Troubleshooting steps
high
SINUMERIK 840D sl
25020 – Axis drive overtemperature
Axis drive temperature exceeded limit
Details
alarm
Error typeDrive temperature
MeaningDrive overheating insufficient cooling overload
Typical causesCheck drive cooling allow drive to cool reduce load verify cooling system
Solutionshigh
Severity25050 30010
Catalog references
System Information
SINUMERIK 840D sl25020
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
How long to cool?
Typically 15-30 minutes. Check drive temperature in diagnostics.
Community
Discussion & Experiences
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