.
Error typealarm
MeaningChannel error
Typical causesPLC communication error configuration error system startup failure
SolutionsCheck PLC connection verify system configuration restart control system
Severityhigh
Catalog references
System Information
Siemens CNC22050
Utilities
Troubleshooting Steps
Other alarms
Other Siemens CNC Alarms
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.
21006 – NC alarms alarm (808D)
NC alarms detected. Check system status.
FAQ
Common questions
What is a channel?
Channel is an NC processing unit that handles program execution and axis control.