Troubleshooting steps
medium
SINUMERIK 840D sl
60042 – HMI alarm 60042
HMI system alarm 60042
Details
alarm
Error typeHMI error
MeaningHMI fault communication error
Typical causesCheck HMI status verify communication restart HMI
Solutionsmedium
Severity60000
Catalog references
System Information
SINUMERIK 840D sl60042
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
Can I continue?
Limited operation possible but HMI functions may be unavailable for alarm 60042.
Community
Discussion & Experiences
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