Troubleshooting steps
high
SINUMERIK 840D sl
300501 – Spindle drive thermal overload
Spindle drive thermal overload protection activated
Details
alarm
Error typeDrive thermal
MeaningDrive overheating insufficient cooling overload continuous operation
Typical causesCheck drive cooling allow drive to cool reduce load verify cooling system
Solutionshigh
Severity30000 25100
Catalog references
System Information
SINUMERIK 840D sl300501
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
Drive damaged?
Check drive condition after cooling. May need service if repeated.
Community
Discussion & Experiences
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