Troubleshooting steps
high
SINUMERIK 840D sl
22050 – Channel not ready
NC channel failed to initialize or is in error state
Details
alarm
Error typeChannel error
MeaningPLC communication error configuration error system startup failure
Typical causesCheck PLC connection verify system configuration restart control system
Solutionshigh
Severity22051 22052
Catalog references
System Information
SINUMERIK 840D sl22050
Utilities
Troubleshooting Steps
Other alarms
Other SINUMERIK 840D sl Alarms
22051 – Channel initialization error
Channel failed to initialize during startup
22052 – Channel mode error
Channel mode conflict or invalid mode
25000 – Emergency stop active
Emergency stop button pressed or safety circuit activated
25050 – Axis hardware fault
Axis drive or motor detected a hardware fault condition
25051 – Axis drive fault
Axis drive detected a fault condition
FAQ
Common questions
What is a channel?
Channel is an NC processing unit that handles program execution and axis control
Community
Discussion & Experiences
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