Troubleshooting steps
high
SINUMERIK 840D sl
201000 – Control unit alarm
Control unit closed-loop control alarm
Details
alarm
Error typeControl unit
MeaningControl unit fault closed-loop control error
Typical causesCheck control unit verify closed-loop control restart if necessary
Solutionshigh
Catalog references
System Information
SINUMERIK 840D sl201000
Utilities
Troubleshooting Steps
Other alarms
Other SINUMERIK 840D sl Alarms
22050 – Channel not ready
NC channel failed to initialize or is in error state
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
FAQ
Common questions
What is control unit?
Control unit manages axis and spindle closed-loop control.
Community
Discussion & Experiences
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