Troubleshooting steps
high
SINUMERIK 840D
Drive system detected an alarm condition
alarm
Catalog references
Utilities
Troubleshooting steps
high
Other alarms
NC channel failed to initialize or is in error state
Emergency stop button pressed or safety circuit activated
Axis drive or motor detected a hardware fault condition
Drive communication error with control
System initialization error or configuration fault
FAQ
What drive?
Check alarm message for specific drive number and axis
Community
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